Results 21 to 30 of about 89,929 (312)
A synchronizing signal detection technique for grid voltage based on new CDSOGI-PLL
Xibei Gongye Daxue Xuebao, 2023 When the grid voltage contains many harmonics, the filtering effect of the phase-locked loop based on dual second-order generalized integrator (DSOGI-PLL) is not ideal, and the frequency of synchronous signal extracted through the DSOGI-PLL fluctuates. A
KE Shanwen, LI Yuren
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Experimental Analysis on Influences of Harmonic Voltage at High-Voltage Network on Harmonic Current at Medium-Voltage Network [PDF]
Journal of International Council on Electrical Engineering, 2012 In this paper, we describe how harmonic voltage in transmission networks influences harmonic currents in distribution networks. In the conventional equivalent circuit for harmonic analysis based on computer simulations, harmonic currents in distribution networks were regarded as a constant harmonic current source.
Junichi Inagaki, Yasuhiro Hayashi
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Harmonics Forecasting of Wind and Solar Hybrid Model Driven by DFIG and PMSG Using ANN and ANFIS
IEEE Access, 2023 Grid integration of Renewable Energy Systems (RES) involves various types of power electronics-based converters and inverters. The use of these electronic-based devices results in inducing both current and voltage harmonics to the grid.
Fawaz M. Al Hadi +2 more
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Harmonic voltage measurement error of the capacitor voltage transformer
PLOS ONE, 2018 This paper explores the mechanism for the harmonic voltage measurement error (HVME) of a capacitor voltage transformer (CVT) in a comprehensive way and develops a practical error correction method to improve the harmonic measurement performance of a CVT.
Jian Le, Hao Zhang, Chao Gao, Qian Zhou
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Advances in Electrical and Electronic Engineering, 2018 Voltage harmonics, sag, and swell are the most harmful disturbances in distribution systems. This paper introduces a novel effective controller method for simultaneous compensation of both voltage sag/swell and voltage harmonics by using multifunctional ...
Mustafa Inci +4 more
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Вестник Самарского государственного технического университета. Серия: Технические науки, 2021 The existing calculation methods in various sources represent rectifier installations as sources of higher harmonics. In this case, the current value of the primary winding of the transformer in the form of rectangles is decomposed into a Fourier series ...
Vyacheslav S. Osipov
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Voltage Harmonic Reduction for Randomly Time-Varying Source Characteristics and Voltage Harmonics [PDF]
IEEE Transactions on Power Delivery, 2006 Potential applications of probabilistic modeling of current and voltage harmonics concern many aspects of power system engineering as accurate prediction of power system harmonic behavior provides important information to utility companies and equipment designers.
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Harmonic influence analysis of unified power flow controller based on modular multilevel converter
Journal of Modern Power Systems and Clean Energy, 2016 The unified power flow controller (UPFC) based on modular multilevel converter (MMC) is the most creative flexible ac transmission system (FACTS) device.
Yubo Yuan +5 more
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Interleaved Pulse Width Modulation Based on Modified Carrier in Parallel Operation
IEEE Access, 2021 An interleaved pulse width modulation (PWM) can be employed in a parallel operation of three-phase converters because the interleaved PWM increases the equivalent switching frequency and significantly enhances the output current harmonics.
Hyun-Sam Jung
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Investigation of the Heating Processes and Temperature Field of the Frequency-controlled Asynchronous Engine Based on Mathematical Models [PDF]
, 2019 The study of the temperature field of the engine for non-stationary modes is done. A numerical simulation of a non-stationary thermal process using dynamic EHD, the characteristic of the rate of rise of temperatures is done.
Dulfan, S. (Sergii) +2 more
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