Results 351 to 360 of about 24,313,007 (383)

Frequency Control in Microgrids

2014
This chapter reviews main control concepts in a Microgrid (MG) as basic elements of future smart grids, which have an important role to increase the grid efficiency, reliability, and to satisfy the environmental issues. The MG control loops are classified into local, secondary, global, and central/emergency controls.
openaire   +2 more sources

On Load Frequency Control

INFOR: Information Systems and Operational Research, 1991
AbstractThis paper addresses the design of decentralized controllers for interconnected large-scale electric power systems. The system is modelled as a collection of independent subsystems or control areas interconnected through high voltage tie-lines.
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ELM frequency feedback control on JET

Nuclear Fusion, 2015
This paper describes the first development and implementation of a closed loop edge localized mode (ELM) frequency controller using gas injection as the actuator. The controller has been extensively used in recent experiments on JET and it has proved to work well at ELM frequencies in the 15–40 Hz range. The controller responds effectively to a variety
Lennholm, M., Beaumont, P.S., Carvalho, I.S., Chapman, I.T., Felton, R., Frigione, D., Garzotti, L., Goodyear, A., Graves, J., Tsalas, M., Grist, D., Jachmich, S., Lang, P., Lerche, E., de la Luna, E., Mooney, R., Morris, J., Nave, MF F, Rimini, F., Sips, G., Solano, E., Contributors, JET-EFDA   +21 more
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Resonant lines for frequency control

Electrical Engineering, 1935
Vacuum tube oscillators for radio frequency signals above 25 megacycles may be controlled with a high degree of precision by resonant lines, and at lower frequencies may be used to obtain a larger power output than is obtainable from crystal oscillators.
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Adaptive Frequency Control of Microgrid Based on Fractional Order Control and a Data-Driven Control With Stability Analysis

IEEE Transactions on Smart Grid, 2022
M. Kazemi, S. J. Sadati, S. Gholamian
semanticscholar   +1 more source

Adaptive Voltage and Frequency Control of Islanded Multi-Microgrids

IEEE Transactions on Power Systems, 2018
This paper introduces an adaptive voltage and frequency control method for inverter-based distributed generations (DGs) in a multi-microgrid (MMG) structure using distributed cooperative control and adaptive neural networks (ANN).
D. Amoateng, M. Al Hosani, M. Elmoursi, K. Turitsyn, J. Kirtley   +4 more
semanticscholar   +1 more source

Estimation and Prediction in Load frequency Control

2007 International Conference on Power Engineering, Energy and Electrical Drives, 2007
Many controllers designed for load-frequency control (LFC) in power system are based on the knowledge of system state, which is generally not measured. This paper presents a method for estimation of disturbance and system state in LFC. In power systems, measurement signals and control signals are transmitted over long distances between controller and ...
Nedjeljko Perić, Ivan Petrović, Krešimir Vrdoljak   +2 more
openaire   +3 more sources

A control frequency selection procedure for frequency domain autotuning methods on PID controllers

Proceedings. IEEE International Symposium on Computer Aided Control System Design, 2003
Classical PID controller tuning methods in the frequency domain have as their fundamental target the achievement of a certain phase margin or gain margin at a control frequency (w/sub c/). In both cases the task of w/sub c/ selection is key due to the fact that the control system stability and bandwidth are fully dependent on it..
F.J.P. Castelo, R.F. Garcia
openaire   +2 more sources

Design of Fractional Order PID Controller for Load Frequency Control in Perturbed Two Area Interconnected System

Electric power components and systems, 2019
The vital concern of the load frequency control in an interconnected system is to minimize the frequency and tie-line scheduled power variations. A robust controller is required to overcome these concerns in a power system.
Ruchika Lamba, S. Singla, Swati Sondhi
semanticscholar   +1 more source

Distributed MPC-Based Frequency Control in Networked Microgrids With Voltage Constraints

IEEE Transactions on Smart Grid, 2019
The increasing penetration of renewables and growing number and multiple operating modes of microgrids (MGs) bring challenges to designing a frequency control scheme for the networked MG system (NMS) that can work in all possible scenarios.
Kun Liu, Tao Liu, Zhiyuan Tang, D. Hill
semanticscholar   +1 more source