A Novel Approach to Solving the OHESW Problem for Multilevel Inverters
A new method is presented to compute the switching angles in a multilevel inverter using the Optimized Harmonic Elimination Stepped-Waveform (OHESW) technique so as to produce the required fundamental voltage while at the same time not generate higher order harmonics. Previous work has shown that t...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | Arabic |
| Published: |
Mustansiriyah University/College of Engineering
2010-12-01
|
| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1427 |
| _version_ | 1798022898894503936 |
|---|---|
| author | Jamal Abdul-Kareem Mohammed |
| author_facet | Jamal Abdul-Kareem Mohammed |
| author_sort | Jamal Abdul-Kareem Mohammed |
| collection | DOAJ |
| description |
A new method is presented to compute the switching angles in a multilevel inverter using the Optimized Harmonic Elimination Stepped-Waveform (OHESW) technique so as to produce the required fundamental voltage while at the same time not generate higher order harmonics. Previous work has shown that the transcendental equations characterizing the harmonic content of the inverter output can be converted to polynomial equations which are then solved using the method of Resultants from Elimination theory. However, when there are several DC sources, the degree of the polynomials are quite large making the computational burden of their resultant polynomials via elimination theory quite high. The proposed method with fast recursive algorithm is derived that provide the exact on-line solution to the OHESW problem.The proposed algorithm optimization technique is applied to a multilevel inverter to determine optimum switching angles for eliminating low order harmonics while maintaining the required fundamental voltage to drive an induction motor.
|
| first_indexed | 2024-04-11T17:37:35Z |
| format | Article |
| id | doaj.art-30d4d147b5e44af9ab40245f459e1f7f |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-11T17:37:35Z |
| publishDate | 2010-12-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-30d4d147b5e44af9ab40245f459e1f7f2022-12-22T04:11:34ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252010-12-01144A Novel Approach to Solving the OHESW Problem for Multilevel InvertersJamal Abdul-Kareem Mohammed0Electromechanical Engineering Department, University of Technology, Baghdad, Iraq A new method is presented to compute the switching angles in a multilevel inverter using the Optimized Harmonic Elimination Stepped-Waveform (OHESW) technique so as to produce the required fundamental voltage while at the same time not generate higher order harmonics. Previous work has shown that the transcendental equations characterizing the harmonic content of the inverter output can be converted to polynomial equations which are then solved using the method of Resultants from Elimination theory. However, when there are several DC sources, the degree of the polynomials are quite large making the computational burden of their resultant polynomials via elimination theory quite high. The proposed method with fast recursive algorithm is derived that provide the exact on-line solution to the OHESW problem.The proposed algorithm optimization technique is applied to a multilevel inverter to determine optimum switching angles for eliminating low order harmonics while maintaining the required fundamental voltage to drive an induction motor. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1427Harmonic EliminationOHESWPolynomial |
| spellingShingle | Jamal Abdul-Kareem Mohammed A Novel Approach to Solving the OHESW Problem for Multilevel Inverters Journal of Engineering and Sustainable Development Harmonic Elimination OHESW Polynomial |
| title | A Novel Approach to Solving the OHESW Problem for Multilevel Inverters |
| title_full | A Novel Approach to Solving the OHESW Problem for Multilevel Inverters |
| title_fullStr | A Novel Approach to Solving the OHESW Problem for Multilevel Inverters |
| title_full_unstemmed | A Novel Approach to Solving the OHESW Problem for Multilevel Inverters |
| title_short | A Novel Approach to Solving the OHESW Problem for Multilevel Inverters |
| title_sort | novel approach to solving the ohesw problem for multilevel inverters |
| topic | Harmonic Elimination OHESW Polynomial |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1427 |
| work_keys_str_mv | AT jamalabdulkareemmohammed anovelapproachtosolvingtheoheswproblemformultilevelinverters AT jamalabdulkareemmohammed novelapproachtosolvingtheoheswproblemformultilevelinverters |