CN206712703U - A kind of fading unit suitable for electric operating mechanism - Google Patents
A kind of fading unit suitable for electric operating mechanism Download PDFInfo
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- CN206712703U CN206712703U CN201720275068.XU CN201720275068U CN206712703U CN 206712703 U CN206712703 U CN 206712703U CN 201720275068 U CN201720275068 U CN 201720275068U CN 206712703 U CN206712703 U CN 206712703U
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Abstract
The utility model provides a kind of fading unit suitable for electric operating mechanism, and energy unit, electric-motor drive unit and rotation speed measurement unit, the first IGBT driver elements, the 2nd IGBT driver elements are unloaded in the device detection control unit, voltage measurement signal modulate circuit, current measurement signal modulate circuit, energy storage；This method can detect the rotating speed of motor in real time, in motor operation course, detect the tachometer value of motor in real time, the rotating speed of motor is caused to change when load changes, the input voltage value of active quick regulation motor, changes power input to a machine with this, to match the load reaction of motor., can active quick regulation DC voltage value during motor work is not turned off.
Description
Technical field
The utility model belongs to field of power system control technical field, and in particular to one kind is applied to electric operating mechanism
Fading unit.
Background technology
Primary cut-out is one of equipment important in power system, plays a part of to control in operation of power networks and protects,
Its operating characteristics directly affects the operation stability and power supply reliability of power system.Core of the operating mechanism as breaker
Part, it is researched and developed, design always is the scientific research task paid close attention to, it passed by electromagnetic mechanism, spring mechanism, pneumatic mechanism,
The courses such as hydraulic mechanism.Due to the requirement of primary cut-out job specification itself so that operating mechanism must be within a few tens of milliseconds
Actuating process is completed, this proposes higher requirement to the kinematic system being made up of completely component of machine.
Electric operating mechanism meets the intelligentized developing direction of primary cut-out, this behaviour as the operating mechanism of a new generation
Motivation structure uses a kind of brand-new operation principle, is totally different from electromagnetism, spring and permanent magnet mechanism.It is directly driven using motor
Dynamic moving contact of breaker carries out breaking-closing operating, has higher controllability compared to traditional operating mechanism.Because height is broken
Load reaction is constantly changing during the divide-shut brake of road device, and countertorque also changes, it is necessary to motor constantly
Electric current change with the change of load reaction, it is therefore desirable to constantly change capacitance voltage to meet the change of load reaction
Change.Need, with changing problem is loaded, to have rung from quick regulation capacitance voltage in making process for capacitance voltage
It should load and the demand of capacitance voltage is studied for target, design with reference to hardware circuit auxiliary circuit, control method and control
The hardware configuration of system processed, by monitoring DC bus-bar voltage in real time, by energy conditioner, or supplement capacitive energy, or
Capacitive energy is consumed to meet the needs of load is to energy.
Utility model content
In view of the shortcomings of the prior art, the utility model proposes a kind of input power regulation suitable for electric operating mechanism
Device.
The technical solution of the utility model is：
A kind of fading unit suitable for electric operating mechanism, including：Detection control unit, voltage measurement letter
Number modulate circuit, current measurement signal modulate circuit, energy storage unload can unit, electric-motor drive unit and rotation speed measurement unit, first
IGBT driver elements, the 2nd IGBT driver elements；
The input connection three phase mains of energy unit is unloaded in the energy storage, and the first output end connection of energy unit is unloaded in the energy storage
The defeated of the second output end connection current measurement signal modulate circuit of energy unit is unloaded in the input of electric-motor drive unit, the energy storage
Enter end, the input of the 3rd output end connection voltage measurement signal modulate circuit of energy unit is unloaded in the energy storage, and the motor drives
The output end connection permanent-magnet brushless DC electric machine of moving cell, the input connection permanent magnet brushless dc of the rotation speed detection unit
Machine, the output end of the current measurement signal modulate circuit, the output end of voltage measurement signal modulate circuit and Rotating speed measring list
The input of the output end connecting detection control unit of member, the output end of the detection control unit connect the first IGBT driving lists
Energy is driven in the input of member and the input of the 2nd IGBT driver elements, the output end connection energy storage of the first IGBT driver elements
The control terminal of unit, the control terminal of the output end connection electric-motor drive unit of the 2nd IGBT driver elements.
Energy unit is unloaded in the energy storage, including：First igbt, the second igbt, the 3rd
Igbt, the 4th igbt, the 5th igbt, the 6th insulated gate bipolar transistor
Pipe, the 7th igbt, the 8th igbt, the 9th igbt, the first afterflow two
Pole pipe, the second fly-wheel diode, the 3rd fly-wheel diode, the 4th fly-wheel diode, the 5th fly-wheel diode, the pole of the 6th afterflow two
Pipe, the 7th fly-wheel diode, the 8th fly-wheel diode, the 9th fly-wheel diode, the 16th diode, the 17th diode, filter
Ripple electric capacity, the first divider resistance, the second divider resistance, unload can resistance and Hall sensor；
The colelctor electrode of first igbt connects the colelctor electrode of the second igbt, the 3rd
The colelctor electrode of igbt, the negative electrode of the first fly-wheel diode, the negative electrode of the second fly-wheel diode, the 3rd afterflow two
The anode of the negative electrode of pole pipe and the 16th diode, the emitter stage of first igbt connect the 4th insulated gate
The colelctor electrode of bipolar transistor, the anode of the first fly-wheel diode, the first of the negative electrode of the 4th fly-wheel diode and three phase mains
Output end, the emitter stage of second igbt connect the anode of the second fly-wheel diode, the 5th insulated gate pair
Second output end of the colelctor electrode of gated transistors, the negative electrode of the 5th fly-wheel diode and three phase mains, the 3rd insulated gate are double
The anode of emitter stage the 3rd fly-wheel diode of connection of gated transistors, the colelctor electrode of the 6th igbt, the 6th continue
Flow the negative electrode of diode and the 3rd output end of three phase mains, the emitter stage connection the 5th of the 4th igbt
The emitter stage of igbt, the emitter stage of the 6th igbt, the anode of the 4th fly-wheel diode,
The anode of five fly-wheel diodes, the anode of the 6th fly-wheel diode, filter capacitor one end, unload can resistance one end, second point
One end of piezoresistance and the negative input of electric-motor drive unit, the negative electrode of the 16th diode connect the 17th diode
Anode, the other end of filter capacitor, the colelctor electrode of the 9th igbt, the negative electrode of the 9th fly-wheel diode,
The anode of the emitter stage of eight igbts and the 8th fly-wheel diode, the negative electrode connection the of the 17th diode
The negative electrode of the colelctor electrode of seven igbts and the 7th fly-wheel diode, the hair of the 7th igbt
Emitter-base bandgap grading connects the anode of the 7th fly-wheel diode and unloads the other end of energy resistance, the transmitting of the 9th igbt
Pole connects the anode of the 9th fly-wheel diode and one end of the first divider resistance, the other end connection the of first divider resistance
The other end of two divider resistances and the input of voltage measurement signal modulate circuit, the collection of the 8th igbt
Electrode connects the negative electrode and motor-drive circuit positive input of the 8th fly-wheel diode, and the Hall sensor is arranged at energy storage
The second output end DC side of energy unit is unloaded, the output end of the Hall sensor connects the defeated of current measurement signal modulate circuit
Enter end, the gate pole of first igbt, the gate pole of the second igbt, the 3rd insulated gate bipolar
The gate pole of transistor, the gate pole of the 4th igbt, gate pole, the 6th insulated gate of the 5th igbt
The gate pole of bipolar transistor, the gate pole of the 7th igbt, the gate pole and the 9th of the 8th igbt
The gate pole of igbt connects nine tunnel driving interfaces of the first IGBT drive circuit unit respectively.
The electric-motor drive unit, including：Tenth igbt, the 11st igbt,
12 igbts, the 13rd igbt, the 14th igbt, the 15th insulation
Grid bipolar transistor, the tenth fly-wheel diode, the 11st fly-wheel diode, the 12nd fly-wheel diode, the pole of the 13rd afterflow two
Pipe, the 14th fly-wheel diode and the 15th fly-wheel diode；
The colelctor electrode of tenth igbt connects the colelctor electrode of the 11st igbt, the
The colelctor electrode of 12 igbts, the negative electrode of the tenth fly-wheel diode, the negative electrode of the 11st fly-wheel diode, the tenth
The first output end of energy unit, the emitter stage of the tenth igbt are unloaded in the negative electrode of two fly-wheel diodes and energy storage
Connect anode, colelctor electrode, the moon of the 13rd fly-wheel diode of the 13rd igbt of the tenth fly-wheel diode
The first input end of the permanent-magnet brushless DC electric machine of pole and motor, the emitter stage of the 11st igbt connect
Connect anode, colelctor electrode, the moon of the 14th fly-wheel diode of the 14th igbt of the 11st fly-wheel diode
Pole and the second input of permanent-magnet brushless DC electric machine, the emitter stage connection the 12nd of the 12nd igbt
The anode of fly-wheel diode, the colelctor electrode of the 15th igbt, the negative electrode and permanent magnetism of the 15th fly-wheel diode
3rd input of brshless DC motor, emitter stage connection the 13rd afterflow two pole of the 13rd igbt
The anode of pipe, the emitter stage of the 14th igbt, the anode of the 14th fly-wheel diode, the 15th insulated gate are double
The first output end of energy unit is unloaded in the emitter stage of gated transistors, the anode of the 15th fly-wheel diode and energy storage, and the described tenth is exhausted
The gate pole of edge grid bipolar transistor, gate pole, the door of the 12nd igbt of the 11st igbt
Pole, the gate pole of the 13rd igbt, the gate pole of the 14th igbt and the 15th insulated gate are double
The gate pole of gated transistors connects six tunnel driving interfaces of the 2nd IGBT driver element circuits respectively.
The voltage measurement signal modulate circuit, including：First operational amplifier, the second operational amplifier, the 3rd computing
Amplifier, light-coupled isolation chip, voltage-regulator diode, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the second electric capacity and
3rd electric capacity；
The 3rd output end of energy unit, first computing are unloaded in the positive input terminal connection energy storage of first operational amplifier
The negative input end of amplifier connects the output end of the first operational amplifier and one end of the 4th resistance, the 4th resistance it is another
The negative input end of the second operational amplifier of end connection, one end of the second electric capacity and light-coupled isolation chip, second operation amplifier
The positive input terminal of device connects one end of the 5th resistance, the other end ground connection of the 5th resistance, the other end of second electric capacity
Connect the output end of the second operational amplifier and one end of the 6th resistance, the other end connection light-coupled isolation core of the 6th resistance
Piece, the negative input end of the 3rd operational amplifier connect one end of the 7th resistance, one end of the 3rd electric capacity and light-coupled isolation core
Piece, the positive input terminal connection light-coupled isolation chip of the 3rd operational amplifier, and is grounded, the 3rd operational amplifier it is defeated
Go out anode, the other end of the 7th resistance and the other end of the 3rd electric capacity of end connection voltage-regulator diode, the voltage-regulator diode
Negative electrode connection ground.
The current measurement signal modulate circuit, including：Four-operational amplifier, the 5th operational amplifier, buffer chip,
8th resistance, the 9th resistance, the tenth resistance, the 4th electric capacity and the 5th electric capacity；
The positive input terminal of the four-operational amplifier connects one end of the 8th resistance, and the other end of the 8th resistance connects
Connect energy storage unload can unit the second output end, the negative input end of the four-operational amplifier connects one end and the of the 9th resistance
One end of four electric capacity, the other end of the 9th resistance connect the other end of the 4th electric capacity, the output end of four-operational amplifier
With one end of the tenth resistance, the other end of the tenth resistance connect the 5th electric capacity one end and the 5th operational amplifier it is just defeated
Enter end, the other end ground connection of the 5th electric capacity, the negative input end of the 5th operational amplifier connects the 5th operational amplifier
Output end and buffer chip.
The rotation speed measurement unit uses encoder.
The detection control unit is microprocessor.
The beneficial effects of the utility model：
The utility model proposes a kind of fading unit suitable for electric operating mechanism, due to motor actuating machine
In the running of structure, run time is short, and is supported on constantly changes in the process of running, compared with conventional art, this
Utility model can detect the rotating speed of motor in real time, in motor operation course, detect the tachometer value of motor in real time, when load is sent out
Changing causes the rotating speed of motor to change, and the input voltage value of active quick regulation motor, changes the input of motor with this
Power, to match the load reaction of motor., can active quick regulation DC voltage during motor work is not turned off
Value.
Brief description of the drawings
Fig. 1 is the knot for the fading unit for being applied to electric operating mechanism in the utility model embodiment
Structure block diagram；
Fig. 2 is the knot for the fading unit for being applied to electric operating mechanism in the utility model embodiment
Structure schematic diagram；
Fig. 3 is the circuit theory diagrams that energy unit is unloaded in energy storage in the utility model embodiment；
Fig. 4 is the circuit theory diagrams of voltage measurement signal modulate circuit in the utility model embodiment；
Fig. 5 is the circuit theory diagrams of current measurement signal modulate circuit in the utility model embodiment；
Fig. 6 is the circuit theory diagrams of IGBT driver elements in the utility model embodiment；
Fig. 7 is the circuit theory diagrams of microprocessor in the utility model embodiment.
Embodiment
The utility model embodiment is described in detail below in conjunction with the accompanying drawings.
A kind of fading unit suitable for electric operating mechanism, as shown in figure 1, including：Detection control unit,
Energy unit, electric-motor drive unit and tachometric survey are unloaded in voltage measurement signal modulate circuit, current measurement signal modulate circuit, energy storage
Unit, the first IGBT driver elements, the 2nd IGBT driver elements.
The input connection three phase mains of energy unit is unloaded in energy storage, and the first output end connection motor driving of energy unit is unloaded in energy storage
The input of the second output end connection current measurement signal modulate circuit of energy unit is unloaded in the input of unit, energy storage, and energy storage is unloaded
The input of the 3rd output end connection voltage measurement signal modulate circuit of energy unit, the output end connection of electric-motor drive unit is forever
Magnetic brshless DC motor, the input connection permanent-magnet brushless DC electric machine of rotation speed detection unit, current measurement signal modulate circuit
Output end, the output end connecting detection control unit of the output end of voltage measurement signal modulate circuit and rotation speed detection unit
Input, the output end of detection control unit connect the first IGBT driver elements input and the 2nd IGBT driver elements it is defeated
Enter end, the control terminal of the imperial energy unit of output end connection energy storage of the first IGBT driver elements, the output of the 2nd IGBT driver elements
The control terminal of end connection electric-motor drive unit.
As shown in Figures 2 and 3, energy unit is unloaded in energy storage, including：First igbt T1, the second insulated gate are double
Gated transistors T2, the 3rd igbt T3, the 4th igbt T4, the 5th igbt
T5, the 6th igbt T6, the 7th igbt T7, the 8th igbt T8, the 9th
Igbt T9, the first sustained diode 1, the second sustained diode 2, the 3rd sustained diode the 3, the 4th are continuous
Flow diode D4, the 5th sustained diode 5, the 6th sustained diode 6, the 7th sustained diode 7, the 8th fly-wheel diode
D8, the 9th sustained diode 9, the 16th diode D16, the 17th diode D17, filter capacitor C1, the first divider resistance
R1, the second divider resistance R2, unload energy resistance R3 and Hall sensor；
First igbt T1 colelctor electrode connects the second igbt T2 colelctor electrode, the 3rd
Igbt T3 colelctor electrode, the negative electrode of the first sustained diode 1, the negative electrode of the second sustained diode 2, the 3rd
The anode of the negative electrode of sustained diode 3 and the 16th diode D16, the first igbt T1 emitter stage connection
4th igbt T4 colelctor electrode, the anode of the first sustained diode 1, the negative electrode of the 4th sustained diode 4
With the first output end of three phase mains, the second igbt T2 emitter stage connects the sun of the second sustained diode 2
Pole, the second output of the 5th igbt T5 colelctor electrode, the negative electrode of the 5th sustained diode 5 and three phase mains
End, the 3rd igbt T3 emitter stage connect the anode of the 3rd sustained diode 3, the 6th insulated gate bipolar crystalline substance
Body pipe T6 colelctor electrode, the negative electrode of the 6th sustained diode 6 and the 3rd output end of three phase mains, the 4th insulated gate bipolar are brilliant
Body pipe T4 emitter stage connects the transmitting of the 5th igbt T5 emitter stage, the 6th igbt T6
Pole, the anode of the 4th sustained diode 4, the anode of the 5th sustained diode 5, the anode of the 6th sustained diode 6, filtering
Electric capacity C1 one end, one end, the second divider resistance R2 one end and the negative input of electric-motor drive unit for unloading energy resistance R3,
16th diode D16 negative electrode connection the 17th diode D17 anode, the filter capacitor C1 other end, the 9th insulated gate
Bipolar transistor T9 colelctor electrode, the negative electrode of the 9th sustained diode 9, the 8th igbt T8 emitter stage and
The anode of 8th sustained diode 8, the 17th diode D17 negative electrode connect the 7th igbt T7 current collection
Pole and the negative electrode of the 7th sustained diode 7, the 7th igbt T7 emitter stage connect the 7th sustained diode 7
Anode and unload can resistance R3 the other end, the 9th igbt T9 emitter stage connects the 9th sustained diode 9
Anode and the first divider resistance R1 one end, the first divider resistance R1 other end connects the second divider resistance R2 other end
With the input of voltage measurement signal modulate circuit, the 8th igbt T8 colelctor electrode connection the 8th afterflow two pole
Pipe D8 negative electrode and motor-drive circuit positive input, Hall sensor be arranged at energy storage unload can unit the second output end it is straight
Flow side, the input of the output end connection current measurement signal modulate circuit of Hall sensor, the first igbt
T1 gate leve, the second igbt T2 gate leve, the 3rd igbt T3 gate leve, the 4th insulated gate
Bipolar transistor T4 gate leve, the 5th igbt T5 gate leve, the 6th igbt T6 gate leve,
7th igbt T7 gate leve, the 8th igbt T8 gate leve and the 9th insulated gate bipolar transistor
Pipe T9 gate leve connects nine tunnel driving interfaces of the first IGBT drive circuit unit respectively.
In present embodiment, the model HDC2500AK2H of Hall sensor.
As shown in Figure 2, in present embodiment, electric-motor drive unit, including：Tenth igbt T10, the tenth
One igbt T11, the 12nd igbt T12, the 13rd igbt T13,
14 igbt T14, the 15th igbt T15, the tenth sustained diode the 10, the 11st are continuous
Flow diode D11, the 12nd sustained diode 12, the 13rd sustained diode 13, the 14th sustained diode 14 and the tenth
Five sustained diodes 15；
Tenth igbt T10 the 11st igbt T11 of colelctor electrode connection colelctor electrode,
12nd igbt T12 colelctor electrode, the negative electrode of the tenth sustained diode 10, the 11st sustained diode 11
Negative electrode, the 12nd sustained diode 12 negative electrode and energy storage unload can unit the first output end, the tenth insulated gate bipolar transistor
Pipe T10 emitter stage connects the anode of the tenth sustained diode 10, the 13rd igbt T13 colelctor electrode, the
The first input end of the negative electrode of 13 sustained diodes 13 and the permanent-magnet brushless DC electric machine of motor, the 11st insulated gate are double
Gated transistors T11 emitter stage connects the anode of the 11st sustained diode 11, the 14th igbt T14
Second input of colelctor electrode, the negative electrode of the 14th sustained diode 14 and permanent-magnet brushless DC electric machine, the 12nd insulated gate are double
Gated transistors T12 emitter stage connects the anode of the 12nd sustained diode 12, the 15th igbt T15
3rd input of colelctor electrode, the negative electrode of the 15th sustained diode 15 and permanent-magnet brushless DC electric machine, the 13rd insulated gate are double
Gated transistors T13 emitter stage connects the anode of the 13rd sustained diode 13, the 14th igbt T14
Emitter stage, the anode of the 14th sustained diode 14, the 15th igbt T15 emitter stage, the 15th afterflow
The first output end of energy unit, the tenth igbt T10 gate pole, the tenth are unloaded in diode D15 anode and energy storage
One igbt T11 gate pole, the 12nd igbt T12 gate pole, the 13rd insulated gate bipolar
Transistor T13 gate pole, the 14th igbt T14 gate pole and the 15th igbt T15
Gate pole connects six tunnel driving interfaces of the 2nd IGBT driver element circuits respectively.
As shown in figure 4, voltage measurement signal modulate circuit, including：First operational amplifier U1, the second operational amplifier
U2, the 3rd operational amplifier U3, light-coupled isolation chip HCNR201, voltage-regulator diode VD1, the 4th resistance R4, the 5th resistance R5,
6th resistance R6, the 7th resistance R7, the second electric capacity C2 and the 3rd electric capacity C3；
The 3rd output end of energy unit, the first operational amplifier are unloaded in first operational amplifier U1 positive input terminal connection energy storage
U1 negative input end connects the first operational amplifier U1 output end and the 4th resistance R4 one end, the 4th resistance R4 other end
Negative input end, the second electric capacity C2 one end and the 3 of light-coupled isolation chip HCNR201 for connecting the second operational amplifier U2 are drawn
Pin, the second operational amplifier U2 positive input terminal connect the 5th resistance R5 one end, and the 5th resistance R5 other end is grounded, and second
The electric capacity C2 other end connects the second operational amplifier U2 output end and the 6th resistance R6 one end, and the 6th resistance R6's is another
End connection light-coupled isolation chip HCNR201 the 1st pin, the 3rd operational amplifier U3 negative input end connect the 7th resistance R7's
6th pin of one end, the 3rd electric capacity C3 one end and light-coupled isolation chip HCNR201, the 3rd operational amplifier U3 positive input
End connection light-coupled isolation chip HCNR201 the 5th pin, and be grounded, the 3rd operational amplifier U3 output end connection voltage stabilizing two
The other end of pole pipe VD1 anode, the 7th resistance R7 other end and the 3rd electric capacity C3, voltage-regulator diode VD1 negative electrode connection
Ground, light-coupled isolation chip HCNR201 the 4th pin ground connection.
As shown in figure 5, current measurement signal modulate circuit, including：Four-operational amplifier U4, the 5th operational amplifier
U5, buffer chip 74LVC245AD, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 4th electric capacity C4 and the 5th electric capacity
C5；
Four-operational amplifier U4 positive input terminal connects the 8th resistance R8 one end, the 8th resistance R8 other end connection
The second output end of energy unit is unloaded in energy storage, and four-operational amplifier U4 negative input end connects the 9th resistance R9 one end and the 4th
Electric capacity C4 one end, the 9th resistance R9 other end connect the output of the 4th electric capacity the C4 other end, four-operational amplifier U4
End and the tenth resistance R10 one end, the tenth resistance R10 other end connect the 5th electric capacity C5 one end and the 5th operational amplifier
U5 positive input terminal, the 5th electric capacity C5 other end ground connection, the 5th operational amplifier U5 negative input end connect the 5th computing and put
Big device U5 output end and buffer chip 74LVC245AD A0 pins, buffer chip 74LVC245AD VCC pin connection+5V
Power supply, buffer chip 74LVC245AD Dir pins ground connection, buffer chip 74LVC245AD B0 pins connecting detection control are single
Member.
In present embodiment, the first igbt, the second igbt, the 3rd insulated gate bipolar
Transistor, the 4th igbt, the 5th igbt, the 6th igbt, four-line poem with seven characters to a line
Edge grid bipolar transistor, the 8th igbt, the 9th igbt, the tenth insulated gate bipolar transistor
Pipe, the 11st igbt, the 12nd igbt, the 13rd igbt, the tenth
The model FZ400R12KS4 of four igbts, the 15th igbt.FZ400R12KS4's
The rated current 400A of IGBT module, rated voltage 1200V.
In present embodiment, as shown in fig. 6, be IGBT driver element circuits, including：Driving chip EXN841, optocoupler every
Off-chip piece TLP251, triode, the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 6th electric capacity C6 and
Seven electric capacity C7.
Driving chip EXN841 the 15th pin connects the 13rd resistance R13 one end, and the 13rd resistance R13's is another
Hold connection+15V power supplys, the colelctor electrode of driving chip EXN841 the 14th pin connecting triode, the ground level connection of triode
Detection control unit, the emitter stage connection light-coupled isolation chip TLP251 of triode 1 pin, the 2 of light-coupled isolation chip TLP251
Pin is grounded, light-coupled isolation chip TLP251 4 pins connection driving chip EXN841 5 pin, light-coupled isolation chip TLP251
3 pin connect the 11st resistance R11 one end, the 11st resistance R11 other end connection driving chip EXN841 2 pin, the
Six electric capacity C6 one end and+15 power supplys, driving chip EXN841 9 pin ground connection, driving chip EXN841 1 pin connection the 7th
Electric capacity C7 one end, the 7th electric capacity C7 other end connection driving chip EXN841 3 pin, the 6th electric capacity C6 other end and
12nd resistance R12 one end, the gate leve of the 12nd resistance R12 other end connection igbt.
As shown in fig. 7, detection control unit is microprocessor, model TMS320F28335, this microprocessor is TI public affairs
Take charge of a High Performance DSP processor of production.IGBT driver elements are directly connected to detection control unit, and voltage measurement signal is adjusted
Reason circuit and current measurement signal modulate circuit are connected to detection control unit by buffer chip 743384.
Rotation speed measurement unit uses encoder, model IHA8030.
The above-mentioned fading unit suitable for electric operating mechanism carries out the course of work of electric operating mechanism such as
Under：
Pwm control signal is sent to the first IGBT driver elements by detection control unit, driven by the first IGBT single
Member according to pwm control signal control energy storage unload can the first igbt in unit, the second igbt,
3rd igbt, the 4th igbt, the 5th igbt, the 6th insulated gate bipolar
The break-make of transistor, and turn off the 8th igbt, the 9th igbt of conducting；
Measuring that energy storage unloads by voltage measurement signal modulate circuit can the first divider resistance both end voltage value and the in unit
The both end voltage value of two divider resistances, the current electricity of permanent-magnet brushless DC electric machine is measured by current measurement signal modulate circuit
Stream, and transmit to detection control unit；
First divider resistance both end voltage value, the second divider resistance in energy unit are unloaded according to energy storage by detection control unit
Both end voltage value and permanent-magnet brushless DC electric machine current flow calculate permanent-magnet brushless DC electric machine current voltage value；
If whether the current voltage value of permanent-magnet brushless DC electric machine reaches the current power supply of permanent-magnet brushless DC electric machine
Voltage-target, then pwm control signal is sent to the first IGBT driver elements by detection control unit, driven by the first IGBT
The 8th igbt in energy unit is unloaded in moving cell conducting energy storage；
Pwm control signal is sent to the 2nd IGBT driver elements by detection control unit, driven by the 2nd IGBT single
First the tenth igbt, the 11st insulated gate bipolar transistor according to pwm control signal controlled motor driver element
Pipe, the 12nd igbt, the 13rd igbt, the 14th igbt, the tenth
The break-make of five igbts controls the turn-on sequence of permanent-magnet brushless DC electric machine；
The current rotating speed of permanent-magnet brushless DC electric machine is measured by rotation speed measurement unit, and is transmitted to detection control unit；
Permanent-magnet brushless DC electric machine is calculated according to the current rotating speed of permanent-magnet brushless DC electric machine by detection control unit
Current supply voltage desired value；
Pwm control signal is sent to the first IGBT driver elements by detection control unit, driven by the first IGBT single
Member according to pwm control signal control energy storage unload can the first igbt in unit, the second igbt,
3rd igbt, the 4th igbt, the 5th igbt, the 6th insulated gate bipolar
The break-make of transistor, and turn on the 7th igbt；
Measuring that energy storage unloads by voltage measurement signal modulate circuit can the first divider resistance both end voltage value and the in unit
The both end voltage value of two divider resistances, the current electricity of permanent-magnet brushless DC electric machine is measured by current measurement signal modulate circuit
Stream, and transmit to detection control unit；
First divider resistance both end voltage value, the second divider resistance in energy unit are unloaded according to energy storage by detection control unit
Both end voltage value and permanent-magnet brushless DC electric machine current flow calculate permanent-magnet brushless DC electric machine current voltage value；
If whether the current voltage value of permanent-magnet brushless DC electric machine reaches the current power supply of permanent-magnet brushless DC electric machine
Voltage-target, then pwm control signal is sent to the first IGBT driver elements by detection control unit, driven by the first IGBT
Moving cell off time energy accumulation unloads the 7th igbt and the 9th insulated gate bipolar transistor in energy unit；
The current rotating speed of permanent-magnet brushless DC electric machine is measured by rotation speed measurement unit, and is transmitted to detection control unit；
Whether the current rotating speed for judging current permanent-magnet brushless DC electric machine by detection control unit changes, if currently
Whether the current rotating speed of permanent-magnet brushless DC electric machine changes, then measures DC permanent-magnetic brushless again through rotation speed measurement unit
The current rotating speed of motor, and transmit to detection control unit.
Claims (7)
- A kind of 1. fading unit suitable for electric operating mechanism, it is characterised in that including：Detection control unit, Energy unit, electric-motor drive unit and tachometric survey are unloaded in voltage measurement signal modulate circuit, current measurement signal modulate circuit, energy storage Unit, the first IGBT driver elements, the 2nd IGBT driver elements；The input connection three phase mains of energy unit is unloaded in the energy storage, and the first output end connection motor of energy unit is unloaded in the energy storage The input of the second output end connection current measurement signal modulate circuit of energy unit is unloaded in the input of driver element, the energy storage The input of the 3rd output end connection voltage measurement signal modulate circuit of energy unit, the motor driving are unloaded in end, the energy storage The output end connection permanent-magnet brushless DC electric machine of unit, the input connection permanent magnet brushless dc of the rotation speed detection unit Machine, the output end of the current measurement signal modulate circuit, the output end of voltage measurement signal modulate circuit and Rotating speed measring list The input of the output end connecting detection control unit of member, the output end of the detection control unit connect the first IGBT driving lists Energy is driven in the input of member and the input of the 2nd IGBT driver elements, the output end connection energy storage of the first IGBT driver elements The control terminal of unit, the control terminal of the output end connection electric-motor drive unit of the 2nd IGBT driver elements.
- 2. the fading unit according to claim 1 suitable for electric operating mechanism, it is characterised in that described Energy unit is unloaded in energy storage, including：First igbt, the second igbt, the 3rd insulated gate bipolar are brilliant Body pipe, the 4th igbt, the 5th igbt, the 6th igbt, four-line poem with seven characters to a line edge Grid bipolar transistor, the 8th igbt, the 9th igbt, the first fly-wheel diode, second continue Flow diode, the 3rd fly-wheel diode, the 4th fly-wheel diode, the 5th fly-wheel diode, the 6th fly-wheel diode, the 7th afterflow Diode, the 8th fly-wheel diode, the 9th fly-wheel diode, the 16th diode, the 17th diode, filter capacitor, first Divider resistance, the second divider resistance, unload energy resistance and Hall sensor；The colelctor electrode of first igbt connects the colelctor electrode of the second igbt, the 3rd insulation The colelctor electrode of grid bipolar transistor, the negative electrode of the first fly-wheel diode, the negative electrode of the second fly-wheel diode, the 3rd fly-wheel diode Negative electrode and the 16th diode anode, the emitter stage of first igbt connects the 4th insulated gate bipolar First output of the colelctor electrode of transistor, the anode of the first fly-wheel diode, the negative electrode of the 4th fly-wheel diode and three phase mains End, the emitter stage of second igbt connect the anode of the second fly-wheel diode, the 5th insulated gate bipolar crystalline substance Second output end of the colelctor electrode of body pipe, the negative electrode of the 5th fly-wheel diode and three phase mains, the 3rd insulated gate bipolar are brilliant The emitter stage of body pipe connects the anode, the colelctor electrode of the 6th igbt, the 6th afterflow two of the 3rd fly-wheel diode The negative electrode of pole pipe and the 3rd output end of three phase mains, the insulation of emitter stage connection the 5th of the 4th igbt The emitter stage of grid bipolar transistor, the emitter stage of the 6th igbt, the anode of the 4th fly-wheel diode, the 5th continue The stream anode of diode, the anode of the 6th fly-wheel diode, one end of filter capacitor, the one end for unloading energy resistance, the second partial pressure electricity One end of resistance and the negative input of electric-motor drive unit, the negative electrode of the 16th diode connect the sun of the 17th diode It is pole, the other end of filter capacitor, the colelctor electrode of the 9th igbt, the negative electrode of the 9th fly-wheel diode, the 8th exhausted The emitter stage of edge grid bipolar transistor and the anode of the 8th fly-wheel diode, the negative electrode connection four-line poem with seven characters to a line of the 17th diode The colelctor electrode of edge grid bipolar transistor and the negative electrode of the 7th fly-wheel diode, the emitter stage of the 7th igbt Connect the anode of the 7th fly-wheel diode and unload the other end of energy resistance, the emitter stage of the 9th igbt connects The anode of the 9th fly-wheel diode and one end of the first divider resistance are connect, the other end of first divider resistance connects second point The other end of piezoresistance and the input of voltage measurement signal modulate circuit, the colelctor electrode of the 8th igbt The negative electrode and motor-drive circuit positive input of the 8th fly-wheel diode are connected, the Hall sensor is arranged at energy storage and unloads energy Second output end DC side of unit, the input of the output end connection current measurement signal modulate circuit of the Hall sensor End, the gate pole of first igbt, the gate pole of the second igbt, the 3rd insulated gate bipolar are brilliant The gate pole of body pipe, the gate pole of the 4th igbt, the gate pole of the 5th igbt, the 6th insulated gate are double The gate pole of gated transistors, the gate pole of the 7th igbt, the gate pole of the 8th igbt and the 9th are exhausted The gate pole of edge grid bipolar transistor connects nine tunnel driving interfaces of the first IGBT drive circuit unit respectively.
- 3. the fading unit according to claim 1 suitable for electric operating mechanism, it is characterised in that described Electric-motor drive unit, including：Tenth igbt, the 11st igbt, the 12nd insulated gate are double Gated transistors, the 13rd igbt, the 14th igbt, the 15th insulated gate bipolar transistor Pipe, the tenth fly-wheel diode, the 11st fly-wheel diode, the 12nd fly-wheel diode, the 13rd fly-wheel diode, the 14th continue Flow diode and the 15th fly-wheel diode；The colelctor electrode of tenth igbt connects the colelctor electrode of the 11st igbt, the 12nd The colelctor electrode of igbt, the negative electrode of the tenth fly-wheel diode, the negative electrode of the 11st fly-wheel diode, the 12nd continue Flow the negative electrode of diode and the first output end of energy unit, the emitter stage connection of the tenth igbt are unloaded in energy storage The anode of tenth fly-wheel diode, the colelctor electrode of the 13rd igbt, the negative electrode of the 13rd fly-wheel diode and The first input end of the permanent-magnet brushless DC electric machine of motor, the emitter stage connection the of the 11st igbt The anode of 11 fly-wheel diodes, the colelctor electrode of the 14th igbt, the 14th fly-wheel diode negative electrode and Second input of permanent-magnet brushless DC electric machine, the emitter stage of the 12nd igbt connect the 12nd afterflow The anode of diode, the colelctor electrode of the 15th igbt, the negative electrode and brushless, permanently of the 15th fly-wheel diode 3rd input of direct current generator, the emitter stage of the 13rd igbt connect the 13rd fly-wheel diode Anode, the emitter stage of the 14th igbt, the anode of the 14th fly-wheel diode, the 15th insulated gate bipolar are brilliant The first output end of energy unit, the tenth insulated gate are unloaded in the emitter stage of body pipe, the anode of the 15th fly-wheel diode and energy storage The gate pole of bipolar transistor, the gate pole of the 11st igbt, the gate pole of the 12nd igbt, The gate pole and the 15th insulated gate bipolar transistor of the gate pole of 13 igbts, the 14th igbt The gate pole of pipe connects six tunnel driving interfaces of the 2nd IGBT driver element circuits respectively.
- 4. the fading unit according to claim 1 suitable for electric operating mechanism, it is characterised in that described Voltage measurement signal modulate circuit, including：First operational amplifier, the second operational amplifier, the 3rd operational amplifier, optocoupler every Off-chip piece, voltage-regulator diode, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the second electric capacity and the 3rd electric capacity；The 3rd output end of energy unit, first operation amplifier are unloaded in the positive input terminal connection energy storage of first operational amplifier The negative input end of device connects the output end of the first operational amplifier and one end of the 4th resistance, and the other end of the 4th resistance connects The negative input end of the second operational amplifier, one end of the second electric capacity and light-coupled isolation chip are connect, second operational amplifier Positive input terminal connects one end of the 5th resistance, the other end ground connection of the 5th resistance, the other end connection of second electric capacity One end of the output end of second operational amplifier and the 6th resistance, the other end connection light-coupled isolation chip of the 6th resistance, The negative input end of 3rd operational amplifier connects one end of the 7th resistance, one end of the 3rd electric capacity and light-coupled isolation chip, The positive input terminal connection light-coupled isolation chip of 3rd operational amplifier, and be grounded, the output of the 3rd operational amplifier Anode, the other end of the 7th resistance and the other end of the 3rd electric capacity of end connection voltage-regulator diode, the moon of the voltage-regulator diode Pole connection ground.
- 5. the fading unit according to claim 1 suitable for electric operating mechanism, it is characterised in that described Current measurement signal modulate circuit, including：Four-operational amplifier, the 5th operational amplifier, buffer chip, the 8th resistance, Nine resistance, the tenth resistance, the 4th electric capacity and the 5th electric capacity；The positive input terminal of the four-operational amplifier connects one end of the 8th resistance, the other end connection storage of the 8th resistance The second output end of energy unit can be unloaded, the negative input end of the four-operational amplifier connects one end and the 4th electricity of the 9th resistance One end of appearance, the other end of the 9th resistance connect the other end of the 4th electric capacity, the output end of four-operational amplifier and the One end of ten resistance, the other end of the tenth resistance connect one end of the 5th electric capacity and the positive input of the 5th operational amplifier End, the other end ground connection of the 5th electric capacity, the negative input end of the 5th operational amplifier connect the 5th operational amplifier Output end and buffer chip.
- 6. the fading unit according to claim 1 suitable for electric operating mechanism, it is characterised in that described Rotation speed measurement unit uses encoder.
- 7. the fading unit according to claim 1 suitable for electric operating mechanism, it is characterised in that described Detection control unit is microprocessor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106655974A (en) * | 2017-03-21 | 2017-05-10 | 沈阳工业大学 | Input power adjusting device and method suitable for motor operating mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655974A (en) * | 2017-03-21 | 2017-05-10 | 沈阳工业大学 | Input power adjusting device and method suitable for motor operating mechanism |
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