基于定点DSP的恒定V/F运算参数定标分析

Scaling Analyses of Constant V/F Operation Parameter Based on Fixed-point DSP

分析了定点DSP的定标问题,给出了常用的QX表示方法及其处理技巧。并以异步电机的恒定V/F速度闭环控制系统为例,对其运算参数进行恰当的定标与分析。实验结果表明用Q格式编写程序代码更加简洁、方便、实用。

The paper analyzes the scaling problem of fixed- point DSP and provides expression methodand disposal skill of Q format. An example of control system based on constant V/F and speed closed loop of asynchronous motor was presented to analyze the scaling of Operation Parameter. Experiment results demonstrate that using Q format to compile code is laconic, convenient and applied.