摘  要：隐极式永磁同步电机采用正弦波电流控制方案实现速度闭环控制时，一般采用直轴电流指令等于零的控制方法，通过控制交轴电流来实现对转矩和转速的控制，因此需要电流测量传感器，调理电路以及AD转换器，增加了驱动控制系统的硬件成本。该文从隐极式永磁同步电机的数学模型出发，提出了直轴电压指令值等于零的新型控制策略，该控制策略可以实现隐极式永磁同步电机的速度环无电流传感器矢量控制，并在基于TMS320F2808 DSP的电机驱动控制系统中得到了实验验证和应用。使用结果表明，应用该控制策略的隐极式永磁同步电机速度环控制具有运行平稳，电流噪声小，系统实现成本低等优点。
关键词：隐极式；永磁同步电机；无电流传感器；调速控制；矢量控制

Abstract: The traditional speed loop vector control of surfaced mounted PMSM is based on zero d axia current reference and q axia current for torque and speed regulation.The method needs hardware cost of current sensors and related conditioning circuits and ADC.In this paper,a novel control strategy with zero d axis voltage reference was proposed based on the mathematic model of surfaced mounted PMSM.The newly introduced algorithm can implement speed loop vector control of PMSM without current sensor any more.The algorithm has been verified on a PMSM control platform based on TMS320F2808 DSP.The experimental and application results show that the proposed strategy has the advantages of motor running quietly with low noise and low cost.
Key Words: Surfaced mounted；PMSM；Current sensorless；Speed loop；Vector control