Optimization of photovoltaic maintenance plan by means of a FMEA approach based on real data
Optimization of photovoltaic maintenance plan by means of a FMEA approach based on real data
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DOI：
10.1016/j.enconman.2017.08.090
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发表时间：
2017-11
影响因子：
10.4
通讯作者：
Mauro Villarini;V. Cesarotti;L. Alfonsi;Vito Introna
中科院分区：
文献类型：
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作者：
Mauro Villarini;V. Cesarotti;L. Alfonsi;Vito Introna
在改进可再生能源系统方面取得了许多科学进展。最近，由于新的可再生能源发电厂的数量大幅增加，它们在使用寿命期间的优化管理受到了相当大的关注。为了最大限度地生产有用的绿色能源，高可靠性水平与高产量同等重要。太阳能一直是市场上最受欢迎和开发的可再生能源之一，因此其效率和可靠性的提高产生了相当大的影响。所有能源系统都需要提高转换效率，以减少一次能源的消耗。此外，光伏系统性能的优化增加了它们作为可再生能源在全球发电中的比例，并提高了它们的盈利能力。工作能源系统的组件和子组件的故障会导致两个主要问题：第一个对工厂的直接影响是组件和子组件的损坏，第二个间接影响是由于工厂出现故障而导致的能源生产不足。此外，组件不可预见的故障增加了光伏电力系统的不可控性，从而恶化了电网调度。本文首次使用光伏系统的故障模式和影响分析方法对以可靠性为中心的维修进行了全新的评估。我们使用的大量数据来自一家跨国公司进行的实际维修活动的数据库。这些数据是由在光伏电力系统的安装、运行和维护方面具有专业经验的专家的意见解释的，光伏电力系统的规模从小到数兆瓦。与以往的许多研究相比，本文的工作具有优势，因为这些信息来自光伏系统的实际经验，从而允许进行更现实的风险分析，特别是这些信息还被用于修订光伏设施的维护计划并优化其有效性，集中于对生产影响最大或易于移除/减少的各种故障模式。
There have been many scientific advances in the improvement of renewable energy systems. Recently, considerable interest has been given to their optimized management during their service life due to a large increase in the number of new renewable energy source power plants. High reliability levels are as important as high yields in order to maximize the useful green energy produced. Solar energy has been one of the most popular and exploited renewable sources in the market and therefore improvements in its efficiency and reliability have had a considerable impact. All energy systems require an increase in their conversion efficiency to reduce the consumption of primary energy. Moreover, the optimization of the performance of photovoltaic systems has increased their incidence as renewable sources in global power generation and has boosted their profitability. A failure of the components and sub-components of a working energy system cause two main issues; the first direct implication for the plant is the damage of the components and sub-components, and the second indirect implication is the consequent lack of energy production due to the plant being out of order. Furthermore, unforeseen failures of the components increase the uncontrollability of photovoltaic power systems, which worsens electric grid dispatching.The work presented here provides, for the first time, a complete and new assessment of Reliability Centered Maintenance carried out using a failure mode and effect analysis approach to photovoltaic systems. We use a large volume of data derived from a database of real maintenance activities carried out by a multinational company. These data were interpreted by the opinions of experts with specialist experience in the installation, operation, and maintenance of photovoltaic power systems, from small to multi-megawatt size. The present work here has advantages over many previous studies since the information was derived from real experiences of photovoltaic systems which allowed for a more realistic risk analysis and, especially, this information was also used to revise the maintenance plan of photovoltaic installations and to optimize their effectiveness, concentrating on various failure modes which mostly affect production or which can be easily removed/reduced.