作　　者： ; ;

机构地区： 北京科技大学

出　　处： 《中国电机工程学报》 2007年第15期21-27,共7页

摘　　要： 提出永磁同步电动机参考模型逆线性二次型(MR-ILQ)最优电流控制调速系统的结构、数学模型,设计最优电流控制调速系统的控制器,分析系统的稳定性和跟踪性能。绘制了MR-ILQ最优电流控制系统的根轨迹,给出保证系统电流控制最优性的增益调整参数的条件和保证系统实现电流准确跟踪的误差调整补偿器的取值规律。以内埋式永磁同步电动机为例。对系统进行了仿真研究,结果表明:系统对参数变化和负载扰动具有很强的鲁棒性,可以实现高精度的电流控制和速度控制;MR-ILQ最优电流控制调速系统的鲁棒性远远优于比例积分PI电流控制调速系统;给出的MR-ILQ最优电流控制增益调整参数和误差调整补偿器的理论确定方法与仿真试验相吻合。 It is presented that the structure and mathematic model of an optimal current control variable speed system of permanent magnet synchronous motor by the model referenceinverse linear quadratic（MR-ILQ） design method. The optimal controller of the current control variable speed system is designed. The stability and tracking ability are analysed. The root locus of optimal current control system by MR-ILQ are ploted. It is provided that the condition of gain regulation parameters to guarantee the optimality for the current control system and the design principles of error regulation compensators to guarantee the accurate current tracking. Take an interior permanent magnet synchronous motor for instance, system simulations have been carried out. From the results, it is evident that the system has a strong robust performance to the parameter variations and load disturbance. It can achieve the high accurate current control and speed control. By comparing with conventional proportional-integral（PI） control, the MR-ILQ control is excellent in both robust stability and robust tracking performance. It is coincident with simulations that the theory method to determine the parameters of error regulation compensators and gain regulators for the MR-ILQ optimal current control.

关 键 词： 参考模型逆线性二次型 设计方法 永磁同步电动机 渐近解耦 电流控制 鲁棒性

领　　域： [自动化与计算机技术] [自动化与计算机技术]