内置式永磁同步电机弱磁过渡时的解耦补偿控制

发布时间：2018-03-26 04:02

本文选题：永磁同步电机　切入点：弱磁过渡　出处：《电机与控制学报》2015年07期

【摘要】：针对内置式永磁同步电机(interior permanent magnet,IPM)在弱磁过渡时电流调节器瞬态饱和导致转速范围受限甚至失控的问题,提出了基于解耦电流控制和电压指令补偿的电流矢量控制算法,解除了电机高速运行时d-q轴电流交叉耦合的影响,使得控制规律趋于线性化,避免PI调节器输出不正常;当调节器饱和时,通过补偿电压指令使调节器迅速退出饱和状态,消除了转速调节失控现象。给出了判断电流调节器是否进入饱和的监视方法,实时决定是否有必要采取退饱和的措施,使得控制更具智能特点。在仿真结果的正确性基础上,通过台架测试进一步证实了所提出控制策略的有效性,提高了系统的稳定性并拓宽了电机的转速范围。
[Abstract]:In order to solve the problem that the transient saturation of current regulator leads to limited or even out of control speed range during the weak magnetic transition, a current vector control algorithm based on decoupling current control and voltage command compensation is proposed, which is based on decoupling current control and voltage command compensation. The control law is linearized to avoid the abnormal output of Pi regulator, and when the regulator is saturated, the regulator is rapidly exited from the saturation state by compensating voltage instruction, and the control law is linearized by the cross-coupling of d-q axis current when the motor is running at high speed, so as to avoid the abnormal output of Pi regulator. The monitoring method to judge whether the current regulator is saturated or not is given, and the measure of desaturation is determined in real time, which makes the control more intelligent. On the basis of the correctness of the simulation results, the control is more intelligent. The effectiveness of the proposed control strategy is further verified by the bench test, which improves the stability of the system and widens the speed range of the motor.
【作者单位】：哈尔滨理工大学电气与电子工程学院;哈尔滨工业大学航天学院;
【基金】：黑龙江省应用技术研究与开发计划项目(GB13A202)
【分类号】：TM341

【共引文献】