说明：  PMSM 的 MTPA 控制，从控制原理上详细分析了公式法 MTPA 控制无法推出解析解的问题和曲线拟合法 MTPA 控制函数高阶运算复杂、占用硬件资源大的问题。为了得到一种可工程实现、计算简单的 MTPA 控制，本文以线性插值查表法为基础设计了 MTPA 控制算法
(The MTPA control of PMSM is analyzed in detail from the control principle. The problem that the formula method MTPA control can not deduce the analytic solution and the curve fitting method MTPA control function has complex high-order operation and occupies a large amount of hardware resources. In order to obtain a kind of MTPA control which can be realized in engineering and can be easily calculated, this paper designs the MTPA control algorithm based on the linear interpolation lookup table method.)