The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
After the 90s, the electric power industry has undergone a considerable change, and the power markets have been restructured in many regions worldwide. The bidding of power plants is always interesting in research to ensure revenue and profit of many generation companies. This paper studies and analyzes profit of generation company in power market by bidding strategy. PowerWorld 13 simulator are chosen...
A two-level problem to electricity generation scheduling in the wholesale market environment is proposed. The lower level of the problem corresponds to System Operator (SO) efforts to schedule generation and calculate local marginal prices (LMP) on the basis of total production cost minimization. The upper level corresponds to the profit maximization of each Generating Company (GC) with true cost...
In paper using possibility of algorithm of nodal prices determination for inhomogeneous networks taking into account carrying capacity of the lines is considered. In this case, active power distribution is also affected by reactive power, respectively, it influence on nodal prices. As a result of technological limitations, in different nodes of a power system differing prices could form. For illustration...
This paper presents a generic framework for the modeling of energy systems comprising multiple-energy carriers, such as electricity, heat, gas, biomass, etc. The modeling framework is based on the so-called energy hub approach. The core idea of the energy hub is the definition of a conversion matrix capable of describing the interactions of production, delivery, and consumption in multiple-energy...
Quantifying the impact of a given bilateral transaction on transmission circuits is exceedingly important for the proper allocation of transmission charges and system losses to individual transactions as well as the acquisition of transmission access rights for cross-border trades. This paper presents an approach to attribute the MW flows in transmission network branches to individual bilateral transactions...
The network model bases upon the energy hub concept, which was developed by the Vision of Future Energy Networks” (VoFEN) research group at ETH Zurich in the last years. Keynote of the concept is a combined optimization of different energy carrier. Synergetic effects are expected to give unusual optimization results, when allowing any possible energy conversion inside a specific area that constitute...
The introduction of distributed generation will bring new challenges to the theory of power electricity market. The problem of loss allocation is one of them. Firstly, a loss allocation method is presented for power distribution network with distributed generation. Secondly, the changes of loss allocation which introduction of distributed generation before and after brings about are analyzed and compared...
Locational marginal prices (LMP) are important pricing signals for the participants of competitive electricity markets, as the effects of transmission losses and binding constraints are embedded in LMPs. This paper presents a software tool that evaluates the nodal marginal prices considering losses and congestion. The initial dispatch is based on all the electricity transactions negotiated in the...
At the authors institute a novel concept, the so called Energy Hub, was developed to solve optimal power flow (OPF) problems for integrated energy systems with multiple energy carriers. This paper applies the Energy Hub model on an OPF problem considering multiple renewables in a mixed-consumer area. From the experiences of a case study the following modifications of the general model were derived:...
The paper proposes a novel power conversion system for Universal and Flexible Power Management (UNIFLEX-PM) in Future Electricity Network. Its structure is based on a back-to-back three-phase AC-DC 7-level converter; each AC side is connected to a different PCC, representing the main grid and/or various distributed generation systems. Effective and accurate power flow control is demonstrated through...
This paper defines the current position for micro-generation, with particular reference to the potential for micro-wind units, in the Irish electricity supply system. A network model is developed using the Distflow method of load flow analysis and is applied to consider the appropriate level of micro-generation penetration.
This paper looks at the influence of Financial Transmission Rights (FTRs) on the market value(Social Welfare; SW) in the competitive electricity market. The transmission line constraints make it difficult to compute the Nash Equilibrium (NE) due to causing a mixed strategy NE instead of a pure strategy NE. Computing a mixed strategy is more complicated in a multi-player game. The aim of this paper...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.