Results 261 to 270 of about 7,572,768 (296)

Modeling and Control of Single-Phase Quasi-Z-Source Inverters

IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018
Compared with a conventional two-stage inverter, the quasi-Z-source inverter (qZSI) has several advantages for renewable applications because of its buck-boost capability and continuous input current. This paper addresses modeling and control issues resulted from the impedance-source network resonance. Considering shoot-through states, null states, and
Wenjie Liu, Jing Yuan, Yongheng Yang, Tamas Kerekes   +3 more
openaire   +2 more sources

Operating region of a three-phase quasi-Z-source inverter

2017 IEEE International Conference on Industrial Technology (ICIT), 2017
The impedance source inverter family has become one of the most interesting alternatives for wind and photo-voltaic energies applications which require high conversion ratio. The main drawback of these inverters is related to the modulation signal which must be used to control the output current and voltage conversion ratio simultaneously. To deal with
Ana-Maria Llor, Marcelo A. Pérez, Samir Kouro   +2 more
openaire   +1 more source

Performance analyses of Z-source and quasi Z-source inverter for photovoltaic applications

AIP Conference Proceedings, 2018
This paper presents the comparative analysis of Z-source and Quasi Z-source converter for renewable energy applications. Due to the dependency of renewable energy sources on external weather conditions the output voltage, current changes accordingly which effects the performance of traditional voltage source and current source inverters connected ...
S. Himabind, T. Hari Priya, Ch. Manjeera
openaire   +1 more source

An improved Quasi-Z source inverter control system

2020 IEEE 4th Information Technology, Networking, Electronic and Automation Control Conference (ITNEC), 2020
This paper briefly describes the topology of a quasi-Z source inverter. According to the application of the actual situation, an improved PWM technology is proposed in this paper, and a brief analysis of the improved PWM technology is made. In this paper, the traditional maximum boost SPWM control technology is improved, combined with the three-phase ...
Wenyu Yi, Xiju Zong, Yiming Liu
openaire   +1 more source

Analysis of space vector modulations for three-phase Z-Source / quasi-Z-source inverter

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
As the development of Z-source / quasi-Z-source inverter (ZSI/qZSI), it appears several modified Space Vector Modulations (SVMs) for controlling them. Here, three typical SVMs are investigated and another extended one is also presented. The inductor current ripple, capacitor voltage gain, efficiency, and other performances of these control schemes are ...
Yushan Liu 0001, Haitham Abu-Rub, Baoming Ge, Fang Zheng Peng   +3 more
openaire   +2 more sources

A novel modulation control for quasi-Z-source inverters

2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), 2017
In this paper, a single-phase quasi-Z-source (qZS) inverter (qZSI), integrating the pulse width modulation (PWM) control with interleaved placement shifted shoot-through state (STS) modulation technique, is developed to simultaneously achieve both dc voltage boost and dc-ac inversion.
null Bo-Ruei Peng, Shun-Chung Wang, Yi-Hwa Liu, null Yu-Shan Cheng   +3 more
openaire   +1 more source

An Improved switched-inductor quasi-Z-source inverter

2013 1st International Future Energy Electronics Conference (IFEEC), 2013
This paper has presented an improved switched-inductor quasi-Z-source inverter (SL-qZSI). Compared with the classic SL-qZSI, the boost ability of proposed topology is significantly strengthened. The operation principle of the proposed topology is analyzed in detail.
Kai Deng, Jun Mei, Jianyong Zheng, Wei He, Huping Bao   +4 more
openaire   +1 more source

Research on an improved version of Quasi-Z source inverter

IET International Radar Conference 2013, 2013
Traditional Quasi-Z source inverter uses direct zero vector to realize single-stage buck-boost. However, with the rising of output voltage, the capacitor voltage's increasing adds requirements for devices. A kind of modified Quasi-Z source topology is put proposed.
null Sun Chunxia, null Wang Chengming, null Teng Qingfang   +2 more
openaire   +1 more source

Enhanced quasi-Z-source inverter

International Conference on Mechanisms and Robotics (ICMAR 2022), 2022
Junguo Zhu, Yanping Wang, Shuang Shi, Fengshan Liu   +3 more
openaire   +1 more source

Switched-Coupled-Inductor Quasi-Z-Source Inverter

IEEE Transactions on Power Electronics, 2016
Z-source inverters have become a research hotspot because of their single-stage buck–boost inversion ability, and better immunity to EMI noises. However, their boost gains are limited, because of higher component-voltage stresses and poor output power quality, which results from the tradeoff between the shoot-through interval and the modulation index ...
Hafiz Furqan Ahmed, Honnyong Cha, Su-Han Kim, Heung-Geun Kim   +3 more
openaire   +1 more source