Digital implementation of GaN-based inverter for permanent magnet electrodynamic shaker

Hung-Chi Chen, Jhen Yu Liao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The maximum operation frequency of a permanent magnet electrodynamic shaker (PMEDS) is 2kHz. To provide good current tracking performance in digital implementation, the PWM frequency is chosen to be 100kHz. Due to the finite turning-on time and the turning-off time of the conventional semiconductor devices, the dead-time has a great effect on the current tracking performance and thus, the dead-time compensation loops need to be included to the current control loop. By using the high-speed high-efficiency GaN devices, the dead-time is near zero and no dead-time compensation loop is required, which simplifies the current control design and saves the calculating time of digital current loop. In addition, the results also show that the GaN devices contribute to less acceleration harmonics and less input power in the application of PMEDS.

Original languageEnglish
Title of host publication1st International Future Energy Electronics Conference, IFEEC 2013
PublisherIEEE Computer Society
Pages252-258
Number of pages7
ISBN (Print)9781479900718
DOIs
StatePublished - 1 Jan 2013
Event1st International Future Energy Electronics Conference, IFEEC 2013 - Tainan, Taiwan
Duration: 3 Nov 20136 Nov 2013

Publication series

Name1st International Future Energy Electronics Conference, IFEEC 2013

Conference

Conference1st International Future Energy Electronics Conference, IFEEC 2013
CountryTaiwan
CityTainan
Period3/11/136/11/13

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