无轴承异步电机气隙磁场定向的优化控制  

Air-Gap-Flux Orientated Optimized Control of Bearingless Asynchronous Motor

作　　者：郑静文[1] 刘贤兴[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《电机与控制应用》2011年第6期15-20,共6页Electric machines & control application

基　　金：江苏省自然科学基金(BK2008233);博士点基金(20103227110011)

摘　　要：针对无轴承异步电机气隙磁场定向控制中转子电阻变化导致磁场定向不准确,影响转子稳定悬浮的问题,研究了基于悬浮力控制环的转子电阻在线辨识技术,提出具有转子电阻在线辨识的无轴承异步电机气隙磁场定向优化控制策略。采用模糊控制理论,设计模糊PI速度控制器,以模糊控制器的输出对PI控制器参数进行修正,进一步改善系统的动、静态性能。仿真结果表明了所提出的气隙磁场定向优化控制算法的有效性。To solve the problem of unstable suspension of rotor suffer from the influence of rotor resistance variation under air-gap-flux orientated control system of the bearingless asynchronous motors,a rotor resistance online identification technology based on the suspension control loop was researched,and the air-gap-flux orientated optimized control strategy basisd on rotor resistance online identification was proposed.To further improve the static and dynamic system performance,a fuzzy PI speed controller based on fuzzy control theory was designed to revise the parameter of PI controller.The simulation results showed the efficiency of the proposed air-gap-flux orientated optimized control strategy.

关 键 词：无轴承异步电机 在线辨识 气隙磁场定向 模糊控制 

分 类 号：TM301.2[电气工程—电机]