CN103346724B - Identification method for stator self-inductance parameter of wound-rotor induction motor - Google Patents
Identification method for stator self-inductance parameter of wound-rotor induction motor Download PDFInfo
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- CN103346724B CN103346724B CN201310243847.8A CN201310243847A CN103346724B CN 103346724 B CN103346724 B CN 103346724B CN 201310243847 A CN201310243847 A CN 201310243847A CN 103346724 B CN103346724 B CN 103346724B
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Abstract
The present invention discloses a kind of identification method for stator self-inductance parameter of wound-rotor induction motor, and the method is opened a way by wound-rotor motor rotor windings; Adopt stator current control unit output stator q shaft current to be 0, stator d shaft current is the control signal of a constant; Power drive unit is adopted to receive described control signal output driving current; Wound-rotor motor stator winding is adopted to receive described drive current; Adopt stator winding voltage sensor measurement wound-rotor motor stator winding to obtain stator q shaft voltage signals, adopt rotor windings voltage sensor to measure wound-rotor motor rotor windings and obtain rotor q shaft voltage signals; Adopt identification unit to receive described stator q shaft voltage signals and described rotor q shaft voltage signals, be multiplied with wound-rotor motor stator mutual inductance parameter with stator q shaft voltage, then divided by rotor q shaft voltage, obtain stator self inductance parameter.The tedious work that the present invention saves Artificial Cognition and the error caused thus, calculate simple, the identification time is few.
Description
Technical field
The present invention relates to a kind of wound-rotor motor parameter identification method, particularly relate to a kind of identification method for stator self-inductance parameter of wound-rotor induction motor.
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 change, 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 stator self inductance parameter.But stator self inductance parameter producer does not generally provide.Even if producer can provide, due to the impact of the various factors such as generating material, assembly technology, same batch, parameter between same model motor also can exist certain difference.Therefore, the quick and precisely discrimination method seeking wound-rotor motor stator self inductance parameter is necessary.At present, known prior art is the stator self inductance parameter being obtained wound-rotor motor by stall and no load test.Therefore, the identification time of prior art is longer, workload is comparatively large, be subject to the subjective factor impact of operating personnel, and most use scene does not have this actual measurement condition, adds the application difficulty of vector control.Therefore, how fast and accurately the stator self inductance parameter of identification wound-rotor motor, 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 identification method for stator self-inductance parameter of wound-rotor induction motor.
Identification method for stator self-inductance parameter of wound-rotor induction motor of the present invention, comprises the following steps:
Step 1: wound-rotor motor rotor windings is opened a way;
Step 2: adopt stator current control unit output stator q shaft current to be 0, stator d shaft current is the control signal of a constant;
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 stator winding voltage sensor measurement wound-rotor motor stator winding to obtain stator q shaft voltage signals, adopt rotor windings voltage sensor to measure wound-rotor motor rotor windings and obtain rotor q shaft voltage signals;
Step 6: adopt identification unit to receive described stator q shaft voltage signals and described rotor q shaft voltage signals, and be multiplied with wound-rotor motor stator mutual inductance parameter with stator q shaft voltage, then divided by rotor q shaft voltage, obtain stator self inductance parameter.
The tedious work that the present invention can save Artificial Cognition and the error caused thus, and calculate simple, 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 stator self 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 windings 104, stator winding voltage transducer 105, rotor windings voltage sensor 106, identification unit 107, wherein the output of stator current control unit 101 is connected with the input of power drive unit 102, the input of the output termination wound-rotor motor stator winding 103 of power drive unit 102, the input of the output termination stator winding voltage transducer 105 of wound-rotor motor stator winding 103, an input of the output termination identification unit 107 of stator winding voltage transducer 105, the output of wound-rotor motor rotor windings 104 switches through the input of sub-winding voltage transducer 106, another input of the output termination identification unit 107 of rotor windings voltage sensor 106.
Composition graphs 1 describes identification method for stator self-inductance parameter of wound-rotor induction motor of the present invention, comprises the following steps:
Step 1: wound-rotor motor rotor windings is opened a way;
Step 2: adopt stator current control unit output stator q shaft current to be 0, stator d shaft current is the control signal of a constant;
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 stator winding voltage sensor measurement wound-rotor motor stator winding to obtain stator q shaft voltage signals, adopt rotor windings voltage sensor to measure wound-rotor motor rotor windings and obtain rotor q shaft voltage signals;
Step 6: adopt identification unit to receive described stator q shaft voltage signals and described rotor q shaft voltage signals, and by stator q shaft voltage and wound-rotor motor stator mutual inductance parameter, be multiplied, then divided by rotor q shaft voltage, obtain stator self inductance parameter.
Claims (3)
1. an identification method for stator self-inductance parameter of wound-rotor induction motor, is characterized in that comprising the following steps:
Step 1: wound-rotor motor rotor windings is opened a way;
Step 2: adopt stator current control unit output stator q shaft current to be 0, stator d shaft current is the control signal of a constant;
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 stator winding voltage sensor measurement wound-rotor motor stator winding to obtain stator q shaft voltage signals, adopt rotor windings voltage sensor to measure wound-rotor motor rotor windings and obtain rotor q shaft voltage signals;
Step 6: adopt identification unit to receive described stator q shaft voltage signals and described rotor q shaft voltage signals, and be multiplied with wound-rotor motor stator mutual inductance parameter with stator q shaft voltage, then divided by rotor q shaft voltage, obtain stator self inductance parameter.
2. identification method for stator self-inductance parameter of wound-rotor induction motor 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. identification method for stator self-inductance parameter of wound-rotor induction motor 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310243847.8A CN103346724B (en) | 2012-11-13 | 2013-06-19 | Identification method for stator self-inductance parameter of wound-rotor induction motor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452012 | 2012-11-13 | ||
| CN201210452012.9 | 2012-11-13 | ||
| CN201310243847.8A CN103346724B (en) | 2012-11-13 | 2013-06-19 | Identification method for stator self-inductance parameter of wound-rotor induction motor |
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| Publication Number | Publication Date |
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| CN103346724A CN103346724A (en) | 2013-10-09 |
| CN103346724B true CN103346724B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310243847.8A Active CN103346724B (en) | 2012-11-13 | 2013-06-19 | Identification method for stator self-inductance parameter of wound-rotor induction motor |
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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 |
| CN1771440A (en) * | 2003-06-06 | 2006-05-10 | 三菱电机株式会社 | Device for determining constant of rotating machine |
| CN102193065A (en) * | 2010-03-15 | 2011-09-21 | 南车青岛四方机车车辆股份有限公司 | Automatic linear induction traction motor parameter identification method for general frequency converter |
| US8228013B2 (en) * | 2008-09-10 | 2012-07-24 | Rockwell Automation Technologies, Inc. | Method and apparatus for automatically identifying electrical parameters in a sensor-less PMSM |
-
2013
- 2013-06-19 CN CN201310243847.8A patent/CN103346724B/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 |
| CN1771440A (en) * | 2003-06-06 | 2006-05-10 | 三菱电机株式会社 | Device for determining constant of rotating machine |
| US8228013B2 (en) * | 2008-09-10 | 2012-07-24 | Rockwell Automation Technologies, Inc. | Method and apparatus for automatically identifying electrical parameters in a sensor-less PMSM |
| CN102193065A (en) * | 2010-03-15 | 2011-09-21 | 南车青岛四方机车车辆股份有限公司 | Automatic linear induction traction motor parameter identification method for general frequency converter |
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| CN103346724A (en) | 2013-10-09 |
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Effective date of registration: 20181205 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: 20201201 Address after: No.18 Hujiang Road, Chendian village, Xiannv Town, Yangzhou City, Jiangsu Province 225200 Patentee after: Jiangsu Xinyi Power Equipment Co., Ltd Address before: 401120 No. 117 Songshi North Road, Yubei District, Chongqing Patentee before: CHONGQING HONGBO ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |
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