基于随机潮流的配电网最大光伏接入能力与影响分析

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Abstract Based on Monte Carlo simulation and power correction of distribution networks power flow method, this paper establishes photovoltaic power generation system stochastic model and load stochastic model, then puts forward probabilistic load flow calculation method for distribution networks with photovoltaic power system. Application of the proposed probabilistic load flow method, using the IEEE-33 node distribution system and typical pattern distribution system, this paper researches on the photovoltaic power generation system’s impact on distribution networks from line loss and node voltage. Simulation results show that in a certain range of permeability of photovoltaic power system, photovoltaic power system have a positive effect on distribution network, which can enhance the node voltage and decrease the line loss. However, when the permeability is excessive the reverse power flow will occur, making the node voltages above the allowable value and increasing the line loss. Furthermore, according to the experimental data the appropriate permeability range will be given.

Key words： photovoltaic power generation system distribution networks probabilistic load flow backward forward sweep load flow method monte carlo simulation

Received: 11 January 2018 Published: 17 July 2018

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	Liu Lei
	Lin Jinfu
	Liu Fuyong

Cite this article:

Liu Lei,Lin Jinfu,Liu Fuyong. Analysis of maximum photovoltaic integrated capacity and its influences on distribution networks based on probabilistic load flow[J]. Electrical Engineering, 2018, 19(7): 15-20.

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http://dqjs.cesmedia.cn/EN/Y2018/V19/I7/15

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