Results 251 to 260 of about 9,769 (296)

Active-neutral-point-clamped (ANPC) multilevel converter technology

2005 European Conference on Power Electronics and Applications, 2005
This paper proposes a multilevel power conversion concept based on the combination of neutral-point-clamped (NPC) and floating capacitor converters. In the proposed scheme, the voltage balancing across the floating capacitors is achieved by using a proper selection of redundant switching states, and the neutral-point voltage is controlled by the ...
P. Barbosa, P. Steimer, J. Steinke, M. Winkelnkemper, N. Celanovic   +4 more
openaire   +1 more source

An Interleaved Active Neutral-Point Clamped Nine-Level Converter

2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020
With the increasing proportion of photovoltaic power generation in the power structure, the demand for affordable grid-connected photovoltaic power generation is becoming increasingly urgent. Using 1500V photovoltaic module can effectively reduce the cost and loss of cable in photovoltaic power plant, which is very important for the early realization ...
Yu Cao, Rui Li
openaire   +1 more source

Three-Leg Fault-Tolerant Neutral-Point-Clamped Converter

2007 IEEE International Symposium on Industrial Electronics, 2007
This paper presents a study of the fault tolerance capacity of a neutral-point-clamped (NPC) converter. Furthermore, two possible solutions are presented. In these solutions, adding a reduced number of additional components, the behavior of the converter when a switch fails improves considerably.
Salvador Ceballos, Josep Pou, Eider Robles, Jordi Zaragoza, Jose Luis Martin   +4 more
openaire   +1 more source

Novel 3-level Hybrid Neutral-Point-Clamped Converter

IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011
This paper introduces a novel 3-level Voltage Source Converter (VSC) as an alternative to known 3-level topologies, including the conventional Neutral-Point-Clamped Converter (NPCC), many T-type VSCs, and Active NPCC. It is shown that operating in the low converter DC-link voltage range, this new solution can achieve not only higher efficiency than ...
Thiago B. Soeiro, Johann W. Kolar
openaire   +1 more source

Performance Evaluation of Fault-Tolerant Neutral-Point-Clamped Converters

IEEE Transactions on Industrial Electronics, 2010
This paper presents a study of the fault tolerance capacity of a neutral-point-clamped converter. Different faults in power semiconductors are considered, and the available postfault states of the converter are shown. In regard of the operation limits, two possible solutions are presented.
S Ceballos, J Pou, E Robles, J Zaragoza, José Luís Martín   +4 more
openaire   +1 more source

Pulsewidth Modulation of Neutral-Point-Clamped Indirect Matrix Converter

IEEE Transactions on Industry Applications, 2008
An indirect matrix converter is an alternative "all-semiconductor" energy processor proposed recently for converting an ac source with fixed magnitude and frequency to a variable voltage and frequency supply that can meet the requirements of a particular industry application.
Blaabjerg, Frede, Poh Chiang, Loh, Gao, Feng, Baby, Anto, Tan, Desmond Aik Chuan   +4 more
openaire   +2 more sources

Predictive Control of Neutral-Point Clamped indirect matrix converter

2017 Iranian Conference on Electrical Engineering (ICEE), 2017
In this paper, a Neutral-Point Clamped (NPC) based indirect matrix converter is proposed in order to decrease the Total Harmonic Distortion (THD) of the input and load currents. This converter produces three-level output voltages which are suitable for high-power medium-voltage applications.
Arman Farhadi, Ali Zakerian, Arash Nazari   +2 more
openaire   +1 more source

Three-Level Neutral Point Clamped ZVS-PWM Converter

2018
This chapter studies the Three Level, Zero Voltage Switching, Pulse-Width-Modulated (TL-ZVS-PWM) dc–dc converter, which main attribute is that the maximum voltage across the switches is half of the input voltage. After the introduction of the power converter topology, qualitative analysis and description of operation, along with topological states for ...
Ivo Barbi, Fabiana Pöttker
openaire   +1 more source

The New High-Efficiency Hybrid Neutral-Point-Clamped Converter

IEEE Transactions on Industrial Electronics, 2013
This paper introduces a novel three-level voltage-source converter (VSC) as an alternative to known three-level topologies, including the conventional neutral-point-clamped converter (NPCC), many T-type VSCs, and active NPCC. It is shown that, operating in the low converter dc-link voltage range, this new solution not only can achieve higher efficiency
Thiago B. Soeiro, Johann W. Kolar
openaire   +1 more source

DC Component Self-Balancing Analysis of Neutral-Point in Neutral-Point-Clamped Three-Level Converters

2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), 2020
Neutral-point-clamped three-level converter is widely used in high-power, medium-voltage industrial applications. However, NP potential fluctuation is an inherent problem and draws much attention, so that various control schemes have been proposed, considering amplitude of low-frequency NP potential oscillations, switching losses, output voltage ...
Wenchao Wan, Changsong Chen, Shanxu Duan, WenHao Hu, Lei Song   +4 more
openaire   +1 more source