نتایج جستجو برای: ancillary services

تعداد نتایج: 306321  

Journal: :Latvian Journal of Physics and Technical Sciences 2019

Journal: :مهندسی قدرت ایران 0
h saboori iran university of science and technology s dehghan iran university of science and technology, tehran, iran shahram jadid iran university of science and technology, tehran, iran

renewable energy sources (res), especially wind power plants, have high priority of promotion in the energy policies worldwide. an increasing share of res and distributed generation (dg), should, as has been assumed, provide improvement in reliability of electricity delivery to the customers. paper presented here concentrates on electricity storage systems technologies and applications pinpoint...

2005
J. B. Campbell T. J. King B. Ozpineci D. T. Rizy L. M. Tolbert

Reports produced before January 1, 1996, may be purchased by members of the public from the following source: any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infri...

Due to uncertain nature of wind and photovoltaic power units, the participation of this units in electricity markets is subjected to significant deviation penalties. This issue leads to despondency or even admission of these units in the competitive environment. With regard to this fact that the low deviations are available when predictions are performed in a short-term horizon and also distrib...

2014
M. Susithra R. Gnanadass

Ancillary services are support services which are essential for humanizing and enhancing the reliability and security of the electric power system. Reactive power ancillary service is one of the important ancillary services in a restructured electricity market which determines the cost of supplying ancillary services and finding of how this cost would change with respect to operating decisions....

2015
Dmitri Perekhodtsev Lester B. Lave

For a stable supply of electricity power plants are required to provide ancillary services in addition to energy production. This paper suggests a solution for optimal bidding strategy for hydroelectric units operating in markets where both energy and ancillary services are priced simultaneously. The model is illustrated on a numerical example of a hydro unit operating in such markets of New Yo...

2016
Frans Van Hulle Hannele Holttinen Juha Kiviluoma Nicolaos Cutululis

With significantly increasing share of variable renewable power generation like wind and solar PV, the need in the power system for ancillary services supporting the network frequency, voltage, etc. changes. Turning this issue around, market opportunities will emerge for wind and solar PV technology to deliver such grid services. In the European power system, adequate market mechanisms need to ...

Journal: :the modares journal of electrical engineering 2008
a. roustaei h . seifi m. k. sheikh el eslami

arbitrage is a known economic term, implying simultaneous transaction on commodities. for instance, a generation company (genco) may involve itself in selling fuel, emission allowance and etc., instead of generating either active or reactive power. moreover, arbitrage between active and reactive powers can, in turn, be considered. in this paper, arbitrage between active and reactive power is c...

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