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Reactive power and voltage control in deregulated environment [PDF]

2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005
Reactive power support and Voltage control is a key type of ancillary services In the deregulated electrical power market. A review of some important issues of reactive power support, Including cost analysis, reactive power pricing, valuation, is ...
Ni, Y, Zhong, J, Zhao, D, Chen, S
core   +3 more sources

Research on Reactive Power Hierarchical Coordination Optimization Control Strategy of Wind‐Photovoltaic Hybrid Grid‐Connected System

IET Renewable Power Generation
Currently, reactive power compensation in wind‐photovoltaic (PV) hybrid grid‐connected systems is typically controlled independently by the wind farm and PV station, lacking a coordination mechanism between them.
Hong Zhang, Qianwei Xi, Lei Chen, Ling Hao, Yong Min, Xiongxiong Fan, Wenjing Fang, Nan Tian, Fei Xu   +8 more
doaj   +1 more source

About the Possibility of Power Controlling in the Three-Phase Electric Arc Furnaces Using PSCAD EMTDC Simulation Program

Advances in Electrical and Computer Engineering, 2007
The electric arc is a nonlinear element. For this reason it must be used special techniques of modeling the electric arc that should reflect as closely as possible the behavior of the real electric arc.
PANOIU, M., PANOIU, C., SORA, I., OSACI, M.   +3 more
doaj   +1 more source

Reactive Power Management in Renewable Rich Power Grids: A Review of Grid-Codes, Renewable Generators, Support Devices, Control Strategies and Optimization Algorithms

IEEE Access, 2018
Power electronic converter (PEC)-interfaced renewable energy generators (REGs) are increasingly being integrated to the power grid. With the high renewable power penetration levels, one of the key power system parameters, namely reactive power, is ...
Mohammad Nazmul Islam Sarkar, Lasantha Gunaruwan Meegahapola, Manoj Datta   +2 more
doaj   +1 more source

A New Self-Adaptive Teaching–Learning-Based Optimization with Different Distributions for Optimal Reactive Power Control in Power Networks

, 2022
Teaching–learning-based optimization has the disadvantages of weak population diversity and the tendency to fall into local optima, especially for multimodal and high-dimensional problems such as the optimal reactive power dispatch problem.
Ali S. Alghamdi
core   +1 more source

Reactive Voltage Control Strategy for PMSG-Based Wind Farm Considering Reactive Power Adequacy and Terminal Voltage Balance

, 2022
To improve the ability of the power system to accommodate high penetration wind power, wind turbines (WTs) need to realize the mode transformation from grid-following to grid-forming, thus actively participating in the voltage regulation of the power ...
Jianfeng Dai, Ping Chang, Lin Liu, Xia Zhou, Lei Wan   +4 more
core   +1 more source

Negative-Sequence Reactive Power Control and Active Power Control for DC/3ϕ Power Conversion Using Single-Delta Bridge-Cell (SDBC) Converter

IEEE Access
This paper focuses on a DC/ $3\phi $ power converter combining the single-delta bridge-cell (SDBC) converter and a single-phase PWM converter via a medium-frequency transformer for voltage flicker mitigation.
Atsuya Suzuki, Makoto Hagiwara, Yu-Chen Su   +2 more
doaj   +1 more source

Coordinated Reactive Power Optimal Control Considering the Voltage Security of Wind Farm

IET Smart Grid
With the increasing penetration of wind farms (WFs) in power systems, they are demanded to support reactive power to guarantee the economical operation of power grids.
Guanhui Li, Wen Zhang, Qi Zhao, Mingkui Wei, Li Shen, Qinyong Zhou, Yiying Gao   +6 more
doaj   +1 more source

Enhanced Singular Value Decomposition Modulation Technique to Improve Matrix Converter Input Reactive Power Control

Energies
Matrix converters (MC) offer a compact, bidirectional solution for power conversion; however, achieving precise reactive power control at the input terminals remains challenging under varying operating conditions. This paper presents an enhanced Singular
Luis Ramon Merchan-Villalba, José Merced Lozano-García, Alejandro Pizano-Martínez, Iván Abel Hernández-Robles   +3 more
doaj   +1 more source

An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system

The Journal of Engineering, 2019
When rectifier station of line-commutated converter based high-voltage direct transmission current has power fluctuations running at large load, reactive power compensator controlled in groups at rectifying station are switched frequently.
Zijia Hui, Zhiguo Hao, Ya Zhang, Hongsen Zou, Xiaojun Yu, Zhiyuan Liu   +5 more
doaj   +1 more source