集成电路与嵌入式系统2024，Vol.24Issue(3)：57-61,5.
基于物联网的系统差动保护方法实现
Implementation of system differential protection method based on internet of things
摘要
Abstract
This article introduces the protection and operational improvement of the Future Renewable Electric Energy Delivery and Man-agement System(FREEDM),which uses solid-state transformers to connect residential AC and DC microgrids to the distribution sys-tem,and uses fault isolation equipment to isolate faulty lines.A current differential protection scheme is proposed to detect faults in the FREEDM based microgrid network,this method uses phasor measurement units for data synchronization and minimizes measurement er-rors,and uses IoT technology and Wi-Fi communication solutions for data monitoring and interconnection between devices.Then,a simu-lated FREEDM system is used for testing,and different types and fault resistances of faults are applied at different locations to demon-strate the effectiveness of the proposed protection method in detecting fault states.The performance of the proposed method is investiga-ted using safety,reliability,and accuracy indicators.Finally,a prototype of the FREEDM system is designed,implemented,and tested using Proteus software simulator and laboratory.The results demonstrated the efficiency of the proposed protection scheme in detecting and isolating fault states in a fast,reliable,and accurate manner.In addition,the protection scheme achieved an accuracy of up to 98.825％for all faults.关键词
差动保护方案/微电网/故障检测/未来可再生电能传输与管理系统Key words
differential protection scheme/microgrid/fault detection/FREEDM system分类
信息技术与安全科学引用本文复制引用
崔益国..基于物联网的系统差动保护方法实现[J].集成电路与嵌入式系统,2024,24(3):57-61,5.基金项目
国家自然科学基金项目(61602531). （61602531）
