内蒙古电力技术
內矇古電力技術
내몽고전력기술
INNER MONGOLIA ELECTRIC POWER
2014年
5期
11-15
,共5页
电网%一次设备%状态检修辅助决策%风险评估%定量计算
電網%一次設備%狀態檢脩輔助決策%風險評估%定量計算
전망%일차설비%상태검수보조결책%풍험평고%정량계산
grid%primary equipment%status maintenance of aid decision%risk assessment%quantitative calculation
电网一次设备风险评估结论是状态检修辅助决策中的一个重要依据。传统风险评估方法对电气元件在电网中的位置重要性（系统枢纽变电站、地区重要变电站和一般变电站）进行粗略分类定级，没有基于电网潮流的定量计算分析，也未考虑元件检修对电网造成的损失影响，对电力系统元件检修决策难以定量指导。在弥补传统风险评估方法不足的基础上，提出了基于电网安全分析的电网一次设备风险定量评估方法，该方法主要对元件故障后电网稳定情况、减供负荷值等指标进行分析，根据各指标值对电网不同运行方式下一次设备故障的风险损失进行计算，风险损失以货币形式给出。该方法根据设备运行与检修存在风险的比值结果，指导设备状态检修工作。通过实例计算，结果表明改进算法能够更准确地反映设备在电网中的运行状态，弥补了传统评估方法的不足。
電網一次設備風險評估結論是狀態檢脩輔助決策中的一箇重要依據。傳統風險評估方法對電氣元件在電網中的位置重要性（繫統樞紐變電站、地區重要變電站和一般變電站）進行粗略分類定級，沒有基于電網潮流的定量計算分析，也未攷慮元件檢脩對電網造成的損失影響，對電力繫統元件檢脩決策難以定量指導。在瀰補傳統風險評估方法不足的基礎上，提齣瞭基于電網安全分析的電網一次設備風險定量評估方法，該方法主要對元件故障後電網穩定情況、減供負荷值等指標進行分析，根據各指標值對電網不同運行方式下一次設備故障的風險損失進行計算，風險損失以貨幣形式給齣。該方法根據設備運行與檢脩存在風險的比值結果，指導設備狀態檢脩工作。通過實例計算，結果錶明改進算法能夠更準確地反映設備在電網中的運行狀態，瀰補瞭傳統評估方法的不足。
전망일차설비풍험평고결론시상태검수보조결책중적일개중요의거。전통풍험평고방법대전기원건재전망중적위치중요성（계통추뉴변전참、지구중요변전참화일반변전참）진행조략분류정급，몰유기우전망조류적정량계산분석，야미고필원건검수대전망조성적손실영향，대전력계통원건검수결책난이정량지도。재미보전통풍험평고방법불족적기출상，제출료기우전망안전분석적전망일차설비풍험정량평고방법，해방법주요대원건고장후전망은정정황、감공부하치등지표진행분석，근거각지표치대전망불동운행방식하일차설비고장적풍험손실진행계산，풍험손실이화폐형식급출。해방법근거설비운행여검수존재풍험적비치결과，지도설비상태검수공작。통과실례계산，결과표명개진산법능구경준학지반영설비재전망중적운행상태，미보료전통평고방법적불족。
The risk assessment conclusion of grid primary equipments was the important basis in assistant decision-making system of status maintenance. The traditional risk assessment methods only did grading roughly to the position importance of electrical components in the grid, did not conduct quantitative analysis based on grid power flow, and did not consider the influence of maintenance lost to the grid, it was difficult to direct the decision in element maintenance. On the basis of making up the traditional method deficiency, proposed a quantitative risk assessment method of the primary equipments based on the safety analysis, which could conduct the quantitative analysis of the grid stability and load shedding amount while the element failures, according to risk lost of each index value during the different running conditions, gave the risk lost as the type of currency. This method could direct the status maintenance according to the ratio of repair and non-repair. Through the example calculation, the result showed that the improved calculation method could reflect the real running status of equipments more accurately, and made up the shortcomings of the traditional methods.
