A Class of Quasi-Switched Boost Inverters

Nguyen, Minh-Khai; Le, Tuan-Vu; Park, Sung-Jun; Lim, Young‐Cheol

doi:10.1109/tie.2014.2341564

Cited by 226 publications

(198 citation statements)

References 24 publications

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“…The circuit consists of one inductor (L), one capacitor (C), six diodes, five active switches, and a passive load (R and L l ). The two topologies utilize the same components as those utilized by the basic SBI topologies presented in [23]. Under lossless conditions, the fundamental voltage and current of AC output for a single-phase qSBI are v o = V m sin(ωt) and i o = I m sin(ωt + Φ), respectively, where ω is the angular frequency, Φ is the impedance angle, and V m and I m are the peak values of the AC output voltage and current, respectively.…”

Section: Single-phase Qsbi Under Small Shoot-through Duty Cycle Operamentioning

confidence: 99%

“…Compared to ZSI, qZSI improves the input current and reduces the capacitor voltage rating. Like ZSI/qZSIs, switched-boost inverters (SBIs) [20][21][22][23][24][25][26] also use the shoot-through time interval to achieve single-stage power conversion with buck-boost characteristics and improve reliability. In comparison with ZSIs, SBIs use one more active switch and fewer passive components [20].…”

Section: Introductionmentioning

confidence: 99%

“…In the basic SBI topology [22], the input current is discontinuous and its boost factor is lower than that of ZSIs. Quasi-switched boost inverters (qSBIs) [23,24] overcome the shortcomings of conventional SBIs by improving the profile of the input current and reducing the voltage stress of the capacitor. In [25], the concept of a switched inductor is applied to the SBI topologies to improve the boost factor.…”

Section: Introductionmentioning

confidence: 99%

“…During the shoot-through state, the Because a shoot-through interval is also applied to SBIs to boost the DC-link voltage, the PWM control strategy used for SBIs is the same as that used for ZSIs. In the single-phase SBI [20][21][22][23][24][25], a simple boost PWM control method is usually used. When a high modulation index is used to improve the output voltage quality, the shoot-through duty cycle must be reduced and an undesirable mode appears in the non-shoot-through state of the single-phase SBI.…”

Section: Introductionmentioning

confidence: 99%

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Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters

Nguyen

Choi

2017

Energies

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Abstract:The maximum boost control method for a single-phase switched-boost inverter (SBI) and single-phase Z-source inverter (ZSI) is proposed in this paper. In the proposed method, the low frequency voltage is added to the constant voltage for generating the variable shoot-through time intervals. For improving the AC output quality of the inverter, an active power switch is used to replace one of the diodes in the single-phase SBI. The operating principles and circuit analysis using the proposed maximum boost control method for single-phase inverters are presented. Laboratory prototypes are built to verify the operation of the proposed pulse-width modulation (PWM) control method for both single-phase quasi-ZSI and single-phase quasi-SBI.

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Section: Single-phase Qsbi Under Small Shoot-through Duty Cycle Operamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters

Nguyen

Choi

2017

Energies

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“…So heat is produced due to Joule's effect. At first to explain the steady state operation of a modified switched boost inverter, it is assumed that shoot through condition is intentionally created in the inverter for a duration of DT S in a switching cycle of T S [12][13][14]. During this shoot through state the switch S is turned on.…”

Section: Analysis Of Modified Switched Boost Hybrid Resonant Invertermentioning

confidence: 99%

A novel circuit topology of modified switched boost hybrid resonant inverter fitted induction heating equipment

Bhattacharya

Sit

Sadhu

et al. 2016

Archives of Electrical Engineering

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Abstract:A novel circuit topology of modified switched boost high frequency hybrid resonant inverter fitted induction heating equipment is presented in this paper for efficient induction heating. Recently, induction heating technique is becoming very popular for both domestic and industrial purposes because of its high energy efficiency and controllability. Generally in induction heating, a high frequency alternating magnetic field is required to induce the eddy currents in the work piece. High frequency resonant inverters are incorporated in induction heating equipment which produce a high frequency alternating magnetic field surrounding the coil. Previously this high frequency alternating magnetic field was produced by voltage source inverters. But VSIs have several demerits. So, in this paper, a new scheme of modified switched boost high frequency hybrid resonant inverter fitted induction heating equipment has been depicted which enhances the energy efficiency and controllability and the same is validated by PSIM.

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Aquasi‐Z‐sourceinverter with a singlehigh‐frequency‐switch

Mohammadi

Mirzaee

Moghani

et al. 2021

Int Trans Electr Energ Syst

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SUMMARY In this paper, a high efficiency quasi‐Z‐source inverter with a single high‐frequency switch is proposed to achieve a high efficiency and more compact topology. The converter utilizes a single high‐speed GaN FET. In the proposed converter, four switches operate with low frequency sinusoidal pulse width modulation while the fifth switch short circuits the inverter switch‐legs with a high switching frequency and prepares the shoot‐through current path. The operation of the fifth switch in high switching frequency helps the inverter to operate with modulation index equal to unity. Also, the impedance network operates in high switching frequency, which makes it possible to decrease the components' size. The operation principles, efficiency, and switches' losses of the proposed converter are investigated analytically. A comparison between theoretical and simulation results is performed to validate the theoretical description of the inverter. To validate the well‐behavior of the inverter under various operation modes, the performance of the proposed converter is examined under different types of load. Moreover, loss breakdown and efficiency comparisons are utilized to show improvements with respect to the conventional inverter. The performance of the converter has been examined and validated through a 300 W prototype of the inverter.

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A Class of Quasi-Switched Boost Inverters

Cited by 226 publications

References 24 publications

Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters

Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters

A novel circuit topology of modified switched boost hybrid resonant inverter fitted induction heating equipment

Aquasi‐Z‐sourceinverter with a singlehigh‐frequency‐switch

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