نتایج جستجو برای: energy and spinning reserve markets

تعداد نتایج: 16950222  

2010
Wei Zhou Yu Peng

This paper develops a modified economic dispatch (ED) optimization model with wind power penetration. Due to the uncertain nature of wind speed, both overestimation and underestimation of the available wind power are compensated using the up and down spinning reserves. In order to determine both of these two reserve demands, the risk-based up and down spinning reserve constraints are presented ...

2013
Xingyu Li Dongmei Zhao

In this paper, a dynamic generation scheduling model is formulated, aiming at minimizing the costs of power generation and taking into account the constraints of thermal power units and spinning reserve in wind power integrated systems. A dynamic solving method blended with particle swarm optimization algorithm is proposed. In this method, the solution space of the states of unit commitment is ...

2017
R. Venkadesh R. Anandhakumar

This paper presents an efficient Water Evaporation Optimization algorithm (WEO) is proposed to solve a Dynamic Economic Dispatch problem (DED). The dynamic dispatch problem differs from the static economic dispatch problem by incorporating generator spinning reserve, ramp rate limits, and valve point loading and transmission losses. The proposed water evaporation optimization algorithm is based...

Primary frequency control is the first control action for keeping grid frequency near nominal value, and is implemented by balancing active power generation and consumption. Dynamic characteristics and requirements of primary frequency control depend on the parameters such as system inertia, load damping, number of participating plants in frequency control and their spinning reserve. Awareness ...

2011
Ram Rajagopal Eilyan Bitar Pravin Varaiya Felix Wu

Risk-limiting dispatch or RLD is formulated as the optimal solution to a multi-stage, stochastic decision problem. At each stage, the system operator (SO) purchases forward energy and reserve capacity over a block or interval of time. The blocks get shorter as operations approach real time. Each decision is based on the most recent available information, including demand, renewable power, weath...

Journal: :Electronics 2021

Stand-alone hybrid power plants based on renewable energy sources are becoming a more and interesting alternative. However, their management is complex task because there many variables, requirements restrictions as well wide variety of possible scenarios. Though proper sizing the plant necessary to obtain competitive cost energy, smart key guarantee supply at minimum cost. In this work, novel ...

2001
Yong T. Yoon Marija D. IliC

In this paper we develop a possible notion of shortterm value-based reliability for operating an electric power network. As the electric power industry goes through the restructuring process, the operation based on the value-based reliability may be more appropriate than based on the traditional (N1) security criteria. The value-based reliability requires a framework where the factors to be con...

Microgrid (MG) is one of the important blocks in the future smart distribution systems. The scheduling pattern of MGs affects distribution system operation. Also, the optimal scheduling of MGs will be result in reliable and economical operation of distribution system. In this paper, an operational planning model of a MG which considers multiple demand response (DR) programs is proposed. In the ...

2011
Kirti Pal Manjaree Pandit Laxmi Srivastava

In a deregulated electricity industry, competitive bidding for energy and reserve is increasingly gaining importance and playing a decisive role in maintaining system reliability. The transmission capacity limits have a significant impact on market cost, therefore these limits should also be considered while optimizing the joint dispatch. In this paper, a detailed comparison of classical differ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

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