An Efficient Zero-Voltage Switching Resonant Pole Inverter With High Reliability

Wang, Qiang; Li, Liang; Wang, Youzheng

doi:10.1109/tcsii.2022.3196060

Cited by 8 publications

(1 citation statement)

References 9 publications

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“…Zero-voltage switching is performed around the voltage zero-point and the shortcircuit current is quite small. Therefore, the zero-voltage switching can ensure the stable switching operation of the IGBT and reliably eliminate switching losses [28,29].…”

Section: Introductionmentioning

confidence: 99%

Design of Step Voltage Regulator Based on IGBT

Lee,

Kim,

Park

et al. 2024

Energies

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The introduction of distributed generation (DG) into distribution systems is expanding due to carbon neutral policies. DG with intermittent output characteristics brings frequent voltage variations in distribution systems. Generally, a step voltage regulator (SVR) is installed in the long distribution line and controls its voltage, which has limits of stable voltage regulations due to the slow tap-changing rate, switching losses, and short life span. To solve those problems, this paper proposes an IGBT-based SVR using zero-voltage switching. It is verified that the stable operation can be obtained through simulation by PSCAD/EMTDC 4.6 software and empirical experiments.

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Section: Introductionmentioning

confidence: 99%

Design of Step Voltage Regulator Based on IGBT

Lee,

Kim,

Park

et al. 2024

Energies

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An efficient three‐phase two‐level voltage source inverter with the suppression of the dead time effect

Wang,

Gong,

Wang

2024

Circuit Theory & Apps

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The paper carries out the research on a novel two‐level voltage source inverter to further improve the output power quality of the inverter under the premise of efficient operation. Main switches can realize zero‐voltage switching in a wide load range to ensure the efficient operation of the designed inverter. Total harmonic distortion (THD) of the output current at low output frequencies can be improved by the modification of resonant tanks in the designed inverter. In the dead time, the modified resonant tanks can result in a shorter duration of nonlinear changes in the output phase voltage at lower load current, which is beneficial for reducing the output voltage error caused by dead time. The improved power quality at low output frequencies is conductive to the use of the designed inverter in the drive system of the low‐speed AC motor. The paper expounds every operating status during a switching period. The experiment manifests that switches realize soft switching. The efficiency of the designed inverter reaches 98.6% at rated operation state, which is 0.3% and 0.5% more than that of two comparison objects, respectively. Moreover, when the output frequency reduces to 5 Hz, the THD of the output current is only 2%, which is also less than that of comparison objects. Hence, the designed inverter has advantages in the efficiency and the output power quality.

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A SiC MOSFET-Based Auxiliary Resonant Commutated Pole Inverter with Simple Auxiliary Resonant Circuit and Improved Modulation Strategy

Song,

Yang,

et al. 2023

2023 26th International Conference on Electrical Machines and Systems (ICEMS)

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An Efficient Zero-Voltage Switching Resonant Pole Inverter With High Reliability

Cited by 8 publications

References 9 publications

Design of Step Voltage Regulator Based on IGBT

Design of Step Voltage Regulator Based on IGBT

An efficient three‐phase two‐level voltage source inverter with the suppression of the dead time effect

A SiC MOSFET-Based Auxiliary Resonant Commutated Pole Inverter with Simple Auxiliary Resonant Circuit and Improved Modulation Strategy

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