基于模糊控制的内置式永磁同步电机弱磁调速算法

摘要

For the vector control system of IPMSM,this paper proposed a new flux-weakening control strategy based on fuzzy controller,which was put forward to analyze the IPMSM torque component of current and the rotor speed and then output direct axis component of current.The fuzzy controller was designed by the use of Matlab GUI toolbox.The simulation results in Simulink environment verify the effectiveness of fluxweakening and expanding the range of speed regulation,and show that the system has a good dynamic performance.%针对内置式永磁同步电机矢量控制系统提出了一种新的弱磁控制策略,通过构建模糊控制器分析内置式永磁同步电机运行时的电流转矩分量和转速反馈量,得到电机直轴电流弱磁分量.运用Matlab GUI工具箱设计了模糊控制器,并在Simulink中对基于模糊控制的矢量控制系统进行了仿真,结果表明电机弱磁效果明显、调速范围得到有效拓宽,且系统具有较好的动态性能.