CN114077240B - Transient reverse torque safety protection method - Google Patents
Transient reverse torque safety protection method Download PDFInfo
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- CN114077240B CN114077240B CN202111344426.5A CN202111344426A CN114077240B CN 114077240 B CN114077240 B CN 114077240B CN 202111344426 A CN202111344426 A CN 202111344426A CN 114077240 B CN114077240 B CN 114077240B
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- motor controller
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- reverse torque
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001052 transient effect Effects 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 230000000630 rising effect Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a transient reverse torque safety protection method, which comprises a tested motor, a tested motor controller, a test accompanying motor and a test accompanying motor controller, wherein the tested motor controller is connected with the tested motor, the test accompanying motor controller is connected with the test accompanying motor, a coupler is arranged between the tested motor and the test accompanying motor, and the transient reverse torque safety protection method also comprises an upper computer, wherein the tested motor controller and the test accompanying motor controller are communicated through the upper computer.
Description
Technical Field
The invention belongs to the technical field of motor production detection, and particularly relates to a transient reverse torque safety protection method.
Background
The electric drive system is used as a core part of the new energy automobile, and the new product performance model, the motor calibration, the whole automobile simulation load, part of factory tests and special loading conditions all need to be subjected to motor-to-towing bench test. When the motor controller is controlled to fail, the torque control of the tested motor controller fails to cause the rising of the rotating speed, and when the counter-potential generated by the rising of the rotating speed is larger, the motor controller and even the simulation battery can be damaged. In order to solve the problem, measures and effects adopted at present are as follows: 1. the torque-controlled motor controller artificially limits the rotating speed, but solidification is not strong in the sense of artificially modifying the rotating speed in test procedures such as numerous motor calibration, whole vehicle simulation load, special working condition loading and the like, and the rotating speed cannot be modified under some solidification conditions. 2. The motor controller with higher counter-potential resistance value is selected, so that the hardware requirement on the motor controller is higher, and meanwhile, the economic cost is also increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for reading the code of the accompanying motor controller by adopting the upper computer, and when the fault occurs, the tested motor controller reads the fault code through the upper computer, so that the tested motor outputs reverse moment, the rise of the rotating speed is prevented, and the invention has low cost and is convenient to operate.
In order to achieve the above purpose, the present invention provides the following technical solutions: the method comprises the steps that the tested motor controller is connected with the tested motor, the accompanying motor controller is connected with the accompanying motor, a coupler is arranged between the tested motor and the accompanying motor, the tested motor controller and the accompanying motor controller are communicated through the upper computer, the torque and the rotating speed are normally given by the tested motor controller and the accompanying motor controller, when the accompanying motor has stall rotating speed, fault codes of the accompanying motor controller are collected by the upper computer, fault codes of the upper computer are collected by the tested motor controller, reverse moment of the tested motor is given, and the rotating speed is prevented from rising.
The coupling is further a clutch coupling.
The clutch type coupling is further connected with the upper computer, and after the tested motor controller collects fault codes of the upper computer and gives reverse torque of the tested motor, the clutch type coupling is controlled to be disconnected.
The tested motor controller only collects and reads codes of the accompanying motor controller, and does not send control codes.
Further, after the upper computer collects the fault code of the accompanying motor controller, the fault code information is recorded and stored.
Compared with the prior art, the invention has the beneficial effects that:
1. under the condition that the rotating speed is rapidly increased due to the stalling of the motor, the generated counter potential is higher, damage can be possibly caused when the counter potential exceeds the withstand voltage value of the IGBT and the analog battery of the motor controller module, and the maintenance cost is higher after the damage, so that the economic loss caused by the damage to the module due to the overhigh counter potential can be prevented;
2. when the motor is used for a drag test, the rotation speed of the protection limit value can be forgotten by manual modification, and the rotation speed protection limit value can be modified without manual modification;
3. selecting a proper motor controller for motor calibration, and not selecting a motor controller with high counter-potential resistance value, so that the cost is saved;
4. during motor test, software is protected one more layer, test time is saved, and efficiency is improved;
5. the rotating speed can not rise in a short time during stall, and the damage of the mechanical coupler part is effectively reduced.
Drawings
FIG. 1 is a control schematic of the present invention.
Reference numerals: 11. a tested motor; 12. a motor controller to be tested; 21. a test accompanying motor; 22. a test accompanying motor controller; 3. a coupling; 4. and an upper computer.
Detailed Description
An embodiment of the transient reverse torque safety protection method of the present invention is further described with reference to fig. 1.
In the description of the present invention, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present invention, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.
The transient reverse torque safety protection method comprises a tested motor 11, a tested motor controller 12, a test accompanying motor controller 22 and a test accompanying motor controller 22 controller, wherein the tested motor controller 12 is connected with the tested motor 11, the test accompanying motor controller 22 is connected with the test accompanying motor controller 22, a coupling 3 is arranged between the tested motor 11 and the test accompanying motor controller 22, the transient reverse torque safety protection method further comprises a host computer 4, the tested motor controller 12 and the test accompanying motor controller 22 controller communicate through the host computer 4, and the method is that the torque and the rotating speed are normally set by the tested motor controller 12 and the test accompanying motor controller 22 controller, when the stall rotating speed of the test accompanying motor controller 22 rises, the fault code of the test accompanying motor controller 22 controller is collected by the host computer 4, the fault code of the host computer 4 is collected by the tested motor controller 12, the reverse torque of the tested motor 11 is set, and the rotating speed is prevented from rising.
Based on the powerful communication function of the motor controller DSP, the communication response is very rapid, the communication response level is ms level, the hardware capability of the motor controller is more powerful, and the communication response is more rapid.
The torque control of the motor controller, id and Iq are normally given, and when the moment of stall speed rise occurs, iq in the opposite direction is given, so that a moment in the opposite direction is generated, and the rise of the limit speed is limited.
Determination mechanism of reverse moment: the test accompanying motor controller 22 is communicated with the upper computer 4 software of the tested motor controller 12, the upper computer 4 software of the tested motor controller 12 only collects fault codes of the test accompanying motor controller 22, and when the test accompanying motor controller 22 reports the fault, the tested motor controller 12 collects that the test accompanying motor controller 22 reports the fault, gives a reverse moment and prevents the rotating speed from rising.
The coupling 3 of the present embodiment is preferably a clutch coupling 3.
In this embodiment, the clutch coupling 3 is preferably connected to the upper computer 4, and after the tested motor controller 12 collects the fault code of the upper computer 4 and gives the reverse torque of the tested motor 11, the clutch coupling 3 is controlled to be disconnected, so as to avoid the damage of the coupling 3.
In this embodiment, the threshold value of the rotational speed may be set in advance, and the clutch 3 is controlled to be disconnected when the rotational speed reaches the threshold value, so as to unload torque.
In this embodiment, after the host computer 4 collects the fault code of the controller of the accompanying motor controller 22, the fault code information is recorded and stored.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (5)
1. A transient reverse torque safety protection method is characterized in that: the test motor control device comprises a tested motor, a tested motor controller, a test accompanying motor and a test accompanying motor controller, wherein the tested motor controller is connected with the tested motor, the test accompanying motor controller is connected with the test accompanying motor, a coupler is arranged between the tested motor and the test accompanying motor, and the test accompanying motor controller is communicated with the test accompanying motor controller through the upper computer.
2. The transient reverse torque safety protection method of claim 1, wherein: the coupling is a clutch coupling.
3. The transient reverse torque safety protection method according to claim 2, characterized in that: the clutch type coupling is connected with the upper computer, and after the tested motor controller collects fault codes of the upper computer and gives reverse torque of the tested motor, the clutch type coupling is controlled to be disconnected.
4. A method of transient reverse torque safety protection as claimed in claim 3, wherein: the tested motor controller only collects and reads codes of the accompanying motor controller and does not send control codes.
5. The transient reverse torque safety protection method of claim 4, wherein: after the upper computer collects the fault code of the accompanying motor controller, the fault code information is recorded and stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344426.5A CN114077240B (en) | 2021-11-15 | 2021-11-15 | Transient reverse torque safety protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344426.5A CN114077240B (en) | 2021-11-15 | 2021-11-15 | Transient reverse torque safety protection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114077240A CN114077240A (en) | 2022-02-22 |
| CN114077240B true CN114077240B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111344426.5A Active CN114077240B (en) | 2021-11-15 | 2021-11-15 | Transient reverse torque safety protection method |
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| CN (1) | CN114077240B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0710430D0 (en) * | 2007-05-31 | 2007-07-11 | Edinburgh Designs Ltd | Turbine for tidal power generation |
| CN102253337A (en) * | 2011-04-18 | 2011-11-23 | 江苏南自通华电气成套有限公司 | Zero-power over underexcitation test method for synchronous motor |
| CN205262736U (en) * | 2015-11-24 | 2016-05-25 | 昆明理工大学 | Multistage planetary gear case combined test platform |
| CN205910323U (en) * | 2016-08-09 | 2017-01-25 | 兰州交通大学 | Traction electric machine test platform |
| CN108663223A (en) * | 2018-06-21 | 2018-10-16 | 中车青岛四方车辆研究所有限公司 | Pulling test platform |
| CN110398380A (en) * | 2018-04-24 | 2019-11-01 | 中车株洲电力机车研究所有限公司 | A kind of Electric Motor Wheel vehicle alternating current drive pilot system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7148652B2 (en) * | 2004-04-30 | 2006-12-12 | Ace-Tronics Company, Inc. | Method and apparatus for determining and handling brake failures in open loop variable frequency drive motors |
| WO2015048156A1 (en) * | 2013-09-26 | 2015-04-02 | Venture Measurement Company Llc | Apparatuses and methods for monitoring stall of motors |
| US10797632B2 (en) * | 2018-08-21 | 2020-10-06 | Schweitzer Engineering Laboratories, Inc. | Sensitive directional element for generator protection |
-
2021
- 2021-11-15 CN CN202111344426.5A patent/CN114077240B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0710430D0 (en) * | 2007-05-31 | 2007-07-11 | Edinburgh Designs Ltd | Turbine for tidal power generation |
| CN102253337A (en) * | 2011-04-18 | 2011-11-23 | 江苏南自通华电气成套有限公司 | Zero-power over underexcitation test method for synchronous motor |
| CN205262736U (en) * | 2015-11-24 | 2016-05-25 | 昆明理工大学 | Multistage planetary gear case combined test platform |
| CN205910323U (en) * | 2016-08-09 | 2017-01-25 | 兰州交通大学 | Traction electric machine test platform |
| CN110398380A (en) * | 2018-04-24 | 2019-11-01 | 中车株洲电力机车研究所有限公司 | A kind of Electric Motor Wheel vehicle alternating current drive pilot system and method |
| CN108663223A (en) * | 2018-06-21 | 2018-10-16 | 中车青岛四方车辆研究所有限公司 | Pulling test platform |
Non-Patent Citations (1)
| Title |
|---|
| 动车组牵引系统地面模拟线路运行的试验方法;郑钢;邹档兵;黄浩;丁懿;;机车电传动(第05期);全文 * |
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| CN114077240A (en) | 2022-02-22 |
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