Results 161 to 170 of about 3,509,685 (196)

Decentralized Demand-Side Contribution to Primary Frequency Control

IEEE Transactions on Power Systems, 2011
Frequency in large power systems is usually controlled by adjusting the production of generating units in response to changes in the load. As the amount of intermittent renewable generation increases and the proportion of flexible conventional generating units decreases, a contribution from the demand side to primary frequency control becomes ...
Molina-García, Angel, Bouffard, François, Kirschen, Daniel S.   +2 more
openaire   +1 more source

Primary load-frequency control from pitch-controlled wind turbines

2009 IEEE Bucharest PowerTech, 2009
In this paper, an operating strategy is suggested for the participation of variable speed, variable pitch wind generators (VSVPWG) in primary load-frequency regulation through pitch-control. The proposed strategy is mathematically precise and neither direct wind measurement as a control input, nor any linearization of the system are required. The above
Panayiotis Moutis, Emmanouil Loukarakis, Stavros Papathanasiou, Nikos D. Hatziargyriou   +3 more
openaire   +1 more source

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