| 可变速抽水蓄能发电电动机非正弦励磁时间谐波分析及其影响 |
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| 引用本文： | 乔照威,孙玉田.可变速抽水蓄能发电电动机非正弦励磁时间谐波分析及其影响[J].大电机技术,2018(1):34-37,43. |
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| 作者姓名： | 乔照威 孙玉田 |
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| 作者单位： | 水力发电设备国家重点实验室(哈尔滨大电机研究所),哈尔滨 150040;哈尔滨电机厂有限责任公司,哈尔滨 150040
水力发电设备国家重点实验室(哈尔滨大电机研究所),哈尔滨,150040 |
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| 摘 要： | 可变速抽水蓄能发电电动机转子采用三相绕组,通过变频器实现交流励磁。可变速抽水蓄能发电电动机关键技术研究对国内企业实现自主研发具有重要意义。本文从可变速抽水蓄能发电电动机基本数学模型出发,建立了转子绕组非正弦励磁谐波分析模型,获得了该模型基本方程,在此基础上对谐波磁势进行了讨论分析,研究了时间谐波磁势对可变速抽水蓄能发电电动机运行性能的影响。分析表明,可变速抽水蓄能发电电动机设计时需要考虑非正弦励磁的影响,从而增强机组运行安全可靠性。
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| 关 键 词： | 发电电动机 可变速抽水蓄能 交流励磁 时间谐波 generator motor variable speed pumped storage AC excitation time harmonics |
Analysis of Time Harmonics on Variable Speed Pumped Storage Generator-Motor with Non-sinusoidal Excitation and Its Impact |
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| QIAO Zhaowei,SUN Yutian.Analysis of Time Harmonics on Variable Speed Pumped Storage Generator-Motor with Non-sinusoidal Excitation and Its Impact[J].Large Electric Machine and Hydraulic Turbine,2018(1):34-37,43. |
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| Authors: | QIAO Zhaowei SUN Yutian |
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| Abstract: | The variable speed pumped storage generator-motor (VSGM) has a cylindrical rotor with three-phase field windings which are fed by converter. Research on key technologies of VSGM has vast importance to self-developing of VSGM for domestic enterprises. Based on the basic mathematic model, this paper develops analytical models of VSGM with non-sinusoidal excitation. Further, the harmonics electromagnetic force (EMF) is studied and the effects of time harmonics EMF to VSGM, especially, is discussed, which shows that the effects of non-sinusoidal excitation should be considered for VSGM designing, to improve reliability and safety of VSGM. |
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