三相电机电流检测系统的设计及实现

摘要

为了方便对分布在各处的三相电机工作电流的相位进行检测，文章设计了一种分布式体系结构的电机检测系统。系统包括上位机和下位机2个部分。上位机程序采用Delphi语言编写，通过上位机向各个下位机发送命令，同时收集下位机发送来的数据并储存。下位机设备是以LPC2013微控制器为核心的数据采集设备，其软件部分以RT-Thread实时操作系统为基础进行设计，实现与上位机的通信、数据采集，得到电机工作电流和相位差。上位机与下位机设备的通信基于CAN总线。%To easily detect the current effective value and phase of three-phrase motor which distribute different place, the paper designs a distributed detecting system of three-phase motor. The system contains upper computer and lower computer. The upper computer is designed by applying the Delphi language, send common to lower computer and collect and save data. The lower computer is a acquisition equipment based on LPC2013, and the software which contains communication based on CAN bus, data acquisition and the calculation of current effective value and phase is based on RT-Thread real-time OS.