异步电机磁路非线性及定子磁场定向转差控制  

Nonlinear Magnetic Circuit Model and Stator Flux Oriented Slip Control Systems of Induction Motors

作　　者：阮毅[1] 沈颉瑞[1] 张晓华[1] 

机构地区：[1]上海大学,上海200072

出　　处：《电力电子技术》2002年第5期1-4,共4页Power Electronics

基　　金：国家自然科学基金资助项目 (5 98770 13)

摘　　要：在分析磁路非线性对定子磁链影响的基础上 ,采用定子磁场定向的方法 ,将控制系统对电机参数的直接依赖性降到最低程度。详细介绍了基于动态模型的定子磁场定向转差控制 ,通过定子直轴电势和转差分别控制定子磁链幅值和定子电流转矩分量变化率 ,以达到良好的控制效果。The influence of nonlinear magnetic circuit on stator flux is analyzed in this paper, and stator flux oriented control is employed to minimize the direct dependence of control system on motor parameters. Furthermore, the paper presents a stator flux oriented slip control scheme based on the dynamic motor model. The performance of the system can be improved effectively by controlling the differential of the stator flux amplitude and the torque component of stator current via d axis voltage and slip respectively.

关 键 词：异步电机 磁路 非线性 定子磁场定向 转差控制 

分 类 号：TM343[电气工程—电机]