Results 31 to 40 of about 6,187,457 (395)

A power sharing series power BJT array with isolated low voltage control for AC power control applications [PDF]

open access: yes, 2006
A technique for a continuously variable AC resistance using a series BJT array is presented. This array provides high power dissipation capability and uniform voltage and power distribution across the individual transistors. The array, controlled using a
Cho, Paul, Kularatna, Nihal
core   +2 more sources

Safe Off-Policy Deep Reinforcement Learning Algorithm for Volt-VAR Control in Power Distribution Systems

open access: yesIEEE Transactions on Smart Grid, 2020
Volt-VAR control is critical to keeping distribution network voltages within allowable range, minimizing losses, and reducing wear and tear of voltage regulating devices.
Wei Wang, N. Yu, Yuanqi Gao, Jie Shi
semanticscholar   +1 more source

A Review on Materials for Flame Retarding and Improving the Thermal Stability of Lithium Ion Batteries

open access: yesInternational Journal of Electrochemical Science, 2020
Lithium-ion batteries (LIBs), featured by high energy density, high power density, excellent cycle performance and environmental friendliness, are widely used in electric equipment, electric vehicles and energy storage.
Fei Gao   +6 more
doaj   +1 more source

Voltage Multistability and Pulse Emergency Control for Distribution System with Power Flow Reversal [PDF]

open access: yes, 2015
High levels of penetration of distributed generation and aggressive reactive power compensation may result in the reversal of power flows in future distribution grids.
Nguyen, Hung D., Turitsyn, Konstantin
core   +2 more sources

A nearly zero-energy microgrid testbed laboratory: Centralized control strategy based on SCADA system [PDF]

open access: yes, 2020
Currently, despite the use of renewable energy sources (RESs), distribution networks are facing problems, such as complexity and low productivity. Emerging microgrids (MGs) with RESs based on supervisory control and data acquisition (SCADA) are an ...
Carni, D. L.   +5 more
core   +1 more source

Challenges of TSO-DSO Voltage Regulation Under Real-Time Data Exchange Paradigm

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
As conventional power generation units are being replaced with distributed energy resources, operational practices such as voltage regulation and congestion management are expected to be challenging.
MERKEBU ZENEBE DEGEFA   +3 more
doaj   +1 more source

Optimal Sizing of Voltage Control Devices for Distribution Circuit with Intermittent Load [PDF]

open access: yes, 2014
We consider joint control of a switchable capacitor and a D-STATCOM for voltage regulation in a distribution circuit with intermittent load. The control problem is formulated as a two-timescale optimal power flow problem with chance constraints, which ...
Backhaus, Scott   +2 more
core   +2 more sources

Power Distribution Control in Perspective Wheeled Tractor Transmission

open access: yes, 2017
The methodology of the power distribution mechanism parameters determination used as a part of 4th drawbar category tractor transmission is suggested.
R. Didikov, R. Dobretsov, Yu.V. Galyshev
semanticscholar   +1 more source

An Overview on Power Quality Issues and Control Strategies for Distribution Networks With the Presence of Distributed Generation Resources

open access: yesIEEE Access, 2023
Power systems based on centralized production are facing two limitations: the lack of fossil fuels and the need to reduce pollution; Therefore, the importance of distributed generation resources (DGs) has increased by connecting renewable energy systems ...
Darioush Razmi   +5 more
semanticscholar   +1 more source

Research on eigenparameters and detection methods for single‐phase‐to‐ground faults in non‐effectively grounded distribution systems

open access: yesIET Cyber-Physical Systems, 2023
Non‐effectively grounded power distribution systems (NGDS) are widely used in China and other countries. However, over a long time, single‐phase‐to‐ground faults (SGF) have been misjudged or omitted by the monitoring system, threatening the security of ...
Wanxing Sheng, Xiaohui Song
doaj   +1 more source

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