Effect of MTDC system integrating large scale wind power on AC system frequency control

被引：0
|
作者：
Yao L. [1 ]
Wu J. [2 ]
Lu Z. [2 ]
Wang Z. [1 ]
Li Y. [1 ]
Xu L. [3 ]
机构：
[1] State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electric Power Research Institute, Beijing
[2] Department of Electrical Engineering, Tsinghua University, Beijing
[3] Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow
来源：
Wu, Jing | 2016年 / Science Press卷 / 42期
关键词：
Coordinated power control strategy; Frequency control; Frequency event detection method; Inertia response of wind turbine; MTDC system;
D O I：
10.13336/j.1003-6520.hve.20160926002
中图分类号：
学科分类号：
摘要：
Multi-terminal direct current (MTDC) systems incorporating a significant number of large-scale wind farms could result in the overall inertia of the system being substantially reduced, making the system frequency more susceptible to changes in load. Aiming at this problem, this paper proposes a coordinated power redistribution strategy by manipulation of DC voltage in MTDC system so as to provide frequency support control. In addition, for the use of inertia response of wind turbine, a long distance telecommunication-less method of frequency event detection method via detection of DC voltage droop is proposed, avoiding communication delay and communication failure. Finally, a simulation model of three-terminal DC system is built on MATLAB/Simulink platform. The simulation results show that frequency event can be accurately detected by detecting and controlling DC voltage, and larger frequency events caused by larger load imbalances between multi-terminal systems can be solved by using inertia response of wind turbine in combination with coordinated power control strategy. The correctness of the proposed method and strategy is verified by simulation. © 2016, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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收藏
页码：3038 / 3044
页数：6
相关论文
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