CONTROL SYSTEM FOR SELF-SYNCHRONIZING VOLTAGE SOURCE FULL-POWER CONVERSION WIND TURBINE GENERATOR

WIPO Patent Application WO/2023/185661

A1

Disclosed in the present invention is a control system for a self-synchronizing voltage source full-power conversion wind turbine generator. The system comprises: a start control module, which is used for realizing flexible grid-connection start control free from an impulse current; a steady-state control module, which is used for realizing voltage source control in a non-fault state of a power grid; a transient-state control module, which is used for realizing voltage source control in a fault state of the power grid; a transient state and steady state switching module, which is used for realizing seamless switching between a steady-state operation mode and a transient-state operation mode; an asymmetric current control module, which is used for realizing negative-sequence current control under an asymmetric power grid; a harmonic current control module, which is used for realizing harmonic current control under a power grid including background harmonics; and a power grid impedance adaptive control module, which is used for realizing power grid impedance adaptive control in power grid access scenarios having different short-circuit ratios.

CAI XU (CN)
WANG HAN (CN)
QIN YAO (CN)
DENG ZHENYAN (CN)
CAO YUNFENG (CN)
ZHANG CHEN (CN)
YANG RENXIN (CN)

PCT/CN2023/083595

October 05, 2023

March 24, 2023

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UNIV SHANGHAI JIAOTONG (CN)

H02J3/38; H02J3/01

CN114977270A	2022-08-30
CN108270242A	2018-07-10
CN101534065A	2009-09-16
CN112039347A	2020-12-04
CN107658904A	2018-02-02
US20190140569A1	2019-05-09

DUAN & DUAN LAW FIRM (CN)

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