Title:
VECTOR CONTROL METHOD FOR VEHICLE PERMANENT MAGNET SYNCHRONOUS ELECTRIC MOTOR BASED ON DIRECT CURRENT POWER
Document Type and Number:
WIPO Patent Application WO/2022/199217
Kind Code:
A1
Abstract:
Disclosed in the present invention is a vector control method for a vehicle permanent magnet synchronous electric motor based on direct current power. The method comprises a current closed-loop adjustment module, a modulation ratio deviation calculation module, a current instruction angle compensation module, a current angle preset module, a current instruction angle limit comparator, a current given amplitude compensation module and a current given vector correction module. By means of the present invention, an adjustment direction is always a flux weakening direction, such that instability caused by repeated adjustment does not occur; by means of the present method, simultaneous correction is performed by means of introducing a dq current, such that the pressure of preventing voltage saturation can be shared to the dq current, and the deviation of an output torque due to excessive adjustment of a uniaxial current is prevented from being too large; and by means of the present invention, the precision of the torque is ensured while ensuring a traditional flux weakening goal of stabilizing the control of the system.
Inventors:
JI FEIFAN (CN)
LI JING (CN)
CHEN YUWEI (CN)
LI JING (CN)
CHEN YUWEI (CN)
Application Number:
PCT/CN2022/070799
Publication Date:
September 29, 2022
Filing Date:
January 07, 2022
Export Citation:
Assignee:
UNIV ZHEJIANG CITY COLLEGE (CN)
International Classes:
H02P21/22; H02P21/00; H02P21/14; H02P25/022
Foreign References:
| CN112671300A | 2021-04-16 | |||
| CN113328666A | 2021-08-31 | |||
| CN111711394A | 2020-09-25 | |||
| CN111277182A | 2020-06-12 | |||
| CN111262492A | 2020-06-09 | |||
| CN103988419A | 2014-08-13 | |||
| JP2010172060A | 2010-08-05 |
Other References:
BEDETTI NICOLA; CALLIGARO SANDRO; PETRELLA ROBERTO: "Analytical Design and Autotuning of Adaptive Flux-Weakening Voltage Regulation Loop in IPMSM Drives With Accurate Torque Regulation", IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, vol. 56, no. 1, 19 September 2019 (2019-09-19), US , pages 301 - 313, XP011766832, ISSN: 0093-9994, DOI: 10.1109/TIA.2019.2942807
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD (CN)
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