Published Paper Details:

This paper gives the idea to develop the Hybrid charging for three port converter (TPC) power flow control is implemented with Photovoltaic (PV) charging and storage system. In order to optimize the battery charging performance, three charging strategies, including: the Sun domain (SD), battery charging domain (BCD) and battery discharging domain (BDD) are adopted. Traditionally, in order to realize these charging strategies, the PV charger should abandon the Maximum Power Point Tracking (MPPT) function to maintain the power flow balance and the output power of the PV array will be decreased. Therefore, TPC power flow control strategies are proposed to achieve the maximum PV power utilization as well as to realize the hybrid charging methods. In addition, with the proposed strategies, the TPC charging/discharging capability of the battery is able to achieve the maximum PV power utilization. All the strategies can be realized by the control unit without adding additional circuit, component and communication mechanism. Simulation model shows the performance and feasibility of the proposed strategies.