Maintenance management, as a key part of the asset management practices, plays a vital role in enhancing the reliability of the electricity distribution systems (EDS) where realizing a highly reliable EDS is being attributed higher and higher criticality in today's modern society. In this paper, a new approach is proposed to improve the reliability of EDS through optimal scheduling of preventive maintenance (PM) tasks and allocation of automatic switches. The suggested objective for optimal PM schedules and switch allocation is to minimize a combination of customer-based (system average interruption duration index and system average interruption frequency index) and cost-based reliability indices. The total reliability cost includes those associated with the corrective maintenance actions, PM tasks, and automatic switch investments. The proposed approach is implemented in three different scenarios: 1) switch placement, 2) PM tasks scheduling and budget management, as well as 3) a joint switch and PM tasks decision making. The aforementioned scenarios are applied on a standard reliability test system (RBTS4) followed by multiple sensitivity analysis to further demonstrate the efficacy and performance of the proposed framework.

中文翻译：

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配备自动开关的配电系统的长期维护计划和预算


维护管理作为资产管理实践的关键部分，在提高配电系统（EDS）的可靠性方面发挥着至关重要的作用，在当今的现代社会中，实现高可靠性的EDS变得越来越重要。本文提出了一种通过预防性维护（PM）任务的优化调度和自动开关的分配来提高 EDS 可靠性的新方法。最佳 PM 计划和开关分配的建议目标是最大限度地减少基于客户的（系统平均中断持续时间指数和系统平均中断频率指数）和基于成本的可靠性指数的组合。总可靠性成本包括与纠正性维护操作、PM 任务和自动开关投资相关的成本。所提出的方法在三种不同的场景中实现：1）交换机放置，2）PM 任务调度和预算管理，以及 3）联合交换机和 PM 任务决策。上述场景应用于标准可靠性测试系统（RBTS4），然后进行多重敏感性分析，以进一步证明所提出框架的有效性和性能。