단상 계통 연계형 풀브릿지 인버터의 스위치 손실 모의 및 분석

Simulation and Analysis of Losses of Switching Device for Single Grid-connected Full bridge inverter

This paper presents analysis of losses of switching device for full bridge inverter connected to grid. The losses are a dominant factor that judges efficiency of the system. The losses of switching device are divided to switching loss and conduction loss. They are can be estimated by analyzing periodic switching waveforms. The switching loss is generated at the point that turn-on and off. And the conduction loss is generated while the switch is on condition. The estimated losses of switch are compared to simulation result in this paper.