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2016
When realized as a dc-dc converter, the introduced Z-source impedance network must similarly be short-circuited for a certain defined duty ratio per switching period. The basic operating principles therefore remain unchanged, except that the rear-end converter bridge is changed to one suitable for performing dc-dc conversion.
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When realized as a dc-dc converter, the introduced Z-source impedance network must similarly be short-circuited for a certain defined duty ratio per switching period. The basic operating principles therefore remain unchanged, except that the rear-end converter bridge is changed to one suitable for performing dc-dc conversion.
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An Energy-Stored Quasi-Z Source Converter Based Interlinking Converter for Hybrid AC/DC Microgrids
Annual Conference of the IEEE Industrial Electronics Society, 2018This paper presents an energy-stored quasi-z source converter (qZSC) which functions as an interlinking converter (IC) to coordinate the control of hybrid AC/DC microgrids.
Dongsen Sun +3 more
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Z-Source AC–AC Converters Solving Commutation Problem
IEEE Transactions on Power Electronics, 2007A new family of Z-source ac-ac converters with buck-boost ability are proposed, including four switches single-phase structure and six switches three-phase structure. New commutation strategies for these converters are proposed and safe commutation can be achieved without snubber circuit.
Yu Tang, Shaojun Xie, Chaohua Zhang
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Small-Signal Modeling and Dynamic Analysis of the Quasi-Z-Source Converter
Annual Conference of the IEEE Industrial Electronics Society, 2019The quasi-Z-source inverter (qZSI) can operate as a single-stage buck-boost inverter with a higher step-up gain when compared with the conventional two-stage inverter.
Wenjie Liu, Yiwei Pan, Yongheng Yang
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Novel Z-source high step-up boost converter
2014 International Power Electronics and Application Conference and Exposition, 2014In order to increase the output voltage range of photovoltaic panels, battery and fuel cell monomer efficiently in the distributed generation system, In this paper, a novel Z-source high step-up boost converter is presented. With a unique X-type Z-source network, clamping voltage of pump capacitor is improved.
Xiaoxia Liang +3 more
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A Quasi-Z-Source Converter to Feed a Switched Reluctance Drive with Multilevel Voltages
Annual Conference of the IEEE Industrial Electronics Society, 2018This paper presents a quasi-Z-source (qZS) converter that allows to supply multilevel voltages for the switched reluctance machine (SRM) drive. The use of qZS converter in SRM drives allows obtaining better high speed operation characteristics since ...
V. Pires, A. Pires, J. Martins, Hao Chen
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Hybrid PWM control for Z-source matrix converter
2011 IEEE Energy Conversion Congress and Exposition, 2011This paper proposes four control strategies for Z-source matrix converter: simple maximum boost control, maximum boost control, maximum gain control and hybrid minimum stress control. The maximum gain control can obtain the maximum gain at the same modulation index among all four; and the hybrid minimum voltage stress control can obtain the minimum ...
Qin Lei, Baoming Ge, Fang Z. Peng
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A Developed Structure for DC–DC Quasi-Z-Source Converter with High Voltage Gain and High Reliability
Journal of Circuits, Systems and Computers, 2018In this paper, a developed structure for DC–DC quasi-Z-source (QZS) converters is proposed. First, the proposed two-stage structure is presented and analyzed.
E. Babaei, M. S. Zarbil, E. S. Asl
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Three-phase voltage-fed Z-source matrix converter
2011 International Conference on Electrical Machines and Systems, 2011This paper proposes a novel three-phase ac-ac converter topology based on Z-source concept. It could provide buck-boost function and make the role of frequency changer. Compared with the traditional ac-dc-ac converter, it uses fewer devices and realizes direct ac-ac power conversion, so as to have higher efficiency and better circuit characteristics ...
Xupeng Fang +4 more
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