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分布式光伏系统最优运维周期确定方法
尹德扬1, 梅飞2, 郑建勇1, 赫卫国3,4, 祁晓婧1
1.东南大学 电气工程学院,江苏 南京 210096;2.河海大学 能源与电气学院,江苏 南京 211100;3.东南大学 自动化学院,江苏 南京 210096;4.中国电力科学研究院有限公司,江苏 南京 210003
摘要:
目前光伏运维周期主要由人工经验确定,成本过高,不利于光伏产业的发展,为此,提出一种考虑分布式光伏系统典型场景的最优运维周期确定方法。建立分布式光伏2种典型应用场景数学模型;以光伏可靠性模型以及光伏组件积灰模型为基础,建立运维周期模型;利用蒙特卡洛法计算不同运维周期下由发电损失成本及运维成本组成的运维总成本的概率分布。通过不同算例的模拟结果平均值确定最优运维周期,验证了所提方法的有效性和合理性。
关键词:  分布式光伏  运维周期  经济效益  可靠性  组件积灰
DOI:10.16081/j.epae.202202020
分类号:TM721;TM615
基金项目:国家重点研发计划项目(2018YFB1500800)
Determination method of optimal operation and maintenance cycles for distributed photovoltaic system
YIN Deyang1, MEI Fei2, ZHENG Jianyong1, HE Weiguo3,4, QI Xiaojing1
1.School of Electrical Engineering, Southeast University, Nanjing 210096, China;2.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;3.School of Automation, Southeast University, Nanjing 210096, China;4.China Electric Power Research Institute, Nanjing 210003, China
Abstract:
The current PV(PhotoVoltaic) operation and maintenance cycles are mainly determined by human experience, the cost is too high, and it is not conducive to the development of PV industry, for which, a determination method of optimal operation and maintenance cycles is proposed considering the typical sce-narios of distributed PV system. The mathematic models of two typical application scenarios of distributed PV are established. Based on the models of PV reliability model and PV module dust accumulation model, an operation and maintenance cycle model is established. The Monte Carlo method is used to calculate the probability distribution of total operation and maintenance cost composed by power generation loss cost and operation and maintenance cost under different operation and maintenance cycles. The optimal operation and maintenance cycles are determined by the average values of simulative results of different examples, verifying the validity and rationality of the proposed method.
Key words:  distributed photovoltaic  operation and maintenance cycle  economic benefit  reliability  module dust accumulation

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