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Energy, Automation, and Signal (ICEAS), 2011 International Conference on

Date 28-30 Dec. 2011

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Displaying Results 1 - 25 of 155
  • [Front cover]

    Publication Year: 2011, Page(s): c1
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  • [Title page]

    Publication Year: 2011, Page(s): 1
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  • [Copyright notice]

    Publication Year: 2011, Page(s): 1
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  • Conference Committee

    Publication Year: 2011, Page(s):1 - 2
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  • Technical advisory committee

    Publication Year: 2011, Page(s):1 - 2
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  • General Chair's message

    Publication Year: 2011, Page(s): 1
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  • Table of contents

    Publication Year: 2011, Page(s):1 - 9
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  • Author index

    Publication Year: 2011, Page(s):1 - 11
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  • An evolutionary programming based neuro-fuzzy technique for multiobjective generation dispatch

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    An integrated approach combining an evolutionary programming based fuzzy coordination and an artificial neural network methods along with a heuristic rule based search algorithm has been developed in this paper in order to obtain the best compromising optimal generation schedules for multiobjective generation dispatch problem with non-smooth characteristic functions satisfying various practical co... View full abstract»

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  • Improved loss distribution and modelling in DCOPF

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (167 KB) | HTML iconHTML

    Loss modelling in DCOPF has been used to overcome the drawbacks of neglecting losses in the lossless DCOPF model. Various models have been proposed in literature that incorporate losses in different ways. However, there has been no unique way of distributing the losses to buses. The approaches suggested in literature have some arbitrariness in distributing losses to various buses. Since change in ... View full abstract»

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  • An AI approach for fault distance estimation in series compensated transmission line

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (345 KB) | HTML iconHTML

    The main objective of this paper is to accurately estimate the fault location in a series compensated transmission line using integration of discrete wavelet transform, particle swarm optimization (PSO) and support vector machine based algorithm. Estimation of accurate fault location will lead to quicker restoration of the supply. Instantaneous values of faulty current, voltage and power signals a... View full abstract»

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  • A comparison of embedded cost based transmission pricing methods

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (346 KB) | HTML iconHTML

    In the restructured power market, it is necessary to develop an appropriate pricing scheme that can provide the useful economic information to market participants, such as generation, transmission companies and customers. Proper pricing method is needed for transmission network to ensure reliability and secure operation of power system. Accurately estimating and allocating the transmission cost in... View full abstract»

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  • Directional relaying of series compensated line using an integrated approach

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    This paper presents a directional relaying algorithm based on voting technique for the protection of series compensated line where the capacitors are present at both the ends of the line. The directional relaying issues in series compensated line related to voltage inversion, current inversion, high resistance fault and load change are addressed. Four classifiers based on positive and negative seq... View full abstract»

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  • A novel population-based optimization algorithm for optimal distribution capacitor planning

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (262 KB) | HTML iconHTML

    Optimal distribution capacitor planning is an important task for economic operation of power systems. The optimal distribution capacitor planning is a combinatorial optimization problem which considers both power losses and cost of capacitor installation subject to bus voltage constraints. Discrete nature of capacitors, different load are considered in the problem formulation. This paper presents ... View full abstract»

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  • Detecting fault during power swing for a series compensated line

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (401 KB) | HTML iconHTML

    The apparent impedance seen by a distance relay may fall within its operating zone during power swing. This may cause the relay to trip unnecessarily. To avoid unintended trip operation during such conditions, a power swing blocking function is utilized in distance relays. However, if a fault occurs during power swing, the relay should detect the fault and trip as soon as possible for maintaining ... View full abstract»

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  • Stability assessment using synchrophasor data

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB) | HTML iconHTML

    Rotor angle variation during post fault period in a power system leads to power swing. Both stable and unstable swings may cause tripping of distance relays and therefore they are blocked during swinging conditions. The unstable swing if not detected early or dealt properly leads to loss of synchronism among different areas and consequently resulting in catastrophic failures such as blackouts. To ... View full abstract»

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  • Isolated converter topologies for power factor correction — A comparison

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (458 KB) | HTML iconHTML

    This paper deals with the analysis, design and analog based hardware implementation of three different topologies of high frequency isolated AC-DC converters in discontinuous current mode (DCM) of operation for power factor correction and output voltage regulation. These switching converters are designed for low power rating and low output voltage, typically 20.25 W with 13.5 V in DCM operation. M... View full abstract»

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  • Solution to directional relaying for double circuit line

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB) | HTML iconHTML

    Protection of double circuit line is more complex than the single circuit. Problems associated with directional relaying for double circuit line during close-in fault, cross country fault, load change and with high resistance fault are addressed in this paper. Conventional directional relaying algorithm uses fault voltage and current phasors to derive the decisions and thus, finds its limitation d... View full abstract»

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  • An improved control strategy of self excited induction generator taking magnetization nonlinearity

    Publication Year: 2011, Page(s):1 - 5
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (215 KB) | HTML iconHTML

    Self excited induction generators (SEIG) are being widely used in wind power generation, especially for supplying electric power in remote areas. The major problem of such generation is to maintain constant voltage and frequency under variable load and variable wind speed condition. In this paper a control strategy involving supply of reactive power to the generator partially through fixed capacit... View full abstract»

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  • Improvement of energy efficiency in industries by facility based energy management

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (197 KB) | HTML iconHTML

    Energy is abundantly present in nature but the usable form is scarce and limited. In the present energy scenario energy conservation (EC) is imminent. Industries consume about 50% of energy produced and EC in this sector is more significant. Use of energy management systems (EMS) is one of the feasible approaches. There are many energy consuming components in industries and EC effort should be use... View full abstract»

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  • Intelligent control for a radial distribution system with distributed generation

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB) | HTML iconHTML

    Now days the Distribution Network Organizations (DNO's) have set some rules to maintain the voltage at a specified level to control the increase of voltage variations and controls the power factor. The main objective of this paper is that in cases of weak networks the voltage level is maintained by the distributed generation (DG) by importing or exporting active and reactive power. To control the ... View full abstract»

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  • Spectral energy function for fault detection during power swing

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB) | HTML iconHTML

    This paper presents a spectral energy function for fault detection during power swing using a novel time frequency transform known as S-transform. S-transform is a variable window short time Fourier Transform (STFT) which combines the elements of STFT and Wavelet transform and, thus known as phase corrected Wavelet transform. The process starts at processing the current signal through S-transform ... View full abstract»

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  • Grid to vehicle and vehicle to grid energy transfer using single-phase bidirectional AC-DC converter and bidirectional DC-DC converter

    Publication Year: 2011, Page(s):1 - 5
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (301 KB) | HTML iconHTML

    In this paper, a configuration of a single-phase bidirectional AC-DC converter and bidirectional DC-DC converter is proposed to transfer electrical power from the grid to an electrical vehicle (EV) and from an EV to the grid while keeping improved power factor of the grid. In first stage, a 230 V 50 Hz AC supply is converted in to 380V dc using a single-phase bidirectional AC-DC converter and in t... View full abstract»

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  • An autonomous wind energy conversion system with permanent magnet synchronous generator

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (385 KB) | HTML iconHTML

    This paper deals with a permanent magnet synchronous generator (PMSG) based variable speed autonomous wind energy conversion system (AWECS). Back-back connected voltage source converter (VSC) and a voltage source inverter (VSI) with a battery energy storage system (BESS) at the intermediate dc link are used to realize the voltage and frequency controller (VFC). The BESS is used for load leveling a... View full abstract»

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  • Comparison of three control algorithms for single-phase UPQC

    Publication Year: 2011, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (318 KB) | HTML iconHTML

    This paper employs a single-phase unified quality conditioner (UPQC), an integration of shunt and series active filters (APF), to perform voltage and supply current harmonics mitigation and power factor correction. Both the shunt and series APFs are realized using a single-phase, two leg voltage source inverter (VSI). Three control algorithms based on unit vector technique (UVT), Single-phase d-q ... View full abstract»

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