Performance analysis of a new high gain dc-dc converter interfaced with solar photovoltaic module

This work presents a new single switched high gain dc-dc converter which can be used in PV systems, in which the low DC output voltage of PV module is converted into high dc output voltage. The proposed converter utilises a single switch, an inductor and a capacitor to transfer the inductive and capacitive energy simultaneously, achieving a high boost ratio. The voltage gain of the dc-dc converter is obtained as 10. The state space model of the converter is presented and all the performance parameters of the proposed converter are analysed when coupled with a PV module. A practical solar module BPSX150S is designed using manufacturer's datasheet by MATLAB program/.m files. Different MPPT algorithms like P&O, Incremental Conductance and Modified Perturb and Observe algorithm are used to find the maximum power point and extract the maximum power. The complete PV system is modelled using the proposed converter interfaced with the designed PV module with MPPT to keep the output voltage constant. The proposed converter is implemented in hardware for the experimental verifications and the experimental results are presented. All the simulations are done using MATLAB program/.m files and SIMULINK.