Results 21 to 30 of about 342,809 (312)

Analysis of Maximum Load Unbalancing Limits of Cascaded H-Bridge Rectifier Under Unity Power Factor

open access: yesIEEE Access, 2019
In a cascaded H-bridge rectifier (CHBR), the dc capacitor voltages need to be controlled to balance by the voltage balance controller when the loads are unbalanced.
Zhixuan Gao   +5 more
doaj   +1 more source

Vibration Response Analysis of Simply Supported Box Girder Bridge-Maglev Train in Accelerated Test of Changsha Maglev Express

open access: yesAdvances in Materials Science and Engineering, 2020
In order to study and analyze the vibration response of simply supported box girder bridge-maglev vehicle, a 25 m span simply supported box girder bridge of Changsha Maglev Express was selected as the research object.
Xiao Liang   +5 more
doaj   +1 more source

A hybrid DC circuit breaker based on a generalized H-bridge circuit

open access: yesZhejiang dianli, 2023
Given the rapid development of multi-terminal DC power grids and the treatment of DC faults, a high-voltage hybrid DC circuit breaker based on a generalized H-bridge circuit is proposed.
LU Yi   +6 more
doaj   +1 more source

Power Routing for Cascaded H-Bridge Converters [PDF]

open access: yesIEEE Transactions on Power Electronics, 2017
Modular power converters are expected to play a major role in medium- and high-voltage/power applications. Normally, each module processes the same amount of power; however, this does not take into consideration that different modules can have a different remaining useful lifetime. This paper proposes the concept of power routing for cascaded H-bridge (
Youngjong Ko   +3 more
openaire   +2 more sources

Reliability analysis-based investigation of the historical Széchenyi Chain Bridge deck system

open access: yesResults in Engineering, 2022
Before the recent reconstruction, significant corrosion damages were observed on the deck system of the ∼170-year-old Széchenyi Chain Bridge. Therefore, an advanced reliability analysis-based study is executed to assess the risk of failure of the ...
Balázs Kövesdi   +3 more
doaj   +1 more source

Thermal Mapping of Power Semiconductors in H-Bridge Circuit

open access: yesApplied Sciences, 2020
In this paper, a universal H-bridge circuit is used as a loading emulator to investigate the loss and thermal models of the power semiconductor. Based on its operation principle and modulation method, the dominating factors’ (e.g., power factor, loading ...
Dao Zhou   +4 more
doaj   +1 more source

Protection scheme for LVDC distribution network based on stepwise blocking of power electronic transformer

open access: yesIET Renewable Power Generation, 2023
Cascaded H‐bridge power electronic transformers (CHB‐PET) can efficiently connect AC/DC distribution networks, realizing power transmission and electric energy conversion.
Yongfan Guo   +3 more
doaj   +1 more source

Research on Cascaded H-bridge SVG

open access: yesJournal of Networks, 2014
Due to the sharp increase of the non-linear loads, the power quality lagged behind the need for an adequate power system. With a fast response, low loss, low output harmonic current, SVG has become the mainstream of dynamic reactive power compensation devices.
Yannan Yu   +3 more
openaire   +1 more source

Reliability Analysis Based on Markov Model, Economic Feasibility, and Efficiency Comparison for a Cascaded H-Bridge Multilevel Inverter Capable of Generating 27 Levels

open access: yesIEEE Access
A cascaded H-bridge multilevel inverter (CHBMI) can increase the number of output voltage levels by increasing the number of H-bridge modules, thereby achieving low dv/dt stress and good total harmonic distortion (THD).
Seong Jin Lim   +3 more
doaj   +1 more source

Active power decoupling and controlling for single-phase FACTS device

open access: yesThe Journal of Engineering, 2019
Single-phase FACTS device has a bulky and short-life electrolytic capacitor to absorb the ripple pulsating at twice of the line frequency in DC side, resulting in lower power density. This paper introduced a structure of three-phase bridge which added an
Junmin Zhang   +4 more
doaj   +1 more source

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