Electric Power Components and Systems (ELECTR POW COMPO SYS)

Publisher: Taylor & Francis

Journal description

This well-established journal publishes original theoretical and applied papers of permanent reference value related to the broad field of electromechanics, electric machines, and power systems. Specific topics covered include: rotating electric machines - new methods of analysis, computation, and design; advances in materials used in electric machines (e.g. permanent magnets and superconductors); solid-state control of electric machines; linear motors; new types of electric machines; electromagnetic fields in energy converters; control aspects of electrical machines; power system planning; reliability and security; transmission and distribution; dispatching and scheduling; high voltage of dc systems; power system protection; power system stability; and related topics.

Current impact factor: 0.66

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2013 Impact Factor 0.664
2012 Impact Factor 0.62
2011 Impact Factor 0.681
2010 Impact Factor 0.474
2009 Impact Factor 0.349
2008 Impact Factor 0.376
2007 Impact Factor 0.194
2006 Impact Factor 0.079
2005 Impact Factor 0.119
2004 Impact Factor 0.134
2003 Impact Factor 0.13
2002 Impact Factor 0.136
2001 Impact Factor

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.68
Cited half-life 4.70
Immediacy index 0.11
Eigenfactor 0.00
Article influence 0.15
Website Electric Power Components and Systems website
Other titles Electric power components and systems (Online), Electric power components and systems
ISSN 1532-5008
OCLC 45360458
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Taylor & Francis

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Some individual journals may have policies prohibiting pre-print archiving
    • On author's personal website or departmental website immediately
    • On institutional repository or subject-based repository after either 12 months embargo
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • The publisher will deposit in on behalf of authors to a designated institutional repository including PubMed Central, where a deposit agreement exists with the repository
    • STM: Science, Technology and Medicine
    • Publisher last contacted on 25/03/2014
    • This policy is an exception to the default policies of 'Taylor & Francis'
  • Classification
    green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: This article proposes a double-ended synchronous reluctance machine drive to increase the constant power speed ratio and the power factor of a synchronous reluctance machine. The proposed double-ended synchronous reluctance machine drive is formed by two inverters, one connected to an energy source and the other one connected to a floating capacitor bank for reactive power compensation. Two control strategies are presented: the unity power factor control can keep the power factor unity seen from the energy source side inverter under all operating conditions; the optimum inverter utilization control can increase torque output ability and the constant power speed ratio while increasing the power factor. Detailed modeling and simulation of the proposed double-ended synchronous reluctance machine drive are presented. Compared to the traditional single-inverter synchronous reluctance machine drive, the proposed drive is able to reduce the conversion ratio of the front-end DC/DC converter and the rating of each switching device. In addition, three-level voltage output of the proposed drive is also capable to reduce total harmonic distortion. In conclusion, the proposed drive is very attractive for applications for which a high power factor or reactive power regulation is required or when a high constant power speed ratio is desired. 2016
    No preview · Article · Jan 2016 · Electric Power Components and Systems
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    ABSTRACT: This article deals with the performance evaluation of fixed-speed and variable-speed stand-alone wind energy conversion systems using an isolated asynchronous generator. A voltage and frequency controller for an isolated asynchronous generator based variable-speed stand-alone wind energy conversion system is investigated using two back-to-back connected voltage source converters and a battery energy storage system. A three-leg insulated-gate bipolar transistor based voltage source converter is used at the machine side for variable-voltage–variable-frequency energy conversion, and a four-leg insulated-gate bipolar transistor based voltage source converter is used between the load terminals and intermediate DC link for feeding regulated voltage and frequency supply. A voltage and frequency controller for an isolated asynchronous generator based fixed-speed stand-alone wind energy conversion system is also designed and modeled using a four-leg voltage source converter and battery energy storage system. A detailed performance evaluation is made between fixed-speed and variable-speed stand-alone wind energy conversion systems using wind data obtained for Jakhau (Gujarat) situated in India.
    No preview · Article · Jan 2016 · Electric Power Components and Systems
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    ABSTRACT: In this article, an improved version of the electromagnetism-like mechanism is developed and proposed to find the optimal solution for the optimal power flow problem in a power system. To show the effectiveness of the developed method, it has been demonstrated on standard IEEE 30-bus and IEEE 57-bus test systems for seven different objectives that reflect fuel cost minimization with generators that may have either convex or non-convex fuel cost characteristics, voltage profile improvement, voltage stability enhancement, and active and reactive power transmission losses minimization. The results obtained using the improved version of the electromagnetism-like mechanism method are compared with those obtained using different methods reported in the literature. Considering the quality of these results, the proposed method is a quite promising alternative approach for solving optimal power flow problems.
    No preview · Article · Jan 2016 · Electric Power Components and Systems
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    ABSTRACT: This article presents the small-signal analysis and controller design of a novel current-fed bidirectional DC/DC converter for a hybrid energy system. The converter achieves soft switching of all active switches at both sides. The switching sequence of the secondary side active switches naturally clamps the voltage across the primary switches. Thus, no additional clamping circuit is needed. Hence, this converter has high power density, high efficiency, and low device requirements. The dynamic analysis and small-signal modeling is carried out using a state-space averaging technique. The model takes into account the currents through inductances in each transition interval to accurately predict the dynamic behavior of the converter. The design of controller using two-loop average current control is illustrated. Bode plots using MATLAB (The MathWorks, Natick, Massachusetts, USA) are plotted to verify the stability of the complete system and the simulation results obtained using PSIM 9.0 (Powersim Inc., Rockville, Maryland, USA) are presented to verify the controller design and converter's transient performance with a step change in load. The simulation and experimental results show that the small-signal model has good controllability and anti-disturbance resistance.
    No preview · Article · Jan 2016 · Electric Power Components and Systems
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    ABSTRACT: In this article, the enhanced backtracking search algorithm is employed to achieve optimal coordination of directional over-current relays. A novel objective function is formulated to minimize the total operating times while maintaining the validity of the coordination time interval. The proposed technique is applied to optimize the influential variables of the coordination problem, which are plug tap setting, time dial setting, and type of inverse relay characteristics. Both old electromechanical and digital relays are considered in the study. The enhanced backtracking search algorithm is a recent heuristic-based optimization, and its performance in solving relay coordination problem is compared with other well-established algorithms to demonstrate its viability and effectiveness.
    No preview · Article · Jan 2016 · Electric Power Components and Systems
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    ABSTRACT: The inconsistent parameters of different lead-acid batteries in the same battery pack will result in the reduction of battery pack capacity and life. It is difficult to fundamentally solve the inconsistent parameters problem of lead-acid batteries. Battery grouping is a simple and effective approach for solving the performance inconsistency problem by packing batteries with close characteristic parameters. The traditional manual grouping method is labor intensive and prone to errors in measurement that will result in wrong grouping. In this article, a novel lead-acid battery automatic grouping system is developed based on graph cuts. This system consists of a PC server end, a wireless router, and several portable grouping devices. Based on embedded real-time operating, the proposed system realizes battery parameters characterization, data uploading, and automatic grouping processes. Using this battery automatic grouping system, batteries with close charge and discharge characteristics will be grouped into the same battery pack. Experimental results demonstrate that the proposed approach can provide superior performance over traditional manual methods.
    No preview · Article · Jan 2016 · Electric Power Components and Systems
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    ABSTRACT: This article proposes a simple copper loss minimization control algorithm to minimize copper losses of a squirrel-cage induction generator based wind energy conversion system to improve efficiency at low wind speeds. The proposed scheme does not necessitate rotor position information and an encoder. The proposed algorithm is used to find the optimum slip and stator voltage such that efficiency of the squirrel-cage induction generator is increased by minimizing the copper loss. This is particularly useful in extracting the power at low speeds, where losses form a higher percentage of input power when flux is maintained at the rated value. Especially at low wind speeds, the total copper loss can be minimized by decreasing the flux. The proposed algorithm is a simple scalar control that has the potential to reduce losses, and this has been attempted considering voltage and flux saturation limits. To validate the performance of the scheme, a comparison is made with an indirect field-oriented control scheme, in which rotor flux is maintained constant. Simulations are carried out on a typical 2-MW squirrel-cage induction generator in a MATLAB/Simulink environment (The MathWorks, Natick, Massachusetts, USA). Experimentations on 2.3-kW laboratory test setup further validate the efficacy of the proposed scheme. 2016
    No preview · Article · Dec 2015 · Electric Power Components and Systems
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    ABSTRACT: An induction generator always absorbs lagging reactive power from the power network. In most previous power system optimization studies involving induction generator based distributed generation, this generator reactive power demand is calculated using an approximate empirical formula. In addition, shunt compensation capacitors have not been considered as part of the network optimization study. In this article, the use of the per phase equivalent circuit of the induction generator is proposed to compute its reactive power requirement, thus providing a more accurate estimation. A discrete particle swarm optimization algorithm is then employed to address the problem of simultaneous integration of the induction generators and shunt compensation capacitors. The proposed algorithm has the advantage of being able to cope with a mixed search space optimization problem of integer, discrete, and continuous variables. The study is carried out on a standard 69-bus benchmark distribution network. Results show that the use of the approximate empirical formula leads to an underestimation of the machine reactive power demand. The inclusion of shunt compensation capacitors in the optimization process results in lower network reactive power flows with improved network power losses, improved voltage profile, and increased levels of distributed generation integration. 2016
    No preview · Article · Dec 2015 · Electric Power Components and Systems
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    ABSTRACT: –The Thévenin equivalent electromagnetic transient model of the full-bridge modular multi-level converter adopts Dommel's Algorithm to discretize individual capacitor to maintain the identity of each switching level and achieves significant CPU time savings. This article presents an enhanced integral full-bridge modular multi-level converter model with built-in efficient sorting algorithms. Basically it achieves further speedup from the traditional equivalent algorithm by assuming the switch's “OFF” condition as an ideal open circuit, by using the A-stable backward Euler integration method instead of the trapezoidal rule to discretize the individual capacitor in each sub-module and by using the proposed efficient capacitor voltage sorting algorithm. Then the blocking implementation method and the way to simulate the open and short-circuit faults of the internal full-bridge modular multi-level converter devices are also provided to make the full-bridge modular multi-level converter model complete and effective. The validity and scalabilities of the presented model are demonstrated using closed-loop simulation of a back-to-back high-voltage DC system and open-loop simulations of full-bridge modular multi-level converters. The results obtained from both demonstrations have shown that the presented integral model is able to accurately simulate the typical behaviors of the full-bridge modular multi-level converter during normal operation and AC/DC network transients. 2016
    No preview · Article · Dec 2015 · Electric Power Components and Systems
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    ABSTRACT: –To enhance the accuracy and reliability of fault-location estimates, an optimal fault-location estimator for power distribution systems with distributed generations is proposed in this article. Voltage and current measurements recorded at certain location/locations, such as power generation sites, are employed to estimate the fault location. The proposed method is able to make the most of available measurements, which may be from one location or multiple locations. Based on optimal estimation theory, the method is able to estimate the fault location, fault resistances, and true value of measurements. A chi-squared test is adopted to detect and identify possible bad measurements for improved estimation results. Evaluation studies based on a sample power distribution system have been carried out. Evaluation studies have demonstrated that the proposed method is effective for obtaining accurate fault-location estimates, as well as detecting and identifying possible bad measurements. 2016
    No preview · Article · Dec 2015 · Electric Power Components and Systems
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    ABSTRACT: This article investigates the rotor unbalanced magnetic force characteristics of a 12-stator-slot 10-rotor-pole flux-switching permanent magnet machine due to both static and dynamic eccentricity. The equations for radial and tangential components of the unbalanced magnetic force on the rotor are formulated. The 2D finite-element analysis results for a baseline 10-kW 15,000-rpm ferrite flux-switching permanent magnet machine show that both static and dynamic eccentricity will result in a significant amount of unbalanced magnetic force in the flux-switching permanent magnet machine even under the no-load condition. This article also shows that the direction of rotor unbalanced magnetic force due to static eccentricity is fixed, while the direction of rotor unbalanced magnetic force due to dynamic eccentricity is rotating. This research clearly reveals the influence of eccentricity on the performance of flux-switching permanent magnet machine, and facilitates further research on the vibration and acoustic noise analyses of flux-switching permanent magnet machines. 2016
    No preview · Article · Dec 2015 · Electric Power Components and Systems
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    ABSTRACT: A new on-line method for estimating transmission line constants of a power system is proposed in this article. The method applies a digital dynamic filter technique to perform the estimation based on minimization of residual least absolute value. The proposed technique can be used on-line to account for any dynamics changes in line constants. Synchronized phasor measurements are used to feed the dynamic filter. The synchronized samples of voltage and current waveforms, at both the receiving and sending end terminals, are used to set an over-determined system of equations. The problem is formulated as an estimation problem. Different practical case studies are presented. Eventually, the proposed discrete dynamic filtering algorithm estimates the ABCD constants and, consequently, the line parameters of both short and long lines. Effects of different factors, such as noise and unsynchronized samples, are studied. Results obtained show the reliability and accuracy of the method in estimating the transmission line parameters.
    No preview · Article · Dec 2015 · Electric Power Components and Systems

  • No preview · Article · Dec 2015 · Electric Power Components and Systems