The Experts below are selected from a list of 26955 Experts worldwide ranked by ideXlab platform
Zeng Jun - One of the best experts on this subject based on the ideXlab platform.
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Analysis and evaluation on the Electric Power Quality of wind farm
Control theory & applications, 2008Co-Authors: Zeng JunAbstract:Based on indices of Electric Power Quality,we consider Power fluctuation an additive index of Electric Power Quality for a wind farm in real conditions.We adopt analytic hierarchy process(AHP) to obtain weighted vector for every index,and introduce a synthetic evaluation which combines probability and statistics with fuzzy mathematics to evaluate the Electric Power Quality.Finally we validate the feasibility by measured date of this method.
Ramon I. Diego - One of the best experts on this subject based on the ideXlab platform.
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A review of measurement and analysis of Electric Power Quality on shipboard Power system networks
Renewable and Sustainable Energy Reviews, 2016Co-Authors: Julio Barros, Ramon I. DiegoAbstract:Abstract Electric Power Quality is an important aspect of increasing concern in Power system networks in ships. A poor Power Quality not only affects the performance of the ship׳s Electrical installations, but it also greatly affects the efficient use of energy, the security of navigation and the safety of life at sea. This paper presents an extensive critical literature review of the main contributions in the principal aspects of Power Quality in ships. Voltage and frequency fluctuations, voltage dips and swells, transients and voltage notching, fault detection and classification, harmonic distortion and voltage imbalance are reviewed and discussed. Finally, Power Quality instrumentation and Power Quality regulations for Electrical installations in ships are also considered.
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Applications of wavelets in Electric Power Quality: Voltage events
Electric Power Systems Research, 2012Co-Authors: Julio Barros, Ramon I. Diego, Matilde De ApraizAbstract:Abstract Voltage events are one of the most severe Power Quality disturbances in modern Power systems because of their detrimental effect on equipment. The development of new methods for detection and evaluation of voltage events is at present a major concern. This paper presents an extensive literature review of the application of wavelet transforms in the detection and analysis of voltage events and provides a short description of the different methods proposed. The different proposals for real-time implementation of wavelets and the de-noising methods used to enhance the capabilities of the wavelet-based detection methods are also reviewed.
Julio Barros - One of the best experts on this subject based on the ideXlab platform.
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A review of measurement and analysis of Electric Power Quality on shipboard Power system networks
Renewable and Sustainable Energy Reviews, 2016Co-Authors: Julio Barros, Ramon I. DiegoAbstract:Abstract Electric Power Quality is an important aspect of increasing concern in Power system networks in ships. A poor Power Quality not only affects the performance of the ship׳s Electrical installations, but it also greatly affects the efficient use of energy, the security of navigation and the safety of life at sea. This paper presents an extensive critical literature review of the main contributions in the principal aspects of Power Quality in ships. Voltage and frequency fluctuations, voltage dips and swells, transients and voltage notching, fault detection and classification, harmonic distortion and voltage imbalance are reviewed and discussed. Finally, Power Quality instrumentation and Power Quality regulations for Electrical installations in ships are also considered.
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Applications of wavelets in Electric Power Quality: Voltage events
Electric Power Systems Research, 2012Co-Authors: Julio Barros, Ramon I. Diego, Matilde De ApraizAbstract:Abstract Voltage events are one of the most severe Power Quality disturbances in modern Power systems because of their detrimental effect on equipment. The development of new methods for detection and evaluation of voltage events is at present a major concern. This paper presents an extensive literature review of the application of wavelet transforms in the detection and analysis of voltage events and provides a short description of the different methods proposed. The different proposals for real-time implementation of wavelets and the de-noising methods used to enhance the capabilities of the wavelet-based detection methods are also reviewed.
Chi-jui Wu - One of the best experts on this subject based on the ideXlab platform.
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A flexible voltage flicker teaching facility for Electric Power Quality education
IEEE Transactions on Power Systems, 1998Co-Authors: Wei-nan Chang, Chi-jui WuAbstract:A voltage flicker teaching facility is developed for Electric Power Quality education. The facility consists of a single and three-phase voltage flicker generator, measurement devices, and a lamp test system. The modulation amplitudes and frequencies based on the UIE 10 Hz equivalent voltage flicker value (/spl Delta/V/sub 10/) can be arbitrarily assigned by software with high accuracy. Three experiments can be offered to students, including the introduction of voltage flicker with finite or infinite frequency components and the effect of voltage flicker on lamps. This hardware teaching facility can give students a realistic and practical concept about voltage flicker.
R. P. Merritt - One of the best experts on this subject based on the ideXlab platform.
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RURAL FACILITY Electric Power Quality ENHANCEMENT
1991Co-Authors: M. Wilson, J. D. Aspnes, R. P. Merritt, B.d. SpellAbstract:Electric Power disturbances are known to be more prevalent in small, isolated Power systems than in larger interconnected grids, which service most of the United States. This fact has given rise to a growing concern about the relative merits of different types of Power conditioning equipment and their effectiveness in protecting sensitive electronics and essential loads in rural Alaska. A study has been conducted which compares isolation transformers, voltage regulators, Power conditioners, un-interruptible Power supplies and indoor computer surge suppressors in their ability to suppress the various disturbances, which have been measured in several Alaskan communities. These include voltage sags and surges, impulses, blackouts, frequency variations and long-term voltage abnormalities. In addition, the devices were also subjected to fast, high-magnitude impulses such as might be expected in the event of a lightning strike to or near utility distribution equipment. The solutions for Power line problems will vary for different load applications and for different rural Electrical environments. The information presented in this report should prove to be valuable in making the analysis.
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RURAL FACILITY Electric Power Quality ANALYSIS
1991Co-Authors: J. D. Aspnes, B.d. Spell, Y Q Zhao, R. P. MerrittAbstract:This report gives results of a recently completed data collection and analysis project investigating Electric Power Quality of two isolated utility systems in Alaska. This is the second phase of a similar effort reported in 1984, which provided the first comprehensive Power Quality data from four small Alaskan communities. In this report, second generation instrumentation is described and comprehensive data and data analyses are presented. These data are important because of the increased use throughout Alaska of Electrical and electronic equipment that may be damaged by Power system disturbances.
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Rural-facility Electric-Power Quality analysis. Final report
1991Co-Authors: J. D. Aspnes, B.d. Spell, Y Q Zhao, R. P. MerrittAbstract:The report gives results of a recently completed data collection and analysis project investigating Electric Power Quality of two isolated utility systems in Alaska. This is the second phase of a similar effort reported in 1984 which provided the first comprehensive Power Quality data from four small Alaskan communities. In the report, second generation instrumentation is described and comprehensive data and data analyses are presented. These data are important because of the increased use throughout Alaska of Electrical and electronic equipment that may be damaged by Power system disturbances.