| 计及GSC电流和控制策略的DFIG稳态故障电流计算模型 |
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| 引用本文： | 陈鹏,张哲,尹项根,肖繁,杨增力,王力军.计及GSC电流和控制策略的DFIG稳态故障电流计算模型[J].电力系统自动化,2016,40(16):8-16. |
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| 作者姓名： | 陈鹏 张哲 尹项根 肖繁 杨增力 王力军 |
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| 作者单位： | 强电磁工程与新技术国家重点实验室, 华中科技大学, 湖北省武汉市 430074,强电磁工程与新技术国家重点实验室, 华中科技大学, 湖北省武汉市 430074,强电磁工程与新技术国家重点实验室, 华中科技大学, 湖北省武汉市 430074,强电磁工程与新技术国家重点实验室, 华中科技大学, 湖北省武汉市 430074,国网湖北省电力公司, 湖北省武汉市 430077,国网湖北省电力公司, 湖北省武汉市 430077 |
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| 基金项目： | 国家自然科学基金资助项目(51177058) |
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| 摘 要： | 电网故障情况下,双馈风电机组(DFIG)的故障电流特性非常复杂,特别是DFIG的撬棒保护未动作时,其馈入电网的故障电流与其所采用的低电压穿越控制策略以及网侧变流器(GSC)特性等因素有关。为满足含DFIG的电网故障分析和保护整定计算的需求,针对DFIG的几种典型低电压穿越控制策略,分别建立了计及GSC电流影响的DFIG统一稳态故障电流计算模型,并通过数字仿真验证了所提出的故障电流计算模型的正确性。
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| 关 键 词： | 双馈风电机组 网侧变流器 控制策略 故障电流计算模型 |
| 收稿时间： | 2015/6/10 0:00:00 |
| 修稿时间： | 2015/9/19 0:00:00 |
Steady Fault Current Calculation Model of Doubly-fed Induction Generator Considering Grid-side Converter Current and Different Control Strategies |
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| CHEN Peng,ZHANG Zhe,YIN Xianggen,XIAO Fan,YANG Zengli and WANG Lijun.Steady Fault Current Calculation Model of Doubly-fed Induction Generator Considering Grid-side Converter Current and Different Control Strategies[J].Automation of Electric Power Systems,2016,40(16):8-16. |
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| Authors: | CHEN Peng ZHANG Zhe YIN Xianggen XIAO Fan YANG Zengli and WANG Lijun |
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| Affiliation: | State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China,State Grid Hubei Electric Power Company, Wuhan 430077, China and State Grid Hubei Electric Power Company, Wuhan 430077, China |
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| Abstract: | The fault current of doubly-fed induction generator(DFIG)is highly complicated when a symmetrical or asymmetrical fault occurs in the grid. Especially, when DFIG''s crowbar is not input under nonsevere fault conditions, the fault current of DFIG fed into the grid is rated to its control strategies, the grid''s reactive power demand, converters'' capacity, etc. In order to meet the demand of fault analysis and relaying protection setting for the grid with DFIGs, according to different control strategies of DFIG during the fault, this paper puts forward a novel steady fault current calculation model of DFIG considering grid side converter current and different control strategies. Then, the grid-side converter current influence on DFIG''s fault current is analyzed. Finally, the correctness of the model proposed is verified by digital simulation. This work is supported by National Natural Science Foundation of China(No. 51177058). |
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| Keywords: | doubly-fed induction generator grid-side converter control strategies fault current calculation model |
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