Results 21 to 30 of about 14,874,917 (307)

The Influence of VSC–HVDC Reactive Power Control Mode on AC Power System Stability

open access: yesEnergies, 2020
Voltage source converter-based high-voltage direct current (VSC-HVDC) has the advantage of fast and independent controllability on active and reactive power.
Ying Wang   +6 more
doaj   +1 more source

Additional reactive power control and emergency control of the ±1100 kV UHVDC system with a hierarchical connection mode

open access: yesThe Journal of Engineering, 2019
This paper proposes an additional reactive power control strategy and an emergency control strategy for ±1100 kV ultra-high voltage direct current (UHVDC) system with a hierarchical connection mode, in which the inverter station connect to two AC systems
Yongxin Xiong, Wei Yao, Jinyu Wen
doaj   +1 more source

Optimization Control Strategy for Large Doubly-Fed Induction Generator Wind Farm Based on Grouped Wind Turbine

open access: yesEnergies, 2021
This paper proposes a grouped, reactive power optimization control strategy to maximize the active power output of a doubly-fed induction generator (DFIG) based on a large wind farm (WF).
Shijia Zhou, Fei Rong, Xiaojie Ning
doaj   +1 more source

A Digital Controller for Reactivity Monitoring and Power Control

open access: yesScience and Technology of Nuclear Installations, 2023
This paper introduces a controller unit for reactivity monitoring and automatic power control that was designed and constructed for the 500 kW Dalat Nuclear Research Reactor (DNRR). For power control and reactivity calculations, frequency signals from neutron measurement channels of starting and working ranges of the reactor are used.
Van-Tai Vo   +6 more
openaire   +2 more sources

Precise Reactive Power-Voltage Droop Control of Parallel Virtual Synchronous Generators That Considers Line Impedance

open access: yes, 2021
Problems such as high power coupling, low distribution accuracy, and insufficient reactive power-voltage droop accuracy occur when distributed generators are operated in parallel due to the influence of line impedance.
Hongbin Ma   +6 more
core   +1 more source

Compressive Sensing-Based Optimal Reactive Power Control of a Multi-Area Power System

open access: yesIEEE Access, 2017
To deal with the increasing load demand and environmental effects of conventional power devices, power system has become an enlarged complex network with the integration of distributed generators.
Irfan Khan   +3 more
doaj   +1 more source

Reactive Power Compensation in AC Power Systems

open access: yes, 2017
This chapter introduces most widely used reactive power compensators considering the recent advances seen in industrial applications. In order to provide better and deeper knowledge for authors, the basic principles of reactive power compensation and ...
Ersan Kabalci, Kabalcı, Ersan
core   +1 more source

Comparative Review of Reactive Power Estimation Techniques for Voltage Restoration

open access: yesEnergies
With the focus on the growing concern of voltage instability and its inherent risks connected to blackouts, this study addresses the importance of Volt/VAR control (VVC) in maintaining voltage stability, optimizing power factor, and reducing losses.
Natanael Faleiro   +5 more
doaj   +1 more source

Coordinated voltage control for improved power system voltage stability by incorporating the reactive power reserve from wind farms

open access: yesFrontiers in Energy Research, 2023
The absorption and output characteristics of reactive power of the doubly-fed induction generator (DFIG) greatly influence the voltage stability of PCC (Point of Common Coupling) where the wind farms are integrated into the bulk power grid.
Qunying Liu   +4 more
doaj   +1 more source

Research on Reactive Power Coordination Control of Urban Rail Transit Power Monitoring System

open access: yesChengshi guidao jiaotong yanjiu
[Objective] The power supply system of urban rail transit mainly relies on the SVG (static var generator) or reactors in the 110 kV main substation for centralized reactive power compensation. The current control mode does not fully consider the reactive
ZOU Dayun   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy