Results 1 to 10 of about 12,526 (222)
This study explores fault diagnosis methods for PWM inverters in a wind energy conversion system using a doubly fed induction generator. Two intelligent diagnostic techniques, fuzzy resonant logic and artificial neural networks, are proposed. The fuzzy logic method monitors inverter faults in real time, whereas the neural network method uses 3D feature
Sakina Aoun +7 more
wiley +1 more source
Study on the Switching Time-Variation of Simultaneously Controlled IGBT: Case of Defibrillators Design [PDF]
Samples of integrated gain bipolar transistors (IGBT) of the same type but produced under different technologies were tested about the switching time-variation.
Mudrov T., Kostov J.
doaj
This study introduces a new modular multilevel inverter that can produce five levels of positive voltage using only six power switches and five DC voltage sources. The basic unit is composed of a single‐ and double‐source (SDS) unit. SDS reduces the number of power electronic components, such as the insulated gate bipolar transistors, freewheeling ...
Naser Fakhri +4 more
wiley +1 more source
Loss Characteristics of 6.5 kV RC-IGBT Applied to a Traction Converter
6.5 kV level IGBT (Insulated Gate Bipolar Transistor) modules are widely applied in megawatt locomotive (MCUs) traction converters, to achieve an upper 3.5 kV DC link, which is beneficial for decreasing power losses and increasing the power density ...
Xianjin Huang +4 more
doaj +1 more source
A nine‐level T‐type inverter (9L‐TTI) with voltage boost capability
A new multi‐level inverter topology with boosting feature considering the reduced switch count has been presented, compared and validated. Abstract This paper introduces a 9L T‐type boost inverter (9L‐TTI) based multilevel topology, which generates a nine‐level output voltage in the boost mode.
Zarren Firdous +5 more
wiley +1 more source
A three‐phase three‐level converter with shared flying capacitors
Three‐phase multilevel converters use a high number of components which increases their size. As specific weight reduction is a work of interest for embedded system applications, this paper presents a topology aiming to optimize volume and mass for a three‐level three‐phase inverter. The number of passive and active components is reduced thanks to the ‘
Maxime Pain +2 more
wiley +1 more source
IGBTs: Concept, Development and New Structures
The insulated gate bipolar transistor (IGBT) is arguably the most innovative power device today. It is the only device concept known today that incorporates in a single cell a MOSFET with a bipolar junction transistor, whereby both devices are active in ...
Florin Udrea
doaj
Efficient Control of IGBT Transistor as Part of Overvoltage Protection
The paper analyzes the phenomena of appearance of overvoltage during the switching-off of the IGBT transistor which arecaused by the presence of parasitic inductance in the switching circuit. This problem can be solved in two ways – by preventing thecause of the overvoltage, or by limiting the overvoltage level.
Nenad Jovančić +2 more
openaire +2 more sources
An innovative switched‐capacitor‐based inverter is proposed in this article. The suggested converter can produce a five‐level output voltage by utilizing minimal components (single dc source, six switches, and one capacitor). The effectiveness of the suggested inverter is verified by experimental results using hardware in loop OPAL‐RT OP4510.
Tamiru Debela +2 more
wiley +1 more source
Three IGBT short circuit types had been introduced. The short circuit type 2 had been enhanced through optimization of theIGBT transistor gain to withstand higher short circuit current.
LIU Guo-you +5 more
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