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A Digital Current Control of Quasi-Z-Source Inverter With Battery
IEEE Transactions on Industrial Informatics, 2013This paper presents a fixed frequency operating sliding mode (SM) current control method with fast response and improved stability. Different from the conventional SM control with variable switching frequency, the fixed-frequency SM controller is proposed to control the modulation index and shoot-through duty ratio of the voltage-fed quasi-Z-source ...
Jianfeng Liu +3 more
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Modeling and SVPWM control of quasi-Z-source inverter
11th International Conference on Electrical Power Quality and Utilisation, 2011In 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 +4 more
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An Improved switched-inductor quasi-Z-source inverter
2013 1st International Future Energy Electronics Conference (IFEEC), 2013This 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 +4 more
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An improved Quasi-Z source inverter control system
2020 IEEE 4th Information Technology, Networking, Electronic and Automation Control Conference (ITNEC), 2020This 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
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Large-Scale Wind Turbine With Quasi-Z-Source Inverter and Battery
2021 22nd IEEE International Conference on Industrial Technology (ICIT), 2021Grid connection of permanent magnet synchronous generator -based wind turbines can be performed through a three-stage power conversion system: 1) uncontrolled rectifier, 2) DC boost converter, and 3) voltage source inverter. In this paper, this topology is modified by replacing the two intermediate stages by a quasi-Z-source inverter (qZSI ...
Emanuel P. P. Soares-Ramos +5 more
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A novel modulation control for quasi-Z-source inverters
2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), 2017In 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 +3 more
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Switched-Coupled-Inductor Quasi-Z-Source Inverter
IEEE Transactions on Power Electronics, 2016Z-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 +3 more
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Research on an improved version of Quasi-Z source inverter
IET International Radar Conference 2013, 2013Traditional 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 +2 more
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Model Predictive Control of Quasi-Z-Source Inverter
2021This paper provides an overview simulation and brief discussion about model predictive control of quasi-z-source inverter in shoot-through case and also non-shoot-through case. Model predictive control strategy related with different tasks related to closed-loop control of voltages and currents such as current across inductor and voltage across ...
W. Razia Sultana +5 more
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Enhanced quasi-Z-source inverter
International Conference on Mechanisms and Robotics (ICMAR 2022), 2022Junguo Zhu +3 more
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