KLI

Three-phase Embedded Modified-Z-Source Three-Level T-Type Inverters

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Abstract
Two topologies are designed by combining a modified-Z-source impedance (MZS) network consisting of three diodes, two inductors and four capacitors to the traditional three-level T-type inverter (3LTI), and embedding either one or two dc sources in the impedance network, which are named as asymmetrical embedded MZS-3LTI (AEMZS-3LTI) and symmetrical embedded MZS-3LTI (SEMZS-3LTI). The proposed topologies provide a highly boosted ac output voltage with five voltage levels and ensure a continuous dc source current by adopting the embedded concept. In comparison to other topologies combining the impedance network and 3LTI, the proposed SEMZS-3LTI topology has two times higher boost factor and the lowest ratio of voltage stress across capacitors to the ac output voltage. The modulation technique is proposed for effectively controlling the upper and lower shoot-through states with a simple logic circuit and balancing two series capacitor voltages. The validity of the proposed topologies and the modulation technique is demonstrated through simulation and experimental results.
Author(s)
후인 안 뚜언
Issued Date
2020
Awarded Date
2020-02
Type
Dissertation
URI
https://oak.ulsan.ac.kr/handle/2021.oak/6379
http://ulsan.dcollection.net/common/orgView/200000286816
Alternative Author(s)
Anh-Tuan Huynh
Affiliation
울산대학교
Department
일반대학원 전기전자컴퓨터공학과
Advisor
Professor Tae-Won Chun
Degree
Master
Publisher
울산대학교 일반대학원 전기전자컴퓨터공학과
Language
kor
Rights
울산대학교 논문은 저작권에 의해 보호받습니다.
Appears in Collections:
Computer Engineering & Information Technology > 1. Theses(Master)
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