Results 11 to 20 of about 1,522 (120)

Design of cooling structure improvement of hybrid commutated converter valve

open access: yesHigh Voltage
This paper presents a thermal management framework for 120 kV hybrid commutated converter (HCC) valves, addressing critical cooling challenges in multi‐hundred‐MW power conversion systems.
Xu He   +7 more
doaj   +2 more sources

Analytical‐Numerical Hybrid Solution for Transient Thermal Analysis of the Outer Gate IGCT Considering Electrical‐Thermal Coupling

open access: yesIET Power Electronics
The integrated‐gate commutated thyristor (IGCT), known for its low conduction losses and high reliability, is increasingly favoured in high‐voltage and high‐power applications. The junction temperature is a critical determinant of reliability, making the
Naihang Lyu   +7 more
doaj   +2 more sources

A Novel Phase‐Shifted Modulation for Balancing Current Stress During Startup of High‐Power Full‐Bridge DC/DC Converters

open access: yesThe Journal of Engineering
Traditional duty‐cycle or phase‐shift modulation is inadequate for achieving a balanced current‐stress distribution during the startup of full‐bridge DC/DC converters. As converter power capacity increases, these limitations not only restrict the startup
Yiqing Ma   +4 more
doaj   +2 more sources

Design strategy of IGCT clamp circuit parameters based on bi-objective nonlinear optimization

open access: yesEnergy Reports, 2022
The integrated gate commutated thyristor (IGCT) is a high-power semiconductor device with excellent performance, whose operating characteristics are governed by the clamp circuit.
Tao Jiang, Xiaotao Han, Shaozhe Zhang
doaj   +1 more source

Research on the loss characteristics of high-voltage cascaded energy storage systems based on IGCTs

open access: yesFrontiers in Energy Research, 2023
High-voltage cascaded energy storage systems have become a major technical direction for the development of large-scale energy storage systems due to the advantages of large unit capacity, high overall efficiency, satisfactory economy, reliable safety ...
Yushuo Chen   +6 more
doaj   +1 more source

A converter-assisting flexible switch topology and its control strategy

open access: yes电力工程技术, 2023
The rapid development of new energy in the distribution network increases its flexibility while making it more complicated to operate and manage the network.
FANG Rengcun   +5 more
doaj   +1 more source

An AC Current Limiting and Interrupting Device for Low Voltage Systems [PDF]

open access: yesPort Said Engineering Research Journal, 2016
This paper describes the development of the hybrid fault current limiter and interrupting device (HCLID) which can be used successfully as a fast short-circuit protection means for low voltage AC industrial installations. The main components of the HCLID
Saady Hasan   +3 more
doaj   +1 more source

Neural network based robust optimal energy control of pulse width modulation‐inverter fed motor driving pump

open access: yesIET Electric Power Applications, Volume 17, Issue 10, Page 1334-1346, October 2023., 2023
This paper revisits loss model control (LMC) of the 3‐phase induction motor (IM) and presents a robust LMC algorithm for medium‐sized pump drives. Compared with other power loss reduction algorithms for IM, the presented one has the advantages of fast and smooth flux adaptation, high accuracy, and versatile implementation.
Osama S. Ebrahim   +4 more
wiley   +1 more source

Hybrid Modular Multilevel Converter With Arm-Interchange Concept for Zero-/Low- Frequency Operation of AC Drives

open access: yesIEEE Access, 2020
DC-AC Modular Multilevel Converter (MMC) is a promising candidate for high-power AC drive applications. The main challenge of operating the MMC in AC drive applications is its performance during low-frequency conditions, as high voltage ripple is ...
Ahmed Elserougi   +3 more
doaj   +1 more source

High-power active devices [PDF]

open access: yes, 2006
Very high-power (HP) electronics represents a small part of the electronics market. In semiconductor terms, HP represents a world device market of 600 million euros out of a total 200 billion euros for all semiconductors—a mere 0.3 per cent. At the multi-
Carroll, E
core   +1 more source

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