永磁型无轴承电机的设计与控制研究  

Study on design and control of permanent-magnet-type bearingless motor

作　　者：周媛[1] 贺益康[1] 年珩[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2006年第1期14-19,共6页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金资助项目(50477310);高等学校博士学科专项科研基金资助项目(20040335003);浙江省自然科学基金资助项目(502050)

摘　　要：为了深入研究永磁型无轴承电机的设计方法及控制策略,提出了计及定、转子定位偏心的悬浮力解析模型及该解析模型中悬浮绕组参数的设计方法.该方法基于永磁型无轴承电机悬浮力产生机理和电磁场有限元分析,进行电机设计,得到永磁型无轴承样机的系统参数.在此样机系统基础上,讨论了转矩控制子系统的转子磁场定向矢量控制、悬浮控制子系统的模糊自调整比例-积分-微分(PID)控制策略,并进行了悬浮运行实验,结果表明该设计参数与实际样机参数基本吻合,验证了该设计方法的正确可行性,该控制策略有效地解决了无轴承电机模型复杂、参数时变等实际因素的影响,保证了其运行控制的鲁棒性.An analytical model of levitation force considering the location eccentricity between the stator and rotor of the motor and A design method for the suspending winding parameters in this model were pro- posed, for studying the design method and control strategy of permanent-magnet-type bearingless motor （PMBLM）. Based on analysis of the creation of PMBLM levitation force and on finite element analysis （FEA）, the method was applied in the design of a prototype PMBLM system. According to the control requirement, the rotor field oriented control for torque control sub-system and the fuzzy self-adjusting Proportional-Integral-Differential （PID） control for levitation force control sub-system were discussed. The result of the suspension operation experiment the designed parameters are consistent with the practical sample, which verifying the design method is correct and feasible; and that the control strategy effectively weakens the influences of the complex motor model, the real-time changing parameters and some other practical factors and guarantees the robustness of the operation control.

关 键 词：永磁无轴承电机 悬浮绕组设计 悬浮力模型 模糊数控制 

分 类 号：TP302[自动化与计算机技术—计算机系统结构] TP351[自动化与计算机技术—计算机科学与技术]