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Compact filtering power divider with harmonic suppression
Journal of Electromagnetic Waves and Applications, 2016This paper presents a novel power divider with flltering responses. By using quarter- wavelength resonators with a novel feeding structure, both power division and bandpass responses are obtained, and compact size is realized. Discriminating coupling is utilized to suppress the third harmonic to obtain wide stopband. The isolation resistor is connected
Wan-Li Zhan, Xiao-Lan Zhao
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A Morphological Filter For Estimation of Power System Harmonics
2006 International Conference on Power System Technology, 2006This paper presents a new method based on mathematical morphology for accurate estimation of harmonics and detection of sub-harmonics in power systems. This method, using a morphological transform as a low-pass filter, is developed based on a well-known technique: instantaneous reactive power theory.
Z. Lu, Q. Wu, J. Fitch
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Optimal Design for LC Power Harmonic Filters
International Journal of Power and Energy Systems, 2005This study describes a novel method for designing LC-type (single-tuned) filters to reduce harmonic distortion. The proposed method minimizes the total cost of the filters, such that the harmonic distortion is within an acceptable range. The filter design problem is formulated as a combinatorial optimization problem with a nondifferentiable objective ...
Y.T. Hsiao, C.H. Chen, H.W. Cheng
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Distributed Power Amplifier with electronic harmonic filtering
2009 IEEE Radio Frequency Integrated Circuits Symposium, 2009Providing all band power amplification and harmonic rejection are objectives with orthogonal implementations. This paper is a review of a new Distributed Power Amplifier (DPA) architecture using programmable frequency dispersion. This frequency domain dispersion is designed to achieve electronic harmonic filtering within the intended frequency band ...
Bruce Thompson +6 more
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Absorptive Filters for Microwave Harmonic Power
Proceedings of the IRE, 1959Utilizing the cutoff properties of certain lossy periodic waveguide structures, low reflection absorptive filters for harmonic power at microwave frequencies have been obtained. Various approaches to specific absorptive filters are discussed, and the experimental results presented demonstrate the validity of the concepts developed. Insertion loss of up
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Harmonic Intelligent Control with Active Power Filter
Proceedings of the 41st International Universities Power Engineering Conference, 2006This paper presents the procedures required to determine the locations and sizes of multiple-Active Power Filters (APFs) to reduce harmonic distortion in a power system with harmonic sources. The objective function is to minimize the APFs injection currents while satisfying harmonic voltages, total harmonic voltage distortions within IEEE-519 ...
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Active filter for reactive power and harmonics compensation
1986 17th Annual IEEE Power Electronics Specialists Conference, 1986This paper describes a three-phase active filter aimed at the compensation of reactive power and current harmonics of a symmetrical load. The filter employs an inductor for energy storage and a two-quadrant PWM bridge converter.
MALESANI, LUIGI +2 more
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Computer-aided design of power harmonic filters
Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242), 2002Power harmonic filters for rectifiers, motor drives and UPS are usually designed by characterizing currents and voltages by their harmonic components. Usually, no attempt is made to determine the effect of switching of the filters, or of the system operation during a fault in the filter. A superior design method is to use modeling tools to characterize
N.K. Medora, A. Kusko
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Harmonic Identification Methods Based on Moving Average Filters for Active Power Filters
2008 IEEE Industry Applications Society Annual Meeting, 2008Harmonic detection is very important in the control of active power filters (APFs). This paper presents a technique for harmonic identification, based on moving average filters (MVAs) and heterodyning, very suitable for digital implementation. The approach of fundamental component identification is contributed both for single-phase and three-phase ...
Francisco D. Freijedo +3 more
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Passive harmonic filters [for electrical power systems]
2017The current chapter presents the harmonic passive filters commonly used in the industry, their classifications, configurations, advantages and disadvantages, theoretical as well as practical design considerations and the data required for their installation. The goal of this chapter is to present the frequency characteristics variation and consequently
Chamberlin Stephane Mboving +1 more
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