Optimization Between the PV and the Retired EV Battery for the Residential Microgrid Application

This paper presents a study on the the retired EV(electrical vehicle) battery in residential microgrid. Firstly, an optimal control theory based algorithm is proposed to determine the optimal application of the battery pack for a residential house equipped with a roof-top PV system. This first goal of this algorithm is to minimize yearly operation cost of this battery-PV system. The second goal of this algorithm is to optimize the size of the PV-pannel in the system. The household load is modeled using probabilistic method in the Energy Management Strategy(EMS) to extend its applicable range.