Power Coupling Characteristics and Decoupling Strategy of VSC-HVDC System Connected to Weak AC Power Grid

被引：0
|
作者：
Shao, Bingbing [1 ]
Zhao, Shuqiang [1 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources, North China Electric Power University, Baoding,Hebei Province,071003, China
来源：
Dianwang Jishu/Power System Technology | 2019年 / 43卷 / 12期
关键词：
Electric rectifiers - Electric power transmission networks;
D O I：
10.13335/j.1000-3673.pst.2018.2105
中图分类号：
TM72 [输配电技术];
学科分类号：
摘要：
In view of the power coupling problems of voltage source converter based HVDC (VSC-HVDC) transmission system connected to weak AC power grid, the power coupling characteristics in the system were revealed by studying the linearized relationship between the active power, reactive power, terminal voltage amplitude and d-, q-axis current of rectifier/inverter, and a decoupling algorithm was proposed. Finally, a model of VSC-HVDC connected to the weak AC power grid was built in PSCAD/EMTDC, and the coupling characteristics of power are verified. The proposed dynamic feed-forward compensation decoupling algorithm is proved with better decoupling effect compared with static feedforward compensation decoupling algorithm and traditional vector current control algorithm. © 2019, Power System Technology Press. All right reserved.
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页码：4532 / 4540
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