Results 261 to 270 of about 3,505,439 (294)

Wind Turbine Participation in Primary Frequency Control

Journal of Dynamic Systems, Measurement, and Control, 2019
Wind energy is a clean and desirable power source, but wind turbines can potentially operate to the detriment of grid stability. As wind turbine penetration increases, concerns grow regarding power intermittency and frequency regulation. These factors motivate a need for control methodologies that enable a wind turbine to support grid frequency ...
Matthew Chu Cheong, Zheren Ma, Haiya Qian, Julia Conger, Pengwei Du, Dongmei Chen   +5 more
openaire   +1 more source

Hydropower unit primary frequency control model analysis

2015 12th International Computer Conference on Wavelet Active Media Technology and Information Processing (ICCWAMTIP), 2015
Primary frequency of hydropower unit plays an important role in the stability of the grid frequency. The operation mode of hydropower governor has remarkable effect on the frequency modulation. In this paper, frequency power integrated control mode and frequency power select control mode were introduced, as well as the analysis of their static and ...
null Meng-Di Liu, null Zhen Jia, null Hong-Tao Li, null Yuan-Chu Cheng   +3 more
openaire   +1 more source

Primary Frequency Control Characteristic of a Grid

2008 3rd IEEE Conference on Industrial Electronics and Applications, 2008
In power system, primary frequency control (PFC) is one of the important methods to maintain frequency stability. But, setting large dead band or illogically adding PFC into power system in digital electro-hydraulic (DEH) system weaken the ability of primary frequency control, that results in grid frequency stability decrease against sudden accidents ...
null Yiping DAI, null Pan Zhao, null Shuping Chang   +2 more
openaire   +1 more source

Wind farm contribution to primary frequency control

2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015
This paper presents the network frequency controlled by wind farm without supporting from other conventional power plants. The wind farm which consists of several wind turbines with doubly fed induction generators are divided into two groups and coordinated by a wind farm control center.
Rahmat Suryana, Wilfried Hofmann
openaire   +1 more source

Electric Hot Water Heater Primary Frequency Control

2018 IEEE Energy Conversion Congress and Exposition (ECCE), 2018
Residential electric hot water heaters present a massive distributed energy storage resource. By allowing for temperature variation of the water in the lower part of the water heat tank, as much as several kWh of energy storage could be realized per water heater.
Ali Haider, Will Stark, Ted. K.A. Brekken   +2 more
openaire   +1 more source

Variable Speed Wind Generators Participation in Primary Frequency Control

Wind Engineering, 2008
To maintain a power reserve to contribute to the primary frequency control with variable speed wind generators, two control strategies are analysed in this paper: a torque control strategy and a fuzzy logic based multivariable control strategy. The first and most simple strategy allows to maintain a regular reserve only when the wind turbine generator
Courtecuisse, Vincent, Robyns, Benoît, François, Bruno, Petit, Marc, Deuse, Jacques   +4 more
openaire   +2 more sources

Contribution of DG units to primary frequency control

2005 International Conference on Future Power Systems, 2005
AbstractThe increasing penetration of distributed generation (DG) in the electricity grid will result in a reduction of the number of connected conventional power plants, which are nowadays responsible for control of the electricity network frequency. Currently DG units do not contribute to frequency control.
J. Morren, S. W. H. de Haan, J. A. Ferreira   +2 more
openaire   +1 more source

Variable Parameters Primary Frequency Control Strategy of DFIG

2012 Asia-Pacific Power and Energy Engineering Conference, 2012
The rotor speed of DFIG(doubly fed induction generator) and system frequency are decoupled, this leads to poor responding performance of DFIG to the change of power system frequency. The rotary inertia and primary frequency control ability are decreased with wind power penetration growing continuously.
Chengming He, Hongtao Wang, Huadong Sun
openaire   +1 more source

Primary Governing and Frequency Control in ERCOT

2007 IEEE Power Engineering Society General Meeting, 2007
In an ideal world we would have all the information we need, and that information would be completely accurate. Since we do not have an ideal world we must plan and operate the power system with the information that is available. The following describes two approaches to deal with primary governing and frequency issues where some of the data and models
openaire   +1 more source

Primary frequency control monitoring at grid control centers

2016
Although participation of large power generation units in control area’s primary frequency control is obligatory by national grid codes, the actual practice shows that it is often disabled in power plants. Since this control causes small fluctuations of unit’s power production which influences planned hourly production and causes additional wear and ...
Šijak, Tomislav, Kuljača, Ognjen, Nemec, Darko, Vrdoljak, Krešimir, Strnad, Ivan, Plavšić, Tomislav   +5 more
openaire   +2 more sources