厦门大学学报（自然科学版）2018，Vol.57Issue(3)：420-424,5.DOI:10.6043/j.issn.0438-0479.201703033
基于真空继电器的选相分合闸控制系统的设计与实现
The Design and Implementation of Phase Selection Switchgear Controller Based on Vacuum Relay
摘要
Abstract
To reduce switch opening arcing and switch closing inrush currents of breaker in power system,we present a phase selec-tion switchgear control system of circuit breaker with the permanent magnetic mechanism.In this system,a second level driving mode of vacuum relay greatly reduces the mechanical switch action time interval discreteness.Meanwhile,it solves the problems of large mechanical switch action time interval discreteness in single-stage contactor driving mode and complex driving circuit in single-stage thyristor driving mode.The core of control system is STM32 microcontroller.By means of the current mutation capturing algorithm, it will be easy to capture the end moment of switch accurately.Then a mechanical switch action time interval can be computed. Hence,a switch prediction of next time leads to a proper action of split-phase switchgear based on stated switch angle.System experi-ments have been performed on circuit breaker with permanent magnetic mechanism under 35 kV.Switchgear phase angle error lies within less than ±3 degrees,which meets the accuracy requirement of phase selection switchgear.关键词
真空继电器/选相分合闸/单片机Key words
vacuum relay/phase selection switchgear/microcontroller分类
信息技术与安全科学引用本文复制引用
马向辉,林霞,李钷,薛文东,洪永强..基于真空继电器的选相分合闸控制系统的设计与实现[J].厦门大学学报（自然科学版）,2018,57(3):420-424,5.基金项目
福建省科技计划项目(2016H6022) （2016H6022）
