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Harmonic current suppression method with adaptive filter for permanent magnet synchronous motor
, 2020Due to the distortion of air gap magnetic field and the inherent non-linear characteristics of the inverter, the stator current of permanent magnet synchronous motor (PMSM) contains a large number of high order harmonic components, which distorts the ...
Zhengqiang Song +4 more
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Harmonic pricing model based on harmonic costs and harmonic current excessive penalty
2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011Harmonic will do great harm to power grid and cause economic losses. In order to reduce such losses, the power utilities need additional investment for harmonic suppression measures. The harmonic losses and the additional investment capital together constitute the harmonic costs and they are the basis of harmonic pricing.
null Yong Peng +3 more
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A NILM algorithm with enhanced disaggregation scheme under harmonic current vectors
Energy and Buildings, 2019In the smart home context, one of the features that most users would desire is the knowledge of the operation of each electrical appliance without the need to install expensive smart plugs or measuring equipment at each outlet-appliance.
A. Bouhouras +4 more
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Harmonics in transformer magnetizing currents
Proceedings of the American Institute of Electrical Engineers, 1915The purpose of this paper is to show in a concise manner the cause and effects of higher harmonic currents in magnetizing currents of transformers. A hypothetical case is analyzed to show the cause of the harmonics; then the schemes of connecting transformers that are commonly used for polyphase transformation are taken up and the effects of the ...
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Harmonics in opposed current converters
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012Practical switching devices have finite turn-on and turn-off times. Normally a blanking time is added between the turn-off and turn-on of switches to avoid a short circuit during switching. This blanking time results in a current dependent voltage error of the pulse width modulated output of a converter.
Schellekens, J.M. +3 more
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High impedance fault detection based on Stockwell transform and third harmonic current phase angle
Electric power systems research, 2019A new method for high impedance fault detection is proposed in this paper. Stockwell transform is used to extract the third harmonic current phase angle, measured only at the substation, whereas the moving standard deviation continuously monitor this ...
É. M. Lima, N. Brito, B. A. Souza
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Partial Harmonic Current Compensation for Multifunctional Photovoltaic Inverters
IEEE transactions on power electronics, 2019Recent works have addressed the ancillary services provided by multifunctional photovoltaic inverters. This concept is based on the addition of extra functions to the conventional photovoltaic systems, such as harmonic current compensation of nonlinear ...
L. S. Xavier +3 more
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Stator Harmonic Current Suppression for DFIG System Considering Integer Harmonics and Interharmonics
IEEE transactions on industrial electronics (1982. Print), 2019This paper presents a stator harmonic current suppression method for a doubly fed induction generator (DFIG) under the distorted grid voltage with the consideration of integer harmonics and interharmonics.
B. Pang, H. Nian, Chao Wu, P. Cheng
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Harmonic Contributions Evaluation With the Harmonic Current Vector Method
IEEE Transactions on Power Delivery, 2008A method to evaluate harmonic contributions at the point of common coupling is presented in this paper. The proposed approach is based on the harmonic current vector method where reference impedances are introduced. Resistance defined at fundamental frequency with measurements is used as the customer-side reference impedance.
Tomaz Pfajfar +2 more
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International Journal of Electrical Power & Energy Systems, 2019
Non-linear loads connected to power system have increased considerably in the recent decades. Traditional generation based on hydro and thermal power plants cannot mitigate harmonic currents.
H. Pereira +3 more
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Non-linear loads connected to power system have increased considerably in the recent decades. Traditional generation based on hydro and thermal power plants cannot mitigate harmonic currents.
H. Pereira +3 more
semanticscholar +1 more source