异步电动机定子磁链观测方法研究  

Study on the Observation Method for Flux Linkage of the Stator of Asynchronous Motor

作　　者：姬宣德[1] 魏红彬[2] 辛伊波[1] 

机构地区：[1]洛阳理工学院电气工程与自动化系,河南洛阳471023 [2]河南教育学院科研处,河南郑州450046

出　　处：《自动化仪表》2010年第10期19-21,31,共4页Process Automation Instrumentation

摘　　要：分析了传统异步电动定子磁链观测器——纯积分器的局限性,采用全阶闭环磁链状态观测器实现了定子磁链的观测,并提出一种简单方便的极点配置方法,完成了状态观测器的极点配置工作。理论分析和仿真结果表明,全阶闭环磁链状态观测器不但能够准确观测定子磁链,有效克服传统磁链观测器的固有缺陷,而且能够有效地抑制电机参数变化对磁链观测的影响。The limitation of the traditional flux linkage observer of the stator of asynchronous motor,the pure integrator is analyzed.By adopting full-order closed-loop flux linkage state observer,the flux linkage of the stator is implemented.In addition,a simple method of pole allocation is proposed for allocating the poles for state observer.The theoretical analysis and simulation result show that such method can accurately observes the flux linkage of the stator,and effectively overcome the inherent defects of traditional observer,and also suppresses the influence on flux linkage observation because of the parameters change of motor.

关 键 词：感应电动机 直接转矩控制 磁链观测 纯积分器 状态观测器 极点配置 

分 类 号：TM346[电气工程—电机]