构建含有插电式混合电动汽车(PHEVs)充放电的动态经济调度数学模型,以社会总成本(机组燃煤费用、启停费用、废气的排放成本、PHEVs用户的经济效益)最小为目标函数,并引入相应的约束条件。提出一种双种群带精英学习策略的微分进化算法,以求出该模型的最优调度方案。10机系统仿真结果表明,借助合理的发电计划,PHEVs的规模化入网能够实现对日负荷“削峰填谷”的作用。
A mathematic model of economic dispatch considering PHEVs(Plug-in Hybrid Electric Vehicles) is built,which takes the minimum total social cost(unit coal cost,switching cost,exhaust emission cost,PHEV users' economic effect) as its objective function and establishes corresponding constraints. A hi-population differential evolution algorithm with elitist strategy is proposed to solve the model and obtain the optimal dispatch scheme. Simulative results for a 10-generator system show that,the large-scale integration of PHEVs may mitigate the daily peak-load by the reasonable power generation schedule.