基于等劣化理论和设备风险的检修策略优化

发布时间：2018-04-09 04:02

本文选题：全生命周期成本　切入点：等劣化理论　出处：《电测与仪表》2017年05期

【摘要】：电力公司的重要任务是实现它的经济目标和社会责任。作为实现这些目标的最有前途的方法之一,资产管理受到了越来越多的重视。全寿命周期成本管理(LCCM)是资产评估中的一个非常有效的工具。为了使电力设备全寿命周期成本最优,针对目前关于设备检修策略的研究中存在着诸如忽略了设备检修对于设备故障率的影响以及设备在全寿命周期中可靠性在不断劣化的趋势等这类问题,本文将机械工程领域的设备等劣化理论引入到电力设备运行分析中,在此基础上,推导出了各检修周期内设备可靠度之间的关系,结合设备的风险定义以及役龄回退因子,建立了设备基于风险的检修策略优化模型。这种方法实质上是为了在设备自身价值和设备给系统带来的经济效益之间,在LCCM和设备检修之间,以及在电力系统的技术与管理之间寻求平衡点。最后文中结合一个具体算例,求得了最优检修间隔,并与传统的定期检修进行了简要的对比分析。
[Abstract]:The important task of electric power company is to realize its economic goal and social responsibility.As one of the most promising methods to achieve these goals, asset management has received more and more attention.Life cycle cost management (LCCM) is a very effective tool in asset assessment.In order to optimize the life cycle cost of power equipment,In view of the problems existing in the current research on equipment maintenance strategy, such as ignoring the influence of equipment maintenance on equipment failure rate and the tendency of equipment reliability deteriorating continuously in the whole life cycle, etc.In this paper, the theory of equipment deterioration in the field of mechanical engineering is introduced into the operation analysis of power equipment. On this basis, the relationship between the reliability of the equipment in each overhaul cycle is deduced, and the risk definition of the equipment and the retrograde factor of the service age are combined.A risk-based maintenance strategy optimization model is established.The purpose of this method is to find a balance between the value of the equipment itself and the economic benefits that the equipment brings to the system, between the LCCM and the maintenance of the equipment, and between the technology and management of the power system.Finally, with a concrete example, the optimal repair interval is obtained and compared with the traditional periodic maintenance.
【作者单位】：广东电网有限责任公司电力调度控制中心;武汉大学电气工程学院;
【分类号】：TM73

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