Line commutated converter for grid interfacing of solar photovoltaic array

The line commutated converter (LCC) is matured technology which is used for power conversion. The LCC is tied to a grid in which commutation of power devices (SCR) is achieved by grid voltage. In this paper, three phase LCC in an inverter mode is proposed for interfacing of solar photovoltaic (PV) array and ac grid. This topology does not require to make and maintain the synchronism between converter and ac grid. In addition, it follows maximum power point tracking (MPPT) of solar PV array by changing the firing angle of LCC. The simulation and experimental results demonstrate the feasibility of the proposed solution.