Results 21 to 30 of about 201 (163)
Shock and Vibration, 2016 A piezoelectric bimorph cantilevered beam is analyzed dynamically by a longitudinal and transverse coupling theory. When a sinusoidal voltage is applied on the actuating layer of the bimorph, the output voltage of the sensing layer appears as ...
Ting Zhang, Ying Pan, Lijie Cao
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Phasor Estimation of Transient Electrical Signals Composed of Harmonics and Interharmonics
Energies, 2021 Numerical relays have become essential tools for carrying out the protection and surveillance tasks of electrical power systems. These relays implement their functions from the phasors of the electrical network signals, estimated by digital processing ...
Jon Vazquez +3 more
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CPSS Transactions on Power Electronics and Applications, 2021 This paper presents a method on order-reduction of interharmonic analysis based on the principle of interharmonic interaction. First, we obtain the transformation between dynamic phasors in dq coordinate and dynamic phasor sequence components (DPSCs).
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Energies, 2018 Power-quality analyzers are commonly used in power systems to estimate waveform distortion, including the parameters of harmonics/interharmonics. In our study, a calibration scheme was developed and verified.
Qiang Guo +3 more
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Utilization of CHB Multilevel Inverter for Harmonic Reduction in Fuzzy Logic Controlled Multiphase LIM Drives [PDF]
Journal of Electrical and Computer Engineering Innovations, 2020 Background and Objectives: Despite superior privileges that multiphase motors offer in comparison with their three-phase counterparts, in the field of multiphase linear induction motors (LIMs) few studies have been reported until now.
P. Hamedani, A. Shoulaei
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A harmonic and adjacent interharmonics estimation method considering frequency deviation
电力工程技术, 2023 The adjacent interharmonic pairs or single adjacent interhamonic symmetrical to the fundamental/harmonic component can be caused by the large-scale grid connection of renewable energy.
LUO Zhongyou +3 more
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Applied Sciences, 2023 To address the problem of harmonic pollution in power systems, a harmonic and interharmonic detection method based on the adaptive order and the dominant factor algorithms is proposed.
Junsong Gong, Sanjun Liu
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Harmonic detection of PV power generation system based on DFFT-WT-BP
Dianzi Jishu Yingyong, 2019 The existing FFT-WT algorithm and FFT-BP algorithm have advantages only for the detection of certain specific harmonics in photovoltaic systems. In this paper, the FFT-WT algorithm is improved, and a DFFT-WT algorithm is proposed. The FFT-BP algorithm is
Sun Cheng +5 more
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EnergiesIn this paper, a detailed mathematical model for the interharmonic current in a distributed grid-connected photovoltaic (PV) system is proposed and the factors affecting its output characteristics are analyzed comprehensively.
Mingxuan Mao +4 more
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A Proposal for Flicker Evaluation
Eletrônica de Potência, 2014 The measured flicker levels by using the IEC standard 61000-4-15 often far exceed the established compatibility levels, even without the existence of consumer complaints.
Arnaldo José Pereira Rosentino Junior +2 more
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