大功率电动执行器相序保护系统的设计  

Design of Phase Sequence Protection System for High Power Electric Actuator

作　　者：吴宁胜[1] Wu Ningsheng(Zhejiang Business College,Hangzhou Zhejing,310053)

机构地区：[1]浙江商业职业技术学院,浙江杭州310053

出　　处：《电子测试》2020年第9期39-40,7,共3页Electronic Test

基　　金：浙江省教育厅科研资助项目(Y201635635)。

摘　　要：介绍了大功率电动执行器电源相序检测和电机缺相保护的方法,给出了基于AVR单片机设计的硬件电路和软件流程。通过光耦将正弦波相位变化转换为方波数字信号序列,利用单片机进行相序判断。保障大功率电动执行器在强干扰环境中安全可靠地运行。This paper introduces the methods of phase-sequence and phase-failure detection of high-power electric actuators,and gives the hardware circuit and software flow based on AVR MCU.The phase change of the sine wave is converted into digital signal sequence of a square wave through an optocoupler,and the MCU is used to judge the phase sequence.Ensure that high-power electric actuators operate safely and reliably in a strong interference environment.

关 键 词：电动执行器 相序检测 单片机 数字滤波 

分 类 号：TP215[自动化与计算机技术—检测技术与自动化装置]