Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load
The paper describes problem of isolating, evaluating and eliminating interharmonics of current using the example of the operation of an asynchronous electric motor operating at a variable periodic load. The complexity of the problem lies in the fact that the value of the current changes depending on...
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IEEE
2021-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/9625968/ |
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| author | Boris A. Avdeev Aleksei V. Vyngra Sergei G. Chernyi Anton A. Zhilenkov Sergey S. Sokolov |
| author_facet | Boris A. Avdeev Aleksei V. Vyngra Sergei G. Chernyi Anton A. Zhilenkov Sergey S. Sokolov |
| author_sort | Boris A. Avdeev |
| collection | DOAJ |
| description | The paper describes problem of isolating, evaluating and eliminating interharmonics of current using the example of the operation of an asynchronous electric motor operating at a variable periodic load. The complexity of the problem lies in the fact that the value of the current changes depending on the load of the electric motor, which can change by a multiple of the frequency of the supply network, thereby introducing an interharmonic distortion of the current waveform. The main indicators of harmonic distortion of currents and voltages are the individual harmonic coefficient and total harmonic distortion, which must not exceed the IEC requirements, but at the same time it worsens the operation of the entire network due to interharmonics. The paper applies simulation modeling in the Matlab/Simulink mathematical package. The model consists of an asynchronous motor with a short-circuited rotor, a variable periodic load unit with a three-phase voltage source, and a current spectral analysis subsystem. The parameters of the main current harmonic were determined. An algorithm for the selection of interharmonics of current arising as a result of a variable periodic load is given. By representing the difference between the current curve and the fundamental harmonic as a series of Fourier harmonics, the frequencies, amplitudes and phases of the interharmonics were determined. To reduce the current interharmonics for devices operating with variable periodic load, it is proposed to use active harmonic filters of fixed filtration or with automatic adjustment of filtration parameters. Experimental studies of the active filter with the proposed operation algorithm have been carried out. The results of the experiment justified the expediency of using this for suppressing interharomics in electric drive circuits. |
| first_indexed | 2024-12-14T08:40:10Z |
| format | Article |
| id | doaj.art-9951cdb9e09d441ca4003601818e4702 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-14T08:40:10Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-9951cdb9e09d441ca4003601818e47022022-12-21T23:09:18ZengIEEEIEEE Access2169-35362021-01-01915841215841910.1109/ACCESS.2021.31304429625968Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic LoadBoris A. Avdeev0https://orcid.org/0000-0001-6902-245XAleksei V. Vyngra1Sergei G. Chernyi2https://orcid.org/0000-0001-5702-3260Anton A. Zhilenkov3Sergey S. Sokolov4Department of Ship Electrical Equipment and Production Automation, Kerch State Maritime Technological University, Kerch, RussiaDepartment of Ship Electrical Equipment and Production Automation, Kerch State Maritime Technological University, Kerch, RussiaDepartment of Ship Electrical Equipment and Production Automation, Kerch State Maritime Technological University, Kerch, RussiaDepartment of Cyber-Physical Systems, Saint Petersburg State Marine Technical University, Saint-Petersburg, RussiaComplex Information Security Department, Admiral Makarov State University of Maritime and Inland Shipping, Saint-Petersburg, RussiaThe paper describes problem of isolating, evaluating and eliminating interharmonics of current using the example of the operation of an asynchronous electric motor operating at a variable periodic load. The complexity of the problem lies in the fact that the value of the current changes depending on the load of the electric motor, which can change by a multiple of the frequency of the supply network, thereby introducing an interharmonic distortion of the current waveform. The main indicators of harmonic distortion of currents and voltages are the individual harmonic coefficient and total harmonic distortion, which must not exceed the IEC requirements, but at the same time it worsens the operation of the entire network due to interharmonics. The paper applies simulation modeling in the Matlab/Simulink mathematical package. The model consists of an asynchronous motor with a short-circuited rotor, a variable periodic load unit with a three-phase voltage source, and a current spectral analysis subsystem. The parameters of the main current harmonic were determined. An algorithm for the selection of interharmonics of current arising as a result of a variable periodic load is given. By representing the difference between the current curve and the fundamental harmonic as a series of Fourier harmonics, the frequencies, amplitudes and phases of the interharmonics were determined. To reduce the current interharmonics for devices operating with variable periodic load, it is proposed to use active harmonic filters of fixed filtration or with automatic adjustment of filtration parameters. Experimental studies of the active filter with the proposed operation algorithm have been carried out. The results of the experiment justified the expediency of using this for suppressing interharomics in electric drive circuits.https://ieeexplore.ieee.org/document/9625968/Interharmonicsvariable periodic loadhigher harmonicsFourier |
| spellingShingle | Boris A. Avdeev Aleksei V. Vyngra Sergei G. Chernyi Anton A. Zhilenkov Sergey S. Sokolov Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load IEEE Access Interharmonics variable periodic load higher harmonics Fourier |
| title | Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load |
| title_full | Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load |
| title_fullStr | Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load |
| title_full_unstemmed | Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load |
| title_short | Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load |
| title_sort | evaluation and procedure for estimation of interharmonics on the example of non sinusoidal current of an induction motor with variable periodic load |
| topic | Interharmonics variable periodic load higher harmonics Fourier |
| url | https://ieeexplore.ieee.org/document/9625968/ |
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