大型变转速抽水蓄能发电电动机核心技术综述

为了有效地解决大型抽水蓄能电站水头/扬程变幅过大,提高机组的运行效率和经济性,研究和应用大型可变转速抽水蓄能发电电动机(简称蓄能DFIM)技术,必将成为今后水电领域技术创新的焦点。分析当前国内外蓄能DFIM在水电领域的发展现状,着重阐述了基本原理、运行特性及其关键部件的结构设计、交流励磁调速技术,以及需要进一步研究的问题,从而为我国未来蓄能DFIM的产业发展和新技术研发提供技术支持。

Summary of Key Technologies for Large-Scale Variable Speed Pumped Storage Power Motor-Generation

In order to effectively solve the issue for large-scale pumped storage power station head/pump head amplitude too large, improve the operating efficiency and the economy of the unit, research and application of variable speed pumped storage power motor-generation technology, that is, Alternating Current(AC) excited variable speed motor generator (hereinafter referred to as Double Fed Induction Machine, DFIM) technology, will become an important R & D focus on the new technology in future hydropower area. Summarizes the DFIM at home and abroad in the current development of the hydropower area, expatiate on its basic principles, operating characteristics, its key component structure design, AC excitation VarSpeed technology and the open issue to be studied, so as to offer the support for developing Chinas future industrial and R & D on new technology of the DFIM.