Results 21 to 30 of about 300,081 (358)
Precise modelling of switching and conduction losses in cascaded h-bridge multilevel inverters [PDF]
, 2014 Nowadays, voltage source multilevel inverters are being used extensively in industry due to its many advantages, compared to conventional two level inverters, such as higher output voltage at low switching frequency, low voltage stress(dv/dt), lower ...
Alamri, B, Darwish, M
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Buck Converter with Soft-Switching Cells for PV Panel Applications
Energies, 2016 In power conversion of photovoltaic (PV) energy, a hard-switching buck converter always generates some disadvantages. For example, serious electromagnetic interference (EMI), high switching losses, and stresses on an active switch (metal-oxide ...
Cheng-Tao Tsai, Wang-Min Chen
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Switching Losses Analysis of a Constructed Solar DC-DC Static Boost Converter
Advances in Electrical and Electronic Engineering, 2020 The DC-DC converter is majorly used in several renewable energy applications. It is usually relevant in a hard-switching operating mode at the cost of increasing power losses and declining efficiency.
Weam El Merrassi +2 more
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IEEE Access, 2022 In a 3L-VSI, to realize reference vector, maximum of six switching per sub-cycle are permitted. A similar condition is looked for in 3L-ZSI (z source inverter).
Santosh Sonar +3 more
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Stolen Artwork: Deciding Ownership Is No Pretty Picture [PDF]
, 1993 This thesis analyzes the power losses in induction machines and how the losses depend on the harmonic content of the applied voltages. Two cases are compared, one case where a machine is fed with a sinusoidial voltage and one case with a modular ...
Hayworth, Andrea E.
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The effect of switching transitions on switched capacitor converters losses [PDF]
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, 2012 The contribution of the rise and fall times of switches to the losses of Switched Capacitors Converters was evaluated by an approximate analysis applying the equivalent resistance concept. It was found that switch turn-on and turn-off durations increase the equivalent resistance of the converter and, consequently, the losses, except in the case of ...
M. Evzelman, Shmuel Ben-Yaakov
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SiC/GaN power semiconductor devices: a theoretical comparison and experimental evaluation under different switching conditions [PDF]
, 2017 The conduction and switching losses of SiC and GaN power transistors are compared in this paper. Voltage rating of commercial GaN power transistors is less than 650V while that of SiC power transistors is less than 1200V.
Acanski M. +12 more
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Applied Sciences, 2020 The modeling of conduction and switching losses for insulated gate bipolar transistors (IGBTs) and free-wheeling diodes (FWDs) in automobile applications is becoming increasingly important, especially for the improvement of the system efficiency and the ...
Yuan Zhu +5 more
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Gate-driver circuit with a variable supply voltage to influence the switching losses
The Journal of Engineering, 2019 The lifetime of semiconductor devices used in power electronics depends on the junction temperature. With a suitable junction temperature control system, the lifetime of semiconductor devices is extended.
Johannes Ruthardt +4 more
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± 180° Discontinuous PWM for Single-Phase PWM Converter of High-Speed Railway Propulsion System
Energies, 2020 As high-capacity alternating current/direct current (ac/dc) power conversion systems, single-phase pulse-width modulation (PWM) converters used in high-speed railway propulsion systems adopt high-voltage Insulated-Gate Bipolar Transistors (IGBTs) as ...
Min-Sup Song, In-Ho Cho, Jae-Bum Lee
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