20-kW Zero-Voltage-Switching SiC-mosfet Grid Inverter With 300 kHz Switching Frequency

He, Ning; Chen, Min; Wu, Junxiong; Zhu, Nan; Xu, Dehong

doi:10.1109/tpel.2018.2866824

Cited by 113 publications

(28 citation statements)

References 33 publications

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“…11. The ZVS inverter prototype in [19] shows a high efficiency of 98.6% at a 300 kHz switching frequency compared to that of the hard-switching topology operating at a 100 kHz switching frequency with a similar conversion efficiency. Another important circuit topology used in distributed and centralized PV generation systems is the string inverter [20].…”

Section: Integration Of Renewable Energymentioning

confidence: 96%

Soft-switching SiC power electronic conversion for distributed energy resources and storage applications

Shi

Deng

Zhao

et al. 2019

J. Mod. Power Syst. Clean Energy

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Power electronic conversion plays an important role in flexible AC or DC transmission and distribution systems, integration of renewable energy resources, and energy storage systems to enhance efficiency, controllability, stability, and reliability of the grid. The efficiency and reliability of power electronic conversion are critical to power system applications. One way to enhance the efficiency and reliability of power electronic conversion is soft-switching technology. This paper introduces a generic zero-voltage-switching (ZVS) technique based on silicon carbide (SiC) power device. Using the proposed ZVS technique, all semiconductor switching devices in a power converter can realize ZVS operations. Next, the applications of the ZVS technique in different power electronic conversion systems such as photovoltaic inverters, wind power systems, energy storage systems and flexible AC transmission system devices are discussed. Finally, as an example, the operation performance and efficiency improvement of a SiC metal-oxide-semiconductor field-effect transistor (MOSFET) ZVS back-to-back converter are discussed.

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Section: Integration Of Renewable Energymentioning

confidence: 96%

Soft-switching SiC power electronic conversion for distributed energy resources and storage applications

Shi

Deng

Zhao

et al. 2019

J. Mod. Power Syst. Clean Energy

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“…The AC auxiliary-resonant-circuits-based soft-switching topologies are also named as the auxiliary resonant commutated pole (ARCP) converters [27], [28]; the main issue is that complex auxiliary switches, inductors, and capacitors are required, particularly for multiphase systems. By contrast, the DC-link auxiliaryresonant-circuit-based soft-switching topologies [25], [26] feature a lower number of auxiliary components; however, the voltage stress of switches is higher than the DC-link voltage, e.g., 1.1-2.5 times, and thus, the loop inductance must be maintained low to avoid high voltage overshoots.…”

Section: Introductionmentioning

confidence: 99%

Quadrilateral Current Mode Paralleling of Power MOSFETs for Zero-Voltage Switching

Shen

Jiang

Zhao

et al. 2021

IEEE Trans. Power Electron.

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This paper proposes a generic zero-voltage switching (ZVS) scheme for parallel power MOSFETs. Uncoupled or inversely-coupled differential-mode (DM) commutation inductors are added to the midpoints (AC terminals) of parallel MOSFET half-bridges (HBs), and a time-delay-based control scheme is applied, generating a circulating current flowing through these commutation inductors. Thus, the inductor currents are reshaped as quadrilaterals, which enable all the parallel transistors to achieve ZVS. The mode of operation of the proposed paralleling technique is entitled quadrilateral current mode (QCM) due to the quadrilateral-shaped commutation inductor currents. The operating principle of the QCM-paralleling technique is detailed mathematically, yielding accurate closed-form analytical expressions for modulation parameters. Finally, simulations and experimental results of a QCM-enabled synchronous Buck dc-dc converter are presented to validate the theoretical considerations. Index Terms-Parallel power MOSFETs, zero-voltage switching (ZVS), quadrilateral current mode (QCM)

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“…The gallium nitride and silicon carbide semiconductors offer fundamental advantages over silicon solutions, in particular, the higher critical electrical field and smaller capacitances compared to silicon switches [26]- [31]. The switching frequency of these power semiconductors can be very high compared to the silicon counterparts, which makes these devices great for high-frequency application [32], [33]. Elimination of the trigonometry and angles from the algorithm, due to their computing time, allows us to implement the proposed CMC control in FPGA digital structures using the standard function blocks.…”

Section: Introductionmentioning

confidence: 99%

Application of Analytic Signal and Smooth Interpolation in Pulsewidth Modulation for Conventional Matrix Converters

Szczepankowski

Wheeler

Bajdecki

2020

IEEE Trans. Ind. Electron.

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20-kW Zero-Voltage-Switching SiC-mosfet Grid Inverter With 300 kHz Switching Frequency

Cited by 113 publications

References 33 publications

Soft-switching SiC power electronic conversion for distributed energy resources and storage applications

Soft-switching SiC power electronic conversion for distributed energy resources and storage applications

Quadrilateral Current Mode Paralleling of Power MOSFETs for Zero-Voltage Switching

Application of Analytic Signal and Smooth Interpolation in Pulsewidth Modulation for Conventional Matrix Converters

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