Fault Ride-through Technology of Hybrid HVDC Wind Power System Based on Multi-phase Permanent Magnet Synchronous Generator

被引：0

作者：

Liu Y. ^{[1
]}

Zeng X. ^{[1
]}

Luo Y. ^{[1
]}

Zhang S. ^{[1
]}

Wei M. ^{[1
]}

机构：

[1] School of Electrical Engineering, Xi'an Jiaotong University, Xi'an

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2020年 / 44卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Control strategy; DC fault ride-through; Hybrid high voltage direct current (HVDC); Line commutated converter; Multi-phase permanent magnet synchronous generator (MPPMSG);

D O I：

10.7500/AEPS20190427001

中图分类号：

学科分类号：

摘要：

To solve the problem of various transform series in traditional wind power system, this paper proposes a hybrid topology of high voltage direct current (HVDC) wind power system based on multi-phase permanent magnet synchronous generator (MPPMSG). The multiple sets of the generator windings are separately connected to unipolar converters, which connect in series on the DC side and transfer into high voltage to connect the HVDC transmission line. One set of windings injects reactive power into the generator to improve the generator speed regulation and steady-state performance. In the on-shore substation, the line commutated converter (LCC) based on thyristors is applied to block the short-circuit current when the DC bus is short-circuit. In order to solve the multi-winding coupling problem, a feedback decoupling control strategy is adopted for MPPMSG. According to the analysis of short-circuit characteristics of generator, a fault ride-through strategy is proposed combined with the short-circuit current limitation method, which can deal with the short-circuit fault of DC transmission line effectively. Finally, the switching-circuit simulation model of the hybrid wind power system is built in PSCAD/EMTDC, and the effectiveness of the proposed control strategy is verified. © 2020 Automation of Electric Power Systems Press.

引用

页码：133 / 140

页数：7

共 20 条

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