This paper researchs the principle of three - phase voltage - source reversible pwm inverter . the converter based on the intelligent power module ( ipm ) is designed 文章分析了三相电压型可逆pwm变流器的工作原理,设计了以ipm智能型功率模块为中心的三相可逆pwm变流器。
This dissertation focuses on the engineering design and realization of high power three - phase voltage source rectifier ( vsr ) with emphasis on the control technique 本论文侧重于三相电压源型pwm整流器及其控制系统的工程设计与实现,以提供一种较为实用的控制器设计与选取方法。
Based on classical phase voltage model , a line voltage model is derived and then the phase current model is obtained . beside , the solution for this novel mathematical model is also given 本文基于经典的相电压模型,导出线电压模型,然后推出相电流模型,并给出相电流模型解的表达式。
The speed - independent position function of the rotor was given by analyzing the phase current and phase voltage of the permenent magnet brushless dc motor , using the powerful operation function of dsp 利用dsp的强大运算功能,通过分析永磁无刷直流电动机的相电压与相电流给出转子速度无关位置函数。
The design adopts ac sample method to get 3 - phase voltage and current samples . the design computes three basic electric parameters according the sample values and monitors the voltage and current of pumping machine with keyboard and lcd 对抽油机工作电压、电流进行数据采集,用方均根值法由交流采样值计算三个基本电参数,并通过lcd和键盘进行随时的监测。