Optimization Method of Wind-Photovoltaic-Battery Power Collection Grid Scale in Meshed Grid Mode

doi:10.3969/j.issn.1000-7229.2015.12.011

Abstract

Abstract:

Due to the characteristics of a large number of power connected into branches in power collection grid, the fault at the beginning of branches in wind-photovoltaic-battery power collection grid with radial and chain topologies will cause enormous power losses. To improve the reliability of wind-photovoltaic-battery generation system, the distribution network in meshed grid mode was proposed to construct wind-photovoltaic-battery power collection grid. On this basis, this paper establishes the optimization model of power collection grid scale with considering electricity revenue and cable cost constraint, as well as the optimization algorithm of power collection grid scale in meshed grid mode based on genetic algorithm theory. Then, this paper studies the power collection scale, electricity benefit and other problems of wind-photovoltaic-battery power collection grid in meshed grid mode. Finally, the research and example analysis prove the collection advantage of power collection grid in meshed grid mode and the effectiveness of the proposed optimization model and algorithm.

Key words: meshed grid, wind farm, power collection grid, power collection capacity

CLC Number:

TM 614

LIU Lianguang,JIANG Zhihua, HAN Longyan, LIU Zifa, GE Xiaoning, HU Zunzhang. Optimization Method of Wind-Photovoltaic-Battery Power Collection Grid Scale in Meshed Grid Mode[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(12): 69-75.

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