智能电网
智能電網
지능전망
Smart Grid
2014年
3期
6-11
,共6页
智能变电站%安全风险管控%继电保护%检修作业
智能變電站%安全風險管控%繼電保護%檢脩作業
지능변전참%안전풍험관공%계전보호%검수작업
smart substation%safety risk control%relay protection%maintenance activity
智能变电站的继电保护二次回路由直观具象的二次接线转变为不直观的抽象网络数据流，其继电保护检修作业安全风险与常规变电站有较大差异，制定风险管控策略时必须考虑智能变电站的检修机制。基于专家调查法辨识智能变电站继电保护检修作业的安全风险，采用百分制作业风险评估法对辨识出的安全风险进行评估、评价，提出相应的安全风险管控措施，并基于班组安全承载力分析选择符合安全风险等级的继电保护检修班组。通过220 kV云会变继电保护检修工作验证了该智能变电站继电保护检修作业安全风险管控策略的有效性和可靠性。
智能變電站的繼電保護二次迴路由直觀具象的二次接線轉變為不直觀的抽象網絡數據流，其繼電保護檢脩作業安全風險與常規變電站有較大差異，製定風險管控策略時必鬚攷慮智能變電站的檢脩機製。基于專傢調查法辨識智能變電站繼電保護檢脩作業的安全風險，採用百分製作業風險評估法對辨識齣的安全風險進行評估、評價，提齣相應的安全風險管控措施，併基于班組安全承載力分析選擇符閤安全風險等級的繼電保護檢脩班組。通過220 kV雲會變繼電保護檢脩工作驗證瞭該智能變電站繼電保護檢脩作業安全風險管控策略的有效性和可靠性。
지능변전참적계전보호이차회로유직관구상적이차접선전변위불직관적추상망락수거류，기계전보호검수작업안전풍험여상규변전참유교대차이，제정풍험관공책략시필수고필지능변전참적검수궤제。기우전가조사법변식지능변전참계전보호검수작업적안전풍험，채용백분제작업풍험평고법대변식출적안전풍험진행평고、평개，제출상응적안전풍험관공조시，병기우반조안전승재력분석선택부합안전풍험등급적계전보호검수반조。통과220 kV운회변계전보호검수공작험증료해지능변전참계전보호검수작업안전풍험관공책략적유효성화가고성。
The intuitive secondary circuits of relay protection are changed into abstract data streams in smart substation. Therefore, the safety risk of relay protection maintenance activity in smart substation has great difference from that in traditional substation. Maintenance mechanism should be considered when making the safety risk control scheme. The safety risks of relay protection maintenance activity were identified by the expert investigation method, assessed and evaluated by the centesimal likelihood exposure consequence (LEC) risk assessment method. Based on the safety bearing capacity analysis, maintenance team was chosen to meet the requirement of safety risk level. Safety risk control scheme of relay protection maintenance activity in smart substation was proposed and proved by the relay protection maintenance activity in 220 kV Yunhui substation.
