Universiti Teknologi Malaysia Institutional Repository

Design and develoment of high performance resonant type inverter for rooftop grid connector photovoltaic application

Salam, Zainal (2004) Design and develoment of high performance resonant type inverter for rooftop grid connector photovoltaic application. Technical Report. Universiti Teknologi Malaysia. (Unpublished)

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Abstract

This thesis proposes a bidirectional high-frequency link inverter using high-frequency transformer, for grid-connected application. The proposed topology has high efficiency, light weight and low cost. In contrast with work carry out by previous researches, the power switches count is reduced, for center-tapped transformer is used. Therefore, the efficiency of the inverter is increased. As far as PWM technique is concerned, digital approach has been applied. A mathematical equation was derived to calculate the pulse width, and switching scheme for the gate signals was proposed. Furthermore a simple dead time compensation based on pulse width increment was fully implemented. As a result, output voltage distortion was reduced. The proposed topology was verified using computer simulation to study it strength and weaknesses. A 1kW prototype was implemented based on a 16-bit microcontroller. Laboratory experiments are carried out to determine the system performance and the result are very encouraging. The inverter has a maximum efficiency of 90% and low Total Harmonic Distortion (THD), which is less than 1%.

Item Type:Monograph (Technical Report)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:2934
Deposited By: Adil Mohamad
Deposited On:21 May 2007 08:44
Last Modified:10 Sep 2017 06:20

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