MULTI MODE PV POWER SYSTEM USING INTERLEAVED CUK CONVERTER

Abstract

DC-DC converters inject harmonics to the power system when the input current ripple is present on the input side. This affects the components present in the module. The converters with low input current ripple and high efficiency are important in most common applications like dialysis machine, lift, electric vehicles etc., Compared to other converters, Interleaved CUK Converter (ICC) reduces ripple current on both input and output sides, reduces switching stress, improves transient performance and also improves efficiency. A multi-mode operation of an ICC for the single-phase Photovoltaic Module (PV) system is proposed. In this paper, the power from the PV panel can be continuously extracted using ICC and can be used in step up or step down applications. The Incremental Conductance(IC) which is based on Maximum Power Point Tracking (MPPT) algorithm is used to track maximum power from PV array and deliver the tracked power to the ICC. The converter’s output voltage is connected to the single-phase induction motor through a single phase full bridge inverter. An ICC is designed and simulated in MATLAB /SIMULINK for 110 volt with an input of 12 volt.