Results 21 to 30 of about 4,287,450 (289)

The 0.38 kV electrical networks unbalancing operating modes optimization [PDF]

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract The equipment 0.38 kV low-voltage electrical networks is not a satisfactory level. Such electric networks operating modes management is carrying out save energy measures and electricity supply improve efficiency in general largely allows.
I V Naumov   +5 more
openaire   +1 more source

Fault blocking converters for HVDC transmission: a transient behaviour comparison

open access: yesThe Journal of Engineering, 2019
A thorough comparison of the transient behaviours of two state-of-the-art converters suitable for HVDC transmission is presented. The alternate arm and mixed-cell modular multilevel converter topologies both have DC fault blocking capability and are ...
Dimitrios Vozikis   +4 more
doaj   +1 more source

Electro-mechanical braking system spindle unbalance axis trajectory purification and feedback method

open access: yesAdvances in Mechanical Engineering, 2023
The brake disc spindle of the electromechanical braking system will be accompanied by vibration unbalanced fault during the rotation operation, which will affect the braking performance of the brake system.
Huawei Jin   +3 more
doaj   +1 more source

Simulation Analysis of Three Phase Unbalanced Current and Over Compensation of High Voltage Reactor in Transmission Line

open access: yes南方能源建设, 2021
[Introduction] The safe and stable operation of UHV transmission lines is essential to the safety of power grids. When the new substation deconstructs the original long line in the power grid planning and construction, the following problems, such as the
ZHENG Xing, CHEN Yipeng, QI Donghui
doaj   +1 more source

Statcom controls for operation with unbalanced voltages [PDF]

open access: yesIEEE Transactions on Power Delivery, 1998
Voltage sourced static VAr compensators such as the Statcom need to be able to handle unbalanced voltages. Mild imbalance can be caused by unbalanced loads while severe short-term imbalance can be caused by power system faults. A synchronous frame voltage regulator is presented that works even when three phase symmetry is lost. This regulator addresses
C. Hochgraf, R.H. Lasseter
openaire   +1 more source

An Excessive Tap Operation Evaluation Approach for Unbalanced Distribution Networks With High PV Penetration

open access: yesIEEE Transactions on Sustainable Energy, 2021
Recently, utility-scale photovoltaic (PV) plants in remote areas are drastically increasing due to abundant and low-priced land. These remote areas are usually connected to zone substations through long weak feeders with open-delta step voltage ...
F. Bai, R. Yan, T. Saha, D. Eghbal
semanticscholar   +1 more source

The Unbalanced Linguistic Aggregation Operator in Group Decision Making [PDF]

open access: yesMathematical Problems in Engineering, 2012
Many linguistic aggregation methods have been proposed and applied in the linguistic decision‐making problems. In practice, experts need to assess a number of values in a side of reference domain higher than in the other one; that is, experts use unbalanced linguistic values to express their evaluation for problems.
Zou, Li   +3 more
openaire   +3 more sources

The operating behaviour of unbalanced, unpaced merging assembly lines [PDF]

open access: yesRAIRO - Operations Research, 2021
Unbalanced assembly line research has grown in importance because of its increasing applications in emerging economies, reverse logistics and remanufacturing. This paper examines the performance of numerous simulated patterns for reliable unbalanced manual merging assembly lines.
Tom McNamara   +3 more
openaire   +2 more sources

Zero-Sequence Voltage Injection Method for DC Capacitor Voltage Balancing of Wye-Connected CHB Converter under Unbalanced Grid and Load Conditions

open access: yesEnergies, 2021
Leg capacitor energy balancing control is one of the crucial issues for stable operation of a cascaded H-bridge (CHB) converter. Because this topology inherently consists of numerous submodule cells with DC capacitors, the cell voltages and leg capacitor
Jae-Myeong Kim   +2 more
doaj   +1 more source

A Three-Phase Microgrid Restoration Model Considering Unbalanced Operation of Distributed Generation

open access: yesIEEE Transactions on Smart Grid, 2018
Recent severe outages highlight the urgency of improving grid resiliency in the U.S. microgrid formation schemes are proposed to restore critical loads after outages occur.
Zeyu Wang, Jianhui Wang, Chen Chen
semanticscholar   +1 more source

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