CN105099301A - Method for remote speed regulation of stepping motor - Google Patents

Method for remote speed regulation of stepping motor Download PDF

Info

Publication number
CN105099301A
CN105099301A CN201510386832.6A CN201510386832A CN105099301A CN 105099301 A CN105099301 A CN 105099301A CN 201510386832 A CN201510386832 A CN 201510386832A CN 105099301 A CN105099301 A CN 105099301A
Authority
CN
China
Prior art keywords
speed
control
power frequency
frequency period
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510386832.6A
Other languages
Chinese (zh)
Other versions
CN105099301B (en
Inventor
凌云
肖伸平
陈刚
孔玲爽
曾红兵
聂辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING MEILIAN TAIKE BIOTECHNOLOGY Co.,Ltd.
Original Assignee
Hunan University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan University of Technology filed Critical Hunan University of Technology
Priority to CN201710790927.3A priority Critical patent/CN107508513B/en
Priority to CN201510386832.6A priority patent/CN105099301B/en
Publication of CN105099301A publication Critical patent/CN105099301A/en
Application granted granted Critical
Publication of CN105099301B publication Critical patent/CN105099301B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/14—Arrangements for controlling speed or speed and torque

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Ac Motors In General (AREA)
  • Rectifiers (AREA)

Abstract

A method for remote speed regulation of a stepping motor is achieved by a device composed of a rectification control unit and a speed regulation unit. The rectification control unit is used for inputting a single-phase 220V alternating current power supply, outputting a controlled rectification voltage subjected to voltage drop by a transformer and sending a speed control signal comprising a motor running direction and a running speed level in the controlled rectification voltage; the speed control signal comprises a speed data wave composed of direction guide waves of three power frequency periods and a plurality of power frequency periods; and the speed regulation unit is used for inputting the controlled rectification voltage containing the speed control signal and controlling the speed of the stepping motor. In the method, a remote controller is not needed, a control line is unnecessarily and independently laid, a single-phase power line is directly used for transmitting the speed control signal, and remote control and regulation on the speed of the stepping motor can be achieved.

Description

The method of the remote speed governing of a kind of stepping motor
Technical field
The present invention relates to a kind of electric machine speed regulation technology, the method for the remote speed governing of especially a kind of stepping motor.
Background technology
Need to carry out Long-distance Control with when regulating to the speed of stepping motor, usual way has:
One is adopt remote controller to control.The Drive and Control Circuit of stepping motor is equipped with remote control device, can carry out step speed regulation or stepless speed regulation by remote controller to stepping motor, and its shortcoming needs to be equipped with remote controller, and management trouble, remote controller is also easily lost.
Two is adopt digital control technology.Such as, the speed of RS-485 bus to stepping motor is adopted to control.Program advanced technology, but cost is high, and system, except power line laid by needs, also needs to lay digital control bus.
Three is adopt analog signal control technology.Such as, adopt long-range potentiometer to carry out speeds control, cost is lower.But the method needs to increase control line equally, and antijamming capability is poor.
Summary of the invention
Object of the present invention aims to provide a kind of when not increasing control signal wire and not using a teleswitch, and utilizes single phase poaer supply line to realize the method for the remote speed governing of stepping motor.
For achieving the above object, the technical scheme that the present invention takes is:
A method for the remote speed governing of stepping motor, the device be made up of Commutation control unit and speed regulation unit realizes.
Described Commutation control unit is provided with phase line input terminal, zero line input terminal, the first controlled rectification lead-out terminal, the second controlled rectification lead-out terminal; Described phase line input terminal, zero line input terminal input single-phase 220V AC power; Described first controlled rectification lead-out terminal, the second controlled rectification lead-out terminal export controlled rectification voltage.
Described speed regulation unit is provided with the first controlled rectification input terminal, the second controlled rectification input terminal, and described first controlled rectification input terminal, the second controlled rectification input terminal are connected to the first controlled rectification lead-out terminal, the second controlled rectification lead-out terminal of Commutation control unit respectively.
Described Commutation control unit is made up of transformer, control power module, controllable rectifier module, zero passage detection module, single chip control module, trigger control module, speed preset module.
Two input terminals of described transformer are respectively phase line input terminal, zero line input terminal, and two lead-out terminals are respectively the first ac terminal, the second ac terminal; Described first ac terminal, the second ac terminal export the second AC power.
Described control power module, by controlling power supply single-phase rectification bridge and the first filter regulator circuit forms, exports the first DC supply; Two ac input ends of described control power supply single-phase rectification bridge are connected to the first ac terminal, the second ac terminal respectively; The rectification negative polarity end of described control power supply single-phase rectification bridge is publicly.
Described controllable rectifier module is made up of rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2, bidirectional thyristor V3, bidirectional thyristor V4; 2 ac input ends of described rectifier bridge UR1 are connected to the first ac terminal and the second ac terminal respectively, and rectification output plus terminal is connected to the second plate of bidirectional thyristor V3, and rectification exports the second plate that negative terminal is connected to bidirectional thyristor V4; The first controlled rectification lead-out terminal is connected to after the first anode of bidirectional thyristor V1 is in parallel with the first anode of bidirectional thyristor V3; The second plate of bidirectional thyristor V1 is connected to the first ac terminal; The second controlled rectification lead-out terminal is connected to after the first anode of bidirectional thyristor V2 is in parallel with the first anode of bidirectional thyristor V4; The second plate of bidirectional thyristor V2 is connected to the second ac terminal.
Described trigger control module is provided with and exchanges control input end, rectify control input; When the AC controling signal of described interchange control input end input is effective, triggering and conducting when trigger control module control bidirectional thyristor V1 and bidirectional thyristor V2 zero passage; When the AC controling signal of described interchange control input end input is invalid, trigger control module is ended after controlling bidirectional thyristor V1 and bidirectional thyristor V2 zero passage; When the rectify control signal of described rectify control input input is effective, triggering and conducting when trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passage; During the rectify control invalidating signal that described rectify control input inputs, trigger control module is ended after controlling bidirectional thyristor V3 and bidirectional thyristor V4 zero passage.
Described zero passage detection module is provided with zero passage voltage input, zero-crossing pulse output; Described zero passage voltage input is connected to the first ac terminal; The zero-crossing pulse that described zero-crossing pulse output exports is positive pulse; Described zero-crossing pulse is corresponding with the second AC power positive half wave; The width of described zero-crossing pulse is less than the second AC power positive half wave width; Described second AC power positive half wave is the second AC power half-wave of the first ac terminal current potential higher than the second ac terminal current potential.
Described speed preset module is provided with speed preset signal output part and direction Setting signal output.
Described single chip control module includes speed preset signal input part, direction Setting signal input, signal acquisition input and two-way level signal output; Described speed preset signal input part is connected to the speed preset signal output part of speed preset module; Described direction Setting signal input is connected to the direction Setting signal output of speed preset module; Described signal acquisition input is connected to the zero-crossing pulse output of zero passage detection module; Described two-way level signal output is respectively and exchanges control output end, rectify control output; Described interchange control output end, rectify control output are connected to interchange control input end, the rectify control input of trigger control module respectively.
Described speed regulation unit forms by regulating power module, waveform sampling module, single-chip microcomputer adjustment module, driving stepper motor module.
Described adjustment power module inputs controlled rectification voltage, exports the second DC supply, is made up of adjustment power supply single-phase rectification bridge and the second filter regulator circuit; The rectification negative polarity end of described adjustment power supply single-phase rectification bridge is with reference to ground.
Described waveform sampling module is provided with sampling Waveform Input end and sampling pulse output; Described sampling Waveform Input end is connected to the second controlled rectification input terminal; Described waveform sampling module is detected higher than the waveform of the first controlled rectification input terminal current potential by the second controlled rectification input terminal current potential and amplitude limit obtains sampling pulse; The positive pulse of described sampling pulse is corresponding higher than the waveform of the first controlled rectification input terminal current potential with the second controlled rectification input terminal current potential.
Described single-chip microcomputer adjustment module has seizure input and speed-regulating pulse output, direction controlling output; The seizure input of single-chip microcomputer adjustment module is connected to the sampling pulse output of waveform sampling module.
Described driving stepper motor module is used for Driving Stepping Motor, is provided with speed-regulating pulse input, direction controlling input; Described speed-regulating pulse input is connected to the speed-regulating pulse output of single-chip microcomputer adjustment module, and direction controlling input is connected to the direction controlling output of single-chip microcomputer adjustment module.
Described Commutation control unit carrys out transmission speed control signal by controlling controlled rectification voltage, and speed control signal is by direction guide wave and speed data wave component.
Described direction guide wave has two kinds; When control step motor rotates forward, direction guide wave is made up of the waves AC of 2 power frequency period rectified wave and 1 power frequency period, and rectified wave is front, and waves AC is rear; During control step motor reversal, direction guide wave is made up of the waves AC of 1 power frequency period rectified wave and 2 power frequency periods, and rectified wave is front, and waves AC is rear.
Described speed data ripple is xthe controlled rectification voltage wave of individual power frequency period, xfor being more than or equal to the integer of 2.
Described speed control signal has speed 1- n, altogether nindividual speed class; The speed class of described speed preset signal has speed 1- n; nfor being more than or equal to the integer of 2.
Described speed data ripple is xthe controlled rectification voltage wave of individual power frequency period, xfor being more than or equal to the integer of 2.
Described xin the controlled rectification voltage wave of individual power frequency period, 1 corresponding 1 bit rate code of power frequency period; xthe controlled rectification voltage wave of individual power frequency period is corresponding xbit rate code.Described speed code is binary code.
Described nwith xbetween pass be: nbe less than or equal to 2 x .
The method that described single chip control module sends a speed control signal is,
Step 1, waits for, until enter step 2 when receiving the rising edge of zero-crossing pulse;
Step 2, stops exchanging output, starts rectification and exports; Wait for, until enter step 3 when receiving the rising edge of zero-crossing pulse;
Step 3, sends the direction wave of 1 power frequency period; Wait for, until enter step 4 when receiving the rising edge of zero-crossing pulse;
Step 4, stops rectification exporting, and starts to exchange to export; Wait for, until enter step 5 when receiving the rising edge of zero-crossing pulse;
Step 5, sends the controlled rectification voltage wave of 1 power frequency period; Wait for, until enter step 6 when receiving the rising edge of zero-crossing pulse;
Step 6, sends xforward step 7 to during the controlled rectification voltage wave of individual power frequency period, otherwise return step 5;
Step 7, stops rectification exporting, and starts to exchange to export.
The method of described Commutation control unit transmission speed control signal is,
Steps A, reads Setting signal;
Step B, sends a speed control signal;
Step C, judges whether speed changes, and speed changes, and returns step B; Speed does not change, and returns step C.
Described speed regulation unit inbound pacing control signal also regulates the method for stepper motor speed to be,
Step one, Electric Machine Control initialization;
Step 2, has judged whether speed control signal; There is no speed control signal, return step 2; There is speed control signal, forward step 3 to;
Step 3, inbound pacing control signal;
Step 4, regulates stepper motor speed; Return step 2.
Describedly judged whether speed control signal, method is for judge whether there is direction guide wave in controlled rectification voltage.
Describedly judge whether to have in controlled rectification voltage the method for direction guide wave to be judge to exceed after power frequency period square wave in sampling pulse the interval power frequency period number of low level of power frequency period width; Have in sampling pulse after power frequency period square wave power frequency period number be 2 low level interval, then have the direction guide wave that control step motor rotates forward in controlled rectification voltage; Have in sampling pulse after power frequency period square wave power frequency period number be 1 low level interval, then have the direction guide wave of control step motor reversal in controlled rectification voltage; Do not have in sampling pulse after power frequency period square wave power frequency period number be 1 or 2 low level interval, then there is no direction guide wave in controlled rectification voltage.
The method exceeding the interval power frequency period number of low level of power frequency period width in described judgement sampling pulse after power frequency period square wave is, width is measured to the low level pulse exceeding power frequency period width after power frequency period square wave in sampling pulse, if measure the low level pulse width exceeding power frequency period width obtained is w, then the power frequency period number in this low level interval is INT( w/20); The function of INT function is that fractions omitted part rounds.
The method of described inbound pacing control signal is, receives xthe controlled rectification voltage wave of individual power frequency period is converted to xbit rate code, is converted to the speed class of speed control signal by speed code.
Described reception xthe controlled rectification voltage wave of individual power frequency period is converted to xbit rate code, its method is:
After the guide wave of direction xin individual power frequency period interval, when the sampling pulse in 1 power frequency period interval is low level, this bit rate code is 1 accordingly, when the sampling pulse in 1 power frequency period interval be 1 duty ratio be less than the square wave of 50% time, this bit rate code is 0 accordingly;
Its method or:
After the guide wave of direction xin individual power frequency period interval, when the sampling pulse in 1 power frequency period interval is low level, this bit rate code is 0 accordingly, when the sampling pulse in 1 power frequency period interval be 1 duty ratio be less than the square wave of 50% time, this bit rate code is 1 accordingly.
Described stopping exchanges and exports, and refers to that controlling to exchange control output end exports invalid signals; Described beginning rectification exports, and refers to that controlling rectify control output exports useful signal; Described beginning exchanges output, refers to that controlling to exchange control output end exports useful signal; Described stopping rectification exporting, and refers to that controlling rectify control output exports invalid signals.
The described method judging whether speed changes is that the speed class of speed preset signal changes, or direction Setting signal changes, then speed changes.
The method of described adjustment stepper motor speed is, in the speed control signal that single-chip microcomputer adjustment module receives, when direction guide wave does not change, according to the speed of the speed class control step motor of speed code correspondence; In the speed control signal that single-chip microcomputer adjustment module receives, when direction guide wave changes, the stall of first control step decelerating through motor, then the speed of speed class control step motor according to speed code correspondence.
The invention has the beneficial effects as follows, adopt power line far distance controlled stepper motor speed, without the need to remote controller, without the need to control line; Stepper motor speed can be divided into multiple grade as required; Adopt rectified wave transfer rate control signal, its effective value is identical with waves AC, the instability of power supply when stepper motor speed can not be caused to regulate.
Accompanying drawing explanation
Fig. 1 is system architecture diagram.
Fig. 2 is Commutation control unit structure chart.
Fig. 3 is controllable rectifier module embodiment circuit diagram.
Fig. 4 is trigger control module embodiment circuit diagram.
Fig. 5 is control section embodiment circuit diagram in Commutation control unit.
Fig. 6 is waveform schematic diagram when sending forward direction speed control signal.
Fig. 7 is waveform schematic diagram when sending inverted speed control signal.
Fig. 8 is speed control signal sending method.
Fig. 9 is speed regulation unit structure chart.
Figure 10 is speed regulation unit adjustment portion embodiment circuit diagram.
Figure 11 is driving stepper motor module embodiments circuit diagram.
Figure 12 is that speed receives and control method.
Embodiment
Below by accompanying drawing, also the present invention is described in further detail in conjunction with the embodiments, but embodiments of the present invention are not limited thereto.
The system architecture diagram realizing the inventive method device as shown in Figure 1, is made up of Commutation control unit and speed regulation unit.Commutation control unit, by phase line input terminal L, zero line input terminal N input single-phase 220V AC power, exports controlled rectification voltage by the first controlled rectification lead-out terminal AC1, the second controlled rectification lead-out terminal AC2.Speed regulation unit inputs controlled rectification voltage and control step motor speed by the first controlled rectification input terminal AC1, the second controlled rectification input terminal AC2.
The structure of Commutation control unit as shown in Figure 2, is made up of transformer, control power module, controllable rectifier module, zero passage detection module, single chip control module, trigger control module, speed preset module.
Two input terminals of transformer are respectively phase line input terminal L, zero line input terminal N, and two lead-out terminals are respectively the first ac terminal L1, the second ac terminal N1.First ac terminal L1, the second ac terminal N1 export the second AC power.The voltage effective value of the single-phase 220V AC power that the voltage effective value of the second AC power inputs lower than Commutation control unit.
The embodiment of controllable rectifier module as shown in Figure 3, is made up of rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2, bidirectional thyristor V3, bidirectional thyristor V4.2 ac input ends of rectifier bridge UR1 are connected to the first ac terminal L1 and the second ac terminal N1 respectively, and rectification output plus terminal is connected to the second plate of bidirectional thyristor V3, and rectification exports the second plate that negative terminal is connected to bidirectional thyristor V4; The first controlled rectification lead-out terminal AC1 is connected to after the first anode of bidirectional thyristor V1 is in parallel with the first anode of bidirectional thyristor V3; The second plate of bidirectional thyristor V1 is connected to the first ac terminal L1; The second controlled rectification lead-out terminal AC2 is connected to after the first anode of bidirectional thyristor V2 is in parallel with the first anode of bidirectional thyristor V4; The second plate of bidirectional thyristor V2 is connected to the second ac terminal N1.
The trigger impulse of bidirectional thyristor V1 controls pole K11 and first anode K12 from it and inputs, the trigger impulse of bidirectional thyristor V2 controls pole K21 and first anode K22 from it and inputs, the trigger impulse of bidirectional thyristor V3 controls pole K31 and first anode K32 from it and inputs, and the trigger impulse of bidirectional thyristor V4 controls pole K41 and first anode K42 from it and inputs.
Rectifier bridge UR1 adopts single-phase rectification bridge stack, or adopts 4 diode composition single-phase rectification bridges to replace.
Trigger control module is the circuit meeting following functions: be provided with and exchange control input end, rectify control input; When the AC controling signal of interchange control input end input is effective, triggering and conducting when trigger control module control bidirectional thyristor V1 and bidirectional thyristor V2 zero passage; When the AC controling signal of interchange control input end input is invalid, trigger control module is ended after controlling bidirectional thyristor V1 and bidirectional thyristor V2 zero passage; When the rectify control signal of rectify control input input is effective, triggering and conducting when trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passage; During the rectify control invalidating signal that rectify control input inputs, trigger control module is ended after controlling bidirectional thyristor V3 and bidirectional thyristor V4 zero passage.
The embodiment of trigger control module as shown in Figure 4, is made up of zero cross fired optocoupler U1-U4 and input current-limiting resistance R1-R4, output current limiting resistance R5-R8, is provided with and exchanges control input end KJ, rectify control input KZ.The inside of zero cross fired optocoupler U1-U4 includes input light-emitting diode, exports optical controlled bidirectional thyrister, and zero-cross triggering circuit.The model of zero cross fired optocoupler U1-U4 is selected in MOC3041, MOC3042, MOC3043, MOC3061, MOC3062, MOC3063.
Input current-limiting resistance R1 connects with the input light-emitting diode of zero cross fired optocoupler U1, and series circuit is connected in parallel to the first DC supply VDD1 again and exchanges control input end KJ.Input current-limiting resistance R1 is connected on the input light-emitting diodes tube anode of zero cross fired optocoupler U1, as shown in Figure 4; Input current-limiting resistance R1 also can be connected on the negative electrode of the input light-emitting diode of zero cross fired optocoupler U1.
Input current-limiting resistance R2 connects with the input light-emitting diode of zero cross fired optocoupler U2, and series circuit is connected in parallel to the first DC supply VDD1 again and exchanges control input end KJ.Input current-limiting resistance R3 connects with the input light-emitting diode of zero cross fired optocoupler U3, and series circuit is connected in parallel to the first DC supply VDD1 and rectify control input KZ again.Input current-limiting resistance R4 connects with the input light-emitting diode of zero cross fired optocoupler U4, and series circuit is connected in parallel to the first DC supply VDD1 and rectify control input KZ again.Input current-limiting resistance R2-R4 can be connected on the input light-emitting diodes tube anode of corresponding zero cross fired optocoupler, as shown in Figure 4; Also the input light-emitting diodes tube cathode of corresponding zero cross fired optocoupler can be connected on.
Output current limiting resistance R5 exports with zero cross fired optocoupler U1 inside the control pole K11 and the first anode K12 that are connected in parallel to bidirectional thyristor V1 after optical controlled bidirectional thyrister is connected again; Output current limiting resistance R6 exports with zero cross fired optocoupler U2 inside the control pole K21 and the first anode K22 that are connected in parallel to bidirectional thyristor V2 after optical controlled bidirectional thyrister is connected again; Output current limiting resistance R7 exports with zero cross fired optocoupler U3 inside the control pole K31 and the first anode K32 that are connected in parallel to bidirectional thyristor V3 after optical controlled bidirectional thyrister is connected again; Output current limiting resistance R8 exports with zero cross fired optocoupler U4 inside the control pole K41 and the first anode K42 that are connected in parallel to bidirectional thyristor V4 after optical controlled bidirectional thyrister is connected again.
In Commutation control unit, control section comprises control power module, zero passage detection module, single chip control module, speed preset module, and embodiment circuit as shown in Figure 5.
Controlling power module and be input as the second AC power, exporting the first DC supply VDD1 for providing to Commutation control unit.In Fig. 5 embodiment, control power module and be made up of diode D01, diode D02, diode D03, diode D04, electric capacity C1, three terminal regulator U5.Diode D01, diode D02, diode D03, diode D04 composition control power supply single-phase rectification bridge; Electric capacity C1 is connected in parallel on the DC voltage output end controlling power supply single-phase rectification bridge, strobes; Three terminal regulator U5 input VIN is connected to the rectification positive ends controlling power supply single-phase rectification bridge; First DC supply VDD1 exports from three terminal regulator U5 output VOUT.The rectification negative polarity end controlling power supply single-phase rectification bridge is publicly.Three terminal regulator U5 selects H7133.
Control power module and can also adopt other implementations.The control power supply single-phase rectification bridge of diode D01, diode D02, diode D03, diode D04 composition can replace with single-phase rectification bridge stack, and three terminal regulator U5 can adopt voltage-stabiliser tube voltage stabilizing circuit or DC/DC pressurizer.
Zero passage detection module is the circuit with following functions: be provided with zero passage voltage input, zero-crossing pulse output; Zero passage voltage input is connected to the first ac terminal; The zero-crossing pulse that zero-crossing pulse output exports is positive pulse; Zero-crossing pulse is corresponding with the second AC power positive half wave; The width of zero-crossing pulse is less than the second AC power positive half wave width; Second AC power positive half wave is the second AC power half-wave of the first ac terminal current potential higher than the second ac terminal current potential.
In Fig. 5 embodiment, zero passage detection module is detection shaping circuit, is made up of diode D1, resistance R9, voltage-stabiliser tube DW1.The two ends of resistance R9 are connected to diode D1 negative electrode and voltage-stabiliser tube DW1 negative electrode respectively, and diode D1 anode is connected to the first ac terminal L1, and voltage-stabiliser tube DW1 anode is connected to publicly.Voltage-stabiliser tube DW1 negative electrode is the zero-crossing pulse output exporting zero-crossing pulse.
Speed preset module is provided with speed preset signal output part and direction Setting signal output, speed preset signal output part output speed Setting signal, direction Setting signal output outbound course Setting signal.Described speed control signal has speed 1- n, altogether nindividual speed class; nfor being more than or equal to the integer of 2.
In Fig. 5 embodiment, speed preset module adopts potentiometer RW1 to carry out dividing potential drop to the first DC supply VDD1, and the speed preset signal obtained is speed preset voltage.The speed preset average voltage that potentiometer RW1 exports is divided into nindividual interval, the speed class of minimum voltage overall travel speed Setting signal is speed 1, and the speed class of ceiling voltage overall travel speed Setting signal is speed n; Speed preset voltage nindividual interval respectively with the speed 1-of speed class ncorresponding.Speed preset module also can adopt other devices such as rotary encoder, toggle switch, pulse potential device to realize.In Fig. 5 embodiment, speed preset module adopts direction switch SWD outbound course Setting signal, and direction switch SWD necessarily connects publicly, and one end is direction Setting signal output in addition.
Single chip control module includes 1 road speed preset signal input part, 1 direction, tunnel Setting signal input, 1 road signal acquisition input, 2 tunnel level signal outputs.1 road speed preset signal input part is connected to the speed preset signal output part of speed preset module; 1 direction, tunnel Setting signal input is connected to the direction Setting signal output of speed preset module; 1 road signal acquisition input is connected to the zero-crossing pulse output of zero passage detection module, input zero-crossing pulse; 2 tunnel level signal outputs, for exchanging control output end KJ, rectify control output KZ, are connected to the interchange control input end KJ of trigger control module, rectify control input KZ respectively.
In Fig. 5 embodiment, single chip control module is made up of single-chip microprocessor MCU 1, crystal oscillator XT1, and the model of single-chip microprocessor MCU 1 is MSP430G2553.The analog voltage input A0(P1.0 of single-chip microprocessor MCU 1) be speed preset signal input part, the output voltage of potentiometer RW1 is connected to the analog voltage input A0(P1.0 of single-chip microprocessor MCU 1).If adopt other devices to send the speed preset signal of switching value, digital quantity form, can input from the I/O mouth of single-chip microprocessor MCU 1.Single-chip microprocessor MCU 1 carries out A/D conversion by the speed preset voltage inputted analog voltage input A0, or reads the input signal of I/O mouth, obtains the speed class of speed preset signal.The P2.0 of single-chip microprocessor MCU 1 is signal acquisition input, is connected to the zero-crossing pulse output of zero passage detection module.The P1.3 of single-chip microprocessor MCU 1 is direction Setting signal input, is connected to the direction Setting signal output of speed preset module.P1.1, P1.2 of single-chip microprocessor MCU 1 are level signal outputs, and wherein P1.1 is interchange control output end KJ, P1.2 is rectify control output KZ; Exchange interchange control input end KJ, rectify control input KZ that control output end KJ, rectify control output KZ are connected to trigger control module respectively.
First controlled rectification lead-out terminal AC1, the second controlled rectification lead-out terminal AC2 of Commutation control unit export controlled rectification voltage, Commutation control unit carrys out transmission speed control signal by controlling controlled rectification voltage, and speed control signal is by direction guide wave and speed data wave component.The effective value of controlled rectification voltage is identical with the voltage effective value of the second AC power.
Described direction guide wave has two kinds; When control step motor rotates forward, direction guide wave is made up of the waves AC of 2 power frequency period rectified wave and 1 power frequency period, and rectified wave is front, and waves AC is rear; During control step motor reversal, direction guide wave is made up of the waves AC of 1 power frequency period rectified wave and 2 power frequency periods, and rectified wave is front, and waves AC is rear.
Described speed data ripple is xthe controlled rectification voltage wave of individual power frequency period, xfor being more than or equal to the integer of 2.Described speed control signal has speed 1- n, altogether nindividual speed class; The speed 1-of speed control signal speed class nwith the speed 1-of speed preset signal speed grade nbetween one_to_one corresponding.The stepping motor state of speed 1 correspondence of speed class is on-position. nwith xbetween pass be: nbe less than or equal to 2 x .
xin the controlled rectification voltage wave of individual power frequency period, 1 corresponding 1 bit rate code of power frequency period, xthe controlled rectification voltage wave of individual power frequency period is corresponding xbit rate code; In each power frequency period, when its controlled rectification voltage wave is waves AC, 1 corresponding bit rate code is 0; In each power frequency period, when its controlled rectification voltage wave is rectified wave, 1 corresponding bit rate code is 1.Or xin the controlled rectification voltage wave of individual power frequency period, 1 corresponding 1 bit rate code of power frequency period; In each power frequency period, when its controlled rectification voltage wave is waves AC, 1 corresponding bit rate code is 1; In each power frequency period, when its controlled rectification voltage wave is rectified wave, 1 corresponding bit rate code is 0.Described speed code is binary code.
During Commutation control unit transmission speed control signal, waveform embodiment as shown in Figure 6, Figure 7, in embodiment xequal 6, speed control signal has speed 1-64, totally 64 speed class.In the controlled rectification voltage wave of 6 power frequency periods of embodiment, 1 corresponding 1 bit rate code of power frequency period; In each power frequency period, when its controlled rectification voltage wave is waves AC, corresponding speed code is 0; In each power frequency period, when its controlled rectification voltage wave is rectified wave, corresponding speed code is 1.The scope of 6 bit rate codes is 00000-11111, and the speed class scope of representative is speed 1-64.
What send shown in Fig. 6 is the speed control signal that control step motor rotates forward, speed class is speed 23.Fig. 6 (a) is the waveform of controlled rectification voltage, and T1 interval is wherein direction guide wave, is made up of the rectified wave of 2 power frequency periods and the waves AC of 1 power frequency period.T2 interval is speed data ripple, the i.e. controlled rectification voltage wave of 6 power frequency periods, 6 power frequency periods are followed successively by waves AC, rectified wave, waves AC, rectified wave, rectified wave, waves AC, and corresponding 6 bit rate codes are 010110, and the speed class of speed control signal is speed 23.
The speed control signal that what send shown in Fig. 7 is control step motor reversal, speed class is speed 29.Fig. 7 (a) is the waveform of controlled rectification voltage, and T11 interval is wherein direction guide wave, is made up of the rectified wave of 1 power frequency period and the waves AC of 2 power frequency periods.T12 interval is speed data ripple, the i.e. controlled rectification voltage wave of 6 power frequency periods, 6 power frequency periods are followed successively by waves AC, rectified wave, rectified wave, rectified wave, waves AC, waves AC, and corresponding 6 bit rate codes are 011100, and the speed class of speed control signal is speed 29.
The step that single chip control module sends a speed control signal is as follows:
Step 1, waits for, until enter step 2 when receiving the rising edge of zero-crossing pulse;
Step 2, stops exchanging output, starts rectification and exports; Wait for, until enter step 3 when receiving the rising edge of zero-crossing pulse;
Step 3, sends the direction wave of 1 power frequency period; Wait for, until enter step 4 when receiving the rising edge of zero-crossing pulse;
Step 4, stops rectification exporting, and starts to exchange to export; Wait for, until enter step 5 when receiving the rising edge of zero-crossing pulse;
Step 5, sends the controlled rectification voltage wave of 1 power frequency period; Wait for, until enter step 6 when receiving the rising edge of zero-crossing pulse;
Step 6, sends xforward step 7 to during the controlled rectification voltage wave of individual power frequency period, otherwise return step 5;
Step 7, stops rectification exporting, and starts to exchange to export.
Commutation control unit is not when normal maintenance sends speed control signal state, single chip control module controls to exchange control output end KJ and exports useful signal, rectify control output KZ exports invalid signals, the input LEDs ON of zero cross fired optocoupler U1 and U2, the input light-emitting diode cut-off of zero cross fired optocoupler U3 and U4, bidirectional thyristor V1, bidirectional thyristor V2 conducting, bidirectional thyristor V3, bidirectional thyristor V4 ends, first controlled rectification lead-out terminal AC1, the controlled rectification voltage that second controlled rectification lead-out terminal AC2 exports is alternating voltage.In the embodiment shown in fig. 4, the interchange control output end KJ of single chip control module output, the signal of rectify control output KZ are Low level effective.
The zero-crossing pulse that the module of zero passage detection shown in Fig. 5 exports is corresponding with the positive half wave of the second AC power, and the width of zero-crossing pulse is less than the second AC power positive half wave width.Described second AC power positive half wave is the second AC power half-wave of the first ac terminal current potential higher than the second ac terminal current potential.
Single chip control module detects and half-wave in Fig. 61, or after the zero-crossing pulse rising edge that in Fig. 7, half-wave 2 is corresponding, enters step 2.Described stopping exchanges and exports, and refer to that controlling to exchange control output end KJ exports invalid signals, from the next zero crossing of the second AC power, bidirectional thyristor V1, bidirectional thyristor V2 end; Described beginning rectification exports, refer to that controlling rectify control output KZ exports useful signal, from the next zero crossing of the second AC power, bidirectional thyristor V3, bidirectional thyristor V4 conducting, the controlled rectification voltage that the first controlled rectification lead-out terminal AC1, the second controlled rectification lead-out terminal AC2 export is commutating voltage.
Described stopping rectification exporting, and refer to that controlling rectify control output KZ exports invalid signals, from the next zero crossing of the second AC power, bidirectional thyristor V3, bidirectional thyristor V4 end; Described beginning exchanges output, refer to that controlling to exchange control output end KJ exports useful signal, from the next zero crossing of the second AC power, bidirectional thyristor V1, bidirectional thyristor V2 conducting, the controlled rectification voltage that the first controlled rectification lead-out terminal AC1, the second controlled rectification lead-out terminal AC2 export is alternating voltage.
The described direction wave sending 1 power frequency period, its method is, when control step motor rotates forward, stops exchanging output, starts rectification and export; During control step motor reversal, stop rectification exporting, start to exchange output.
The described controlled rectification voltage wave sending 1 power frequency period, its method is, judges that the controlled rectification voltage wave needing this power frequency period sent is waves AC or rectified wave, if waves AC, then stops rectification exporting, and starts to exchange to export; If rectified wave, then stop exchanging exporting, start rectification and export.
Each single power frequency period in described controlled rectification voltage wave or direction wave is waves AC, or rectified wave; The waves AC of single power frequency period is by 1 single phase alternating current power supply positive half wave and 1 negative half wave component of single phase alternating current power supply, and positive half wave is front, and negative half-wave is rear; The rectified wave of single power frequency period is made up of 2 rectified half-waves, and first rectified half-waves is corresponding with the second AC power positive half wave, and it is corresponding that second rectified half-waves and the second AC power bear half-wave.The time of described power frequency period is 20ms.Described single power frequency period is 1 power frequency period.
The method of Commutation control unit transmission speed control signal as shown in Figure 8, comprising:
Steps A, reads Setting signal;
Step B, sends a speed control signal;
Step C, judges whether speed changes, and speed changes, and returns step B; Speed does not change, and returns step C.
Judge that the method whether speed changes is, the speed class of speed preset signal changes, or direction Setting signal changes, then speed changes.
The structure of speed regulation unit as shown in Figure 9, is made up of adjustment power module, waveform sampling module, single-chip microcomputer adjustment module, driving stepper motor module.
The adjustment portion of speed regulation unit comprises adjustment power module, waveform sampling module, single-chip microcomputer adjustment module, and embodiment as shown in Figure 10.
Power module is regulated to provide the second DC supply VDD2 for speed regulation unit.In embodiment illustrated in fig. 10, power module is regulated to be made up of diode D05, diode D06, diode D07, diode D08, electric capacity C2, three terminal regulator U6.Diode D05, diode D06, diode D07, diode D08 composition regulates power supply single-phase rectification bridge; Electric capacity C2 is connected in parallel on the DC voltage output end regulating power supply single-phase rectification bridge, strobes; Three terminal regulator U6 input VIN is connected to the rectification positive ends regulating power supply single-phase rectification bridge; Second DC supply VDD2 exports from three terminal regulator U6 output VOUT.The rectification negative polarity end of power supply single-phase rectification bridge is regulated to be with reference to ground.Three terminal regulator U6 selects H7133.
Regulate power module can also adopt other implementations.The adjustment power supply single-phase rectification bridge of diode D05, diode D06, diode D07, diode D08 composition can replace with single-phase rectification bridge stack, and three terminal regulator U6 can adopt voltage-stabiliser tube voltage stabilizing circuit or DC/DC pressurizer.
With voltage-stabiliser tube voltage stabilizing circuit or DC/DC pressurizer.
Waveform sampling module is the circuit with following functions: be provided with sampling Waveform Input end and sampling pulse output; Sampling Waveform Input end is connected to the second controlled rectification input terminal; Waveform sampling module is detected higher than the waveform of the first controlled rectification input terminal current potential by the second controlled rectification input terminal current potential and amplitude limit obtains sampling pulse; The positive pulse of sampling pulse is corresponding higher than the waveform of the first controlled rectification input terminal current potential with the second controlled rectification input terminal current potential.
In Figure 10 embodiment, waveform sampling module is detection shaping circuit, is made up of diode D2, resistance R12, voltage-stabiliser tube DW2.The two ends of resistance R12 are connected to diode D2 negative electrode and voltage-stabiliser tube DW2 negative electrode respectively; Diode D2 anode is sampling Waveform Input end, is connected to the second controlled rectification input terminal AC2; Voltage-stabiliser tube DW2 anode is connected to reference to ground; Voltage-stabiliser tube DW2 negative electrode is sampling pulse output.
Single-chip microcomputer adjustment module has seizure input and speed-regulating pulse output CP, direction controlling output DIR, catches the sampling pulse output that input is connected to waveform sampling module.The output type of direction controlling output DIR is switching value; The output type of speed-regulating pulse output CP is pulse signal, the frequency of pulse signal and the proportional relation of the speed of stepping motor.
In Figure 10 embodiment, single-chip microcomputer adjustment module is made up of single-chip microprocessor MCU 2, crystal oscillator XT2, and the model of single-chip microprocessor MCU 2 is MSP430G2553, and the seizure input of single-chip microprocessor MCU 2 is P2.0, and speed-regulating pulse output CP is P1.2; Direction controlling output DIR is P1.4, P1.4 output level control signal.
Driving stepper motor module is used for Driving Stepping Motor, is provided with the stepper motor driver of speed-regulating pulse input, stepper motor driver chip can be applicable to the present invention.Figure 11 shows that the embodiment circuit adopting stepper motor driver.
In embodiment illustrated in fig. 11, driving stepper motor module is made up of stepper motor driver U31 and diode D31-D34, electric capacity C31, the universal driver that stepper motor driver U31 is is core with two-phase hybrid stepping motor driving chip TB6600.
In Figure 11 embodiment, diode D31-D34 forms single phase bridge type rectifier circu and carries out rectification to the controlled rectification voltage that the first controlled rectification input terminal AC1, the second controlled rectification input terminal AC2 input, after electric capacity C61 filtering, obtain motor drive power supply V+ again, power to stepper motor driver U31.The negative polarity end of single phase bridge type rectifier circu is connected to reference to ground.
In Figure 11 embodiment, the two-phase phase terminal A+ of stepping motor M31, A-, B+, B-be connected to the respective drive output terminals A of stepper motor driver U31+, A-, B+, B-; The direction controlling output DIR of single-chip microcomputer adjustment module, speed-regulating pulse output CP are connected to direction controlling input negative terminal DIR-, the speed-regulating pulse input negative terminal PUL-of stepper motor driver U31 respectively; Direction controlling input anode DIR+, the speed-regulating pulse input anode PUL+ of stepper motor driver U31 are connected to the second DC supply VDD2.
In Figure 11 embodiment, the power positive end VCC of stepper motor driver U31 is connected to motor drive power supply V+, and power supply negative terminal GND is connected to reference to ground.
Speed regulation unit inbound pacing control signal also regulates the speed of stepping motor, and its method as shown in figure 12, comprising:
Step one, Electric Machine Control initialization;
Step 2, has judged whether speed control signal; There is no speed control signal, return step 2; There is speed control signal, forward step 3 to;
Step 3, inbound pacing control signal;
Step 4, regulates stepper motor speed; Return step 2.
The method of adjustment stepper motor speed is, in the speed control signal that single-chip microcomputer adjustment module receives, when direction does not change, according to the speed of the speed class control step motor of speed code correspondence; In the speed control signal that single-chip microcomputer adjustment module receives, when direction changes, the stall of first control step decelerating through motor, then the speed of speed class control step motor according to speed code correspondence.
When regulating the speed of stepping motor, when the speed class that the speed control signal that single-chip microcomputer adjustment module receives is corresponding is grade 1, control step motor stalling.
Judged whether speed control signal, method is judge whether the controlled rectification voltage inputted from the first controlled rectification input terminal AC1, the second controlled rectification input terminal AC2 has direction guide wave.
Inbound pacing control signal, method receives xthe controlled rectification voltage wave of individual power frequency period, will xthe controlled rectification voltage wave of individual power frequency period is converted to xbit rate code.
The function of waveform sampling module carries out detection shaping to controlled rectification voltage.In Figure 10 embodiment, waveform sampling module is detected lower than the waveform of the second controlled rectification input terminal AC2 by the first controlled rectification input terminal AC1 current potential and amplitude limit obtains sampling pulse, exports the seizure input of single-chip microcomputer adjustment module to; The positive pulse of sampling pulse is corresponding lower than the half-wave of the second controlled rectification input terminal current potential with the first controlled rectification input terminal current potential, and sampling pulse positive pulse width is less than this half band-width.Control step motor rotate forward, speed class be the sampling pulse example of speed 23 as shown in Figure 6 (b), control step motor reversal, speed class be the sampling pulse example of speed 29 as shown in Figure 7 (b) shows.When controlled rectification voltage is alternating voltage, sampling pulse be duty ratio be less than 50%, with the square wave of the second AC power same frequency; When controlled rectification voltage is commutating voltage, sampling pulse is low level.
In embodiment illustrated in fig. 6, direction guide wave is made up of the rectified wave of 2 power frequency periods and the waves AC of 1 power frequency period, the square wave of to be the cycle the be power frequency period of the sampling pulse before the guide wave of direction.The rectified wave of 2 power frequency periods should make to occur in sampling pulse that width is the low level in 40ms, i.e. 2 power frequency period intervals, but in fact direction guide wave makes to occur in sampling pulse that width is the low level close to 50ms, namely 2.5 power frequency period interval, the interval T3 of low level as shown in Figure 6; The low level in 0.5 the power frequency period interval had more is produced by the positive half wave of 1 power frequency period waves AC after immediately; The negative half-wave of the waves AC of direction guide wave 1 power frequency period makes to occur in sampling pulse that width is the high level in 0.5 power frequency period interval, the interval T4 of high level as shown in Figure 6.
In embodiment illustrated in fig. 7, direction guide wave is made up of the rectified wave of 1 power frequency period and the waves AC of 2 power frequency periods, the square wave of to be the cycle the be power frequency period of the sampling pulse before the guide wave of direction.The rectified wave of 1 power frequency period should make to occur in sampling pulse that width is the low level in 20ms, i.e. 1 power frequency period interval, but in fact direction guide wave makes to occur in sampling pulse that width is the low level close to 20ms, namely 1.5 power frequency period interval, the interval T13 of low level as shown in Figure 7; The low level in 0.5 the power frequency period interval had more is produced by the positive half wave of 1 power frequency period waves AC after immediately; The negative half-wave of the waves AC of direction guide wave 2 power frequency periods makes to occur in sampling pulse that width is 1.5 power frequency period intervals, the pulse that high level, low level, high level are alternate, interval T14 as shown in Figure 7.
Judge whether controlled rectification voltage has direction guide wave, method is, judges to exceed after power frequency period square wave in sampling pulse the interval power frequency period number of low level of power frequency period width; If have in the sampling pulse after power frequency period square wave power frequency period number be 2 low level interval, then have the direction guide wave that control step motor rotates forward in controlled rectification voltage; If have in the sampling pulse after power frequency period square wave power frequency period number be 1 low level interval, then have the direction guide wave of control step motor reversal in controlled rectification voltage; If do not have in sampling pulse power frequency period number be 1 or 2 low level interval, then there is no direction guide wave in controlled rectification voltage.
The method judging to exceed after power frequency period square wave in sampling pulse the interval power frequency period number of low level of power frequency period width is, width is measured to the low level pulse exceeding power frequency period width after power frequency period square wave in sampling pulse, if measure the low level pulse width exceeding power frequency period width obtained is w, then the power frequency period number in this low level interval is INT( w/20); The function of INT function is that fractions omitted part rounds.
Speed data ripple xin the controlled rectification voltage wave of individual power frequency period, 1 corresponding 1 bit rate code of power frequency period, the voltage wave of each power frequency period can be waves AC, also can be rectified wave.When the voltage wave of 1 power frequency period is rectified wave, the sampling pulse corresponding with it is the low level in 1 power frequency period interval; When the voltage wave of 1 power frequency period is waves AC, the sampling pulse corresponding with it is the square wave that 1 duty ratio is less than 50%.In embodiment illustrated in fig. 6, speed data ripple is the controlled rectification voltage wave of continuous 6 power frequency periods, be followed successively by waves AC, rectified wave, waves AC, rectified wave, rectified wave, waves AC, corresponding sampling pulse interval T5, interval T6, interval T7, interval T8, interval T9, interval T10 are followed successively by square wave, low level, square wave, low level, low level, square wave, 6 bit rate codes are 010110, and speed class is speed 23.In embodiment illustrated in fig. 7, continuous 6 power frequency periods of speed data ripple are followed successively by waves AC, rectified wave, rectified wave, rectified wave, waves AC, waves AC, corresponding sampling pulse interval T15, interval T16, interval T17, interval T18, interval T19, interval T20 are followed successively by square wave, low level, low level, low level, square wave, square wave, 6 bit rate codes are 011100, and speed class is speed 29.
Will xthe controlled rectification voltage wave of individual power frequency period is converted to xthe method of bit rate code is, after the guide wave of direction xin individual power frequency period interval, when the sampling pulse in 1 power frequency period interval is low level, this bit rate code is 1 accordingly, when the sampling pulse in 1 power frequency period interval be 1 duty ratio be less than the square wave of 50% time, this bit rate code is 0 accordingly.Or, after the guide wave of direction xin individual power frequency period interval, when the sampling pulse in 1 power frequency period interval is low level, this bit rate code is 0 accordingly, when the sampling pulse in 1 power frequency period interval be 1 duty ratio be less than the square wave of 50% time, this bit rate code is 1 accordingly.
Speed code is converted to that speed class can use calculating, the method such as to table look-up.In embodiment, the scope of 6 bit rate codes is 000000-111111, and the speed class scope of representative is speed 1-64; When speed code is 000000, speed class is speed 1; When speed code is 000001, speed class is speed 2; When speed code is 000010, speed class is speed 3; By that analogy, when speed code is 111111, speed class is speed 64.
Stepping motor do not need controlling party to time, speed preset module is without the need to direction Setting signal output, single chip control module is without the need to direction Setting signal input, single-chip microcomputer adjustment module is without the need to direction controlling output, and the direction controlling input of driving stepper motor module is fixing accesses high level or low level.Now, single-chip microcomputer adjustment module by the direction guide wave be made up of 1 power frequency period rectified wave and 2 power frequency period waves ACs that receives according to receiving the direction guide wave process be made up of 2 power frequency period rectified wave and 1 power frequency period waves AC.
Controlled rectification voltage is directly powered to the adjustment power module of speed regulation unit, driving stepper motor module and waveform sampling module, first adjustment power module wherein, driving stepper motor module carry out rectification to controlled rectification voltage, again after capacitor filtering, provide power supply to interlock circuit; When controlled rectification voltage is zero, the source current of adjustment power module, driving stepper motor module is also zero; Waveform sampling module is non-linear resistive load, and when controlled rectification voltage is zero, the source current of waveform sampling module is zero.Therefore, when controlled rectification voltage is zero, it is zero to the source current that speed regulation unit provides.So, Commutation control unit carries out stopping at the zero crossing of the second AC power to exchange output, starts rectification output, or stop rectification export, start exchange export switching time, can the successful change of current between bidirectional thyristor V1, bidirectional thyristor V2 and bidirectional thyristor V3, bidirectional thyristor V4, unlikelyly cause power supply short circuit.
The present invention has following features:
1. power line far distance controlled stepper motor speed is adopted, without the need to remote controller, without the need to control line;
2. stepper motor speed can be divided into multiple grade as required;
3. adopt rectified wave transfer rate control signal, its effective value is identical with waves AC, the instability of power supply when stepper motor speed can not be caused to regulate.

Claims (10)

1. a method for the remote speed governing of stepping motor, is characterized in that:
The device be made up of Commutation control unit and speed regulation unit realizes;
Described Commutation control unit is provided with phase line input terminal, zero line input terminal, the first controlled rectification lead-out terminal, the second controlled rectification lead-out terminal; Described phase line input terminal, zero line input terminal input single-phase 220V AC power; Described first controlled rectification lead-out terminal, the second controlled rectification lead-out terminal export controlled rectification voltage;
Described speed regulation unit is provided with the first controlled rectification input terminal, the second controlled rectification input terminal, and described first controlled rectification input terminal, the second controlled rectification input terminal are connected to the first controlled rectification lead-out terminal, the second controlled rectification lead-out terminal of Commutation control unit respectively;
Described Commutation control unit is made up of transformer, control power module, controllable rectifier module, zero passage detection module, single chip control module, trigger control module, speed preset module;
Two input terminals of described transformer are respectively phase line input terminal, zero line input terminal, and two lead-out terminals are respectively the first ac terminal, the second ac terminal; Described first ac terminal, the second ac terminal export the second AC power;
Described control power module, by controlling power supply single-phase rectification bridge and the first filter regulator circuit forms, exports the first DC supply; Two ac input ends of described control power supply single-phase rectification bridge are connected to the first ac terminal, the second ac terminal respectively; The rectification negative polarity end of described control power supply single-phase rectification bridge is publicly;
Described controllable rectifier module is made up of rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2, bidirectional thyristor V3, bidirectional thyristor V4; 2 ac input ends of described rectifier bridge UR1 are connected to the first ac terminal and the second ac terminal respectively, and rectification output plus terminal is connected to the second plate of bidirectional thyristor V3, and rectification exports the second plate that negative terminal is connected to bidirectional thyristor V4; The first controlled rectification lead-out terminal is connected to after the first anode of bidirectional thyristor V1 is in parallel with the first anode of bidirectional thyristor V3; The second plate of bidirectional thyristor V1 is connected to the first ac terminal; The second controlled rectification lead-out terminal is connected to after the first anode of bidirectional thyristor V2 is in parallel with the first anode of bidirectional thyristor V4; The second plate of bidirectional thyristor V2 is connected to the second ac terminal;
Described trigger control module is provided with and exchanges control input end, rectify control input; When the AC controling signal of described interchange control input end input is effective, triggering and conducting when trigger control module control bidirectional thyristor V1 and bidirectional thyristor V2 zero passage; When the AC controling signal of described interchange control input end input is invalid, trigger control module is ended after controlling bidirectional thyristor V1 and bidirectional thyristor V2 zero passage; When the rectify control signal of described rectify control input input is effective, triggering and conducting when trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passage; During the rectify control invalidating signal that described rectify control input inputs, trigger control module is ended after controlling bidirectional thyristor V3 and bidirectional thyristor V4 zero passage;
Described zero passage detection module is provided with zero passage voltage input, zero-crossing pulse output; Described zero passage voltage input is connected to the first ac terminal; The zero-crossing pulse that described zero-crossing pulse output exports is positive pulse; Described zero-crossing pulse is corresponding with the second AC power positive half wave; The width of described zero-crossing pulse is less than the second AC power positive half wave width; Described second AC power positive half wave is the second AC power half-wave of the first ac terminal current potential higher than the second ac terminal current potential;
Described speed preset module is provided with speed preset signal output part and direction Setting signal output;
Described single chip control module includes speed preset signal input part, direction Setting signal input, signal acquisition input and two-way level signal output; Described speed preset signal input part is connected to the speed preset signal output part of speed preset module; Described direction Setting signal input is connected to the direction Setting signal output of speed preset module; Described signal acquisition input is connected to the zero-crossing pulse output of zero passage detection module; Described two-way level signal output is respectively and exchanges control output end, rectify control output; Described interchange control output end, rectify control output are connected to interchange control input end, the rectify control input of trigger control module respectively;
Described speed regulation unit forms by regulating power module, waveform sampling module, single-chip microcomputer adjustment module, driving stepper motor module;
Described adjustment power module inputs controlled rectification voltage, exports the second DC supply, is made up of adjustment power supply single-phase rectification bridge and the second filter regulator circuit; The rectification negative polarity end of described adjustment power supply single-phase rectification bridge is with reference to ground;
Described waveform sampling module is provided with sampling Waveform Input end and sampling pulse output; Described sampling Waveform Input end is connected to the second controlled rectification input terminal; Described waveform sampling module is detected higher than the waveform of the first controlled rectification input terminal current potential by the second controlled rectification input terminal current potential and amplitude limit obtains sampling pulse; The positive pulse of described sampling pulse is corresponding higher than the waveform of the first controlled rectification input terminal current potential with the second controlled rectification input terminal current potential;
Described single-chip microcomputer adjustment module has seizure input and speed-regulating pulse output, direction controlling output; The seizure input of single-chip microcomputer adjustment module is connected to the sampling pulse output of waveform sampling module;
Described driving stepper motor module is used for Driving Stepping Motor, is provided with speed-regulating pulse input, direction controlling input; Described speed-regulating pulse input is connected to the speed-regulating pulse output of single-chip microcomputer adjustment module, and direction controlling input is connected to the direction controlling output of single-chip microcomputer adjustment module;
Described Commutation control unit carrys out transmission speed control signal by controlling controlled rectification voltage, and speed control signal is by direction guide wave and speed data wave component;
Described direction guide wave has two kinds; When control step motor rotates forward, direction guide wave is made up of the waves AC of 2 power frequency period rectified wave and 1 power frequency period, and rectified wave is front, and waves AC is rear; During control step motor reversal, direction guide wave is made up of the waves AC of 1 power frequency period rectified wave and 2 power frequency periods, and rectified wave is front, and waves AC is rear;
Described speed data ripple is xthe controlled rectification voltage wave of individual power frequency period, xfor being more than or equal to the integer of 2;
Described speed control signal has speed 1- n, altogether nindividual speed class; The speed class of described speed preset signal has speed 1- n; nfor being more than or equal to the integer of 2;
Described speed data ripple is xthe controlled rectification voltage wave of individual power frequency period, xfor being more than or equal to the integer of 2;
Described xin the controlled rectification voltage wave of individual power frequency period, 1 corresponding 1 bit rate code of power frequency period; xthe controlled rectification voltage wave of individual power frequency period is corresponding xbit rate code; Described speed code is binary code;
Described nwith xbetween pass be: nbe less than or equal to 2 x ;
The method that described single chip control module sends a speed control signal is,
Step 1, waits for, until enter step 2 when receiving the rising edge of zero-crossing pulse;
Step 2, stops exchanging output, starts rectification and exports; Wait for, until enter step 3 when receiving the rising edge of zero-crossing pulse;
Step 3, sends the direction wave of 1 power frequency period; Wait for, until enter step 4 when receiving the rising edge of zero-crossing pulse;
Step 4, stops rectification exporting, and starts to exchange to export; Wait for, until enter step 5 when receiving the rising edge of zero-crossing pulse;
Step 5, sends the controlled rectification voltage wave of 1 power frequency period; Wait for, until enter step 6 when receiving the rising edge of zero-crossing pulse;
Step 6, sends xforward step 7 to during the controlled rectification voltage wave of individual power frequency period, otherwise return step 5;
Step 7, stops rectification exporting, and starts to exchange to export;
The method of described Commutation control unit transmission speed control signal is,
Steps A, reads Setting signal;
Step B, sends a speed control signal;
Step C, judges whether speed changes, and speed changes, and returns step B; Speed does not change, and returns step C;
Described speed regulation unit inbound pacing control signal also regulates the method for stepper motor speed to be,
Step one, Electric Machine Control initialization;
Step 2, has judged whether speed control signal; There is no speed control signal, return step 2; There is speed control signal, forward step 3 to;
Step 3, inbound pacing control signal;
Step 4, regulates stepper motor speed; Return step 2.
2. the method for the remote speed governing of stepping motor according to claim 1, is characterized in that: described in judged whether speed control signal, method is for judge whether there is direction guide wave in controlled rectification voltage.
3. the method for the remote speed governing of stepping motor according to claim 2, it is characterized in that: describedly judge whether to have in controlled rectification voltage the method for direction guide wave to be judge to exceed after power frequency period square wave in sampling pulse the interval power frequency period number of low level of power frequency period width; Have in sampling pulse after power frequency period square wave power frequency period number be 2 low level interval, then have the direction guide wave that control step motor rotates forward in controlled rectification voltage; Have in sampling pulse after power frequency period square wave power frequency period number be 1 low level interval, then have the direction guide wave of control step motor reversal in controlled rectification voltage; Do not have in sampling pulse after power frequency period square wave power frequency period number be 1 or 2 low level interval, then there is no direction guide wave in controlled rectification voltage.
4. the method for the remote speed governing of stepping motor according to claim 3, it is characterized in that: the method exceeding the interval power frequency period number of low level of power frequency period width in described judgement sampling pulse after power frequency period square wave is, width is measured to the low level pulse exceeding power frequency period width after power frequency period square wave in sampling pulse, if measure the low level pulse width exceeding power frequency period width obtained is w, then the power frequency period number in this low level interval is INT( w/20); The function of INT function is that fractions omitted part rounds.
5. the method for the remote speed governing of stepping motor according to claim 1, is characterized in that: the method for described inbound pacing control signal is, receives xthe controlled rectification voltage wave of individual power frequency period is converted to xbit rate code, is converted to the speed class of speed control signal by speed code.
6. the method for the remote speed governing of stepping motor according to claim 5, is characterized in that: described reception xthe controlled rectification voltage wave of individual power frequency period is converted to xbit rate code, its method is:
After the guide wave of direction xin individual power frequency period interval, when the sampling pulse in 1 power frequency period interval is low level, this bit rate code is 1 accordingly, when the sampling pulse in 1 power frequency period interval be 1 duty ratio be less than the square wave of 50% time, this bit rate code is 0 accordingly;
Its method or:
After the guide wave of direction xin individual power frequency period interval, when the sampling pulse in 1 power frequency period interval is low level, this bit rate code is 0 accordingly, when the sampling pulse in 1 power frequency period interval be 1 duty ratio be less than the square wave of 50% time, this bit rate code is 1 accordingly.
7. the method for the remote speed governing of stepping motor according to claim 1, is characterized in that: described stopping exchanges and exports, and refers to that controlling to exchange control output end exports invalid signals; Described beginning rectification exports, and refers to that controlling rectify control output exports useful signal; Described beginning exchanges output, refers to that controlling to exchange control output end exports useful signal; Described stopping rectification exporting, and refers to that controlling rectify control output exports invalid signals.
8. the method for the remote speed governing of stepping motor according to claim 1, it is characterized in that: the described method judging whether speed changes is, the speed class of speed preset signal changes, or direction Setting signal changes, then speed changes.
9. the method for the remote speed governing of stepping motor according to claim 1, it is characterized in that: the method for described adjustment stepper motor speed is, in the speed control signal that single-chip microcomputer adjustment module receives, when direction guide wave does not change, according to the speed of the speed class control step motor of speed code correspondence; In the speed control signal that single-chip microcomputer adjustment module receives, when direction guide wave changes, the stall of first control step decelerating through motor, then the speed of speed class control step motor according to speed code correspondence.
10. the method for the remote speed governing of stepping motor according to claim 1, is characterized in that: described power frequency period is 20ms.
CN201510386832.6A 2015-07-06 2015-07-06 A kind of method of the remote speed governing of stepper motor Active CN105099301B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710790927.3A CN107508513B (en) 2015-07-06 2015-07-06 Method for sending speed regulation signal of stepping motor by single-phase power line
CN201510386832.6A CN105099301B (en) 2015-07-06 2015-07-06 A kind of method of the remote speed governing of stepper motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510386832.6A CN105099301B (en) 2015-07-06 2015-07-06 A kind of method of the remote speed governing of stepper motor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201710790927.3A Division CN107508513B (en) 2015-07-06 2015-07-06 Method for sending speed regulation signal of stepping motor by single-phase power line

Publications (2)

Publication Number Publication Date
CN105099301A true CN105099301A (en) 2015-11-25
CN105099301B CN105099301B (en) 2017-10-20

Family

ID=54579051

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201710790927.3A Active CN107508513B (en) 2015-07-06 2015-07-06 Method for sending speed regulation signal of stepping motor by single-phase power line
CN201510386832.6A Active CN105099301B (en) 2015-07-06 2015-07-06 A kind of method of the remote speed governing of stepper motor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201710790927.3A Active CN107508513B (en) 2015-07-06 2015-07-06 Method for sending speed regulation signal of stepping motor by single-phase power line

Country Status (1)

Country Link
CN (2) CN107508513B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108964564A (en) * 2018-05-21 2018-12-07 武汉豪岩照明电子有限公司 Threephase asynchronous machine a-c transducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117674644B (en) * 2024-02-02 2024-04-19 深圳斯诺凡科技有限公司 Two-wire speed-regulating DC brushless motor and control circuit and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080094864A1 (en) * 2004-09-08 2008-04-24 Daikin Industries, Ltd. Polyphase Current Supplying Circuit and Driving Apparatus
US20080298094A1 (en) * 2007-06-01 2008-12-04 Cuadra Jason E Method and apparatus to control two regulated outputs of a flyback power supply
CN102820762A (en) * 2012-06-19 2012-12-12 江苏大学 Magnetic governor with remote automatic control of radial air gap
CN202855059U (en) * 2012-09-12 2013-04-03 崔超 Stepping motor wireless Ad hoc network control system based on Zigbee
CN103281849A (en) * 2013-06-26 2013-09-04 湖南工业大学 Light-adjusting device and method of LED illuminating lamp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276392A (en) * 1993-01-06 1994-01-04 Mechanical Ingenuity Corp. Single phase AC motor speed control system
JPH11122990A (en) * 1997-10-17 1999-04-30 Canon Inc Motor control system
CN201018447Y (en) * 2007-02-16 2008-02-06 吴德峰 Inverter of generator
CN101588673B (en) * 2008-05-23 2013-03-13 上海阿卡得电子有限公司 Method and device for controlling dimming of online integral-type gas discharge lamp
US8362736B2 (en) * 2008-09-08 2013-01-29 Nidec Motor Corporation Blower motor for HVAC systems
JP4678699B2 (en) * 2009-09-29 2011-04-27 シャープ株式会社 Motor control device
CN103812402B (en) * 2012-11-14 2016-08-03 中国科学院沈阳计算技术研究所有限公司 A kind of stepless speed-regulating device for controlling aircraft industry direct current generator
CN203691303U (en) * 2014-01-22 2014-07-02 哈尔滨理工大学 Controller of brushless DC (direct current) motor with no position sensor for vacuum cleaner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080094864A1 (en) * 2004-09-08 2008-04-24 Daikin Industries, Ltd. Polyphase Current Supplying Circuit and Driving Apparatus
US20080298094A1 (en) * 2007-06-01 2008-12-04 Cuadra Jason E Method and apparatus to control two regulated outputs of a flyback power supply
CN102820762A (en) * 2012-06-19 2012-12-12 江苏大学 Magnetic governor with remote automatic control of radial air gap
CN202855059U (en) * 2012-09-12 2013-04-03 崔超 Stepping motor wireless Ad hoc network control system based on Zigbee
CN103281849A (en) * 2013-06-26 2013-09-04 湖南工业大学 Light-adjusting device and method of LED illuminating lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108964564A (en) * 2018-05-21 2018-12-07 武汉豪岩照明电子有限公司 Threephase asynchronous machine a-c transducer
CN108964564B (en) * 2018-05-21 2023-09-29 佳木斯电机股份有限公司 AC converter for three-phase asynchronous motor

Also Published As

Publication number Publication date
CN107508513A (en) 2017-12-22
CN105099301B (en) 2017-10-20
CN107508513B (en) 2020-03-06

Similar Documents

Publication Publication Date Title
CN105703689A (en) High-power brushless doubly-fed machine three-level bidirectional variable-frequency speed regulation system
CN104994638B (en) The device of the remote adjusting brightness of LED lamps of controlled rectification ripple
CN105099301A (en) Method for remote speed regulation of stepping motor
CN104968108B (en) Method of remotely adjusting the brightness of multiple LED lamps through controllable rectification waves
CN105007001A (en) Method for remote adjusting of speeds of multiple direct current brushless motors
CN104968107B (en) Ceiling fan lamp control method
CN204761341U (en) Device of many DC Brushless motor speed of remote regulating
CN105099287B (en) The remote arrangements for speed regulation of DC brushless motor
CN204761796U (en) Ceiling fan lamp control circuit
CN204761343U (en) Remote speed adjusting device of DC Brushless motor
CN104994640B (en) Ceiling fan lamp control circuit
CN104967366A (en) Apparatus of remotely adjusting the speed of multiple DC brushless motors
CN105048893B (en) Method for long-distance speed regulation of DC brushless motor
CN208241600U (en) A kind of doube bridge arm ac-dc-ac inverter circuit
CN104968111B (en) Method of remotely controlling the brightness of an LED lamp through controllable rectification waves
CN104994641B (en) The device of the multiple Lamp with ceiling fan of far distance controlled
CN205124040U (en) Device of controllable rectification ripples remote regulating LED lamp luminance
CN104968112B (en) A kind of controlled rectification remote LED lamp light-dimming method
CN204993953U (en) Device of a plurality of LED lamp of controllable rectification ripples remote regulating luminance
CN104994639B (en) Method for remotely adjusting brightness of LED lamp through controllable rectifying waves
CN104968110B (en) A kind of method of the multiple Lamp with ceiling fan of far distance controlled
CN204761794U (en) Remote LED lamp dimmer circuit of controllable rectification
CN104968114B (en) Long-distance LED lamp light modulation circuit through controllable rectification
CN104968113B (en) Apparatus of remotely adjusting the brightness of multiple LED lamps through controllable rectification waves
CN104968109B (en) A kind of method that LED brightness controlled rectification ripple is adjusted at a distance

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200415

Address after: 100176 Room 301, block a, building 19, yard 8, Liangshuihe 2nd Street, Beijing Economic Development Zone, Daxing District, Beijing

Patentee after: BEIJING MEILIAN TAIKE BIOTECHNOLOGY Co.,Ltd.

Address before: 412007 School of industry, research and production, Hunan University of Technology, 88 West Taishan Road, Zhuzhou, Hunan

Patentee before: HUNAN UNIVERSITY OF TECHNOLOGY