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# IEEE Transactions on Power Delivery

## Filter Results

Displaying Results 1 - 25 of 55

Publication Year: 2012, Page(s):C1 - 2
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• ### IEEE Transactions on Power Delivery publication information

Publication Year: 2012, Page(s): C2
| PDF (40 KB)
• ### Development of Insulator Diagnosis Algorithm Using Least-Square Approximation

Publication Year: 2012, Page(s):3 - 12
Cited by:  Papers (2)
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This paper presents a new insulator diagnosis algorithm that is applied to the measured voltage and resistance values of an insulator string to detect faulty insulators. Under normal conditions of low pollution and low humidity, the distribution voltages of a sound insulator string show a U-shaped distribution, and its insulation resistances show very high values of above 20 GΩ. The inspect... View full abstract»

• ### Acceptability of Three Transformer Hottest-Spot Temperature Models

Publication Year: 2012, Page(s):13 - 22
Cited by:  Papers (5)
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The acceptability of three transformer hottest-spot temperature (HST) models for use in dynamic loading are investigated and discussed in this paper. The hottest-spot models are the modified HST model, Swift's model, and Susa's model. The investigation fitted the models to measured field data obtained from utility transformers using numerical and statistical methods. Acceptability metrics to evalu... View full abstract»

• ### A Novel Apparatus for Adjusting the Insertion Voltage of Transmission Line Based on Variable Inductors

Publication Year: 2012, Page(s):23 - 31
Cited by:  Papers (3)
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A novel apparatus based on variable inductors to control the insertion compensating voltage of the transmission line is proposed in this paper. The apparatus can change the alternative voltage into the desired alternative voltage directly by using the control strategy proposed in this paper and insert the voltage into the line. Since the amplitude and the phase angle of the voltage supplied by the... View full abstract»

• ### Impact of VSC-Based Multiline FACTS Controllers on Distance Protection of Transmission Lines

Publication Year: 2012, Page(s):32 - 39
Cited by:  Papers (30)
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By utilizing multiline voltage-source (VSC)-based flexible ac transmission system (FACTS) controllers, independent controllability over each compensated line of a multiline system can be achieved. While VSC-based multiline FACTS controllers emerged as a new opportunity to control two independent ac systems, the main constraints and limitations that are presented to the conventional transmission-li... View full abstract»

• ### Development and Hardware Implementation of a Fault Transients Recognition System

Publication Year: 2012, Page(s):40 - 52
Cited by:  Papers (9)
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This paper presents the development and hardware implementation of a classification scheme to distinguish the transients originated by faults from other types of transients. In the proposed scheme, a set of Hidden Markov Model-based classifiers is employed to recognize the fault transients. Input features for the classifiers are the energy contained in wavelet coefficients of the measured current ... View full abstract»

• ### Design of an Adaptive Neurofuzzy Inference Control System for the Unified Power-Flow Controller

Publication Year: 2012, Page(s):53 - 61
Cited by:  Papers (12)
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This paper presents a new approach to control the operation of the unified power-flow controller (UPFC) based on the adaptive neurofuzzy inference controller (ANFIC) concept. The training data for the controller are extracted from an analytical model of the transmission system incorporating a UPFC. The operating points' space is dynamically partitioned into two regions: 1) an inner region where th... View full abstract»

• ### Power-Line Communication in Medium-Voltage System: Simulation Model and Onfield Experimental Tests

Publication Year: 2012, Page(s):62 - 69
Cited by:  Papers (30)
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The aim of this paper is to develop a complete model of a power-line communication (PLC) system operating on a medium-voltage (MV) network. The core-shield configuration was chosen for signal transmission in the power cables. In order to validate the developed model experimental, the medium-voltage network of the Favignana island was used to carry out detailed testing. The transmission was perform... View full abstract»

• ### Optimal Feeder Routing Based on the Bacterial Foraging Technique

Publication Year: 2012, Page(s):70 - 78
Cited by:  Papers (12)
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A new method for optimal feeder routing in radial distribution system planning has been reported in this paper. This method harnesses the efficacy of the bacterial foraging technique for solving combinatorial optimization problems with faster convergence and enhanced probability to achieve a global optimum solution of the distribution planning problem. In this new planning method, bacterial foragi... View full abstract»

• ### Multimodule HVDC System Using SHE-PWM With DC Capacitor Voltage Equalization

Publication Year: 2012, Page(s):79 - 86
Cited by:  Papers (7)
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Multimodule converter-based high-voltage dc (HVDC) power transmission incorporates numerous voltage-source converters (VSCs) connected in series/parallel to provide increased voltage/current and, hence, power ratings. When a selective harmonic elimination pulsewidth-modulation (SHE-PWM) technique is employed, the switching losses of the VSC modules are reduced but the voltages of the series-connec... View full abstract»

• ### Genetic-Based Underfrequency Load Shedding in a Stand-Alone Power System Considering Fuzzy Loads

Publication Year: 2012, Page(s):87 - 95
Cited by:  Papers (22)
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For the operators of a power system, underfrequency load shedding is important for maintaining the system in a stable and reliable state whenever it suffers from a severe disturbance. The underfrequency relay protects the power system against a blackout when the system frequency declines to predetermined settings. This paper determines the shed load at each stage for the underfrequency relay (81L)... View full abstract»

• ### Intermittent Fault Location in Distribution Feeders

Publication Year: 2012, Page(s):96 - 103
Cited by:  Papers (15)
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Due to the utilization of fundamental frequency, current impedance-based fault-location methods are able to locate only permanent and linear faults. The duration of the arc in low- and medium-voltage systems can be as short as a quarter of a cycle. This period, which is normal for intermittent faults, is insufficient for fundamental frequency-based fault-location algorithms. Therefore, available m... View full abstract»

• ### Methodology for a Security/Dependability Adaptive Protection Scheme Based on Data Mining

Publication Year: 2012, Page(s):104 - 111
Cited by:  Papers (27)
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Recent blackouts offer testimonies of the crucial role played by protection relays in a reliable power system. It is argued that embracing the paradigm shift of adaptive protection is a fundamental step toward a reliable power grid. The purpose of this paper is to present a methodology to implement a security/dependability adaptive protection scheme. The advocated methodology aims to reduce the li... View full abstract»

• ### Switching Transient of 1000-kV UHV System Considering Detailed Substation Structure

Publication Year: 2012, Page(s):112 - 122
Cited by:  Papers (5)
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The insulation level of power apparatus is mainly determined by the amplitudes and waveforms of system overvoltages. The substation is handled as a lumped equivalent model, and the detailed substation structure is not taken into account in present switching transient calculations. In this study, the influence of considering a substation structure on the switching transient calculation of a 1000-kV... View full abstract»

• ### Electromagnetic Vibration Analysis of the Winding of a New HVDC Converter Transformer

Publication Year: 2012, Page(s):123 - 130
Cited by:  Papers (9)
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HVDC converter transformers suffer from serious noise pollution caused by the electromagnetic vibration of their windings and cores, since the nonlinear behavior of converters produces a large number of harmonic currents. This paper presents an electromagnetic vibration analysis of a new autoinductive harmonic suppression (AIHS) converter transformer's windings, taking harmonic currents into consi... View full abstract»

• ### Steady-State Model and Power-Flow Analysis of Single-Phase Electronically Coupled Distributed Energy Resources

Publication Year: 2012, Page(s):131 - 139
Cited by:  Papers (8)
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This paper develops and presents the steady-state, fundamental-frequency model of the single-phase distributed energy resource (DER) unit which utilizes a single-phase voltage-sourced converter (VSC) as the interface medium. The model represents: 1) different operating and control modes and 2) the operational constraints and limits of the VSC and the host grid. The model is included in a sequentia... View full abstract»

• ### New Insights on Nontechnical Losses Characterization Through Evolutionary-Based Feature Selection

Publication Year: 2012, Page(s):140 - 146
Cited by:  Papers (16)
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Although nontechnical losses automatic identification has been massively studied, the problem of selecting the most representative features in order to boost the identification accuracy and to characterize possible illegal consumers has not attracted much attention in this context. In this paper, we focus on this problem by reviewing three evolutionary-based techniques for feature selection, and w... View full abstract»

• ### Electromagnetic Interference Analysis in HV Substation Due to a Static Var Compensator Device

Publication Year: 2012, Page(s):147 - 155
Cited by:  Papers (3)
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Static var compensator (SVC) devices have been extensively utilized in modern substations to achieve high flexibility and wide tolerance to load variation. However, due to frequent switching of the thyristors in a static var compensator, large amounts of electromagnetic interference (EMI) are being generated, which may cause malfunction of the SVC or unaccepted response of victim devices positione... View full abstract»

• ### Application of Computational Fluid Dynamics to Reduce the New Product Development Cycle Time of the ${rm SF}_{6}$ Gas Circuit Breaker

Publication Year: 2012, Page(s):156 - 163
Cited by:  Papers (3)
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This paper describes thermal modeling, using computational fluid dynamics (CFD), to predict the temperature rise of a high-voltage SF6 gas circuit breaker during a heat-run test. In electrical equipment, maximum temperature rise in various components is limited by their material properties and, hence, the heat-run test forms part of type test. A methodology to predict the temperature ri... View full abstract»

• ### Impact of High-Voltage Primary Supply Lines in the 2 $times$ 25 kV–50 Hz Railway System on the Equivalent Impedance at Pantograph Terminals

Publication Year: 2012, Page(s):164 - 175
Cited by:  Papers (23)
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The High Speed/High Capacity railway lines use the 2 × 25 kV-50 Hz power system. It is supplied at high voltage by dedicated primary lines that can be placed in close proximity to the railway line. In railway traction systems, locomotive power electronic converters and auxiliary systems are important harmonic sources. Resonance phenomena can cause harmonics amplification, with consequent pr... View full abstract»

• ### A Classification Technique for Recloser-Fuse Coordination in Distribution Systems With Distributed Generation

Publication Year: 2012, Page(s):176 - 185
Cited by:  Papers (25)
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In this paper, a novel approach is presented to study the impact of distributed-generation penetration on recloser-fuse coordination. The main core of this approach is based on an assessment process using a classification technique to classify the recloser-fuse coordination status at fault conditions to either coordination holds or coordination lost. Accordingly, the distribution system operator c... View full abstract»

• ### Efforts on Improving the Performance of Superimposed-Based Distance Protection

Publication Year: 2012, Page(s):186 - 194
Cited by:  Papers (4)
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Existing superimposed-based distance protection possibly maloperates due to some extreme conditions, for instance, an external earth fault occurring while the transmission system operates at a large phase difference between the sources at two sides of the protected line. To solve this problem, an adaptive distance relay using the superimposed component and the information of the opposite end is pu... View full abstract»

• ### Cooperative Multihop AF Relay Protocol for Medium-Voltage Power-Line-Access Network

Publication Year: 2012, Page(s):195 - 204
Cited by:  Papers (10)
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This paper proposes a cooperative multihop amplify-and-forward (AF) relay protocol for a medium-voltage (MV) power-line access network. The relay transmission scheme is a promising protocol since it provides enhanced network channel capacity which exploits cooperative diversity by combining the relayed signal and the direct signal. We propose a new signaling model for the cooperative multihop AF r... View full abstract»

• ### The Use of Underbuilt Wires to Improve the Lightning Performance of Transmission Lines

Publication Year: 2012, Page(s):205 - 213
Cited by:  Papers (7)
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An unconventional technique to improve the lightning performance of transmission lines, consisting of the addition of grounded wires properly positioned below the phase conductors, is assessed. Overvoltages developed across insulator strings of existing 230-kV lines in response to direct strikes to the towers were simulated using an electromagnetic model. Minimum reductions of these voltages in th... View full abstract»

## Aims & Scope

Installation and operation of apparatus, equipment, structures, materials and systems for the safe, reliable and economic generation, transmission, distribution, conversion, measurement and control of electric energy.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Wilsun Xu
Ph.D., P.Eng.
Dept. Electrical and Computer Eng.
University of Alberta
(9107 - 116 Street)