可变速抽水蓄能发电电动机功率特性分析  

Power Performance Analysis of Variable Speed Pumped Storage Generator Motor

作　　者：乔照威 孙玉田[1] 戈宝军[3] QIAO Zhaowei;SUN Yutian;GE Baojun(State Key Laboratory of Hydro-power Equipment(HILEM),Harbin 150040,China;Harbin Electric Machinery Company Limited,Harbin 150040,China;Harbin University of Science and Technology,Harbin 150080,China)

机构地区：[1]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 [2]哈尔滨电机厂有限责任公司产品设计部,哈尔滨150040 [3]哈尔滨理工大学,哈尔滨150080

出　　处：《大电机技术》2022年第3期8-13,共6页Large Electric Machine and Hydraulic Turbine

基　　金：黑龙江省自然科学基金资助项目(TD2021E002)。

摘　　要：可变速抽水蓄能发电电动机采用双馈电机,兼具异步电机与同步电机双重电磁特性。本文首先提出了适用于可变速抽水蓄能发电电动机的数学模型,继而对其建立了电磁功率及电磁转矩表达式,并以此分析了可变速抽水蓄能发电电动机兼具异步特性与同步特性的运行机理。在此基础上,进一步探讨了可变速抽水蓄能发电电动机静态稳定问题,提出了静态稳定运行的必要条件。最后,提出了可变速抽水蓄能发电电动机有功功率及无功功率分析模型,揭示了有功功率及无功功率随励磁电压的变化规律。The double-fed machine is adopted as variable speed pumped-storage generator-motor(VSGM), which has performance both of asynchronous machine and synchronous machine. A new mathematical model is presented for VSGM, and equations for electromagnetic power and torque are developed. Based on these, the mechanism of VSGM with performance both of asynchronous machine and synchronous machine is analyzed. Further, the static stability problem is discussed and the necessary condition for stable operation of VSGM is presented. Last, analysis models of active and reactive power are built, and the change regulation of active and reactive power with excitation voltage is drawn out.

关 键 词：可变速 发电电动机 交流励磁 抽水蓄能 双馈 

分 类 号：TM622[电气工程—电力系统及自动化]