| 适用于双馈风机故障穿越的多功能串联补偿器 |
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| 引用本文： | 涂春鸣,杨洁,吴宁,郭祺,姜飞,熊卓.适用于双馈风机故障穿越的多功能串联补偿器[J].电源学报,2019,17(4):112-121. |
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| 作者姓名： | 涂春鸣 杨洁 吴宁 郭祺 姜飞 熊卓 |
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| 作者单位： | 国家电能变换与控制工程技术研究中心(湖南大学), 长沙 410082,国家电能变换与控制工程技术研究中心(湖南大学), 长沙 410082,南京南瑞集团水利水电技术分公司, 南京 210003,国家电能变换与控制工程技术研究中心(湖南大学), 长沙 410082,长沙理工大学电气与信息工程学院, 长沙 410004,国家电能变换与控制工程技术研究中心(湖南大学), 长沙 410082 |
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| 基金项目： | 国家自然科学基金资助项目（51377051，51707014）；湖南省教育厅资助科研项目（17C0040） |
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| 摘 要： | 双馈风机DFIG（doubly-fed induction generator）因其对电网故障的敏感性，其故障穿越运行能力成为研究热点。为了提高DFIG的故障穿越能力，采用一种适用于DFIG的多功能串联补偿器MFSC（multifunctional series compensator）。MFSC连接于风机定子和并网点之间，可根据电网电压发生故障的不同程度，工作在动态电压补偿DVC（dynamic voltage compensation）和限流两种模式下，补偿跌落电网电压和限制风机电流突升。通过分析电网故障下的DFIG特性，给出了MFSC功能实现的数学模型；重点介绍了MFSC的不同功能控制策略和多模式切换流程。采用MATLAB软件建立了仿真系统，仿真结果验证了MFSC实现DFIG故障穿越的可行性和有效性。
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| 关 键 词： | 双馈感应发电机 故障穿越 多功能 串联补偿器 |
| 收稿时间： | 2017/7/17 0:00:00 |
| 修稿时间： | 2018/12/14 0:00:00 |
Multi-functional Series Compensator Suitable for Doubly-fed Induction Generator Fault Ride Through |
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| TU Chunming,YANG Jie,WU Ning,GUO Qi,JIANG Fei and XIONG Zhuo.Multi-functional Series Compensator Suitable for Doubly-fed Induction Generator Fault Ride Through[J].Journal of power supply,2019,17(4):112-121. |
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| Authors: | TU Chunming YANG Jie WU Ning GUO Qi JIANG Fei and XIONG Zhuo |
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| Affiliation: | National Electric Power Conversion Control Engineering Technology Research Center, Hunan University, Changsha 410082, China,National Electric Power Conversion Control Engineering Technology Research Center, Hunan University, Changsha 410082, China,NARI Hydro Water Technologies Inc, Nanjing 210003, China,National Electric Power Conversion Control Engineering Technology Research Center, Hunan University, Changsha 410082, China,School of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410004, China and National Electric Power Conversion Control Engineering Technology Research Center, Hunan University, Changsha 410082, China |
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| Abstract: | The fault ride through capability of a doubly-fed induction generator(DFIG) has become a hot spot bec-ause of its sensitivity to grid failures. To enhance its fault ride through capability, a multi-functional series compensator(MFSC) suitable for DFIG is adopted. The MFSC is connected between the fan stator and connection points, and it can operate in either dynamic voltage compensation(DVC) or current limiting mode according to varying degrees of grid voltage failure, compensating for grid voltage drop and limiting the rise of fan current. Through the analysis of characteristics of DFIG under grid fault, the mathematic models of MFSC functions are established. Especially, the control strategies for different functions of MFSC and the switching process between different modes are introduced. Finally, the validity and effectiveness of MFSC in realizing DFIG fault ride through are verified by simulation results. |
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| Keywords: | doubly-fed induction generator (DFIG) fault ride through multi-function series compensator |
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