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A Class of Quasi-Z-Source Inverters
2008 IEEE Industry Applications Society Annual Meeting, 2008In this paper, theoretical results are shown for several novel inverters. These inverters are similar to the Z- source inverters presented in previous works, but have several advantages, including in some combination; lower component ratings, reduced source stress, reduced component count and simplified control strategies.
Joel Anderson, F. Z. Peng
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New capacitor assisted quasi Z-source inverter
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017In this paper, a new quasi Z-source inverter based on new capacitor basic units (CAQZSI) is proposed. It is possible to develop the proposed topology by using n numbers of the basic units that is one of the main advantages of the proposed CAQZSI. The boost factor equation, voltage and current equations of the capacitors, diodes and inductors are ...
Sara Laali, Ebrahim Babaei
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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 buckâboost 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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Typical Transformer-Based Z-Source/Quasi-Z-Source Inverters
2016This chapter discusses the typical trans and LCCT Z-source/quasi-Z-source inverters (ZSIs/qZSIs). Their configurations, working operations, voltage and current principles, and simulation results are presented, providing a demonstration of the investigation of other extended transformer-based ZSIs/qZSIs.
Loh, Poh Chiang +2 more
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New High-frequency Isolated Quasi-Z-source Inverter
2020 Chinese Automation Congress (CAC), 2020In order to make up for the shortcomings of traditional Z-source and quasi-Z-source inverter, such as weak boosting capacity, large capacitor voltage stress, and electrical isolation on the input and output sides, this paper proposes a new high-frequency isolated quasi-Z-source inverter circuit topology.
Fang Xupeng, Wang Song, Wang Xiaoli
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An Extended Quasi-switched Z-Source Inverter
2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC), 2019In this paper, a new extended quasi-switched Z-source inverter, using a switched-inductor cell, is proposed. The most important advantage of the proposed inverter is achieving the maximum voltage gain in the lower duty cycle with less circuit components than similar previous inverters, which causes the modulation index value increase.
Mehran Sabahi +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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Switched Impedance Enhanced-Boost Quasi-Z-Source Inverter
2017 14th IEEE India Council International Conference (INDICON), 2017Enhanced-boost quasi-Z-source inverter (EB-qZSI) is proposed in this paper. Similar to the enhanced-boost ZSI and continuous input current enhanced-boost qZSI with two switched-impedance networks, this proposed inverter topology possess very high voltage boost at low shoot-through duty ratio and high modulation index to provide better quality output ...
Vadthya Jagan, Sharmili Das
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Simple boost PWM controlled cascaded quasi Z-source inverter
Materials Today: Proceedings, 2021Abstract In this paper cascaded quasi Z source inverter is used to give desired boosted output. It can derive from the quasi Z source inverter by adding one diode, one inductor, ant two capacitors. Power converters can be used for adjusting the parameters needed for synchronization of the source and load.
K. Chitra +3 more
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