CCM and DCM analysis of ASC‐qZSIs

Dong, Shuai; Zhang, Qianfan

doi:10.1049/iet-pel.2018.6049

Cited by 10 publications

(6 citation statements)

References 25 publications

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“…Dong and Zhang have presented a novel active-switched-capacitor/inductor quasi-Z-source inverter (ASC-qZSI) with an anti-parallel switch which allows both discontinuous conduction mode (DCM) and continuous conduction mode (CCM).Detailed analysis of the voltage regulation capability, inductor current ripples, switching devices stresses, and converter loss are carried on for CCM and DCM, which are verified through simulation and experimental verification [46].…”

Section: Quasi Z Source Inverter Topologiesmentioning

confidence: 99%

Review of impedance source power converter for electrical applications

Saravanan

Venkatachalam

Borelessa

et al. 2021

IJAAS

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<p>Power electronic converters have been actively researched and developed over the past decades. There is a growing need for new solutions and topography to increase the reliability and efficiency of alternatives with lower cost, size and weight. Resistor source converter is one of the most important power electronic converters that can be used for AC-DC, AC-AC, DC-DC and DC-DC converters which can be used for various applications such as photovoltaic systems, wind power systems, electricity. Vehicles and fuel cell applications. This article provides a comprehensive overview of Z-source converters and their implementation with new configurations with advanced features, emerging control strategies and applications.</p>

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Section: Quasi Z Source Inverter Topologiesmentioning

confidence: 99%

Review of impedance source power converter for electrical applications

Saravanan

Venkatachalam

Borelessa

et al. 2021

IJAAS

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“…where ΔIL is the inductor ripple current. From (16) and (17), it can be seen that the total of inductances L1 and L2 is equal to the inductor in qSB-network of the 2S-qSBI.…”

Section: V3-vst-v2-v1-vst-v6-vst-v1-v2-vst-v3 Vst-v3-v2-v1-v6-vst-v6-mentioning

confidence: 99%

“…To enhance the voltage range of an embedded qSBI and reduce the number of passive elements with reference to the active qZSI, a two-switch qSBI (2S-qSBI) was introduced and verified in [17]- [18], that required two extra switches in the qSB-network, as depicted in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Modulation Techniques for a Modified Three-Phase Quasi-Switched Boost Inverter With Common-Mode Voltage Reduction

et al. 2020

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In a single-stage buck-boost quasi-switched boost inverter (qSBI), the shoot-through state insertion causes high amplitude common-mode voltage. Consequently, the qSBI becomes less attractive in transformerless photovoltaic (PV) systems. In this paper, a novel space vector pulse-width modulation for a modified qSBI is introduced to reduce the magnitude of common-mode voltage and push the modulation index up to 1. By properly choosing the shoot-through interval time, shoot-through states are considered to be inserted for boosting voltage and also reducing the THD value of the output voltage. The mathematical analysis and operating principles of the converter are discussed and verified through PSIM simulations. Finally, an experimental prototype is validated based on a TMS320F28335 DSP microcontroller and a DE0-Nano FPGA digital control platform. INDEX TERMS Z-source inverter, quasi-switched boost inverter, single-stage inverter, common-mode voltage, transformerless PV system, space vector pulse-width modulation.

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“…QZS inverters have the feature that eliminates this weakness of ZS inverters and is enabled to increase and turn the voltage from direct current to alternating current in one stage [1], [2], [15]- [17]. Moreover, the QZS inverter model is preferred because of its wide range of source voltage and fewer circuit components requirements [18]- [21]. In Fig.…”

Section: Qzs Inverter Topologymentioning

confidence: 99%

A Review of Control Methods on Suppression of 2ω Ripple for Single-Phase Quasi-Z-Source Inverter

2020

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One of the disadvantages of the charging systems and voltage regulation systems in alternative energy systems is that when the direct current (DC)/alternative current (AC) or AC/DC conversion is made from the energy source, the energy flow at 2ω frequency between the direct current side and the alternative current side causes ripples in the DC, inductors, and capacitors. The ripples that occur in 2ω frequency increase the harmonic distortion and reduce the efficiency in the photovoltaic energy system. For addressing this problem, different control methods are evaluated in this paper for the elimination of ripples that occur at 2ω frequency, both on the perspective of DC control side and AC control side with a thorough comparative analysis with existing results in the literature. In the present study, the model of Single-Phase Quasi-Z Source (QZS) inverter and closed-loop control methods of the inverter are examined and compared with pulse width modulation (PWM) methods. In addition, the control methods are used to eliminate the ripples at 2ω frequency in the use of inverters, and the advantages and disadvantages of these methods are presented. INDEX TERMS QZS inverter, suppression of 2ω ripple, control methods, pulse width modulation. I. INTRODUCTION

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CCM and DCM analysis of ASC‐qZSIs

Cited by 10 publications

References 25 publications

Review of impedance source power converter for electrical applications

Review of impedance source power converter for electrical applications

Modulation Techniques for a Modified Three-Phase Quasi-Switched Boost Inverter With Common-Mode Voltage Reduction

A Review of Control Methods on Suppression of 2ω Ripple for Single-Phase Quasi-Z-Source Inverter

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