基于霍尔检测原理的大中型电机过电流保护研究

Over-Current Protection Based on the Hall Principle

本文针对大中型电机的过电流和速断保护,基于霍尔检测原理,采用霍尔元件AN3503和磁线圈设计了一种用于大中型电机过电流保护的检测装置。系统以AT89C51单片机为核心,实现了对大中型电机及时有效并且具有良好隔离效果的过电流保护。并且具有稳定可靠,简单易行,操作方便,成本低的特点。

This paper presents an over-current protection circuit of a motor by using a Hall sensor..A AT89C51 Microcomputer is used as the controller of the system.The system is well-isolated with the main loop. It is a low-cost system and is stable and reliable.