Analysis of MISO Super Lift Negative Output Luo Converter with MPPT for DC Grid Connected Hybrid PV/Wind System

摘要

This paper proposes a multi-input single output(MISO)super lift negative output Luo converter for DC grid connected hybrid wind and photo voltaic(PV)system.The proposed converter is developed by sharing the charging capacitor and DC link capacitor between the two super lift negative output Luo converters to form a hybrid system.Therefore,it has the advantage of the simple structure and reduced converter passive components.The proposed converter is designed and then analyzed for the DC grid connected hybrid wind and PV system.This study considers a 500W wind system and a 560W PV system with maximum power point tracking(MPPT)algorithms of perturb& observe(P&O)method for both wind and PV system.The proposed converter effectiveness has been validated and compared with the proportional integral(PI)and P&O control algorithms by using the simulation results.Based on the availability of the wind and PV energy sources,the converter usage is presented.