Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于VSC-MTDC系统的改进多点直流电压控制策略

来源:pc蛋蛋预测发布时间:2018-12-17 13:17 浏览次数:13
基于VSC-MTDC系统的改进多点直流电压控制策略
 
张涛,宋恒东,潘灵敏,昌国际,吴伟
(国网江苏省电力有限公司检修分公司,江苏 南京 211102)
 
    摘 要:针对多端直流输电系统定电压控制方式的不足,提出了考虑系统启动之初和大幅功率变动时的改进多点直流电压控制策略,并搭建了含等效海上风电场的多端直流输电系统,利用MATLAB/Simulink在多种扰动和故障运行工况下进行了仿真分析。仿真结果表明,该控制策略具有较好的响应速度、精度和稳定性,能够实现系统换流站间的稳定运行。
    关键词:风电??;多点直流电压控制;多端直流输电
    中图分类号:TM714.2     文献标识码:A     文章编号:1007-3175(2018)12-0012-05
 
Improved Multi-Point Direct Current Voltage Control Strategy Based on Voltage Source
Converter-Multi-Terminal Direct Current
 
ZHANG Tao, SONG Heng-dong, PAN Ling-min, CHANG Guo-ji, WU Wei
(State Grid Jiangsu Electric Power Co., Ltd Maintenance Branch Company, Nanjing 2111 02, China)
 
    Abstract: Aiming at the constant voltage control method for multi-terminal direct current (DC) transmission systems, this paper proposed to improve the multipoint DC voltage control strategy considering the time of first system booting and sharp power fluctuation and established the multipoint DC transmission system equivalent to the offshore wind plant. Simulink in MATLAB was used to carry out simulation and analysis under a variety of disturbance and malfunction operation condition. Simulation results show that the control strategy has good response speed, precision and stability, and can achieve stable operation of the converter stations.
    Key words: wind farm; multi-point direct current voltage control; multi-terminal direct current transmission
 
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