ACB电子控制器关键技术研究  

Research and Implementation of Key Technology of Air Circuit Breaker Electronic Controller

作　　者：张海跟 舒亮[1] 游颖敏[1,2] 陈冲 洪邦光[1] ZHANG Haigen;SHU Liang;YOU Yingmin;CHEN Chong;HONG Bangguang(The Engineering Technology Research Center of Low-Voltage Apparatus of Zhejiang Province,Wenzhou University,Wenzhou 325035,China;Province-ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]温州大学浙江省低压电器工程技术研究中心,浙江温州325035 [2]河北工业大学电磁场与电器可靠性省部共建重点实验室,天津300130

出　　处：《电器与能效管理技术》2020年第8期23-28,44,共7页Electrical & Energy Management Technology

基　　金：浙江省分析测试科技计划项目(2018C37068);浙江省公益技术研究计划(LGC20E070001);浙江省教育厅资助项目(Y201737046);温州市重大科技专项(2G2017002)。

摘　　要：提出一种双电源供电的断路器电子控制器电路,增加了系统可靠性。基于低功耗理念,设计了集高精度多路交流信号采集模块、磁隔离型RS 485通信模块、液晶显示与输入模块、中央控制器模块等,经测试系统功耗为0.79 W。相比常规产品最大低功耗提升71%,电流精度最大提升48%。系统采用多任务实时操作系统,通过多路采集模块将电流、电压信号采样,实时计算电流、电压值,具有过载、短路、瞬断、缺相、电流不平衡、电压不平衡等保护特性,同时考虑控制器的热记忆功能,实现了对三相电流信号进行12次谐波分析,MODBUS通信协议的支持。This paper proposed a dual power supply circuit to increase the system reliability of the electronic controller.Based on the low-power design concept from the aspects of device selection and software design,the electronic controller system is designed,including a high-accuracy multi-channel AC signal acquisition module,magnetically isolated RS 485 communication module,LCD display and input module,central controller module and so on.The power consumption of the tested system is 0.79 W,which is 71% higher than that of the conventional products,and the current accuracy is 48% higher.The system adopts a multi-tasking real-time operating system,and samples current and voltage signals through multiple acquisition modules to calculate current and voltage values in real time.Considering the controller’s thermal memory function,the 12-order harmonic analysis of the three-phase current signal is realized,and the MODBUS communication protocol is supported.

关 键 词：万能式断路器 反时限 瞬时保护 双电源供电 

分 类 号：TM561[电气工程—电器]