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计及损耗的双馈感应风力发电机高电压穿越控制策略
引用本文:孙晓艳,,高 阳,彭 力.计及损耗的双馈感应风力发电机高电压穿越控制策略[J].陕西电力,2020,0(12):33-39.
作者姓名:孙晓艳    高 阳  彭 力
作者单位:1. 江苏大学 无锡机电学院,江苏 无锡 214121; 2. 无锡职业技术学院 控制技术分院,江苏 无锡 214121;3. 天津国投津能发电有限公司,天津 300480; 4. 江南大学 物联网工程学院,江苏 无锡 214028
摘    要:利用换向原理分析其电磁暂态特性,在此基础上,对DFIG输出无功功率与其铜损耗的解析关系进行了理论分析,推导出了使铜损耗最低的DFIG输出无功功率最优参考值。同时,转子的瞬时功率补偿分量减小了DC总线电压的波动,从而减少了转换器的功率损耗。由此,提出了考虑DFIG铜损和转换器损耗的DFIG高电压穿越控制策略。仿真结果表明,该控制策略可以在保证DFIG高电压穿越能力的同时降低DFIG铜损耗与换流器损耗,并具有较好的暂态特性。

关 键 词:利用换向原理分析其电磁暂态特性  在此基础上  对DFIG输出无功功率与其铜损耗的解析关系进行了理论分析  推导出了使铜损耗最低的DFIG输出无功功率最优参考值。同时  转子的瞬时功率补偿分量减小了DC总线电压的波动  从而减少了转换器的功率损耗。由此  提出了考虑DFIG铜损和转换器损耗的DFIG高电压穿越控制策略。仿真结果表明  该控制策略可以在保证DFIG高电压穿越能力的同时降低DFIG铜损耗与换流器损耗  并具有较好的暂态特性。

High Voltage Ride Through Control Strategy for Doubly-fed Induction Generator Considering Loss
SUN Xiaoyan,' target="_blank" rel="external">,GAO Yang,PENG LI.High Voltage Ride Through Control Strategy for Doubly-fed Induction Generator Considering Loss[J].Shanxi Electric Power,2020,0(12):33-39.
Authors:SUN Xiaoyan  " target="_blank">' target="_blank" rel="external">  GAO Yang  PENG LI
Affiliation:1. Wuxi Institute of Mechanical and Electrical Engineering, Jiangsu University, Wuxi 214121, China; 2. Control Technology Branch of Wuxi Vocational and Technical College, Wuxi 214121, China; 3. Tianjin State Investment Jinneng Power Generation Co., Ltd., Tianjin 300480, China; 4. School of Internet of Things Engineering, Jiangnan University, Wuxi 214028, China
Abstract:The paper analyzes the electromagnetic transient characteristics with commutation principle, based on which a theoretical analysis on the analytical relationship between the reactive power of DFIG and its copper loss is carried out, and the optimal reference value for the reactive power of DFIG with the lowest copper loss is deduced. Meanwhile, the instantaneous power compensation component for rotor reduces the fluctuation of DC bus voltage, thus reducing the power loss of converter. Therefore,the paper proposes a high voltage ride through control strategy for DFIG with the consideration of the copper loss from DFIG and converter loss. Simulation results show that this control strategy can ensure the high voltage ride through capability of DFIG while reducing the copper loss from DFIG and the converter loss, and has good transient characteristics.
Keywords:DFIG  high voltage ride through  power loss  loss optimization  converter
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