Title:
POWER COMPENSATION CONTROL METHOD AND APPARATUS FOR HIGH-POWER MULTI-FUNCTIONAL HIGH-EFFICIENCY CHARGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/040724
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of high-efficiency power conversion system control, and provides a power compensation control method and apparatus for a high-power multi-functional high-efficiency charging system. The topology of the charging system comprises at least two parallel high-frequency link matrix converters. The power compensation control method comprises: calculating a difference between an ideal reference input current phase and an input voltage phase of an ith converter in a dq two-phase synchronous rotating coordinate system, wherein i is an odd number; according to the phase difference, calculating a phase angle at which a space current vector of an (i+1)th converter needs to rotate, wherein the phase angle at which the space current vector needs to rotate enables a total instantaneous reactive power on input sides of the ith converter and the (i+1)th converter to be zero; correspondingly rotating the space current vector of the (i+1)th converter, and determining a sector to which the rotated space current vector belongs; and generating a corresponding control pulse signal on the basis of the corresponding sector and a modulation ratio so as to implement power compensation for the (i+1)th converter.
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Inventors:
ZHANG CHENGHUI (CN)
WU GAOTONG (CN)
DUAN BIN (CN)
SONG JINQIU (CN)
WU GAOTONG (CN)
DUAN BIN (CN)
SONG JINQIU (CN)
Application Number:
PCT/CN2022/125717
Publication Date:
February 29, 2024
Filing Date:
October 17, 2022
Export Citation:
Assignee:
UNIV SHANDONG (CN)
International Classes:
H02J3/32; H02M7/219
Foreign References:
| CN105406708A | 2016-03-16 | |||
| CN111431422A | 2020-07-17 | |||
| CN113258793A | 2021-08-13 | |||
| CN113346787A | 2021-09-03 | |||
| US20050248969A1 | 2005-11-10 |
Other References:
WEN-LANG DENG, LONG MEI-ZHI; CUI GUI-PING; LI HUI; GUO YOU-GUI, YUAN TING, LI HUI: "Bipolar space vector pulse-width modulation of high frequency link two-stage matrix converter", ELECTRIC MACHINES AND CONTROL, vol. 17, no. 11, 15 November 2013 (2013-11-15), pages 75 - 82, XP093142363, DOI: 10.15938/j.emc.2013.11.015
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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