基于四分位法的含储能光伏电站可靠性置信区间计算方法

doi:10.19595/j.cnki.1000-6753.tces.160650

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Abstract In order to improve the capacity of photovoltaic station access the power generation system,a combined operation mode integrated with photovoltaic(PV)system and energy storage system(ESS)is established to study the characteristics of photovoltaic power station before and after adding energy storage system.A reliability confidence interval calculation method is proposed in order to evaluate the contribution to the reliability of power grid which has PV and ESS.Firstly,Fuzzy-C-Means clustering is done to the historical data of a photovoltaic power station in Golmud,Qinghai province,dividing the historical data into four kinds of weather types,sunny,cloudy,partly cloudy,rainy.Analyzing the historical data and eliminating the outliers by using the Quartile Method.On this basis,an extraction method of power band for PV and ESS generation system is proposed in this paper.Building the IEEE-RTS79 reliability test system and using sequential Monte Carlo method to calculate the reliability index of the power band of PV and ESS generation system,resulting in containing the reliability confidence interval of this system.The results of the reliability interval calculation provides a theoretical basis for evaluating the reliability of the PV and ESS generation system access to the power grid,and it has great guiding significance for the power generation scheduling.

Key words： Photovoltaic energy storage quartile method power band reliability confidence interval

Received: 10 May 2016 Published: 18 August 2017

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TM743

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160650 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I15/136

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