并网双馈发电机电网电压定向励磁控制的研究.pdf

第23 卷 第8 期 中 国 电 机 工 程 学 报 Vol.23 No.8 Aug. 2003 2003 年8 月 Proceedings of the CSEE ©2003 Chin.Soc.for Elec.Eng. 文章编号：0258-8013 （2003 ）08-0159-04 中图分类号：TM301.2 文献标识码：A 学科分类号：470·4024 并网双馈发电机电网电压定向励磁控制的研究 李 辉，杨顺昌，廖 勇 （重庆大学电气工程学院，重庆400044 ） STUDIES ON EXCITATION CONTROL OF POWER SYSTEM VOLTAGE ORIENTED FOR DOUBLY FED GENERATORS CONNECTED TO AN INFINITE BUS LI Hui, YANG Shun-chang, LIAO Yong （College of Electrical Engineering, Chongqing University, Chongqing 400044, China ） ABSTRACT: Based on the analyses of the classical vector 类似于绕线式感应电机，定子三相绕组接工频电网， control of doubly fed generators connected to an infinite bus, a 通过静止变频器给转子绕组提供低频交流励磁，可 excitation control strategy of the power system voltage oriented 实现发电机有功、无功和转速的独立调节。该发电 is presented in this paper. Using with the control strategy, the 机具有良好的稳定性和较强的进相运行能力；具有 stator currents, power system voltage and rotor position signals 原动机转速变化情况下实现定子恒频的特性，即变 are only required. It is unnecessary to get the precision and real-time and coherence of measurement between the stator and 速恒频的发电能力，在风力发电、抽水蓄能，提高 rotor electric values, so that the practical control system of 电力系统稳定性等领域有着广泛的应用前景，正逐 doubly fed generators can be simplified. The steady state [1] 步受到人们的关注和重视 。 regulation characteristics among the stator active power and 目前已有不少文献应用矢量控制技术研究了 reactive power as well as the rotor speed , and the transient 双馈发电机的有功和无功的解耦控制。文献[1]采用 characteristics of a suddenly three phase shorted circuit of stator