CN204707063U - The application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor - Google Patents
The application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor Download PDFInfo
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- CN204707063U CN204707063U CN201520362082.4U CN201520362082U CN204707063U CN 204707063 U CN204707063 U CN 204707063U CN 201520362082 U CN201520362082 U CN 201520362082U CN 204707063 U CN204707063 U CN 204707063U
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Abstract
The utility model discloses a kind of application of frequency converter equipment driving mine hoist for permagnetic synchronous motor, comprise frequency converter, the brake unit be electrically connected with described frequency converter respectively, switch cubicle, PLC control system, mair motor and the first encoder; Described PLC control system also connects the second encoder, tachometer, magnetic switch and watch-dog, and the second encoder also connects tachometer and the first encoder, is connected the 3rd encoder between watch-dog with tachometer; The rotation axis of described mair motor connects cylinder, and cylinder is arranged with cage, and mair motor also connects the first encoder.By using frequency converter, the high accuracy of mair motor is controlled, whole application of frequency converter equipment is run not only safe but also efficient, and in the process of elevator start-stop, the almost impact of imperceptible mechanical system, greatly strengthen the stability of elevator in running and comfort, stability is high, and energy-saving effect is remarkable simultaneously.
Description
Technical field
The utility model relates to application of frequency converter equipment technical field, more particularly relates to the application of frequency converter equipment driving mine hoist for permagnetic synchronous motor.
Background technology
The know-why of frequency converter is the electric energy control device utilizing the on-off action of power semiconductor device power frequency supply to be transformed into another frequency.In prior art, frequency converter mainly adopts interchange-direct current-exchange way, first power frequency AC is converted to DC power supply by rectifier, and then DC power supply is converted to all controllable AC power of frequency, voltage to supply motor.
Frequency control can be applied in the motor haul occasion of the overwhelming majority, because it can provide accurate speeds control, therefore can control mechanically operated rising, decline and variable-speed operation easily.Frequency conversion application can improve the high efficiency of technique greatly, can run motor more energy-conservation than original constant speed simultaneously.
The current domestic mine hoisting Electrical Control overwhelming majority or the interchange winding motor relay-contactor system of rotor loop crosstalk resistance Discrete control, backward in technique, Problems existing is a lot; One is rotor loop series resistor, consumes electric energy, causes energy waste; Two is that resistance classification switches, and be step speed regulation, equipment runs not steady, easily causes electrically and mechanical shock; Three be whole system stability low, run dangerous, and efficiency is very low.
Utility model content
The technical problem that the utility model solves is to provide a kind of safe, efficient, stable high and energy-conservation application of frequency converter equipment driving mine hoist for permagnetic synchronous motor.
For solving the problems of the technologies described above, the technical scheme of employing is: a kind of permagnetic synchronous motor that is used for drives
The application of frequency converter equipment of dynamic mine hoist, comprises frequency converter, the brake unit be electrically connected with described frequency converter respectively, switch cubicle, PLC control system, mair motor and the first encoder;
Described PLC control system also connects the second encoder, tachometer, magnetic switch and watch-dog, and the second encoder also connects tachometer and the first encoder, is connected the 3rd encoder between watch-dog with tachometer;
The rotation axis of described mair motor connects cylinder, and cylinder is arranged with cage, and mair motor also connects the first encoder.
Further, the main circuit that described frequency converter comprises control circuit and is electrically connected with control circuit, control circuit comprises computing circuit, testing circuit, output circuit and drive circuit composition, described main circuit comprises the rectification circuit, intermediate DC link circuit and the inverter circuit that connect successively, control circuit is connected with rectification circuit by the mode of sending controling instruction, and control circuit is connected with inverter circuit by the mode of sending controling instruction.
Further, described rectification circuit comprises diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, electric capacity C1, electric capacity C2, resistance R3 and K switch, diode D1 connects with diode D2, diode D3 connects with diode D4, diode D5 connects with diode D6, and electric capacity C1 connects with electric capacity C2; The circuit that the circuit in parallel diode D3 that diode D1 connects with diode D2 connects with diode D4, the circuit that diode D5 connects with diode D6 and the circuit that electric capacity C1 connects with electric capacity C2, contact resistance R3 between diode D5 and electric capacity C1, resistance R3 parallel diode D7, diode D7 paralleling switch K.
Further, connectivity port R on the connecting circuit of described diode D1 and diode D2, connectivity port S on the connecting circuit of described diode D3 and diode D4, connectivity port T on the connecting circuit of described diode D5 and diode D6.
Further, described intermediate DC link circuit comprises resistance R1 and the resistance R2 of series connection.
Further, described inverter circuit comprises resistance R4, triode Q1, triode Q2, triode Q3, triode Q4, triode Q5, triode Q6, triode Q7, diode D8, diode D9, diode D10, diode D11, diode D12 and diode D13, the circuit that resistance R4 connects with triode Q1 is the triode Q2 in parallel circuit of connecting with triode Q3 successively, the circuit that diode D8 connects with diode D9, the circuit that triode Q4 connects with triode Q5, the circuit that diode D10 connects with diode D11, the circuit that triode Q6 connects with triode Q7, the circuit that diode D12 connects with diode D13.
Further, the connected node of described triode Q2 and triode Q3 is connected with port U, the connected node of described triode Q4 and triode Q5 is connected with port V, the connected node of described triode Q6 and triode Q7 is connected with port W.
The beneficial effects of the utility model are:
Application of frequency converter equipment for permagnetic synchronous motor driving mine hoist of the present utility model drives in the application of mine hoist at permagnetic synchronous motor, by using frequency converter, the high accuracy of mair motor is controlled, whole application of frequency converter equipment is run not only safe but also efficient, and in the process of elevator start-stop, the almost impact of imperceptible mechanical system, greatly strengthen the stability of elevator in running and comfort, stability is high, energy-saving effect is remarkable simultaneously, is the desirable renewal product of mining hoist.
Accompanying drawing explanation
Fig. 1 is the utility model drives the application of frequency converter equipment of mine hoist structure chart for permagnetic synchronous motor.
Fig. 2 is the structure chart of frequency converter in the utility model.
Fig. 3 is the main circuit diagram of frequency converter in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1, the application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor, comprise frequency converter 1, the brake unit 2 be electrically connected with frequency converter 1 respectively, switch cubicle 3, PLC control system 4, mair motor 5 and the first encoder 6, switch cubicle 3 is provided with switch, in addition, switch cubicle 3 is also connected with power supply, and brake unit 2 mainly in case of emergency carries out braking to frequency converter 1 and mair motor 5 and stops.
What PLC control system 4 adopted is Siemens S7-300 series, the PLC of other series can certainly be adopted, PLC control system 4 also connects the second encoder 7, tachometer 8, magnetic switch 15 and watch-dog 10, second encoder 7 also connects tachometer 8 and the first encoder 6, is connected the 3rd encoder 9 between watch-dog 10 with tachometer 9.
The rotation axis of mair motor 5 connects cylinder 16, cylinder 16 is arranged with cage 17, and mair motor 5 also connects the first encoder 6, and here mair motor adopts the energy-saving magneto of TYPK type 950KW/40 pole frequency conversion three-phase synchronous.
This application of frequency converter equipment also comprises signal system 11, monitor station 12, operating desk 13 and Monitor Computer Control System 14, operating desk 13 is directly connected with PLC control system 4, operating desk mainly operates whole PLC control system, control and can also see the program in PLC control system from operating desk, judges whether mistake is to revise timely for program; Signal system 11 connects monitor station 12 and Monitor Computer Control System 14 successively, and the signal transmission that receives to the correctness of monitor station detection signal, is monitored correct signal is passed to Monitor Computer Control System by signal system.
In the present embodiment, in order to improve the accurate control of frequency converter to mair motor, adopting closed-loop vector control model, preventing because mair motor Driving Torque when rising or decline start is not enough and causing the vibrative phenomenon of Mechanical Impact System.Closed-loop vector control model taked by frequency converter, after encoder is installed, rotor magnetic pole initial angle is obtained by self study, according to the relation position rotating encoder of mair motor magnetic pole angle and back-emf signal, the nameplate parameter of mair motor correctly must be inputted before self study, in order to ensure self study best results, carry out dynamic self study.Motor is in zero load, run with load process, the output waveform of difference test frequency converter electric current, voltage, frequency and each signal instruction, verify through field adjustable, make mine hoist in running, control command is logically true, start-stop operates steadily without obviously impacting, and various aspects of performance reaches requirement.
As shown in Figure 2, the main circuit that frequency converter comprises control circuit 101 and is electrically connected with control circuit, control circuit 101 comprises computing circuit, testing circuit, output circuit and drive circuit composition, main circuit comprises the rectification circuit 102, intermediate DC link circuit and the inverter circuit 103 that connect successively, control circuit 101 is connected with rectification circuit 102 by the mode of sending controling instruction, control circuit 101 is connected with inverter circuit 103 by the mode of sending controling instruction, and control circuit 101 is for receiving operational order.
As shown in Figure 3, rectification circuit 102 comprises diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, electric capacity C1, electric capacity C2, resistance R3 and K switch, diode D1 connects with diode D2, diode D3 connects with diode D4, diode D5 connects with diode D6, and electric capacity C1 connects with electric capacity C2; The circuit that the circuit in parallel diode D3 that diode D1 connects with diode D2 connects with diode D4, the circuit that diode D5 connects with diode D6 and the circuit that electric capacity C1 connects with electric capacity C2, contact resistance R3 between diode D5 and electric capacity C1, resistance R3 parallel diode D7, diode D7 paralleling switch K.Connectivity port R on the connecting circuit of diode D1 and diode D2, connectivity port S on the connecting circuit of described diode D3 and diode D4, connectivity port T on the connecting circuit of described diode D5 and diode D6.
Inverter circuit 103 comprises resistance R4, triode Q1, triode Q2, triode Q3, triode Q4, triode Q5, triode Q6, triode Q7, diode D8, diode D9, diode D10, diode D11, diode D12 and diode D13, the circuit that resistance R4 connects with triode Q1 is the triode Q2 in parallel circuit of connecting with triode Q3 successively, the circuit that diode D8 connects with diode D9, the circuit that triode Q4 connects with triode Q5, the circuit that diode D10 connects with diode D11, the circuit that triode Q6 connects with triode Q7, the circuit that diode D12 connects with diode D13.The connected node of described triode Q2 and triode Q3 is connected with port U, the connected node of described triode Q4 and triode Q5 is connected with port V, the connected node of described triode Q6 and triode Q7 is connected with port W.
Intermediate DC link circuit comprises resistance R1 and the resistance R2 of series connection.
The foregoing is only preferred implementation of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. the application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor, it is characterized in that: comprise frequency converter (1), the brake unit (2) be electrically connected with described frequency converter (1) respectively, switch cubicle (3), PLC control system (4), mair motor (5) and the first encoder (6);
Described PLC control system (4) also connects the second encoder (7), tachometer (8), magnetic switch (15) and watch-dog (10), second encoder (7) also connects tachometer (8) and the first encoder (6), is connected the 3rd encoder (9) between watch-dog (10) with tachometer (8);
The rotation axis of described mair motor (5) connects cylinder (16), cylinder (16) is arranged with cage (17), and mair motor (5) also connects the first encoder (6).
2. the application of frequency converter equipment driving mine hoist for permagnetic synchronous motor according to claim 1, it is characterized in that: the main circuit that described frequency converter comprises control circuit (101) and is electrically connected with control circuit, control circuit comprises computing circuit, testing circuit, output circuit and drive circuit composition, described main circuit comprises the rectification circuit (102) connected successively, intermediate DC link circuit and inverter circuit (103), control circuit (101) is connected with rectification circuit (102) by the mode of sending controling instruction, control circuit (101) is connected with inverter circuit (103) by the mode of sending controling instruction.
3. the application of frequency converter equipment driving mine hoist for permagnetic synchronous motor according to claim 2, it is characterized in that: described rectification circuit (102) comprises diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, electric capacity C1, electric capacity C2, resistance R3 and K switch, diode D1 connects with diode D2, diode D3 connects with diode D4, diode D5 connects with diode D6, and electric capacity C1 connects with electric capacity C2; The circuit that the circuit in parallel diode D3 that diode D1 connects with diode D2 connects with diode D4, the circuit that diode D5 connects with diode D6 and the circuit that electric capacity C1 connects with electric capacity C2, contact resistance R3 between diode D5 and electric capacity C1, resistance R3 parallel diode D7, diode D7 paralleling switch K.
4. the application of frequency converter equipment driving mine hoist for permagnetic synchronous motor according to claim 3, it is characterized in that: connectivity port R on the connecting circuit of described diode D1 and diode D2, connectivity port S on the connecting circuit of described diode D3 and diode D4, connectivity port T on the connecting circuit of described diode D5 and diode D6.
5. the application of frequency converter equipment driving mine hoist for permagnetic synchronous motor according to claim 2, is characterized in that: described intermediate DC link circuit comprises resistance R1 and the resistance R2 of series connection.
6. the application of frequency converter equipment driving mine hoist for permagnetic synchronous motor according to claim 2, it is characterized in that: described inverter circuit (103) comprises resistance R4, triode Q1, triode Q2, triode Q3, triode Q4, triode Q5, triode Q6, triode Q7, diode D8, diode D9, diode D10, diode D11, diode D12 and diode D13, the circuit that resistance R4 connects with triode Q1 is the triode Q2 in parallel circuit of connecting with triode Q3 successively, the circuit that diode D8 connects with diode D9, the circuit that triode Q4 connects with triode Q5, the circuit that diode D10 connects with diode D11, the circuit that triode Q6 connects with triode Q7, the circuit that diode D12 connects with diode D13.
7. the application of frequency converter equipment driving mine hoist for permagnetic synchronous motor according to claim 6, it is characterized in that: the connected node of described triode Q2 and triode Q3 is connected with port U, the connected node of described triode Q4 and triode Q5 is connected with port V, the connected node of described triode Q6 and triode Q7 is connected with port W.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520362082.4U CN204707063U (en) | 2015-05-29 | 2015-05-29 | The application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor |
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| CN201520362082.4U CN204707063U (en) | 2015-05-29 | 2015-05-29 | The application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994781A (en) * | 2017-12-25 | 2018-05-04 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
| CN109343465A (en) * | 2018-12-11 | 2019-02-15 | 淮南矿业(集团)有限责任公司 | A kind of the encoder switching device and its switching method of the double tank elevators of auxiliary shaft |
| CN111422768A (en) * | 2020-04-14 | 2020-07-17 | 洛阳源创电气有限公司 | Super-huge lifting machine driving device and electric control system |
| CN111422769A (en) * | 2020-04-14 | 2020-07-17 | 洛阳源创电气有限公司 | Built-in hoist electrical system |
-
2015
- 2015-05-29 CN CN201520362082.4U patent/CN204707063U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994781A (en) * | 2017-12-25 | 2018-05-04 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
| CN107994781B (en) * | 2017-12-25 | 2019-11-15 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
| CN109343465A (en) * | 2018-12-11 | 2019-02-15 | 淮南矿业(集团)有限责任公司 | A kind of the encoder switching device and its switching method of the double tank elevators of auxiliary shaft |
| CN109343465B (en) * | 2018-12-11 | 2024-04-30 | 淮南矿业(集团)有限责任公司 | Encoder switching device and method of auxiliary shaft double-tank elevator |
| CN111422768A (en) * | 2020-04-14 | 2020-07-17 | 洛阳源创电气有限公司 | Super-huge lifting machine driving device and electric control system |
| CN111422769A (en) * | 2020-04-14 | 2020-07-17 | 洛阳源创电气有限公司 | Built-in hoist electrical system |
| CN111422769B (en) * | 2020-04-14 | 2021-05-25 | 洛阳源创电气有限公司 | Built-in hoist electrical system |
| CN111422768B (en) * | 2020-04-14 | 2021-05-25 | 洛阳源创电气有限公司 | Super-huge lifting machine driving device and electric control system |
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