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Modeling and Control of Single-Phase Quasi-Z-Source Inverters
IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018Compared 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 +3 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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Loss Analysis of Quasi Z-source Inverter with Superjunction-MOSFET
IEEJ Transactions on Industry Applications, 2018AbstractA Z‐source inverter (ZSI) can work as an inverter with boost capability in one stage by using its impedance source and the short‐through mode as the switching mode. This paper discusses the circuit losses that depend on the boost ratio between the quasi ZSI, which is one of the ZSI topologies, using Superjunction‐MOSFETs and the conventional ...
Naoki Kamoshida +3 more
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IEEE transactions on power electronics
The dead-beat control inherits the high control precision and the fast dynamic response of model predictive control (MPC). In many literatures, the dc-side current of the quasi Z-source inverter (qZSI) using the dead-beat control is regarded as an ...
Shejuan Qiao, Jin Huang, Yuhao Xu
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The dead-beat control inherits the high control precision and the fast dynamic response of model predictive control (MPC). In many literatures, the dc-side current of the quasi Z-source inverter (qZSI) using the dead-beat control is regarded as an ...
Shejuan Qiao, Jin Huang, Yuhao Xu
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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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High-Boost Switched-Inductor Based Active Quasi-Z-Source Inverter for Renewable Energy Applications
International Conference on Energy, Power and EnvironmentThis paper presents a high-boost active quasi-Z-source inverter (qZSI) with a switched-inductor structure, specifically designed for renewable energy integration applications such as photovoltaic (PV), wind energy, and fuel cell systems.
Sushanta Nath +2 more
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IEEE transactions on power electronics, 2022
Nowadays, a model predictive control has gained a lot of attractions for power converter. To overcome the defects of the conventional model predictive control and achieve better performance, this article presents a multivector model predictive power ...
Xin-Wei Duan +3 more
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Nowadays, a model predictive control has gained a lot of attractions for power converter. To overcome the defects of the conventional model predictive control and achieve better performance, this article presents a multivector model predictive power ...
Xin-Wei Duan +3 more
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Improved Quasi-Z-Source Inverter Based on Switching Inductor
2025 2nd International Conference on Electrical Technology and Automation Engineering (ETAE)In order to solve the shortcomings of the traditional quasi-Z-source inverter (qZSI), such as limited boost capability, high voltage stress, and poor output waveform quality, this paper proposes an improved quasi-Z-source inverter based on switched ...
Xu-Peng Fang +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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IEEE transactions on power electronics
The battery energy-stored quasi Z-source inverter (BES-qZSI) is widely used for photovoltaic power generation system to suppress the fluctuation in photovoltaic power.
Yi Liu, Jia-Jia Li
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The battery energy-stored quasi Z-source inverter (BES-qZSI) is widely used for photovoltaic power generation system to suppress the fluctuation in photovoltaic power.
Yi Liu, Jia-Jia Li
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