PROJECT TITLE :

Research on power sharing strategy of hybrid energy storage system in photovoltaic power station based on multi-objective optimisation

ABSTRACT:

Battery/supercapacitor (SC) hybrid energy storage system (HESS) is an effective method to suppress the facility fluctuation of photovoltaic (PV) power generation system throughout radiation amendment. This study focuses on the ability sharing between totally different energy storage elements with two optimisation objectives: energy loss and state of charge of SC. 1st, the topology of HESS and its association with PV system are analysed. Second, the control targets of the HESS are organised as optimisation objectives. A linear weighted summation algorithm based on variable weights is proposed to unravel the multi-objective optimisation downside to obtain current reference of SC and battery. Third, the energy management system of the HESS is intended based on proposed algorithms. Simulation and experiment results verified the proposed algorithms and management strategy.