Results 111 to 120 of about 303 (143)
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Enhanced soft-switched T-type neutral-point clamped (T-NPC) inverter with reduced component number
Review of Scientific InstrumentsThis paper presents an enhanced soft-switched T-type neutral-point clamped inverter featuring a compact active snubber cell that delivers zero-voltage transition turn-on and zero-voltage switching (ZVS) turn-off for the main switches, while auxiliary switches operate with zero-current switching turn-on and ZVS turn-off.
Mehmet Cihat Ozgenel +2 more
openaire +2 more sources
Energy, 2014
This paper is on offshore wind energy conversion systems installed on the deep water and equipped with back-to-back neutral point clamped full-power converter, permanent magnet synchronous generator with an AC link. The model for the drive train is a five-mass model which incorporates the dynamic of the structure and the tower in order to emulate the ...
Seixas, Mafalda +2 more
openaire +3 more sources
This paper is on offshore wind energy conversion systems installed on the deep water and equipped with back-to-back neutral point clamped full-power converter, permanent magnet synchronous generator with an AC link. The model for the drive train is a five-mass model which incorporates the dynamic of the structure and the tower in order to emulate the ...
Seixas, Mafalda +2 more
openaire +3 more sources
2017 Asian Conference on Energy, Power and Transportation Electrification (ACEPT), 2017
A well-known problem of three-level neutral point clamped (NPC) inverter is the voltage imbalance in the dc-link capacitors. This paper proposes the dc-link capacitor voltage balancing method where a common offset voltage is injected. The offset voltage consists of a harmonic voltage and a magnitude difference between the upper and the lower capacitors.
Kyoung-Pil Kang +4 more
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A well-known problem of three-level neutral point clamped (NPC) inverter is the voltage imbalance in the dc-link capacitors. This paper proposes the dc-link capacitor voltage balancing method where a common offset voltage is injected. The offset voltage consists of a harmonic voltage and a magnitude difference between the upper and the lower capacitors.
Kyoung-Pil Kang +4 more
openaire +1 more source
2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019
This paper introduces a new fault-tolerant technique for three-phase three-level inverters based on sinusoidal pulse width modulation (SPWM). The existing fault-tolerant methods mainly depend on using space vector modulation (SVM) to utilize the redundant switching states at low modulation index.
Peter Azer, Saeed Ounie, Mehdi Narimani
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This paper introduces a new fault-tolerant technique for three-phase three-level inverters based on sinusoidal pulse width modulation (SPWM). The existing fault-tolerant methods mainly depend on using space vector modulation (SVM) to utilize the redundant switching states at low modulation index.
Peter Azer, Saeed Ounie, Mehdi Narimani
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IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014
This paper presents a novel DC-link voltage balancing algorithm for a 3-level DC/AC traction inverter drive. In this topology, two DC-link capacitor voltages and three-phase line currents are measured, to generate the control pulses for the traction inverter, based on space-vector pulse width modulation (SV-PWM) scheme.
Abhijit Choudhury +2 more
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This paper presents a novel DC-link voltage balancing algorithm for a 3-level DC/AC traction inverter drive. In this topology, two DC-link capacitor voltages and three-phase line currents are measured, to generate the control pulses for the traction inverter, based on space-vector pulse width modulation (SV-PWM) scheme.
Abhijit Choudhury +2 more
openaire +1 more source
2015 IEEE International Electric Machines & Drives Conference (IEMDC), 2015
This paper presents a performance comparison study between the proposed continuous- and discontinuous-hybrid-PWM (C-HPWM, D-HPWM) based techniques used for neutral point clamped (NPC) 3-level inverter. The H-PWM strategy uses both the advantages of carrier and space vector based PWM strategies.
Abhijit Choudhury +2 more
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This paper presents a performance comparison study between the proposed continuous- and discontinuous-hybrid-PWM (C-HPWM, D-HPWM) based techniques used for neutral point clamped (NPC) 3-level inverter. The H-PWM strategy uses both the advantages of carrier and space vector based PWM strategies.
Abhijit Choudhury +2 more
openaire +1 more source
Improved Performance of a Neutral Point Clamp (NPC) Five -Level-Inverter
2023 9th IEEE India International Conference on Power Electronics (IICPE), 2023openaire +1 more source
Optimal Low Switching Frequency PWM Pattern for a Three-Level Neutral Point Clamped (NPC) Inverter
2023 IEEE Applied Power Electronics Conference and Exposition (APEC), 2023Aathira Karuvaril Vijayan +3 more
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Voltage Control of Flying-Capacitor-Based 7-Level Active Neutral-Point-Clamped (A-NPC) Inverters
IECON 2023- 49th Annual Conference of the IEEE Industrial Electronics Society, 2023openaire +1 more source