永磁同步电机无位置传感器运行场路耦合分析

为精确设计基于凸极跟踪的无位置传感器控制系统，在分析高频电压信号激励下永磁同步电机数学模型的基础上，提出一种基于场路耦合法的永磁同步电机无位置传感器控制系统分析与设计新方法。该方法建立在永磁同步电机三维电磁场分析模型和基于转子磁场定向的无位置传感器控制系统模型上，通过场路耦合法进行协同仿真研究，仿真结果可精确反映无位置传感器运行性能和高频电压信号激励下永磁同步电机与控制系统的相互耦合特性。在此基础上建立了与仿真系统完全对应的实验系统，实验结果与仿真结果一致，表明该分析设计方法的正确性和可实现性。

Position Sensorless Operation of PMSM Using the Field-circuit Coupled Solution

On the basis of analyzing the mathematic model of high-frequency voltage excited permanent magnet synchronous motor (PMSM), a novel method using field- circuit coupled co-simulation was suggested to design the rotor saliency-tracking based position sensorless control system of the PMSM. The three dimensional electro-magnetic analysis model and the sensorless control system model based on the rotor field oriented control strategy were established to implement the co-simulation analysis by means of field-circuit coupled method. Simulation results can reflect the sensorless operation performance and the coupling characteristics between motor and control system . Based on theoretical study, an experimental system corresponding to the simulation system was established and the experimental result is in accordance with the simulation result. The validity and feasibility of the proposed design method are proved.