Coordinated Control Strategy of Large-Scale Wind Power GenerationSending System under Mono-Polar Block Fault

被引：0
|
作者：
Luo Y. [1 ]
Yao J. [1 ]
Zhang T. [1 ]
Pei J. [1 ]
Zhang F. [2 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing
[2] State Grid Xinjiang Electric Power Dispatching and Control Center, Urumqi
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 19期
关键词：
Coordinated control; Doubly fed induction generator (DFIG); High voltage direct current (HVDC) transmission system; Mono-polar block;
D O I：
10.19595/j.cnki.1000-6753.tces.181337
中图分类号：
学科分类号：
摘要：
When the mono-polar blocking fault occurs at the sending converter of the high voltage direct current (HVDC) transmission system, the reactive power of the alternating current (AC) sending system will be surplus, which lead to the swell of the voltage of the AC sending system. For ensuring the sending system can operate in stability and security, the power flow of the sending system under HVDC system mono-polar blocking fault has been analyzed firstly. Furthermore, the mechanism of the overvoltage of sending system has been investigated. Combining the power controllable operation area of the doubly fed induction generator (DFIG) and the short-time overload capacity of the converter, the fault ride through control strategy by coordinating the DFIG and HVDC system converter is designed. The simulated results show that the proposed scheme can restrain the AC system's overvoltage of HVDC system converter under mono-polar blocking fault and also ensure that the large-scale DFIG-based wind farms do not trip off the grid during the fault, which effectively enhancing the transient stability of the HVDC sending system. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：4108 / 4118
页数：10
相关论文
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