矢量控制中定点DSP软件定标分析

Fixed-point DSP's Scale Operation in Induction Motor Vector Control

本文分析了定点DSP在异步电机矢量控制应用中的定标问题 ,提出了一种新的 16位和 32位定标表示方案 ,并给出了一种统一定标的方案。最后结合矢量控制中的电流测量、转速调节以及电流模型 ,分析了定点运算的具体编程实现。与传统的 15位定标相比 ,该方案在定标处理中能够获得更大的精度 。

The paper analyzes the problem of fixed-point DSP's scale operation in vector control.16 bits and 32 bits scale expression are provided with uniform plan. What is more, scale realization in vector control is anlysised such as current sample, speed regulation and current model. Compared with 15 bits scale expression, it can get higher precision.