Quantitative Analysis of the Interactive Influence for Harmonic Emission in Wind Farms
Frontiers in Energy Research, 2022 In the process of integrating large-scale wind farms into the power system, the harmonic interaction among wind farms causes potential safe and stable operation threats to the power grid.
Jinhui Shi +4 more
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Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]
, 2014 Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA +3 more
core +1 more source
Magnitude-Reshaping Strategy for Harmonic Suppression of VSG-Based Inverter Under Weak Grid
IEEE Access, 2020 Driven by inertial demand from the grid, the virtual synchronous generators (VSGs) are widely utilized in distributed generation systems. However, harmonic sources in the distributed generation systems with high grid impedance will cause grid voltage ...
Wen Yang +3 more
doaj +1 more source
Novel Sub-Harmonic Injection-Locked Balanced Oscillator [PDF]
, 2001 A novel sub-harmonic injection-locked balanced oscillator is proposed. The circuit provides two outputs with a 180° ° phase difference by employing a transmission line section for impedance transformation to meet the oscillation conditions.
Chongcheawchamnan, M. +2 more
core +1 more source
A 300-800MHz Tunable Filter and Linearized LNA applied in a Low-Noise Harmonic-Rejection RF-Sampling Receiver [PDF]
, 2010 A multiband flexible RF-sampling receiver aimed at software-defined radio is presented. The wideband RF sampling function is enabled by a recently proposed discrete-time mixing downconverter. This work exploits a voltage-sensing LNA preceded by a tunable
Klumperink, Eric A.M. +3 more
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A Harmonic Impedance Identification Method of Traction Network Based on Data Evolution Mechanism
Energies, 2020 In railway electrification systems, the harmonic impedance of the traction network is of great value for avoiding harmonic resonance and electrical matching of impedance parameters between trains and traction networks.
Ruixuan Yang, Fulin Zhou, Kai Zhong
doaj +1 more source
Active Filter Reference Calculations Based on Customers’ Current Harmonic Emissions
Energies, 2021 This paper deals with harmonics compensation in industrial and distribution networks using an active filter (AcF). When defining the AcF’s reference current, it is important to properly consider the network background harmonic distortion.
Aljaž Špelko +3 more
doaj +1 more source
LC compensators based on transmission loss minimization for nonlinear loads [PDF]
, 2004 This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted.
Aziz, A, Zobaa, AF
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Frequency Dependent Specific Heat from Thermal Effusion in Spherical Geometry [PDF]
, 2010 We present a novel method of measuring the frequency dependent specific heat at the glass transition applied to 5-polyphenyl-4-ether. The method employs thermal waves effusing radially out from the surface of a spherical thermistor that acts as both a ...
Bo Jakobsen +6 more
core +3 more sources
Atopic Dermatitis Nomenclature Variants Can Impede Harmonization [PDF]
Journal of Investigative Dermatology, 2012 Abbreviations: AD, atopic dermatitis; sIgE, specific IgE; WAO, World Allergy ...
openaire +2 more sources