A Family of Discontinuous PWM Strategies for Quasi Z-Source Nine-Switch Inverters

Dabour, Sherif M.; Abdel‐Khalik, Ayman S.; Ahmed, Shehab; Massoud, Ahmed M.

doi:10.1109/access.2021.3137541

Cited by 8 publications

(6 citation statements)

References 28 publications

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“…The ratio between the average dc-link voltage, 𝑉 𝑑𝑐 (that is, capacitor voltage) to the supply voltage, 𝐸 is defined as the dc-boosting factor 𝛽, which can be expressed as follows [9]…”

Section: Boosting Factor and Ac Voltage Gainmentioning

confidence: 99%

“…These topologies can perform bucking or boosting action in conjunction of dc-ac inversion at the same time by integrating a number of passive components (inductors and capacitors) together with semiconductors [1]. There have been numerous studies on the dual output single-stage inverters [3][4][5][6][7][8][9][10][11]. The works on [8], [9] has focused on extending the concept of the two-level threephase Z-source inverter to the dual-output nine-switch inverter (NSI) topology.…”

Section: Introductionmentioning

confidence: 99%

“…There have been numerous studies on the dual output single-stage inverters [3][4][5][6][7][8][9][10][11]. The works on [8], [9] has focused on extending the concept of the two-level threephase Z-source inverter to the dual-output nine-switch inverter (NSI) topology. However, the research work in [10] invented the application of split-source inverter to the same architecture.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis and Control of Simplified Dual-Output Single-Phase Split-Source Boost Inverters

Dabour

Aboushady

Gowaid

et al. 2022

2022 23rd International Middle East Power Systems Conference (MEPCON)

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A simplified dual-output boosting inverter topology is proposed in this study. It can be used to supply two independent single-phase loads from a low voltage DC-power supply with fewer active and passive components. The output voltages can be at the same frequency (common-frequency mode) or at different frequencies. The proposed topology uses a single inductor and capacitor to control both boosting and inversion operations. Compared to the traditional dual output inverter, the proposed topology reduces the active switches by 25%, while compared with the basic Z-source-based dual output inverter, it reduces the passive elements by 50%. The main drawback of this topology is the high-frequency current commutation problem of the forward diodes. A novel carrierbased pulse width modulation scheme to obtain sinusoidal output voltage with low input current ripples of the proposed topology is presented in this paper. Moreover, the presented topology's operating principles and mathematical analysis are introduced. Finally, a simulation study is presented to confirm the theoretical study.

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Section: Boosting Factor and Ac Voltage Gainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis and Control of Simplified Dual-Output Single-Phase Split-Source Boost Inverters

Dabour

Aboushady

Gowaid

et al. 2022

2022 23rd International Middle East Power Systems Conference (MEPCON)

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“…Many publications discuss the modulation techniques of ZSIs for the different number of phases and different applications [11][12][13][14]. It can be mainly classified into three methods:…”

Section: Introductionmentioning

confidence: 99%

“…Despite the merits of multiphase ZSIs, their output voltage magnitude varies accurately in a narrow range by controlling the shoot-through (ST) duty ratio. Many publications discuss the modulation techniques of ZSIs f ber of phases and different applications [11][12][13][14]. It can be mainly methods: (1) simple-boost (SB), (2) maximum-constant-boost (MCB boost (MB) control methods.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis and Evaluation of Multiphase Split-Source Inverters

et al. 2022

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Due to their many advantages over their counterparts, such as Z-source inverters (ZSIs), split-source inverters (SSIs) have recently received much attention as single-stage boost inverters. This paper discusses a multiphase version of the SSI topology for the first time. Among multiphase systems undergoing a revolution in the research area, five-phase motor drives are a relatively practical selection in industrial applications. Therefore, this paper focuses on a five-phase SSI as an example. The topology, operating principles, modulation techniques, and performance analysis of the analyzed topology are introduced. A modified space-vector modulation (MSVM) scheme is developed to eliminate low-frequency ripples in the input current. There is also a detailed analysis and graphical evaluation of the output currents ripples using the space-vector approach. It is evident that multiphase SSI is suitable for motor drives, especially when a high-output voltage gain is required. In addition to having a nearly identical ripple in output current to a conventional VSI, it has the benefit of performing the boosting action in a single stage with fewer passive components and a low ripple in input current. Finally, the simulation and experimental results have been conducted to demonstrate the viability of the multiphase SSI studied in the theoretical study and analysis.

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Modeling and Control of Single-Stage Quadratic-Boost Split Source Inverters

et al. 2022

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This paper aims to develop the recently introduced Spilt-Source Inverter (SSI) topology to improve its boosting characteristics. New SSI topologies with high voltage gain are introduced in this paper. The proposed converters square the basic SSI's boosting factor by utilizing an additional inductor, capacitor, and two diodes. Thus, the proposed converters are called Quadratic-Boost (or Square-Boost) SSIs (QBIs or SBIs). Four different QBI topologies are presented. One with continuous input current (CC-QBI), and the other draws a discontinuous input current (DC-QBI) but with reduced capacitor voltage stresses. This paper also introduces the small-signal model of the CC-QBI using state variables perturbance. Based on this model, the closed-loop voltage and current control approach of the dc-boosting factor are designed. Moreover, a modified space vector modulation (MSVM) scheme is presented to reduce the input current ripples. To evaluate the performance of the proposed topologies, a comparative study between them and the other counterpart from different perspectives is introduced. It can be found that the CC-QBI topology has superior boosting characteristics when operating with low input voltage compared with their counterparts. It has a higher boosting capability, lower capacitor voltages, and semiconductor stresses, especially when high voltage gains are required. These merits make the proposed topologies convenient to the Photovoltaic and Fuel-Cell systems. Finally, the feasibility of the suggested topology and the introduced mathematical model is verified via simulation and experimental results, which show good accordance with the theoretical analysis.INDEX TERMS Split-source inverters (SSI), quasi-z source inverters, dc-ac boost converter, space-vector PWM.

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A Family of Discontinuous PWM Strategies for Quasi Z-Source Nine-Switch Inverters

Abstract: Date of publication xxxx 00, 0000, date of current version xxxx 00, 0000.

Cited by 8 publications

References 28 publications

Analysis and Control of Simplified Dual-Output Single-Phase Split-Source Boost Inverters

Analysis and Control of Simplified Dual-Output Single-Phase Split-Source Boost Inverters

Performance Analysis and Evaluation of Multiphase Split-Source Inverters

Modeling and Control of Single-Stage Quadratic-Boost Split Source Inverters

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