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Reliability assessment of distribution system with the integration of photovoltaic and energy storage systems
Sustainable Energy Grids & Networks ( IF 4.8 ) Pub Date : 2021-10-26 , DOI: 10.1016/j.segan.2021.100554
Sara Ostovar 1 , Amir Esmaeili-Nezhad 2 , Moein Moeini-Aghtaie 1 , Mahmud Fotuhi-Firuzabad 3
Affiliation  

With the current focus on energy and the environment, efficient integration of renewable energies, especially solar energy into power systems, is becoming indispensable. Moreover, to fully capture solar potentials and to recognize the unique characteristics associated with solar energy in power systems reliability assessment, a profound investigation is needed. Accordingly, this paper attempts to establish a comprehensive analytical approach for modeling the reliability of a hybrid system (Photovoltaic (PV) system with Energy Storage System (ESS)). To this end, the output of the PV system is modeled by a multi-state model, and the ESS system is modeled as a two-state Markov model. Moreover, the failure of the hybrid system’s components is considered by using the Failure Modes and Effects Analysis (FMEA) method. It then continues with the integration of the PV and ESS system model and the model associated with the failure of their components, thereby allowing the hybrid system to be represented as a multi-state model in analytical studies. Also, the conditional probability approach is used and related indices have been extracted. Finally, a discussion of a methodology for optimal hybrid system allocation and sizing in distribution systems, to minimize the electrical network losses and to guarantee acceptable reliability level and voltage profile is presented. The results obtained from the implementation of the case study, validate the major features of the proposed analytical model along with optimal placement of the hybrid system more efficiently.



中文翻译:

光伏与储能系统集成配电系统可靠性评估

随着当前对能源和环境的关注,将可再生能源,尤其是太阳能有效整合到电力系统中变得不可或缺。此外,为了在电力系统可靠性评估中充分捕捉太阳能潜力并识别与太阳能相关的独特特性,需要进行深入的调查。因此,本文试图建立一种综合分析方法来模拟混合系统(光伏(PV)系统和储能系统(ESS))的可靠性。为此,光伏系统的输出采用多态模型建模,ESS系统建模为二态马尔可夫模型。此外,混合系统组件的故障是通过使用故障模式和影响分析 (FMEA) 方法来考虑的。然后继续集成 PV 和 ESS 系统模型以及与其组件故障相关的模型,从而允许混合系统在分析研究中表示为多状态模型。此外,还使用了条件概率方法并提取了相关指标。最后,讨论了在配电系统中优化混合系统分配和规模的方法,以最大限度地减少电网损耗并保证可接受的可靠性水平和电压分布。从实施案例研究中获得的结果,验证了所提出的分析模型的主要特征以及更有效地优化混合系统的位置。从而允许混合系统在分析研究中表示为多状态模型。此外,还使用了条件概率方法并提取了相关指标。最后,讨论了在配电系统中优化混合系统分配和规模的方法,以最大限度地减少电网损耗并保证可接受的可靠性水平和电压分布。从实施案例研究中获得的结果,验证了所提出的分析模型的主要特征以及更有效地优化混合系统的位置。从而允许混合系统在分析研究中表示为多状态模型。此外,还使用了条件概率方法并提取了相关指标。最后,讨论了在配电系统中优化混合系统分配和规模的方法,以最大限度地减少电网损耗并保证可接受的可靠性水平和电压分布。从实施案例研究中获得的结果,验证了所提出的分析模型的主要特征以及更有效地优化混合系统的位置。讨论了在配电系统中优化混合系统分配和规模的方法,以最大限度地减少电网损失并保证可接受的可靠性水平和电压分布。从实施案例研究中获得的结果,验证了所提出的分析模型的主要特征以及更有效地优化混合系统的位置。讨论了在配电系统中优化混合系统分配和规模的方法,以最大限度地减少电网损失并保证可接受的可靠性水平和电压分布。从实施案例研究中获得的结果,验证了所提出的分析模型的主要特征以及更有效地优化混合系统的位置。

更新日期:2021-11-07
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