Variable intercept DC-voltage droop control for VSC-MTDC system

被引：0
|
作者：
Zhang H. [1 ]
Yuan Z. [1 ]
Zhao Y. [2 ]
Liu G. [2 ]
Yao S. [2 ]
机构：
[1] Department of Electrical Engineering, Tsinghua University, Beijing
[2] Shenzhen Power Supply Company, Shenzhen
来源：
| 2016年 / Electric Power Automation Equipment Press卷 / 36期
关键词：
DC voltage droop control; HVDC power transmission; Variable intercept; Voltage source converter; Wind farms;
D O I：
10.16081/j.issn.1006-6047.2016.10.009
中图分类号：
学科分类号：
摘要：
A strategy of variable intercept DC-voltage droop control is proposed for the VSC-MTDC (Voltage Source Converter-based Multi-Terminal HVDC) system used in the grid-connection of wind farm, which changes the intercept by modifying the power reference to parallel move the characteristic curve of DC voltage vs. active power for the DC-voltage adjustment to control the DC-voltage of system within the allowable range. If the wind power remains stable for a certain period and the system operates in a stable condition, the voltage deviation will be eliminated by the proposed control strategy and the DC-voltage adjusted to the rated value. With a typical five-terminal DC transmission system as an example, the EMTDC/PSCAD simulation verifies the correctness of the proposed strategy, suitable for the VSC-MTDC system containing the wind farm with frequent power change. © 2016, Electric Power Automation Equipment Press. All right reserved.
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页码：60 / 64
页数：4
相关论文
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