The Optimum Routine Maintenance Interval of Protection Based on Reliability Economic Analysis
The Optimum Routine Maintenance Interval of Protection Based on Reliability Economic Analysis
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发表时间：
2007
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通讯作者：
H. Wen
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作者：
H. Wen
保护是可修复的系统。合理的预防性维护是提高保护系统可靠性的有效途径。基于可靠性经济分析，对最优维修时间进行了研究。提出并定义了保护的年度经济损失、误动经济损失、误动经济损失和维护经济损失，并分析了其定量计算方法。建立了单保护的马尔可夫状态空间模型。然后以保护年经济损失最小为目标函数，推导出最优检修时间。该方法对不同类型的保护检修具有一定的指导意义。
Protection is repairable system. Reasonable preventive maintenance is effective to increase the reliability of protection system. The optimal maintenance time was studied based on reliability economics analysis. Annual economy losses, mis-operation economic loss, mil-operation economic loss and maintenance economic loss of protection were proposed and defined, and the method of calculating them quantitatively was analyzed. Markov state space model of single protection was set up. Then, optimal maintenance time was derived by taking the minimum of annual economy losses of protection as target function. The proposed method is significative to different protection maintenance.