GaN power transistor switching performance in hard-switching and soft-switching modes

Sojka, Peter; Pipiska, Michal; Frivaldský, Michal

doi:10.1109/epe.2019.8778060

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…Moreover, further works are still necessary to optimize component parameters of the quasi-resonant circuits that should improve the energy efficiency of the considered solutions. It should also be noted that the common use of modern semiconductors produced with wide-gap materials may encourage further wider practical use of soft-switched inverters due to the limitation of problems resulting from the fast switching of transistors [45]. One of the basic methods focused on reducing negative effects resulting from CM voltage impact is the application of passive filters.…”

Section: Review Of Methods Dedicated To CM Voltage Reduction and Limi...mentioning

confidence: 99%

A Review of Reduction Methods of Impact of Common-Mode Voltage on Electric Drives

Turzyński

Musznicki

2021

Energies

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In this survey paper, typical solutions that focus on the reduction in negative effects resulting from the common-mode voltage influence in AC motor drive applications are re-examined. The critical effectiveness evaluation of the considered methods is based on experimental results of tests performed in a laboratory setup with an induction machine fed by an inverter. The capacity of a common-mode voltage level reduction and voltage gradient du/dt limitation is discussed to extend motor bearings’ lifetime and increase motor windings’ safety. The characteristic features of the described solutions are compared and demonstrated using laboratory results.

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Section: Review Of Methods Dedicated To CM Voltage Reduction and Limi...mentioning

confidence: 99%

A Review of Reduction Methods of Impact of Common-Mode Voltage on Electric Drives

Turzyński

Musznicki

2021

Energies

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“…In order to achieve a fast-rising time on a scale of the nanosecond, the inductance of the circuit needs to be maximally reduced. As a result, the soft switching strategy for decreasing switching power loss in high voltage high repetitive pulsed power generators might be limited [56,57]. Moreover, the stray parameters of the circuit may influence pulse forming process.…”

Section: Fast Transition Process and Heat Accumulationmentioning

confidence: 99%

Heat management technology for solid‐state high voltage and high repetitive pulse generators: Towards better effects and reliability

et al. 2023

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Solid‐state high voltage high repetitive pulse generators have a broad prospect in various applications. The high power and high‐frequency operation of the pulse generator suffer from the massive heat dissipation problem, which limits the improvement of the output parameters and even affects the lifetime. This article focuses on heat management technology for high voltage high repetitive pulse generators. Firstly, the typical circuit topology of the high repetitive pulse generators was summarised. From the perspective of different application requirements, the demands of the heat management design were concluded. Moreover, the heat generation characteristics and difficulties of solid‐state high voltage high repetitive pulse generators were analysed. Then, the different state‐of‐art cooling techniques were reviewed, and their applicability and limitations for the high voltage high repetitive generators were discussed. Finally, a flow chart for heat management design was given.

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“…Unfortunately, this method increases the volume and cost of the converter. Therefore, striving for optimal switching frequency schemes without increasing the converter power circuitry [21][22][23]25,26] are being studied for their various structures [22,23], control techniques [21,25], and type of semiconductor switches used [26,[28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Improving the Efficiency of the Shunt Active Power Filter Acting with the Use of the Hysteresis Current Control Technique

Szromba

2023

Energies

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Calculation of the reference waveform for the compensating current generated by the shunt active power filter (ShAPF) can be carried out using various methods. In this article, this calculation is performed indirectly on the basis of tracking and processing of the ShAPF DC-link capacitor voltage. At the same time, the energy stored in this capacitor is used to generate the compensating current. Therefore, the operation of this capacitor during compensation, i.e., changes in energy stored in it and the voltage waveform on its terminals, is characteristic and crucial for the method considered. Once the current reference waveform is determined, it can be generated by ShAPF in various ways, but always using the energy stored in the DC-link capacitor. The power module of the active filter uses transistor switches to realize the required compensating current. During their operation, power losses occur that can be divided into either switching or conduction. The article shows that, in the case of the indirect control method and the hysteresis current control technique used, it is possible to reduce the operating frequency of the switches and the load on the DC-link capacitor. Thanks to this, it is possible to reduce power losses in these elements and extend their lifetime.

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GaN power transistor switching performance in hard-switching and soft-switching modes

Cited by 9 publications

References 15 publications

A Review of Reduction Methods of Impact of Common-Mode Voltage on Electric Drives

A Review of Reduction Methods of Impact of Common-Mode Voltage on Electric Drives

Heat management technology for solid‐state high voltage and high repetitive pulse generators: Towards better effects and reliability

Improving the Efficiency of the Shunt Active Power Filter Acting with the Use of the Hysteresis Current Control Technique

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