电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
4期
92-97
,共6页
袁鹏%杨红旗%马韬韬%田春筝
袁鵬%楊紅旂%馬韜韜%田春箏
원붕%양홍기%마도도%전춘쟁
设备状态评估%故障假设%多级流模型(MFM)%判断逻辑%相似度
設備狀態評估%故障假設%多級流模型(MFM)%判斷邏輯%相似度
설비상태평고%고장가설%다급류모형(MFM)%판단라집%상사도
equipment status evaluation%fault hypothesis%MFM%judgement logic%similarity
电网非正常运行情况下在短时间内会产生大量的报警信息，快速、准确、全面地对这些信息进行处理对调度员辅助决策具有重要意义。设备故障是引起电网扰动或故障的根本原因，基于此，提出一种新的智能报警方法。首先对设备进行状态评估，通过计算历史运行风险、评价健康状态，获取合理排序的假设故障设备集合。然后，建立电网的MFM模型，用该模型进行假设验证，通过比较相似度得到判断结果。最后通过IEEE标准9节点系统的仿真模拟，初步验证了该方法的准确性和时效性，为工程中的实际应用提供了良好借鉴。
電網非正常運行情況下在短時間內會產生大量的報警信息，快速、準確、全麵地對這些信息進行處理對調度員輔助決策具有重要意義。設備故障是引起電網擾動或故障的根本原因，基于此，提齣一種新的智能報警方法。首先對設備進行狀態評估，通過計算歷史運行風險、評價健康狀態，穫取閤理排序的假設故障設備集閤。然後，建立電網的MFM模型，用該模型進行假設驗證，通過比較相似度得到判斷結果。最後通過IEEE標準9節點繫統的倣真模擬，初步驗證瞭該方法的準確性和時效性，為工程中的實際應用提供瞭良好藉鑒。
전망비정상운행정황하재단시간내회산생대량적보경신식，쾌속、준학、전면지대저사신식진행처리대조도원보조결책구유중요의의。설비고장시인기전망우동혹고장적근본원인，기우차，제출일충신적지능보경방법。수선대설비진행상태평고，통과계산역사운행풍험、평개건강상태，획취합리배서적가설고장설비집합。연후，건립전망적MFM모형，용해모형진행가설험증，통과비교상사도득도판단결과。최후통과IEEE표준9절점계통적방진모의，초보험증료해방법적준학성화시효성，위공정중적실제응용제공료량호차감。
When power system operates under abnormal conditions, a large number of alarms will be received by EMS. A fast, correct and comprehensive alarm-processing system is of great importance to help the operators make necessary decisions. Equipment fault is the essential course of power system disturbance and fault. Based on this, this paper brings up a new smart alarm method. First, equipment status evaluation is done online. Thus, fault hypothesis set is obtained by calculating equipment history operation risk and judging health status. Then, all the hypothesis is checked by multi-level flow model (MFM) which has been built before. The final answer comes out after comparing similarities between the hypothesis and the fact. Simulation results of the standard IEEE 9-bus system shows that the proposed method is doing well in both accuracy and speed and has bright future prospect in the alarm-processing field.
