Research on Reactive Power Characteristics Analysis and Reactive Power Control Strategy of HVDC System Under AC Fault

被引：0
|
作者：
He Q. [1 ]
Wang J. [1 ]
Guan X. [1 ]
Li H. [2 ]
Wu W. [2 ]
Liao M. [2 ,3 ]
Fu C. [2 ]
机构：
[1] School of Electric Power, South China University of Technology, Guangdong Province, Guangzhou
[2] State Key Laboratory of HVDC (Electric Power Research Institute of China Southern Power Grid), Guangdong Province, Guangzhou
[3] EHV Power Transmission Company Guangzhou Branch, China Southern Power Grid, Guangdong Province, Guangzhou
来源：
Dianwang Jishu/Power System Technology | 2024年 / 48卷 / 07期
基金：
中国国家自然科学基金;
关键词：
AC fault; commutation failure; HVDC; reactive power;
D O I：
10.13335/j.1000-3673.pst.2023.0931
中图分类号：
学科分类号：
摘要：
VDCOL (voltage dependent current order limitation) strongly coupled the active and reactive HVDC systems. The reactive power support capability of the converter station cannot be fully utilized to improve its recovery performance during the AC fault duration and recovery process. This paper uses the CIGRE HVDC standard test model and the Guiguang II project model as examples. The operating range of DC and reactive power under the AC fault of the two models is analyzed and calculated. It is verified in the PSCAD/EMTDC simulation program. Then the external characteristics of VDCOL are analyzed. The results show that the DC command of VDCOL is not within the calculated operating range. Finally, a reactive power control strategy to replace VDCOL is adopted, which can not only ensure that the control instructions on both sides of the DC are within the operational range, but also improve the fault recovery performance of the HVDC system. © 2024 Power System Technology Press. All rights reserved.
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页码：3023 / 3032
页数：9
相关论文
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