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作 者:雷富坤 LEI Fukun(School of Mechanical and Electrical Engineering,Yunnan Vocational Institute of Energy Technology,Qujing 655001,China)
机构地区:[1]云南能源职业技术学院机械与电气工程学院,云南曲靖655001
出 处:《电工技术》2025年第2期109-113,119,共6页Electric Engineering
基 金:中国煤炭教育协会教育教学改革项目(编号ZMZB-20220011);云南省教育厅科学研究基金项目(编号2023J1832)。
摘 要:针对煤矿供电系统出现的越级跳闸现象,提出了一种基于面保护原理的智能分布式煤矿供电防越级跳闸系统。以面保护原理为理论基础,利用光纤通信通道传递GOOSE报文信息,使得上下级保护装置建立信号联系进行信息共享,同时利用矿用5G无线装置作为后备通信,提高保护装置之间信息交互传送的可靠性,具有链路异常自检、故障位置智能识别和故障零延时跳闸自动切除的功能,避免了出现因越级跳闸导致的停电事故扩大现象,提高了煤矿供电系统的安全可靠性。通过搭建系统防越级保护逻辑测试平台,测试结果验证了所设计系统保护逻辑的有效性和可靠性。Aiming at the phenomenon of override tripping in the coal mine power supply system,an intelligent distributed coal mine power supply anti override trip system based on the area-protection of principle is proposed.The system is based on the principle of area-protection and utilizes fiber optic communication channels to transmit GOOSE signals,enabling upper and lower level protection devices to establish signal connections for information sharing.At the same time,mining 5G wireless devices are used as backup communication to improve the reliability of information exchange and transmission between protection devices.It has the functions of link abnormal self-inspection of the line,intelligent identification of fault location,and automatic fault removal with zero delay tripping,achieving anti skip protection,which avoids the expansion of power failure accident caused by override trip,and improves the safety and reliability of coal mine power supply system.By building a test platform for anti-override protection logic,the test results verify the effectiveness and reliability of the designed system protection logic.
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