Results 261 to 270 of about 7,548,261 (298)

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

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

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

The Design of Quasi-Z-Source Boost Converter

Applied Mechanics and Materials, 2014
According to analyzing the basic principle of intrinsically safe output quasi-Z-source Boost Converter, this topology can be modeled. When the quasi-Z-source network parameters Lz and Cz are much smaller than conventional converter parameter LC, transfer function can be order-reduced.
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

Modeling and SVPWM control of quasi-Z-source inverter

11th International Conference on Electrical Power Quality and Utilisation, 2011
In today's renewable energy power generation systems, inverters have become key devices connected between energy sources and power grids. The newly presented quasi-Z-source inverter (qZSI) has the unique advantages of boosting DC bus voltage without additional boost link, lower component ratings, as well as constant DC input current compared with the ...
Yushan Liu, Baoming Ge, Fernando J. T. E. Ferreira, Anibal T. de Almeida, Haitham Abu-Rub   +4 more
openaire   +1 more source

Three-phase quasi-Z-source rectifier modeling

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2012
A quasi-Z-source three-phase rectifier is analysed by deriving its detailed dynamic model using circuit averaging and the synchronous reference frame. The quasi-Z-source provides the same advantages as the Z-source rectifier as well as additional advantages such lower rated capacitors.
C. L. Kala Konga, M. N. Gitau
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