CN204652275U - A kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation - Google Patents
A kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation Download PDFInfo
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- CN204652275U CN204652275U CN201520401562.7U CN201520401562U CN204652275U CN 204652275 U CN204652275 U CN 204652275U CN 201520401562 U CN201520401562 U CN 201520401562U CN 204652275 U CN204652275 U CN 204652275U
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- synchronous motor
- permagnetic synchronous
- controller
- switching frequency
- torque control
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 31
- 230000010349 pulsation Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation, comprise AC power, rectifier filter, inverter, permagnetic synchronous motor, host computer, controller, current sensor, voltage sensor and velocity transducer.Described host computer is connected with controller, described AC power is connected with inverter by rectifier filter, described inverter is connected with permagnetic synchronous motor by current sensor, described current sensor, voltage sensor, velocity transducer are connected with controller, and described controller is connected with inverter.The utility model device adopts constant switching frequency space vector modulation Direct Torque Control, ensure that the switching frequency of power device is constant, reduces torque pulsation.
Description
Technical field
The utility model relates to permagnetic synchronous motor direct torque control device, is specifically related to a kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation.
Background technology
It is more extensive that permagnetic synchronous motor makes magneto apply with its high efficiency, high torque (HT) ratio of inertias, high-energy-density and obtain many concerns, the particularly develop rapidly of permanent magnetic material in recent years.
Direct torque control (DTC) as one of high-performance AC speed regulating control strategy has a lot of excellent properties, thus obtains and pays close attention to widely.DTC system configuration is simple, torque energy directly controls, torque dynamic response fast and strong robustness etc. is shown to the parameter of electric machine.
Traditional permagnetic synchronous motor direct torque control adopts torque, magnetic linkage hystersis controller, makes system switching frequency non-constant.And from prefabricated switch list, choose suitable space vector of voltage by certain rule motor torque, magnetic linkage are directly controlled, make the pulsation of magnetic linkage and torque larger.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation is provided, this device adopts constant switching frequency space vector modulation Direct Torque Control, ensure that the switching frequency of power device is constant, reduce torque pulsation.
The utility model adopts following technical scheme.
Based on a permagnetic synchronous motor direct torque control device for constant switching frequency space vector modulation, comprise AC power, rectifier filter, inverter, permagnetic synchronous motor, host computer, controller, current sensor, voltage sensor and velocity transducer.Described host computer is connected with controller, described AC power is connected with inverter by rectifier filter, described inverter is connected with permagnetic synchronous motor by current sensor, described current sensor, voltage sensor, velocity transducer are connected with controller, and described controller is connected with inverter.
Described controller adopts constant switching frequency space vector modulation Direct Torque Control.
Described current sensor is input to controller by detecting permanent-magnetic synchronous motor stator side A, B phase current obtained.
Described voltage sensor is input to controller by detecting the DC bus-bar voltage obtained.
The speed detecting the permagnetic synchronous motor obtained is input to controller by described velocity transducer.
Compared with prior art, the beneficial effects of the utility model are.
The utility model device adopts constant switching frequency space vector modulation Direct Torque Control, ensure that the switching frequency of power device is constant, reduces torque pulsation.
Accompanying drawing explanation
Accompanying drawing 1 is structured flowchart of the present utility model.
Drawing reference numeral explanation.
1. AC power, 2. rectifier filter, 3. inverter, 4. permagnetic synchronous motor, 5. voltage sensor, 6. current sensor, 7. velocity transducer, 8. host computer, 9. controller.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
See accompanying drawing.Based on a permagnetic synchronous motor direct torque control device for constant switching frequency space vector modulation, comprise AC power (1), rectifier filter (2), inverter (3), permagnetic synchronous motor (4), voltage sensor (5), current sensor (6), velocity transducer (7), host computer (8) and controller (9).Described host computer (8) is connected with controller (9), described AC power (1) is connected with inverter (3) by rectifier filter (2), described inverter (3) is connected with permagnetic synchronous motor (4) by current sensor (6), described voltage sensor (5), current sensor (6), velocity transducer (7) are connected with controller (9), and described controller (9) is connected with inverter (3).Voltage sensor (5) is input to controller (9) by detecting the DC bus-bar voltage obtained, current sensor (6) will detect permagnetic synchronous motor (4) the stator side A obtained, B phase current is input to controller (9), the speed detecting the permagnetic synchronous motor obtained is input to controller (9) by velocity transducer (7), the pwm signal calculated is exported to inverter (3) by constant switching frequency space vector modulation Direct Torque Control by controller (9), inverter (3) exports three-phase voltage and drives permagnetic synchronous motor (4) to run.
Claims (5)
1. the permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation, it is characterized in that: comprise AC power, rectifier filter, inverter, permagnetic synchronous motor, host computer, controller, current sensor, voltage sensor and velocity transducer, described host computer is connected with controller, described AC power is connected with inverter by rectifier filter, described inverter is connected with permagnetic synchronous motor by current sensor, described current sensor, voltage sensor, velocity transducer is connected with controller, described controller is connected with inverter.
2. a kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation according to claim 1, is characterized in that: described controller adopts constant switching frequency space vector modulation Direct Torque Control.
3. a kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation according to claim 1, is characterized in that: described current sensor is input to controller by detecting permanent-magnetic synchronous motor stator side A, B phase current obtained.
4. a kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation according to claim 1, is characterized in that: described voltage sensor is input to controller by detecting the DC bus-bar voltage obtained.
5. a kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation according to claim 1, is characterized in that: the speed detecting the permagnetic synchronous motor obtained is input to controller by described velocity transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401562.7U CN204652275U (en) | 2015-06-12 | 2015-06-12 | A kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401562.7U CN204652275U (en) | 2015-06-12 | 2015-06-12 | A kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204652275U true CN204652275U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520401562.7U Expired - Fee Related CN204652275U (en) | 2015-06-12 | 2015-06-12 | A kind of permagnetic synchronous motor direct torque control device based on constant switching frequency space vector modulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204652275U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL426170A1 (en) * | 2018-07-02 | 2019-02-25 | Instytut Napędów I Maszyn Elektrycznych Komel | Two-machine driving system for electrovibration machines and method to start it up and control at work |
| PL426169A1 (en) * | 2018-07-02 | 2019-02-25 | Instytut Napędów I Maszyn Elektrycznych Komel | Electrovibration machine driving system |
-
2015
- 2015-06-12 CN CN201520401562.7U patent/CN204652275U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL426170A1 (en) * | 2018-07-02 | 2019-02-25 | Instytut Napędów I Maszyn Elektrycznych Komel | Two-machine driving system for electrovibration machines and method to start it up and control at work |
| PL426169A1 (en) * | 2018-07-02 | 2019-02-25 | Instytut Napędów I Maszyn Elektrycznych Komel | Electrovibration machine driving system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |