نتایج جستجو برای: ancillary services as

تعداد نتایج: 5786759  

2016
Linh Hoang Bruce Mann

Universities have been putting more emphasis on developing ancillary services in an effort to make them look better and become more attractive to both prospective students as well as financial donors. However, in making the decision as to what level of ancillary services they should administer, universities face the problem of whether they are compromising their academic quality. Linh Hoang Sen...

2016
Junhao Lin James J.Q. Yu Ka-Cheong Leung Victor O.K. Li

In this chapter, we propose a method for the utility grid operator and aggregators to coordinate multiple grid-connected electric vehicles (EVs) so as to provide electricpower ancillary services accounting for quality-of-service (QoS) guarantees for EV charging in a multilevel vehicle-to-grid (V2G) system. This method includes applying consensus-algorithm-based distributed control, designing th...

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...

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...

2001
Hugh Outhred

The electricity industry has particular characteristics that create barriers to its successful commercialization. Electrical energy is instantaneously transmitted from generators to end-use equipment according to physical laws rather than commercial contracts. Any blueprint for commercialization must be compatible with these characteristics. The main commercial activities in a restructured elec...

Journal: :Journal of Transportation Management 2017

Journal: :Decision Support Systems 2001
Ali Keyhani Ashkan Kian Jose B. Cruz Marwan A. Simaan

In this paper, the problems of market monitoring and control of ancillary services of future energy systems are presented. We envision that future system operation of electric power systems will evolve into completely unbundled ancillary service markets that are governed by spot price signals. The grid operators need to acquire ancillary services through competitive markets for control of the s...

2016
Yashen Lin Jeremiah X. Johnson Ian A. Hiskens Scott Backhaus

In a power system, having a high level of renewable energy penetration requires a large amount of ancillary services to balance the supply and demand in real time. Commercial buildings have significant thermal capacity and so offer large potential for providing such services. Recent research has shown that the power consumption of the Heating, Ventilation, and Air Conditioning (HVAC) system can...

2013
Jenny Riesz Iain MacGill

Aspects of Frequency Control Ancillary Services (FCAS) in the Australian National Electricity Market (NEM) are discussed. Several aspects are identified as being relatively unique and beneficial for the integration of large quantities of variable renewables. These include fully dynamic setting of regulation reserves based upon real-time measurement of the time error, a sophisticated ‘causer pay...

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