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计及电动汽车充电站接入的电网承载力鲁棒优化研究

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传统方法在电网承载力鲁棒优化中未考虑电动汽车充电站接入对电网影响,导致电网短时负荷率仍旧较高,且电网承载力仍旧较差,优化效果并不理想,为此进行计及电动汽车充电站接入的电网承载力鲁棒优化研究.考虑电动汽车充电站接入对电网运行状态的影响,以电网线路电压越限率最小、网损最小、短时负荷率最小为目标建立多目标优化函数;再结合目标函数和电网承载力鲁棒优化需求,设定电网功率平衡、容量及电压约束性条件,建立电网承载力鲁棒优化模型;最后利用粒子群算法对模型求解,得到最优电网承载力鲁棒优化方案,实现计及电动汽车充电站接入的电网承载力鲁棒优化.实验结果表明,应用设计方法后电网短时负荷率得到了有效降低,电网承载力得到了有效提升.
Study on Robust Optimization of Grid Hosting Capacity Considering Connections of Electric Vehicle Charging Stations
Currently prevailing electric grid hosting capacity robust optimization methods does not consider the impact of connections of electric vehicle charging stations,resulting in inadequacies in reducing short-term load rate and maintaining hosting capacity,and thereby are unsatisfactory in optimization utility.This work preliminarily proposed a robust optimi-zation method for electric grid hosting capacity considering EV charging stations.The main efforts entailed the establish-ment of a multi-objective optimization function with the objectives of minimum voltage overlimit rate,minimum network loss and minimum short-term load rate,the robust optimization modeling of grid hosting capacity by combining the objec-tive function with the robust optimization requirements and the constraint conditions of grid's power balance,capacity and voltage,and the solution of the model using particle swarm optimization algorithm which obtained robust optimization scheme of grid hosting capacity.The application of the designed optimization method was indicated by experiment to a-chieve effective reduction in short-time load rate and improvement in grid hosting capacity.

electric vehiclecharging stationhosting capacityrobust optimizationpower balancePSO

王虹、郭聃、陈豪、于文牮、仇智

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国网威海供电公司,山东 威海 264200

国网乳山市供电公司,山东 乳山 264500

电动汽车 充电站 承载力 鲁棒优化 功率平衡 粒子群算法

2024

电工技术
重庆西南信息有限公司(原科技部西南信息中心)

电工技术

影响因子:0.177
ISSN:1002-1388
年,卷(期):2024.(21)