An ultra-high gain boost converter with reduced switching voltage stress for PV applications integrated with cv control

In this report an ultra-high gain boost converter is proposed with ten times gain achieved at the output with operating loads in the range of 200-400W. The converter is incorporated with two high frequency switching capable MOSFET switches. The converter is included with only one boosting inductor which charges and discharges as per duty cycle of the MOSFET switches. The input to the converter can be lower voltage sources like PV panel or battery which need high voltage gain for operating the loads. The PV panel is considered to be lower voltage source which operates as per the solar irradiation amplitude. As the solar irradiation is unpredictable the voltage and the current of PV array also varies which needs to be stabilized. This is achieved by feedback loop CV control with voltage reference. The CV control stabilizes the output voltage of the converter and maintains at given reference value for variable input voltage source. The graphs and results are generated with different operating conditions using MATLAB Simulink software.