Results 21 to 30 of about 6,538 (231)

A novel hybrid LFC scheme for multi-area interconnected power systems considering coupling attenuation [PDF]

open access: yesScientific Reports
In this paper, a hybrid load frequency control (LFC) scheme is proposed for multi-area interconnected power systems to decouple the intricate double control objectives, by dividing all subareas into the responsible areas and the free areas.
Bing Wang, Yinsheng Li, Yuquan Chen
doaj   +2 more sources

Integrated Control Strategy for Electrolytic Aluminum Load Participation in Frequency Modulation

open access: yesIEEE Access, 2021
The introduction of electrolytic aluminum load in a large-scale power system with complex power station structure is essential for load frequency control (LFC). In this paper, we propose a control strategy for electrolytic aluminum load to participate in
Xin Shen   +3 more
doaj   +1 more source

New trends and future directions in load frequency control and flexible power system: A comprehensive review

open access: yesAlexandria Engineering Journal, 2023
In recent years, the conventional power system is becoming a hybrid power system with increments in the interconnection of Renewable Energy (RE) sources, High Voltage Direct Current (HVDC), and Energy Storage (ES).
Irfan Ahmed Khan   +5 more
doaj   +1 more source

Optimal Ultra-Local Model Control Integrated with Load Frequency Control of Renewable Energy Sources Based Microgrids

open access: yesEnergies, 2022
Since renewable energy sources (RESs) have an intermittent nature, conventional secondary frequency control, i.e., load frequency control (LFC), cannot mitigate the effects of variations in system frequency.
Abualkasim Bakeer   +4 more
doaj   +1 more source

Coordinated intelligent frequency control incorporating battery energy storage system, minimum variable contribution of demand response, and variable load damping coefficient in isolated power systems

open access: yesEnergy Reports, 2021
Maintaining a generation-demand balance becomes more challenging nowadays due to the limited availability of traditional automatic generation control (AGC) and spinning reserves. In response to this concern, the purpose of the proposed paper is to bridge
Amer Al-Hinai   +2 more
doaj   +1 more source

The Discrete Load Frequency Control System Using a Robust Periodic Output Feedback Controller

open access: yesJournal of Electrical and Computer Engineering, 2023
The load frequency control (LFC) is a most important tool for the frequency regulation mechanism in the widely spread modern power system. The LFC system consists of a communication structure to transmit the measurement and control signal.
Hukam Chand Kumawat   +6 more
doaj   +1 more source

Improved Load Frequency Control in Power Systems Hosting Wind Turbines by an Augmented Fractional Order PID Controller Optimized by the Powerful Owl Search Algorithm

open access: yesAlgorithms, 2023
The penetration of intermittent wind turbines in power systems imposes challenges to frequency stability. In this light, a new control method is presented in this paper by proposing a modified fractional order proportional integral derivative (FOPID ...
Farhad Amiri   +2 more
doaj   +1 more source

Evaluation of Delays-based Stability of LFC Systems in the Presence of Electric ‎Vehicles Aggregator [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2022
In the integrated electrical systems, frequency control service considering the electric vehicle (EV) aggregators could lead to time-varying delay in load frequency control (LFC) schemes.
F. Babaei, A. Safari, J. Salehi
doaj   +1 more source

Impact of participation ratios on the stability delay margins computed by direct method for multiple-area load frequency control systems with demand response

open access: yesAutomatika, 2022
This article studies the effect of dynamic demand response (DR) control on stability delay margins of load frequency control (LFC) systems including communication time delays.
Deniz Katipoğlu   +3 more
doaj   +1 more source

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