Results 21 to 30 of about 946 (192)

Compressed Sensing High-accuracy Detection for Electric Power Interharmonics [PDF]

open access: yes, 2014
Interharmonics frequencies are not integer multiple of the fundamental frequency, and interharmonics amplitudes are far less than fundamental amplitude and harmonics amplitudes,  which mean high sensitivity to desynchronization problems, so it’s dificult
Wang, Jingfang, Cao, Tiejun
core   +1 more source

An Order-Reduction Method of Interharmonic Analysis Model Based on the Principle of Interharmonic Interaction

open access: yesCPSS 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).
openaire   +1 more source

Line-Start Permanent Magnet Synchronous Motor Supplied with Voltage Containing Negative-Sequence Subharmonics

open access: yesEnergies, 2023
In some power systems, the voltage waveform contains frequency components less than fundamental, called subharmonics or subsynchronous interharmonics. Voltage subharmonics can be both positive- and negative-sequence, independent of their frequency (order)
Piotr Gnaciński   +3 more
doaj   +1 more source

Polyspectral signal analysis techniques for interharmonics in shipboard power systems [PDF]

open access: yes, 2008
textIn this dissertation, we present the theory and application of polyspectral signal analysis techniques for interharmonics in shipboard power systems.
Kim, Taekhyun, 1977-
core   +1 more source

Evaluation of Voltage Transformers’ Accuracy in Harmonic and Interharmonic Measurement

open access: yesIEEE Open Journal of Instrumentation and Measurement, 2022
The measurement of Power Quality (PQ), generally performed at Low Voltage (LV) level, is gaining more and more importance also at the Medium Voltage (MV) level, due to the increasing presence of switching power converters (both loads or generators ...
Gabriella Crotti   +4 more
doaj   +1 more source

Analysis of the Propagation Characteristic of Subsynchronous Oscillation in Wind Integrated Power System

open access: yesEnergies, 2019
This paper proposes oscillation propagation factors to analyze power oscillations caused by the interharmonics of doubly fed induction generators (DFIG) at different points in the power system.
Zhiping Wen   +5 more
doaj   +1 more source

Analysis of Reactive Power in Electrical Networks Supplying Nonlinear Fast-Varying Loads

open access: yesEnergies, 2023
This study concerns problems related to the assessment of reactive power in power networks with nonlinear fast-varying loads, such as electric arc furnaces, rolling mill drives, etc. The operation of this type of load is characterized by the introduction
Yuriy Sayenko   +2 more
doaj   +1 more source

Assessing Time-Varying Harmonic Interactions in a Wind Park

open access: yesIEEE Access, 2021
The harmonic interaction mechanism in a wind park is examined in this paper. The paper investigates the feasibility of a solution to the yet challenging harmonic contribution estimation from multiple sources in a wind park with limited available ...
Vineetha Ravindran   +3 more
doaj   +1 more source

High-Power Induction Motors Supplied with Voltage Containing Subharmonics

open access: yesEnergies, 2020
In some power networks, components of frequency less than the frequency of the fundamental voltage harmonic called subharmonics or subsynchronous interharmonics occur.
Piotr Gnaciński, Piotr Klimczak
doaj   +1 more source

Wavelet-Based Harmonic Magnitude Measurement in the Presence of Interharmonics [PDF]

open access: yes, 2023
The increasing proliferation of power electronic converters, nonlinear loads, and distributed generation are leading to increased levels of harmonic and interharmonics in power networks.
Häselbarth, Stefan   +9 more
core   +1 more source

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