小区停车场微电网与电动汽车的功率管理
Power Management of Microgrid Integrated with Electric Vehicles in Residential Parking Station
摘要:
近来,住宅停车站中电动车辆(EV)数量的增加已成为重要问题,因为过多的EV数量会在高峰时段期间使电力系统不稳定,需要高充电功率。当住宅停车站的电力系统采用微电网(MG)结构时,为电动汽车提供电力需要高效的电力管理方案。为了最小化MG的维护成本并保持电网稳定性,MG需要平衡停车站中的EV的充电/放电功率。为了实现这些目标,本文提出了一种充电/放电算法,适用于与电动汽车配置的MG的电源管理。对MG进行多目标优化,以最小化维护成本和电网依赖性,同时最大化光伏(PV)功率的使用和电动汽车作为储能系统(ESS)的利用。在我们的方法中,为了增加电动汽车放电功率的有用性,基本负载和光伏发电被考虑在一起进行功率管理,以减轻它们之间产生的不平衡。因此,所提出的方法表现出优越的电源管理性能相比,其他可比的。
英文摘要:
Lately, increasing number of electric vehicles (EVs) in residential parking station has become an important issue, because excessive number of EVs can destabilize the power system during peak hours with high charging power requested. When the power system of the residential parking station takes the structure of microgrid (MG), power provision for the EVs requires efficient power management scheme. To minimize the maintenance cost of the MG and maintain the grid stability, the MG needs to balance the charging/discharging power of EVs in the parking station. To achieve these goals, this paper proposes a charging/discharging algorithm suitable for the power management of the MG configured with EVs. Multi-objective optimization is taken to MG to minimize the maintenance cost and the grid dependency while maximizing the use of photovoltaic (PV) power and the utilization of EVs as energy storage systems (ESSs). In our approach, to increase the usefulness of discharging power of EVs, the base load and the PV power production are considered together for power management to mitigate imbalances incurred between them. As a result, proposed approach demonstrates superior power management performance as compared to other comparable ones.
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