摘要
现代凸极同步电机转子阻尼绕组结构设计比较灵活,除通常对称等节距阻尼绕组外,还有对称不等节距绕组和不对称、但以二极电机为周期循环的阻尼绕组。该文以不对称、但以二极电机为周期循环的阻尼绕组的同步电机模型作为研究对象,对阻尼绕组按实际的网形电路选取回路,从派克方程出发,获得该模型的磁链方程和电压方程,经 dq0 变换及一些技巧性处理,导出运算电抗xd(s)和xq(s),然后经参数辩识,确定电机的直、交轴瞬态电抗和超瞬态电抗以及相应的时间常数。该文方法不但适用于不对称、但以二极电机为周期循环的阻尼绕组,也适用于等节距和不等节距的对称阻尼绕组。该文提供的是计算凸极同步电机暂态参数的一种新方法。
The design of damper windings in modern salient-pole synchronous machines is flexible. Besides symmetric damper windings with an equal pitch, there are symmetric damper windings with an unequal pitch, asymmetric damper windings repeated in every two poles. In this paper, asymmetric damper windings are explored and the actual circuit is used in analysis. Voltage and flux linkage is expressed by Park’s equations. The reactance xd(s) and xq(s) can be derived through dq0 transformation. Finally parameters including time constants and d- and q-axis parameters are identified. This method is suitable for both asymmetric damper windings repeated in every two poles and symmetric damper windings with or without an equal pitch. Asymmetric and symmetric damper windings are analyzed and the useful conclusions have been drawn.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第3期78-83,共6页
Proceedings of the CSEE
基金
国家自然科学基金资助项目(50077004)~~
关键词
阻尼绕组
凸极同步电机
电抗
磁链
转子
暂态
瞬态参数
不对称
参数辩识
电压方程
Electric machinery
Salient-pole synchronous machine
Asymmetrical damper winding
Transient parameter
Subtransient parameter
