燃煤发电机组检修间隔优化研究Research on optimization of maintenance intervals for coal-fired generating units
李勇;李建锋;杨娟;马更生;
摘要(Abstract):
煤炭价格波动、发电负荷降低及电力市场改革给燃煤发电企业的经济效益带来了越来越大的影响。为降低燃煤火电机组的检修费用,建立了考虑机组上网电量、检修投入、非计划停运及机组能耗变化等因素的检修优化模型,并以某2×300 MW机组电厂为例进行了计算。结果表明,随检修投入增加,机组检修优化后的收益变大:在机组检修费用为1 000万元/次、检修时间为500 h时,每优化减少1次检修所获得的收益可以超过1 500万元。但另一方面,机组检修优化的收益还受非计划停运事件次数、非计划停运设备维修费用及机组能耗变化的影响,因此机组检修间隔的延长也需要有一定的范围。研究表明,所建模型可以用于机组检修间隔优化的定量分析,能够为电厂合理安排检修次数提供技术参考。
关键词(KeyWords): 安全工程;设备管理;燃煤发电;机组检修;检修模型;检修优化;检修间隔
基金项目(Foundation):
作者(Authors): 李勇;李建锋;杨娟;马更生;
DOI: 10.13637/j.issn.1009-6094.2021.0008
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