CN103647495A - Wound type motor stator and rotor mutual inductance parameter identification method - Google Patents
Wound type motor stator and rotor mutual inductance parameter identification method Download PDFInfo
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- CN103647495A CN103647495A CN201310245024.9A CN201310245024A CN103647495A CN 103647495 A CN103647495 A CN 103647495A CN 201310245024 A CN201310245024 A CN 201310245024A CN 103647495 A CN103647495 A CN 103647495A
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Abstract
The invention discloses a wound type motor stator and rotor mutual inductance parameter identification method, and pertains to wound type motor parameter identification methods. According to the invention, a wound type motor rotor winding is caused to be in the open-circuit condition; a stator current control unit is adopted to output a stator q-axis current of 0, wherein the stator d-axis current is a control signal of a ramp signal; a power driving unit is adopted to receive the control signal to output a driving current; a wound type motor stator winding is adopted to receive the driving current; a voltage sensor is adopted to measure the wound type motor rotor winding to obtain a rotor d-axis voltage signal; and an identification unit is adopted to receive the control signal and the rotor d-axis voltage signal, and the rotor d-axis voltage is divided by the slope of the stator d-axis current to obtain stator and rotor mutual inductance parameters. According to the invention, the cockamamie manual identification work and errors caused by the cockamamie manual identification work can be eliminated, and advantages of simple calculation and less identification time can be realized.
Description
Technical field
The present invention relates to a kind of wound-rotor motor parameter identification method, relate in particular to a kind of wound-rotor motor rotor mutual inductance parameter identification method.
Background technology
Wound-rotor motor is widely used in elevator, crane, tower crane etc. to be needed heavy-load start and needs in the place of speed governing.Vector control technology can make wound-rotor motor obtain the transient response characteristic consistent with separately excited DC machine, realizes the quick response to load disturbance and reference value variation, is applied widely.The analysis on Operating of wound-rotor motor vector control and high performance control system all need accurately to know wound-rotor motor rotor mutual inductance parameter.Yet rotor mutual inductance parameter producer does not generally provide.Even if producer can provide, due to the impact of the various factorss such as generating material, assembly technology, also can there is certain difference in the parameter between same batch, same model motor.Therefore, be necessary to seek the quick and precisely discrimination method of wound-rotor motor rotor mutual inductance parameter.At present, known prior art is by stall and no load test, to obtain the rotor mutual inductance parameter of wound-rotor motor.Therefore, the identification time of prior art is long, workload is larger, is subject to operating personnel's subjective factor impact, and most uses scene do not have this actual measurement condition, has increased the application difficulty of vector control.Therefore, the rotor mutual inductance parameter of identification wound-rotor motor how fast and accurately, becoming prior art has problem to be solved.
Summary of the invention
The defect that the object of the invention is to exist for prior art proposes a kind of wound-rotor motor rotor mutual inductance parameter identification method.
Wound-rotor motor rotor mutual inductance parameter identification method of the present invention, comprises the following steps:
Step 1: wound-rotor motor rotor winding is opened a way;
Step 2: adopting stator current control unit output stator q shaft current is 0, the control signal that stator d shaft current is ramp signal;
Stator d shaft current in control signal is less than the rated current of wound-rotor motor;
Step 3: adopt power drive unit to receive described control signal output driving current;
Drive current is less than the rated current of wound-rotor motor;
Step 4: adopt wound-rotor motor stator winding to receive described drive current;
Step 5: adopt voltage sensor to measure wound-rotor motor rotor winding and obtain rotor d shaft voltage signals;
Step 6: adopt identification unit to receive described control signal and rotor d shaft voltage signals, and with rotor d shaft voltage the slope divided by stator d shaft current, obtain rotor mutual inductance parameter.
The present invention can save Artificial Cognition's loaded down with trivial details work and the error causing thus, and calculates simply, and the identification time is few.
Accompanying drawing explanation
Fig. 1 is identification system block diagram of the present invention.
Embodiment
As shown in Figure 1.Wound-rotor motor rotor mutual inductance parameter identification system of the present invention, comprise stator current control unit 101, power drive unit 102, wound-rotor motor stator winding 103, wound-rotor motor rotor winding 104, voltage sensor 105 and identification unit 106, wherein the output of stator current control unit 101 respectively with the input of power drive unit 102, an input of identification unit 106 connects, the input of the output termination wound-rotor motor stator winding 103 of power drive unit 102, the input of the output termination voltage sensor 105 of wound-rotor motor rotor winding 104, another input of the output termination identification unit 106 of voltage sensor 105.
In conjunction with Fig. 1, narrate wound-rotor motor rotor mutual inductance parameter identification method of the present invention, comprise the following steps:
Step 1: wound-rotor motor rotor winding is opened a way;
Step 2: adopting stator current control unit output stator q shaft current is 0, the control signal that stator d shaft current is ramp signal;
Stator d shaft current in control signal is less than the rated current of wound-rotor motor.
Step 3: adopt power drive unit to receive described control signal output driving current;
Drive current is less than the rated current of wound-rotor motor;
Step 4: adopt wound-rotor motor stator winding to receive described drive current;
Step 5: adopt voltage sensor to measure wound-rotor motor rotor winding and obtain rotor d shaft voltage signals;
Step 6: adopt identification unit to receive described control signal and rotor d shaft voltage signals, and with rotor d shaft voltage the slope divided by stator d shaft current, obtain rotor mutual inductance parameter.
Claims (3)
1. a wound-rotor motor rotor mutual inductance parameter identification method, is characterized in that comprising the following steps:
Step 1: wound-rotor motor rotor winding is opened a way;
Step 2: adopting stator current control unit output stator q shaft current is 0, the control signal that stator d shaft current is ramp signal;
Step 3: adopt power drive unit to receive described control signal output driving current;
Step 4: adopt wound-rotor motor stator winding to receive described drive current;
Step 5: adopt voltage sensor to measure wound-rotor motor rotor winding and obtain rotor d shaft voltage signals;
Step 6: adopt identification unit to receive described control signal and rotor d shaft voltage signals, and with rotor d shaft voltage the slope divided by stator d shaft current, obtain rotor mutual inductance parameter.
2. wound-rotor motor rotor mutual inductance parameter identification method according to claim 1, is characterized in that, the stator d shaft current in the control signal described in step 2 is less than the rated current of wound-rotor motor.
3. wound-rotor motor rotor mutual inductance parameter identification method according to claim 1, is characterized in that, the drive current described in step 3 is less than the rated current of wound-rotor motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310245024.9A CN103647495B (en) | 2013-06-19 | 2013-06-19 | Wound-rotor motor rotor mutual inductance parameter identification method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310245024.9A CN103647495B (en) | 2013-06-19 | 2013-06-19 | Wound-rotor motor rotor mutual inductance parameter identification method |
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| CN103647495A true CN103647495A (en) | 2014-03-19 |
| CN103647495B CN103647495B (en) | 2016-01-13 |
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| CN201310245024.9A Active CN103647495B (en) | 2013-06-19 | 2013-06-19 | Wound-rotor motor rotor mutual inductance parameter identification method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474586A (en) * | 2019-08-29 | 2019-11-19 | 上海电气富士电机电气技术有限公司 | A kind of dynamic adjusting method of induction machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689169A (en) * | 1995-03-10 | 1997-11-18 | Allen-Bradley Company, Inc. | Transient inductance identifier for motor control |
| CN101019303A (en) * | 2004-07-21 | 2007-08-15 | 三菱电机株式会社 | Ac rotary machine constant measuring apparatus |
| CN102111103A (en) * | 2010-04-22 | 2011-06-29 | 广东工业大学 | Alternating-current asynchronous motor frequency converter without speed sensor |
| CN102291080A (en) * | 2011-07-08 | 2011-12-21 | 哈尔滨工业大学 | Adaptive-compensation-based asynchronous motor parameter recognition method |
-
2013
- 2013-06-19 CN CN201310245024.9A patent/CN103647495B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689169A (en) * | 1995-03-10 | 1997-11-18 | Allen-Bradley Company, Inc. | Transient inductance identifier for motor control |
| CN101019303A (en) * | 2004-07-21 | 2007-08-15 | 三菱电机株式会社 | Ac rotary machine constant measuring apparatus |
| CN102111103A (en) * | 2010-04-22 | 2011-06-29 | 广东工业大学 | Alternating-current asynchronous motor frequency converter without speed sensor |
| CN102291080A (en) * | 2011-07-08 | 2011-12-21 | 哈尔滨工业大学 | Adaptive-compensation-based asynchronous motor parameter recognition method |
Non-Patent Citations (1)
| Title |
|---|
| 曹瑞霞: "基于三电平矢量变频器的电机参数辨识的研究", 《中国优秀硕士学位论文全文数据库工程科技II辑》, no. 3, 31 March 2013 (2013-03-31), pages 042 - 41 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474586A (en) * | 2019-08-29 | 2019-11-19 | 上海电气富士电机电气技术有限公司 | A kind of dynamic adjusting method of induction machine |
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| CN103647495B (en) | 2016-01-13 |
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Effective date of registration: 20181203 Address after: 401120 No. 117 Songshi North Road, Yubei District, Chongqing Patentee after: Chongqing Hongbo Environmental Protection Engineering Co., Ltd. Address before: No. 2, Mengxi Road, Zhenjiang, Jiangsu Province, Jiangsu Patentee before: Jiangsu University of Science and Technology |
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Effective date of registration: 20201203 Address after: 66 Shuangjin Road, Xiannv Town, Jiangdu District, Yangzhou City, Jiangsu Province 225200 Patentee after: Yangzhou Baifa electromechanical Co., Ltd Address before: 401120 No. 117 Songshi North Road, Yubei District, Chongqing Patentee before: CHONGQING HONGBO ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |