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Z-source inverter

About: Z-source inverter is a research topic. Over the lifetime, 1610 publications have been published within this topic receiving 24564 citations.


Papers
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Proceedings ArticleDOI
15 Jun 2008
TL;DR: In this paper, theoretical results are shown for several novel inverters, which 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.
Abstract: In 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. Like the Z-source inverter, these inverters are particularly suited for applications which require a large range of gain, such as in motor controllers or renewable energy. Simulation and experimental results are shown for one topology to verify the analysis. Also, a back-to-back inverter system featuring bidirectionality on both inverters, as well as secondary energy storage with only a single additional switch, is shown.

1,031 citations

Journal ArticleDOI
TL;DR: In this article, a maximum boost control method for the Z-source inverter is presented to produce the maximum voltage boost under a given modulation index, and the relationship of voltage gain versus modulation index and voltage stress versus voltage gain is analyzed in detail and verified by simulation and experiment.
Abstract: This paper explores control methods for the Z-source inverter and their relationships of voltage boost versus modulation index. A maximum boost control is presented to produce the maximum voltage boost (or voltage gain) under a given modulation index. The control method, relationships of voltage gain versus modulation index, and voltage stress versus voltage gain are analyzed in detail and verified by simulation and experiment.

769 citations

Journal ArticleDOI
TL;DR: In this article, the authors proposed two constant boost control methods for the Z-source inverter, which can obtain maximum voltage gain at any given modulation index without producing any low-frequency ripple that is related to the output frequency and minimize the voltage stress at the same time.
Abstract: This paper proposes two constant boost-control methods for the Z-source inverter, which can obtain maximum voltage gain at any given modulation index without producing any low-frequency ripple that is related to the output frequency and minimize the voltage stress at the same time. Thus, the Z-network requirement will be independent of the output frequency and determined only by the switching frequency. The relationship of voltage gain to modulation index is analyzed in detail and verified by simulation and experiments.

685 citations

Journal ArticleDOI
TL;DR: In this paper, a switched inductor (SL) Z-source inverter is proposed to enlarge voltage adjustability, which employs a unique SL impedance network to couple the main circuit and the power source.
Abstract: On the basis of the classical Z-source inverter, this paper presents a developed impedance-type power inverter that is termed the switched inductor (SL) Z-source inverter. To enlarge voltage adjustability, the proposed inverter employs a unique SL impedance network to couple the main circuit and the power source. Compared with the classical Z-source inverter, the proposed inverter increases the voltage boost inversion ability significantly. Only a very short shoot-through zero state is required to obtain high voltage conversion ratios, which is beneficial for improving the output power quality of the main circuit. In addition, the voltage buck inversion ability is also provided in the proposed inverter for those applications that need low ac voltages. Similar to the classical Z-source inverter, the proposed concepts of SL Z-source inverter can be applied to various applications of dc-ac, ac-ac, dc-dc, and ac-dc power conversion. A detailed topology analysis and a generalized discussion are given. Both simulation and experimental results verify the analytical results.

546 citations

Journal ArticleDOI
TL;DR: In this article, a Z-source inverter system for a split-phase grid-connected photovoltaic system is proposed, and the operation principle, control method, and characteristics of the system are presented.
Abstract: This paper proposes a Z-source inverter system for a split-phase grid-connected photovoltaic system. The operation principle, control method, and characteristics of the system are presented. A comparison between the new and traditional system configurations is performed. Simulation and experimental results are also shown to verify the proposed circuit and analysis

500 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202320
202240
202179
2020122
2019135
2018127