异步化同步发电机定子磁链的最小维观测和转子转速的估计  

Stator flux and speed estimation of asynchronized synchronous generator based on least-order observer

作　　者：应黎明[1] 陈允平[1] 廖清芬[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2006年第5期91-96,共6页Engineering Journal of Wuhan University

摘　　要：论述了定子磁链和转子转速的观测问题,分析比较了定子磁链的开环观测和闭环观测的优劣,构造了定子磁链最小维观测,并在DSP控制器中实现,仿真研究和试验研究表明,闭环观测对参数测量(给定)的偏差具有抑制作用.同时借助于李亚普诺夫稳定理论,给出了转子转速估计的递推模型.仿真和试验研究表明,该观测器有较好的收敛性.The observations of stator flux and rotor speed are analyzed in detail. After comparing openloop observer and closed-loop observer of stator flux, this paper adopts the least-order flux observer. The observer is implemented in a digital signal processing （DSP） excited device. Analysis and experimental researches indicate that the closed-loop observer can eliminate the original error of flux and re- strain the error arising from the deviation of machine＇s parameters. The rotor speed observer is constructed based on Lyapunov stability theory at the same time. The observer has good astringency proven by numerical analysis and experimental researches.

关 键 词：异步化同步发电机 磁链观测 转速估计 

分 类 号：TM303.3[电气工程—电机]