Results 11 to 20 of about 342,809 (312)

A Cascaded H-Bridge With Integrated Boosting Circuit [PDF]

open access: yesIEEE Transactions on Power Electronics, 2021
This letter proposes a multilevel inverter (MLI), which can be considered to be belonging to the cascaded H-bridge (CHB) family. In the proposed MLI, some of the H-bridges are connected to dc-sources, whereas most of the H-bridges are connected to only floating capacitors. A boosting circuit is integrated in the CHB, which permits charging the floating
Abderezak Lashab   +6 more
openaire   +2 more sources

Development of Probe for Resistivity Measurement in Borehole of Coal Mine

open access: yesMeikuang Anquan, 2020
To better serve the coalfield geological fine exploration and the disaster prevention and mitigation work in the process of coal mining, a method for measuring the resistivity of the borehole section to identify the geological anomaly area using the ...
MA Bin, DONG Hongbo
doaj   +1 more source

Hardware Evaluation for GaN-Based Single-Phase Five-Level Inverter

open access: yesIEEE Access, 2023
This study aims to assess the performance of Gallium Nitride (GaN)-based inverters in high-power applications through simulations and a hardware-in-the-loop experiment. The focus is on the efficacy of GaN-based inverters for multilevel topologies, a five-
Abdullah Al Hadi   +3 more
doaj   +1 more source

Low capacitance cascaded H-bridge StatCom [PDF]

open access: yes2018 IEEE 4th Southern Power Electronics Conference (SPEC), 2016
The application of Cascaded H-Bridge (CHB) multilevel converter StatCom is well established in the industry. In a conventional CHB StatCom, low frequency ripple on the dc side is limited to 10% by utilizing large capacitance. Having a smaller capaci-tance is advantageous because the system will be smaller, cheaper, and more reliable.
Jeon, Young-Tae   +4 more
openaire   +4 more sources

The Largest Space-Asymmetric-Curved-Single Tower Twisted-Cable-Plane Cable-Stayed Bridge—Tuojiang Bridge of Jinjianren Expressway Phase II Project [PDF]

open access: yes预应力技术, 2023
The Tuojiang Bridge of Jinjianren Expressway Phase II Project is located in Jianyang City and the Eastern New District of Chengdu, all the section length is 4.3 km with a total construction and installation cost of about 1.74 billion yuan.
Yongxian Wu
doaj   +1 more source

A self-powered H-Bridge joule theory circuit for piezoelectric energy harvesting systems

open access: yesPower Electronic Devices and Components, 2022
In this paper, investigation of high direct current/voltage (DC) and power gains using H-Bridge joule theory (HBRJT) circuit with an input voltage of alternating current/voltage (AC) is carried out by avoiding higher switching frequency and additional ...
Mahesh Edla, Mikio Deguchi, Yee Yan Lim
doaj   +1 more source

Design and Application of a Self-Powered Dual-Stage Circuit for Piezoelectric Energy Harvesting Systems

open access: yesIEEE Access, 2021
This paper describes the design and practical application of a dual-stage H-Bridge (DSHBR) circuit to reduce the rectification losses and mitigate ripples in piezoelectric energy harvesting.
Mahesh Edla   +3 more
doaj   +1 more source

Comparison between a Cascaded H-Bridge and a Conventional H-Bridge for a 5-kW Grid-Tied Solar Inverter

open access: yesElectronics, 2023
This paper compares the cost and efficiency of two inverter topologies for a 5-kW grid-connected solar inverter application: the Conventional H-Bridge Inverter (CHB) and the Cascaded H-Bridge Multilevel Inverter (CHBMLI). Emphasis is put on power switches and passive elements with a detailed study of the losses.
Thibault Bertin   +2 more
openaire   +1 more source

Wind Tunnel Measurements of Surface Shear Stress on an Isolated Dune Downwind a Bridge

open access: yesApplied Sciences, 2020
As part of a comprehensive environmental assessment of the Dun-Gel railway project located in Dunhuang city, Gansu Province, China, a wind tunnel experiment was proposed to predict surface shear stress changes on a sand dune when a bridge was built ...
Wenbo Wang   +3 more
doaj   +1 more source

Reduction of DC Capacitor Size in Three-Phase Input/Single-Phase Output Power Cells of Multi-Cell Converters through Resonant and Predictive Control: A Characterization of Its Impact on the Operating Region

open access: yesMathematics, 2023
Cascaded H-bridge drives require using a significant-size capacitor on each cell to deal with the oscillatory power generated by the H-bridge inverter in the DC-link.
Roberto O. Ramírez   +5 more
doaj   +1 more source

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