Cascaded high gain micro-converter for storage-less PV fed rural telecom systems

For ubiquitous wireless mobile network, micro towers are becoming necessity and feeding them in remote locations, unapproachable to grid, has become even more daunting task. A cost-effective, sustainable, low maintenance and environment-friendly electricity generation is highly solicited, and these can be offered alternatively through renewable energy sources. PV fed battery-less system typically suits such application which can cater to rural intra-village telecom and information system, which are solicited majority during day times. This paper proposes a cascaded high gain single stage micro-converter which does the MPPT and boosts the voltage upto usable level. The scheme evacuates the maximum power amidst insolation changes in a limited range, whereas, the load controller provides the matching of power for maintenance of voltage. The performance of the system is evaluated under Matlab/Simulink environment. Presented simulation results show close conformity with design and validates the effectiveness of the control proposed scheme employed.