考虑故障传播的变压器机会维修模型

发布时间：2018-08-18 12:50

【摘要】：在电力系统运行过程中,变压器运行工况复杂,多种故障模式共存,某一故障发生后,若处理不当,可能引起故障传播与扩散,对系统运行效益带来不利影响。为揭示这一现象对系统状态检修决策的影响,建立考虑故障传播的变压器机会维修模型。该模型从变压器内部故障传播机理出发,给出变压器状态转移过程。在此基础上,为防止变压器局部故障扩散成重大安全事故,在对某一故障检修时对其他故障进行机会维修,给出随检修策略变动的系统检修风险和系统故障风险的量化表达,并以二者之和最小为目标,计及系统状态检修约束条件,完成变压器机会维修的建模。算例分析表明,该研究是可行、有效的。
[Abstract]:In the process of power system operation, the operation condition of transformer is complex, and many kinds of fault modes coexist. If a fault is not handled properly, it may cause the spread and spread of the fault, which will have a negative impact on the operating efficiency of the system. In order to reveal the influence of this phenomenon on the decision of system condition maintenance, an opportunistic maintenance model of transformer considering fault propagation is established. Based on the internal fault propagation mechanism of transformer, the state transition process of transformer is given in this model. On this basis, in order to prevent the transformer local fault from spreading into a major safety accident, the opportunity maintenance of other faults is carried out when one fault is overhauled, and the quantitative expressions of the system maintenance risk and the system fault risk that vary with the maintenance strategy are given. Taking the minimum sum of the two as the goal and considering the constraint conditions of system condition maintenance, the modeling of transformer opportunity maintenance is completed. An example shows that the study is feasible and effective.
【作者单位】：电网智能化调度与控制教育部重点实验室(山东大学);
【基金】：国家电网公司科技项目(XT71-15-056) 国家自然科学基金资助项目(51477091) 国家重点基础研究发展计划(973计划)(2013CB228205)~~
【分类号】：TM41

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