CN202818220U - Apparatus for rapidly identifying motor parameters - Google Patents
Apparatus for rapidly identifying motor parameters Download PDFInfo
- Publication number
- CN202818220U CN202818220U CN2012204417053U CN201220441705U CN202818220U CN 202818220 U CN202818220 U CN 202818220U CN 2012204417053 U CN2012204417053 U CN 2012204417053U CN 201220441705 U CN201220441705 U CN 201220441705U CN 202818220 U CN202818220 U CN 202818220U
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- Prior art keywords
- inverter
- motor
- signal generator
- sensor
- current
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The utility model relates to an apparatus for identifying motor parameters, and specifically relates to an apparatus for rapidly identifying motor parameters. The apparatus comprises an inverter, a motor connected with the inverter and a signal generator, wherein the signal generator is connected with an input terminal of the inverter by a drive signal generator; a current sensor is arranged on a three-phase winding of the motor, and a voltage sensor is arranged on a direct-current busbar of the inverter; and the current sensor and the voltage sensor are connected by an FFT converter and an operator. With the above structure, parameters of a motor can be obtained by the apparatus by just one experiment, thereby reducing the number of the experiments and improving the efficiency; besides, the motor parameters can be identified without the rotation of the motor.
Description
Technical field
The utility model relates to a kind of device of identifying motor parameter, particularly a kind of device of the Fast Identification parameter of electric machine.
Background technology
Development along with semiconductor technology and control technology, control to asynchronous machine has reached the speed adjusting performance suitable with direct current machine, present Induction Motor-Driven system indirect field orientation or the speed sensorless field oriented control technology used more, the control of asynchronous machine field orientation is with exciting current and the torque current decoupling zero of motor, realize the Instantaneous Control of torque with rotor field-oriented method, no matter be indirect field orientation or speed sensorless field oriented control, all need the accurately parameter of electric machine, so the identification of the parameter of electric machine is the key technology of vector control.
Summary of the invention
The utility model technical issues that need to address provide a kind of by once testing the device that obtains each parameter of motor.
For solving above-mentioned technical problem, the device of the utility model Fast Identification parameter of electric machine comprises inverter and the motor that is connected with inverter, also comprises signal generator, and described signal generator is connected to the input of inverter by driving signal generation device; Be provided with current sensor on described motor three phase windings, be provided with voltage sensor on the described inverter dc bus; Described current sensor is connected with arithmetic unit by the FFT converter with voltage sensor.
Further, described current sensor is Hall current sensor, and described voltage sensor is the Hall voltage transducer.
Further, be provided with the electric current loop compensating network between described signal generator and the driving signal generator, current sensor is connected with the electric current loop compensating network.
After adopting said structure, the utility model just can obtain each parameter of motor fast by once testing, and has reduced experiment number, has improved efficient.Simultaneously, can be in the situation of electric rotating machine not the identifying motor parameter.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Among the figure: 1 is signal generator, and 2 for driving signal generation device, and 3 is inverter, and 4 is motor, and 5 is voltage sensor, and 6 is current sensor, and 7 is the FFT converter, and 8 is arithmetic unit, and 9 is the electric current loop compensating network
Embodiment
The device of the Fast Identification parameter of electric machine comprises inverter 3 and the motor 4 that is connected with inverter as shown in Figure 1.The device of the utility model Fast Identification parameter of electric machine also comprises signal generator 1, described signal generator 1 is connected to the input of inverter 3 by driving signal generation device 2, the signal that signal generator 1 produces is through driving signal generation device 2 modulation rear drive inverters 3.
Be provided with current sensor 6 on described motor three phase windings, be provided with voltage sensor 5 on the described inverter dc bus, described current sensor is Hall current sensor, and described voltage sensor is the Hall voltage transducer.Detect the motor winding current by current sensor 6, detect the inverter DC bus-bar voltage by voltage sensor 5.Described current sensor 6 is connected with arithmetic unit 8 by FFT converter 7 with voltage sensor 5.
Be provided with electric current loop compensating network 9 between described signal generator 1 and the driving signal generator 2, current sensor 6 is connected with electric current loop compensating network 9.The output of electric current loop compensating network utilizes this signal to modulate the driving inverter as voltage reference signal, and the output after the electric current loop compensation can make machine operation in the stable state of given electric current like this.The electric current loop compensating network here adopts the PI pi controller.
The device operation principle of the utility model Fast Identification parameter of electric machine is as follows: signal generator 1 produces the given current signal that comprises DC component and two alternating current components.Given current signal is through inverter and motor, by detecting DC bus-bar voltage and the motor winding current of inverter, DC bus-bar voltage and the motor winding current that detects obtained respectively voltage, current amplitude size and phase place under DC component size and each frequency component by the FFT inverter.Arithmetic unit obtains each parameter value of motor according to voltage, current amplitude size and phase calculation under DC component size and each frequency component.
Claims (3)
1. the device of a Fast Identification parameter of electric machine comprises inverter and the motor that is connected with inverter, it is characterized in that: also comprise signal generator, described signal generator is connected to the input of inverter by driving signal generation device; Be provided with current sensor on described motor three phase windings, be provided with voltage sensor on the described inverter dc bus; Described current sensor is connected with arithmetic unit by the FFT converter with voltage sensor.
2. according to the device of the Fast Identification parameter of electric machine claimed in claim 1, it is characterized in that: described current sensor is Hall current sensor, and described voltage sensor is the Hall voltage transducer.
3. according to the device of the Fast Identification parameter of electric machine claimed in claim 1, it is characterized in that: be provided with the electric current loop compensating network between described signal generator and the driving signal generator, current sensor is connected with the electric current loop compensating network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204417053U CN202818220U (en) | 2012-08-31 | 2012-08-31 | Apparatus for rapidly identifying motor parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204417053U CN202818220U (en) | 2012-08-31 | 2012-08-31 | Apparatus for rapidly identifying motor parameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202818220U true CN202818220U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204417053U Expired - Fee Related CN202818220U (en) | 2012-08-31 | 2012-08-31 | Apparatus for rapidly identifying motor parameters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202818220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281033A (en) * | 2013-05-21 | 2013-09-04 | 常州联力自动化科技有限公司 | Asynchronous motor parameter identification method |
-
2012
- 2012-08-31 CN CN2012204417053U patent/CN202818220U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281033A (en) * | 2013-05-21 | 2013-09-04 | 常州联力自动化科技有限公司 | Asynchronous motor parameter identification method |
| CN103281033B (en) * | 2013-05-21 | 2015-06-24 | 常州联力自动化科技有限公司 | Asynchronous motor parameter identification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Apparatus for rapidly identifying motor parameters Effective date of registration: 20130605 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2013990000351 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140604 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2013990000351 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Apparatus for rapidly identifying motor parameters Effective date of registration: 20140605 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150529 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Apparatus for rapidly identifying motor parameters Effective date of registration: 20150604 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2015990000434 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150831 |
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| EXPY | Termination of patent right or utility model |