Research on Improved Control Strategies of STATCOM for LCC-HVDC Weak Receiving Station

被引：0

作者：

Yao W. ^{[1
]}

Liu G. ^{[1
]}

Hu S. ^{[1
]}

Sun J. ^{[1
]}

Zuo G. ^{[1
]}

Xu E. ^{[1
]}

Gao Z. ^{[1
]}

机构：

[1] Xuji Group Corporation, Xuchang, 461000, Henan Province

来源：

| 2018年 / Chinese Society for Electrical Engineering卷 / 38期

关键词：

Individual phase instantaneous current control; Line commutate converter based high voltage direct current (LCC-HVDC); Static synchronous compensator (STATCOM); Transient individual phase control; Voltage feedforward;

D O I：

10.13334/j.0258-8013.pcsee.171295

中图分类号：

学科分类号：

摘要：

This paper studied the control strategies of static synchronous compensator (STATCOM) for the weak receiving station of line commutate converter based high voltage direct current (LCC-HVDC) transmission system, to improve its transient control characteristics. First, the individual phase instantaneous current control strategy based on proportional resonance controller was discussed. Second, the short-circuit impedance of the dedicated transformer was equivalent to the main circuit of STATCOM, then STATCOM was equivalent to hanging directly in the virtual 35 kV AC system. The instantaneous value feedforward of virtual 35 kV voltage and its on-line switching method with 35 kV voltage amplitude feedforward were proposed and a transient individual phase control strategy with virtual 35 kV voltage as the control target was proposed. Finally, the simulation results, RTDS test and engineering field test verify the rationality and validity of the proposed control strategies in the first set of STATCOM applied to LCC-HVDC weak receiving station in China. © 2018 Chin. Soc. for Elec. Eng.

引用

页码：3662 / 3670

页数：8

共 20 条

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