Results 11 to 20 of about 136,891 (188)

Secure High DER Penetration Power Distribution Via Autonomously Coordinated Volt/VAR Control [PDF]

open access: yes, 2020
Traditionally voltage control in distribution power system (DPS) is performed through voltage regulating devices (VRDs) including on load tap changers (OLTCs), step voltage regulators (SVRs), and switched capacitor banks (SCBs). The recent IEEE 1547-2018
Joseph, Anto   +2 more
core   +1 more source

Linear-assisted DC/DC converters with modified current-mode control applied to photovoltaic solar systems [PDF]

open access: yes, 2014
This article shows the proposal of a current-mode one-cycle control for linear-assisted DC/DC converters. Linearassisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems ...
Martínez García, Herminio
core   +1 more source

Suppression of Second-Order Harmonic Current for Droop-Controlled Distributed Energy Resource Converters in DC Microgrids [PDF]

open access: yes, 2020
Droop-controlled distributed energy resource converters in dc microgrids usually show low output impedances. When coupled with ac systems, second-order harmonics typically appear on the dc-bus voltage, causing significant harmonic currents at the ...
Caldognetto, Tommaso   +3 more
core   +1 more source

Active distribution network with efficient utilisation of distributed generation ancillary

open access: yesIET Smart Grid, 2018
This study introduces an active distribution network with high penetration of inverter-based distributed generations (IBDGs) to improve the steady state, dynamic and transient performance of the distribution network.
Desmond O. Ampofo   +2 more
doaj   +1 more source

Unbalanced Voltage Compensation with Optimal Voltage Controlled Regulators and Load Ratio Control Transformer

open access: yesEnergies, 2021
Penetration of equipment such as photovoltaic power generations (PV), heat pump water heaters (HP), and electric vehicles (EV) introduces voltage unbalance issues in distribution systems.
Akito Nakadomari   +6 more
doaj   +1 more source

Stand-alone excitation synchronous wind power generators with power flow management strategy

open access: yesThe Journal of Engineering, 2014
This study presents a stand-alone excitation synchronous wind power generator (SESWPG) with power flow management strategy (PFMS). The rotor speed of the excitation synchronous generator tracks the utility grid frequency by using servo motor tracking ...
Tzuen-Lih Chern   +6 more
doaj   +1 more source

Supercapacitor assisted LDO (SCALDO) techniquean extra low frequency design approach to high efficiency DC-DC converters and how it compares with the classical switched capacitor converters [PDF]

open access: yes, 2013
Supercapacitor assisted low dropout regulators (SCALDO) were proposed as an alternative design approach to DC-DC converters, where the supercapacitor circulation frequency (switching frequency) is in the order of few Hz to few 10s of Hz, with an output ...
Kankanamge, Kosala, Kularatna, Nihal
core   +3 more sources

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

An Effective Coordination Strategy for Voltage Regulation in Distribution System Containing High Intermittent Photovoltaic Penetrations

open access: yesIEEE Access, 2021
In recent years, with increasing the penetration of renewable-based distributed generations, voltage control plays a vital role in operating distribution systems.
Ahmed Bedawy   +3 more
doaj   +1 more source

Active and reactive power coordination control strategy of overvoltage for distributed PV integrated grid

open access: yesThe Journal of Engineering, 2019
Aiming at the voltage rise due to the photovoltaic generation system (PVGS) at the point of common coupling (PCC), the cause is analysed with power transmission theory. Here, the principle and strategies of voltage regulation based on active and reactive
Song Tuo, Duan Jiandong, Xiang Ma
doaj   +1 more source

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