Results 21 to 30 of about 11,950 (180)

Thermal Impedance Model of High Power IGBT Modules Considering Heat Coupling Effects [PDF]

open access: yes, 2014
Thermal loading of Insulated Gate Bipolar Transistor (IGBT) modules is important for the reliability performance of power electronic systems, thus the thermal information of critical points inside module like junction temperature must be accurately ...
Bahman, Amir Sajjad   +2 more
core   +2 more sources

Power loss investigation in HVDC for cascaded H-bridge multilevel inverters (CHB-MLI) [PDF]

open access: yes, 2015
In the last decade, the use of voltage-source multilevel inverters in industrial and utility power applications has been increased significantly mainly due to the many advantages of multilevel inverters, compared to conventional two level inverters ...
Alamri, B, Darwish, M
core   +1 more source

Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]

open access: yes, 2016
This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A.   +3 more
core   +2 more sources

Effect of solder layer crack on the thermal reliability of Insulated Gate Bipolar Transistors

open access: yesCase Studies in Thermal Engineering, 2019
In order to study the thermal reliability of solder layer fatigue damage in Insulated Gate Bipolar Transistors (IGBT), the Finite Element Analysis (FEA) of the crack damage of the solder layer is described.
Mingxing Du   +4 more
doaj   +1 more source

Precise modelling of switching and conduction losses in cascaded h-bridge multilevel inverters [PDF]

open access: yes, 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
core   +1 more source

A Fault-Tolerant T-Type Multilevel Inverter Topology With Increased Overload Capability and Soft-Switching Characteristics [PDF]

open access: yes, 2017
he performance of a novel three-phase four-leg fault-tolerant T-type inverter topology is introduced in this paper. This inverter topology provides a fault-tolerant solution to any open-circuit and certain short-circuit switching faults in the power ...
Demerdash, Nabeel   +4 more
core   +2 more sources

Enhancement of reliability in condition monitoring techniques in wind turbines [PDF]

open access: yes, 2019
The majority of electrical failures in wind turbines occur in the semiconductor components (IGBTs) of converters. To increase reliability and decrease the maintenance costs associated with this component, several health-monitoring methods have been ...
Dinh, Truong Quang   +5 more
core   +1 more source

Partial discharge characteristics of IGBT module in mine frequency converter under step pulse

open access: yes矿业科学学报, 2020
The partial discharge occurs in IGBT device module of mine equipment.which leads to the breakdown of insulation and burns the device.In this paper the causes and characteristics of pd in IGBT module were studied.Therefore, based on the research of ...
Wang Yanwen   +5 more
doaj   +1 more source

Investigation of FACTS devices to improve power quality in distribution networks [PDF]

open access: yes, 2011
Flexible AC transmission system (FACTS) technologies are power electronic solutions that improve power transmission through enhanced power transfer volume and stability, and resolve quality and reliability issues in distribution networks carrying ...
Rehman Shaikh, Muhammad Asim   +1 more
core   +1 more source

Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]

open access: yes, 2015
Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P.   +4 more
core   +2 more sources

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