Photovoltaic (PV) systems have gained an ever increasing popularity as a renewable energy source. However, designing control schemes that ensure maximum power extraction for grid-connected PV arrays while properly mitigating grid faults is still a challenging problem in the control community. This paper proposes an integral terminal sliding mode control (ITSM) scheme for grid-connected PV arrays. The approach aims at maximizing power extraction while mitigating the effects of disturbances caused by irradiance fluctuations and oscillations in the bulk voltage. Effective elimination of the voltage drag and maximum power point tracking are among the positive features of the proposed approach. Efficiency of the proposed approach was assessed using a simulation study involving several operating conditions and various faulty situations.
['Sai Sree Teja Amirineni', 'Mohammad Javad Morshed', 'Afef Fekih']
Integral terminal Sliding Mode Control for maximum power production in grid connected PV systems