永磁同步电机的状态解耦控制研究

Research on state variables feedback decoupling technique for permanent magnet synchronous motor

针对永磁同步电机系统耦合问题,通过Park和Clarke坐标变换得到基于d-q轴坐标模型,建立了永磁同步电机的非线性状态方程数学模型。应用反馈解耦控制控制方法,实现了永磁同步电机相电流和相电压的解耦控制。仿真结果表明,状态反馈解耦控制方法有效地实现了电机相电压、相电流的解耦控制,且具有较好的动静态性能及灵活、方便特点。

Aiming at the permanent magnet synchronous machine （PMSM） coupling, this paper establishes its nonlinear mathematical model based on d-q axis after the Park and Clarke transformation. The principle of state variables feedback decoupling technique is applied to realize decoupling control of PMSM phase current and voltage. The simulation results indicate that the technique sloves the coupling problem with the effectiveness which is verified statical and dynamical, flexible and conveninet.