Optimisation strategy for an operational planning of a large photovoltaic system with enhanced electrical vehicles

摘要

Photovoltaic (PV) systems are rapidly gaining acceptance as some of the best alternative energy sources. In the installation area of a large PV system, appropriate operation is required, for example, of a method considering power output fluctuation and solar radiation forecast errors. In addition, it is better to minimise the size of the battery and its capital cost. This paper proposes an optimisation approach to determine the operational planning of the power output for a large PV system. This approach includes the method of determination of the charge/discharge amount for the battery of an electric vehicle as a demand response. The method aims to obtain a more beneficial deal with the sale of electrical power. The optimisation method applies the genetic algorithm to smoothen the fluctuating power output due to the PV system, and also to determine the initial state of charge of the battery. The validity of the proposed method is confirmed by the simulation results.