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COMPARATIVE ASSESSMENTS OF CONTINUOUS AND SELF-DRIVEN PWM FOR HIGH FREQUENCY CONVERTER DESIGN

KHALID, SITI MUNIRAH (2011) COMPARATIVE ASSESSMENTS OF CONTINUOUS AND SELF-DRIVEN PWM FOR HIGH FREQUENCY CONVERTER DESIGN. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

In this project the comparison of the continuous gate drivers and self driven gate drivers' characteristics, performance, operation modes, advantages, and disadvantages are analyzed and observed. Both of the gate drivers will be applied at synchronous buck converter, SBC as the output circuit and also with switching frequency of 1 MHz. PSPICE software is used in designing and simulating the respective circuit. The comparison is carried out based on the output voltage, current, node voltage, output ripple voltage and current, gate-tosource voltage, and body diode conduction loss of the continuous and self-driven gate drivers. Type III compensator and AGD are applied to both switches in the SBC circuit. At the end of the simulation, adding AGD to the SBC reduces the dead time, body diode conduction and also cross-conduction losses in DCM. SBC shows an improvement up to 9.70% and 9.78 %on output voltage, current and also has virtually zero on the body diode conduction losses when both compensator and AGD are applied. For CCM and DCM, it is observed that SBC with COD, AGD and compensator-AGO produce high output current in CCM compared to DCM. COD with SBC, the output current in CCM improves 12.22 % compared to DCM. Besides, AGD with SBC is the least preferable circuit compared to compensator-AGO, MPPT-Vpulse, parallelism, and COD because of the lower output voltage and current produced, higher output ripple for voltage and current, and higher body diode conduction loss in the SBC. Here the output voltage and current is reduced to 15.30 % and 15.21 % respectively as it is compared to MPPT-Vpulse·

Item Type: Final Year Project
Academic Subject : Academic Department - Electrical And Electronics - Communications - Microwaves and Radio Frequency - Field and Waves
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 2053 not found.
Date Deposited: 06 Nov 2013 12:32
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10200

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