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State Diagram-Based Life Cycle Management Plans for Power Plant Components

机译：基于状态图的电厂组件生命周期管理计划

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摘要

Life cycle management (LCM) combines a set of technical and economic activities with the specific goal of improving the long-term economic value of an asset. An LCM plan helps to make operational decisions for a component over its life cycle. It typically consists of preventive maintenance scheduling, condition monitoring, inspection activities, replacement or refurbishment planning, and spares management. It is developed based on a study of component failure modes, operating history, maintenance practices, aging, spares, and obsolescence. Utility companies have predominantly developed LCM plans based on heuristic approaches. The existing methods do not accurately cover the impact of maintenance on equipment reliability and cost. A state diagram is developed to simulate the aging, inspection, maintenance, repair, failure, and overhaul cycle of a component throughout its lifetime. This diagram can help in deciding the optimal maintenance policy, and also quantify the impact of maintenance on reliability and cost. Probabilistic tools are also developed to help in the evaluation of an LCM plan and for further optimization.
机译：生命周期管理（LCM）结合了一系列技术和经济活动，其特定目标是提高资产的长期经济价值。 LCM计划有助于在组件的整个生命周期内做出操作决策。它通常包括预防性维护计划，状态监视，检查活动，更换或翻新计划以及备件管理。它是基于对组件故障模式，运行历史，维护实践，老化，备件和过时的研究而开发的。公用事业公司主要基于启发式方法制定了LCM计划。现有方法不能准确地涵盖维护对设备可靠性和成本的影响。开发状态图以模拟组件在整个生命周期内的老化，检查，维护，修理，故障和大修周期。该图可以帮助确定最佳的维护策略，还可以量化维护对可靠性和成本的影响。还开发了概率工具，以帮助评估LCM计划和进一步优化。

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