Title:
METHOD FOR SUPPRESSING 24TH-ORDER NOISE OF ELECTRIC MOTOR ON BASIS OF HARMONIC CURRENT INJECTION
Document Type and Number:
WIPO Patent Application WO/2023/030387
Kind Code:
A1
Abstract:
Provided is a method for suppressing 24th-order noise of an electric motor on the basis of harmonic current injection. The method comprises: converting a three-phase current of an electric motor, which is collected by a three-phase current sampling module, into an id feedback current and an iq feedback current; injecting, into the iq feedback current, a harmonic current iqcomp of a 6th-order electrical frequency, and calibrating the values of a compensated 6th harmonic amplitude igain of the iq feedback current and an initial phase angle θoffset, so as to offset a 6th-order harmonic component in the iq feedback current; making an id instruction current and the id feedback current, and an iq instruction current and the iq feedback current respectively pass through a PI controller, and then performing adjustments to obtain a ud* control voltage and a uq* control voltage; and transforming the ud* control voltage and the uq* control voltage into a uα* voltage and a uβ* voltage by means of inverse Clark transformation and inverse Park transformation, such that the electric motor is controlled by means of the uα* voltage and the uβ* voltage, thereby achieving the aim of suppressing 24th-order noise of the electric motor.
Inventors:
YU ZHIGANG (CN)
LI SHUO (CN)
SUN RUI (CN)
LI SHUO (CN)
SUN RUI (CN)
Application Number:
PCT/CN2022/116213
Publication Date:
March 09, 2023
Filing Date:
August 31, 2022
Export Citation:
Assignee:
BOSCH HUAYU STEERING SYSTEMS CO LTD (CN)
International Classes:
H02P21/05; G01R23/16; H01P1/212; H01S3/109; H02J1/02; H02J3/01; H02M1/12; H02M7/48; H02P21/22; H02P25/024; H02P27/08; H03B1/04
Foreign References:
| CN114244220A | 2022-03-25 | |||
| CN101860300A | 2010-10-13 | |||
| CN103269200A | 2013-08-28 | |||
| CN106762653A | 2017-05-31 | |||
| EP3297156A1 | 2018-03-21 | |||
| US20110298405A1 | 2011-12-08 | |||
| JP2013126342A | 2013-06-24 | |||
| CN202111024658A | 2021-09-02 |
Other References:
HONGYUN JIA ; MING CHENG ; WEI HUA ; WENXIANG ZHAO ; WENLONG LI: "Torque Ripple Suppression in Flux-Switching PM Motor by Harmonic Current Injection Based on Voltage Space-Vector Modulation", IEEE TRANSACTIONS ON MAGNETICS, IEEE, USA, vol. 46, no. 6, 1 June 2010 (2010-06-01), USA, pages 1527 - 1530, XP011309791, ISSN: 0018-9464, DOI: 10.1109/TMAG.2010.2040250
罗科，任超等 (LUO, KE; REN, CHAO ET AL.): "“基于离线电流谐波注入的电动汽车电磁噪声优化” (Non-official translation: Optimization of Electromagnetic Noise of Electric Vehicle Based on Off-line Current Harmonic Injection)", 2020中国汽车工程学会年会论文集 (2020 CHINA-SEA CONGRESS PROCEEDINGS), 27 October 2020 (2020-10-27)
罗科，任超等 (LUO, KE; REN, CHAO ET AL.): "“基于离线电流谐波注入的电动汽车电磁噪声优化” (Non-official translation: Optimization of Electromagnetic Noise of Electric Vehicle Based on Off-line Current Harmonic Injection)", 2020中国汽车工程学会年会论文集 (2020 CHINA-SEA CONGRESS PROCEEDINGS), 27 October 2020 (2020-10-27)
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
Download PDF: