Power Electronic Project 3

소개글

연세대학교 전기전자 허견 교수님 전력 수업 프로젝트입니다. Square wave inverter simulation와 Single-phase full-bridge inverter simulation 관련 내용입니다.

목차

1. Square wave inverter simulation
2. Single-phase full-bridge inverter simulation

본문내용

1. Square wave inverter simulation
a) Using Pspice, draw the voltage waveforms of the RL load and determine the
THD from Pspice.

Circuit using PSPICE

The voltage waveform(red) and current of the RL load

Inductor Voltage

The THD

FFT of

To get the value of DC voltage and . So -> .
And
So we can get a below chart by using this equations.

<중 략>

b) Briefly, express the principle of Single-phase full-bridge inverter.

The single-phase full-bridge inverter consists of two one-leg inverters of the type and is preferred over other arrangements in higher power ratings. With the same DC input voltage, the maximum output voltage of the full bridge inverter is twice that of the half bridge inverter. This implies that for the same power, the output current and the switch currents are one-half of those for a half-bridge inverter. At high power levels, this is a distinct advantage, since it requires less paralleling of devices.

참고 자료

Power Elctronics, Media Enhanced Third Edition, Mohan Undeland Robbins