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Maintenance Strategy of Electric Power Transformer Considering Health State and Power Grid Risk
Author(s): 
Pages: 1-5
Year: Issue:  2
Journal: Guangxi Electric Power

Keyword:  电力变压器故障概率健康状态检修策略;
Abstract: 电力变压器是否可靠运行取决于其健康状态的好坏,不同部件及不同严重程度的缺陷会不同程度地影响变压器的故障概率;另一方面,不同缺陷的消除需要量化变压器退运对变电站供电可靠性影响并进行针对性的检修,从而保证检修策略的合理性.综合上述分析,提出一种变压器检修策略优化方法,该方法根据变压器实际巡检结果,判断变压器缺陷发生部位、类型和严重程度,并制定出针对性的检修方案;以检修周期内变电站和变压器的故障损失与检修损失最小为优化目标,构建变压器检修决策优化模型,对可选检修方案进行优选.最后以一个220 kV降压变电站变压器的检修决策为例,详细说明了该方法的具体实现过程,结果表明该方法能够合理安排检修策略,保证检修期间变电站的供电可靠性和检修的经济性.
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