Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于风险评估和成本分析的变压器维修策略研究

来源:电工电气发布时间:2019-05-17 13:17 浏览次数:632
基于风险评估和成本分析的变压器维修策略研究
 
周博
(国网湖北省电力有限公司随州供电公司,湖北 随州 441300)
 
    摘 要:针对电力变压器检修管理中,单一的风险模型和成本模型不能同时考虑到安全性与经济性要求,提出一种基于风险评估和成本分析的维修策略。以风险理论为基础,结合设备故障概率和故障可能导致的资产及系统损失,评估变压器运行风险值;针对风险评估结果,通过引入ALARP 准则划分风险可接受等级,判断是否需要检修工作。对于经济性指标,利用全寿命成本理论对变压器寿命周期内各成本要素进行划分、量化计算,再以最小年金成本为判据确定设备现龄是否在其最佳寿命周期内,并在综合考虑电力变压器的运行风险与当前役龄的基础上,制定出兼具安全性与经济性的维修策略。实际案例表明,此维修策略可行。
    关键词:变压器;维修策略;风险评估;全寿命周期成本;ALARP 准则
    中图分类号:TM407     文献标识码:A     文章编号:1007-3175(2019)05-0012-05
 
Research on Transformer Maintenance Strategy Based on Risk Assessment and Cost Analysis
 
ZHOU Bo
(Suizhou Electric Company of State Grid Hubei Electric Power Co., Ltd, Suizhou 441300, China)
 
    Abstract: In the maintenance management of power transformers, considering that a single risk or cost model can’t take into account the safety and economic requirements, this paper proposed a maintenance strategy based on risk assessment and cost analysis. Based on the risk theory, the operational risk value of transformer was evaluated according to the equipment failure probability and the possible loss of assets and system. In allusion to the results of risk assessment, the ALARP criterion was adopted to classify the acceptable level of risk to determine whether the maintenance work was needed. For economic indicators, this paper divided and quantified those cost elements in the life cycle of transformer through life cycle cost theory, and the minimum cost was used as the criterion to judge whether the current service age of transformer was at its best in the life cycle. On the basis of comprehensively considering the operation risk of power transformer and its current service age, this paper worked out the maintenance strategy with both security and economy. The actual case shows the feasible of this maintenance strategy.
    Key words: transformer; maintenance strategy; risk assessment; life cycle cost; ALARP criterion
 
参考文献
[1] 王建,朱文兵,辜超,等. 基于健康指数的电力变压器状态评估[J]. 高压电器,2018,54(5):248-253.
[2] 田雨,张晗. 基于故障特征隶属函数的电网主设备风险评估方案研究与应用[J]. 高压电器,2017,53(5):146-153.
[3] 张镱议,廖瑞金,杨丽君,等. 综合考虑可靠性与经济性的电力变压器检修方案优选[J]. 电工技术学报,2014,29(11):191-195.
[4] 王茜. 基于输变电设备风险评估的维修决策[J].计算机与数字工程,2014,42(11):2099-2101.
[5] 何乐彰,张忠会,姚峰. 基于设备运行风险等级的检修策略研究[J]. 水电能源科学,2014,32(4):206-207.
[6] 潘乐真,张焰,俞国勤,等. 状态检修决策中的电气设备故障率推算[J]. 电力自动化设备,2010,30(2):91-94.
[7] 国家电网公司. 输变电设备风险评估导则:Q/GDW 1903—2013[S]. 北京:中国电力出版社,2013:3-8.
[8] 丁厚成,万成略. 风险评价标准值初探[J]. 工业安全与环保,2004,30(10):45-47.
[9] 罗云. 风险分析与安全评价[M].2 版. 北京:化学工业出版社,2010.
[10] 柳璐,王和杰,程浩忠,等. 基于全寿命周期成本的电力系统经济性评估方法[J]. 电力系统自动化,2012,36(15):46-47.
[11] 崔新奇,尹来宾,范春菊,等. 变电站改造中变压器全生命周期费用LCC模型的研究[J]. 电力系统保护与控制,2010,38(7):70-72.
[12] 徐玉琴,任正,詹翔灵,等. 电力变压器全寿命周期成本建模及其综合敏感性分析[J]. 华北电力大学学报,2014,41(6):81-85.
[13] 吴国威,周辉,潘巍巍,等. 基于全寿命周期的变压器成本风险评估[J]. 华东电力,2013,41(3):532-534.
[14] 孙鹏,陈绍辉,张彩庆. 基于全寿命周期成本模型的变电站设备最佳寿命周期评估[J]. 南方电网技术,2011,5(6):96-100.
[15] 张镱议. 基于运行状态和寿命评估的电力变压器全寿命周期检修决策研究[D]. 重庆:重庆大学,2014:89-93.