Application of Cubic Spline Interpolation in estimating Market power under deregulated electricity market
01 Nov 2015-pp 1-6
TL;DR: Must Run Share and Nodal Must Run Share is used as an index to calculate market power and will be dynamic enough to suggest the operating conditions for a desired level of market power for any of the above named firms under unexpected system changes.
Abstract: In a deregulated market environment, the calculation of market power is one of the top priorities of the bodies involved in the market. The bodies generally involved such as the Generation companies (GENCOs), Distribution companies (DISCOs) look towards maximizing profit whereas the RTO/ISOs look to attain a zero market power environment. In this paper, Must Run Share and Nodal Must Run Share (NMRS) is used as an index to calculate market power. To focus upon the fast, accurate calculations and understanding the trends of market power under system changes such as various load conditions, transmission line outage and generator outage, Cubic's Spline Interpolation is used as a technique to interpolate between market powers calculated over a few operating condition set points. A demonstration of the employment of such a system is represented in this paper which will help in achieving the objectives of the players or firms involved in the electricity market. This system will be dynamic enough to suggest the operating conditions for a desired level of market power for any of the above named firms under unexpected system changes. The work is done on IEEE 14 bus test system on the MATLAB version R2012b.
Citations
More filters
[...]
TL;DR: In this article , a Whale Optimization Algorithm (WOA) has been proposed for providing an optimal solution to the reactive power management (RPM) problem in IEEE 118 bus system.
Abstract: Over the years the optimization in various areas of power system has immensely attracted the attention of power engineers and researchers. Reactive power management (RPM) problem is one of such areas. This is done by the placement of TCSC in the appropriate location and thereafter minimizing the transmission loss of the system. Whale optimization algorithm has been proposed in the current work for providing optimal solution to RPM problem. To test the efficacy of the proposed technique, it has been implemented on standard IEEE 118 bus system. The optimal solution rendered by the proposed method is compared with initial condition. The proposed method of Whale optimization algorithm (WOA) generates a reduction in transmission loss after incorporating TCSC. The comparison thus yields that the WOA method is superior in generating optimality, diversity and is efficient to generate solution strategies for RPM even in a connected power network.
7 citations
[...]
07 Mar 2018
TL;DR: Domains like available transfer capability (ATC), electric arc furnace modeling, static var.
Abstract: In this chapter, a comprehensive review is made on the application of cubic spline interpolation techniques in the field of power systems. Domains like available transfer capability (ATC), electric arc furnace modeling, static var. compensation, voltage stability margin, and market power determination in deregulated electricity market are taken as samples to illustrate the significance of cubic spline interpolation.
1 citations
Cites background from "Application of Cubic Spline Interpo..."
[...]
References
More filters
[...]
TL;DR: A comprehensive review on market power with various indices which were used in market power analysis and the evolution of research and development in the field of market power is presented in this paper, where the literature work presented in this paper has been divided into various sections to facilitate the upcoming researchers who carry out their research in the area of Market power under various environments.
Abstract: The concept of market power has gained its importance after the electric power industry started a process of transition and restructuring since early 1990s or so. In this competitive electricity market, the operational and the physical constraints of the network possess major threat to the market by the generation companies in exercising its market power. This paper presents a comprehensive review on market power with various indices which were used in market power analysis and the evolution of research and development in the field of market power. The literature work presented in this paper has been divided into various sections to facilitate the upcoming researchers who carry out their research in the area of market power under various environments.
91 citations
[...]
TL;DR: In this paper, the impact of load variation, the size of a power supplier and random failures on market power has been investigated, and the geographic difference of market power caused by network constraints has been considered.
Abstract: Market power assessment is an important aspect of electric market analysis and operation. Market power problems are more complicated in an electric market than those in other markets due to the specific properties of electricity. This paper investigates market power problems and the related solution techniques in an electric power market. The impact of load variation, the size of a power supplier and random failures on market power has been investigated. The geographic difference of market power caused by network constraints has been considered. Must run share (MRS) and nodal must-run share (NMRS) have been proposed to represent system and local market powers respectively. An optimization technique and the topological analysis of power flow have been used to determine the MRS and NMRS. Expected nodal must-run share (ENMRS) has been proposed to represent the impact of random failures on market power and the associated risk of customers paying a high price due to the exercise of market power. The contingency enumeration and probabilistic technique have been used to determine the ENMRS. The IEEE Reliability Test System is analyzed to illustrate the proposed indices and techniques.
89 citations
[...]
18 May 1993
TL;DR: An adaptive RF power amplifier linearization technique is presented and has nearly 14 dB better suppression of the intermodulation products than the complex gain predistortion technique.
Abstract: An adaptive RF power amplifier linearization technique is presented. The demodulated amplifier output is compared with the baseband input signal to estimate the amplifier's AM-AM and AM-PM characteristics, using cubic spline interpolation. The input signal is predistorted using these estimated characteristics to compensate for the amplifier's nonlinearity. The proposed technique has nearly 14 dB better suppression of the intermodulation products than the complex gain predistortion technique. The out-of-band power emission is about 12 dB lower in the first two adjacent RF channels than is obtained using the Cartesian coordinate negative feedback technique.
39 citations
[...]
TL;DR: ATC results obtained from the proposed cubic-spline interpolation technique prove that the method is satisfactorily accurate and it is faster than the ATC method using the recursive AC power flow computations.
Abstract: This paper presents a new computationally fast and accurate method for evaluating available transfer capability (ATC) based on a curve fitting technique so-called as the cubic-spline interpolation technique. The advantage of the technique in the computation of ATC is that it has the ability to reduce the time consuming AC power flow computations. The cubic-spline interpolation technique traces the curves of voltage magnitude and power flow variations with respect to the increase of real power transfer. ATC is then determined at the point where the voltage or power flow limits intersect the curves. The effectiveness of the proposed method is verified by illustrating the ATC evaluation on a practical test system. ATC results obtained from the proposed cubic-spline interpolation technique prove that the method is satisfactorily accurate and it is faster than the ATC method using the recursive AC power flow computations.
7 citations
[...]
TL;DR: The objective of this paper is to show how the generation companies' market power gets enhanced due the FACTS devices and the results obtained are compared.
Abstract: In power system studies, congestion in transmission lines and utilization of Flexible Alternating Current Transmission System (FACTS) devices are closely associated and it is very important due to their role in power delivery system enhancement. It is to be noted that the generation companies can exercise their market power which depends on the line flows and the line constraints, generators' location and its share to the individual loads. This issue cannot be overlooked as it creates monopoliness which is a threat to the deregulated market policy. The objective of this paper is to show how the generation companies' market power gets enhanced due the FACTS devices. FACTS devices like Thyristor Controlled Switching Capacitor (TCSC) and Thyristor Controlled Phase Angle Regulator (TCPAR) are taken and used under steady state operation. The market power is determined using Nodal Must Run Share (NMRS) index for the standard IEEE 14-bus system with and without the above FACTS devices and the results obtained are compared. All the above simulations are carried out in MATLAB 7.9- R2009b environment.
7 citations
Related Papers (5)
[...]