永磁同步电机的模型预测电流控制器研究

发布时间：2018-03-07 03:12

本文选题：交流永磁同步电机　切入点：电流控制　出处：《电工技术学报》2014年S1期 　论文类型：期刊论文

【摘要】：基于永磁同步电机(PMSM)在旋转坐标系下的数学模型,选择d轴电流增量和q轴电流增量构成状态变量,推导了交流永磁同步电机的增量式状态方程,对模型预测控制(MPC)用于永磁同步电机的电流控制进行了研究,提出了表贴式永磁同步电机(SPMSM)的模型预测电流控制算法,实现了对电流的前馈和反馈控制,可消除d轴和q轴电流的非线性耦合(运动耦合),改善电流控制的动态性能。仿真和实验结果表明,相比PI调节器电流控制,模型预测电流控制器具有更好的去耦合效果和更快的动态响应。
[Abstract]:Based on the mathematical model of permanent magnet synchronous motor (PMSM) in rotating coordinate system, the incremental state equation of AC permanent magnet synchronous motor is derived by selecting the increment of d axis current and Q axis current increment. The current control of permanent magnet synchronous motor (PMSM) using model predictive control (MPC) is studied. The model predictive current control algorithm of SPMSM is proposed. The feedforward and feedback control of current is realized. The nonlinear coupling between d axis and Q axis current can be eliminated, and the dynamic performance of current control can be improved. The model predicts that the current controller has better decoupling effect and faster dynamic response.
【作者单位】：冶金自动化研究设计院伺服系统研究设计所;冶金自动化研究设计院;
【分类号】：TM341

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