A Novel Dual Mode Single-Phase Inverter with Time-Sharing Sinewave AbsolutePWM Controlled Soft Switching Boost Chopper for New EnergyInterfaced Power Conditioner

摘要

The objective of this paper is to produce a novelcircuit topology of a high efficiency single-phase powerconditioner suitable for new energy generation as solarphotovoltaic (PV) and fuel cell (FC) or new storage applicationsas electric double layer capacitors (EDLC) or new typebatteries. The paper presents a novel system topology of aselective dual mode pulse modulated high efficiency singlephasesinewave power conditioning without the use ofelectrolytic capacitor DC link. The proposed power conversionsystem is composed of a time-sharing operated sinewaveabsolute modulated boost chopper with a bypass diode in thefirst power conditioning and processing stage and time-sharingsinewave partially pulse modulated full-bridge inverter in thesecond power conditioning and processing stage and it isoperated by selective time-sharing dual mode pulse patternsignal processing control scheme. The unique operatingprinciple of the two power conditioning and processing stageswith selective time-sharing dual mode partial sinewavemodulation scheme is described and discussed with a designexample. The paper proposes also a sinewave tracking voltagecontrolled soft switching PWM boost chopper with a bypassdiode loop using a passive auxiliary edge-resonant snubberCircuit. The operating principle, operation modes and thecontrol implementation of this power conditioner are presentedand evaluated through the experimental and simulation results.