Area of research
Renewable Energy, Sustainability and the Environment · Electrical and Electronic Engineering
Research interest
Research topics from publications: A single-phase grid-connected PV converter with minimal DC-link capacitor and low-frequency ripple-free maximum power point tracking; Control strategies for utility-scale cascaded photovoltaic system. Representative work: This paper presents a novel single-phase grid-connected photovoltaic (PV) converter based on current-fed dual active bridge (CF-DAB) dc-dc converter. The proposed converter allows a minimal DC-link capacitor with large voltage variation without low-frequency effect on maximum power point tracking (MPPT). An advanced control system is developed based on the converter operation principles. Minimized transformer peak current is capable to be achieved through a symmetrical dc voltage control. Simulation results are presented to validate the performance of the proposed PV converter. A 5kW laboratorial prototype is also implemented and the results will be presented later This paper focuses on the development of feasible control strategies for three-phase two-stage grid-connected cascaded photovoltaic (PV) system. Two types of control strategies, i.e. distributed control and centralized control, are presented and analyzed in terms of design complexity, application and realization, and power control performance. Comprehensive active and reactive power distribution controls are implemented in the proposed control strategies. Their operation performances are compared and validated with simulation and experimental results