Selective harmonic elimination method for unequal DC sources of multilevel inverters
This paper presented an analytical and closed-form solution for the harmonic contents that were injected in the five-level inverters from asymmetrical DC sources or batteries which were suitable for renewable energy sources. In the five-level inverters, two DC sources V1 and V2 were used to synthesi...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2019-10-01
|
| Series: | Automatika |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/00051144.2019.1621048 |
| _version_ | 1811325455037366272 |
|---|---|
| author | Mahrous Ahmed Mohamed Orabi Sherif Ghoneim Mosleh Alharthi Farhan Salem Bassem Alamri Saad Mekhilef |
| author_facet | Mahrous Ahmed Mohamed Orabi Sherif Ghoneim Mosleh Alharthi Farhan Salem Bassem Alamri Saad Mekhilef |
| author_sort | Mahrous Ahmed |
| collection | DOAJ |
| description | This paper presented an analytical and closed-form solution for the harmonic contents that were injected in the five-level inverters from asymmetrical DC sources or batteries which were suitable for renewable energy sources. In the five-level inverters, two DC sources V1 and V2 were used to synthesize the output voltage. Therefore, two transcendental equations were formulated for the fundamental and the third harmonic orders based on the unequal DC sources V1 and V2. These transcendental equations were solved analytically for low switching control technique. The proposed solution included the modulation index change which resulted in changing the fundamental component. Therefore, two switching angles are formulated and solved analytically to control the amplitude of the fundamental voltage and cancel the third order harmonic. A well-known third order equation was generated. Thus, a closed-form solution for the above two switching angles will be generated in terms of the modulation index. The proposed solution was tested for a wide range of V1/V2 ratio. Some selected simulation and experimental results were provided to validate the proposed method for wide ranges of both modulation index and V1/V2 ratio. |
| first_indexed | 2024-04-13T14:34:37Z |
| format | Article |
| id | doaj.art-213cd606da734443ad98eef98356c1a5 |
| institution | Directory Open Access Journal |
| issn | 0005-1144 1848-3380 |
| language | English |
| last_indexed | 2024-04-13T14:34:37Z |
| publishDate | 2019-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Automatika |
| spelling | doaj.art-213cd606da734443ad98eef98356c1a52022-12-22T02:43:05ZengTaylor & Francis GroupAutomatika0005-11441848-33802019-10-0160437838410.1080/00051144.2019.16210481621048Selective harmonic elimination method for unequal DC sources of multilevel invertersMahrous Ahmed0Mohamed Orabi1Sherif Ghoneim2Mosleh Alharthi3Farhan Salem4Bassem Alamri5Saad Mekhilef6College of Engineering, Taif UniversityAswan UniversityCollege of Engineering, Taif UniversityCollege of Engineering, Taif UniversityCollege of Engineering, Taif UniversityCollege of Engineering, Taif UniversityUniversity of MalayaThis paper presented an analytical and closed-form solution for the harmonic contents that were injected in the five-level inverters from asymmetrical DC sources or batteries which were suitable for renewable energy sources. In the five-level inverters, two DC sources V1 and V2 were used to synthesize the output voltage. Therefore, two transcendental equations were formulated for the fundamental and the third harmonic orders based on the unequal DC sources V1 and V2. These transcendental equations were solved analytically for low switching control technique. The proposed solution included the modulation index change which resulted in changing the fundamental component. Therefore, two switching angles are formulated and solved analytically to control the amplitude of the fundamental voltage and cancel the third order harmonic. A well-known third order equation was generated. Thus, a closed-form solution for the above two switching angles will be generated in terms of the modulation index. The proposed solution was tested for a wide range of V1/V2 ratio. Some selected simulation and experimental results were provided to validate the proposed method for wide ranges of both modulation index and V1/V2 ratio.http://dx.doi.org/10.1080/00051144.2019.1621048Multilevel inverters (MLIs)selective harmonic elimination (SHE)DC–AC power conversionrenewable energy sourcestotal harmonic distortion |
| spellingShingle | Mahrous Ahmed Mohamed Orabi Sherif Ghoneim Mosleh Alharthi Farhan Salem Bassem Alamri Saad Mekhilef Selective harmonic elimination method for unequal DC sources of multilevel inverters Automatika Multilevel inverters (MLIs) selective harmonic elimination (SHE) DC–AC power conversion renewable energy sources total harmonic distortion |
| title | Selective harmonic elimination method for unequal DC sources of multilevel inverters |
| title_full | Selective harmonic elimination method for unequal DC sources of multilevel inverters |
| title_fullStr | Selective harmonic elimination method for unequal DC sources of multilevel inverters |
| title_full_unstemmed | Selective harmonic elimination method for unequal DC sources of multilevel inverters |
| title_short | Selective harmonic elimination method for unequal DC sources of multilevel inverters |
| title_sort | selective harmonic elimination method for unequal dc sources of multilevel inverters |
| topic | Multilevel inverters (MLIs) selective harmonic elimination (SHE) DC–AC power conversion renewable energy sources total harmonic distortion |
| url | http://dx.doi.org/10.1080/00051144.2019.1621048 |
| work_keys_str_mv | AT mahrousahmed selectiveharmoniceliminationmethodforunequaldcsourcesofmultilevelinverters AT mohamedorabi selectiveharmoniceliminationmethodforunequaldcsourcesofmultilevelinverters AT sherifghoneim selectiveharmoniceliminationmethodforunequaldcsourcesofmultilevelinverters AT moslehalharthi selectiveharmoniceliminationmethodforunequaldcsourcesofmultilevelinverters AT farhansalem selectiveharmoniceliminationmethodforunequaldcsourcesofmultilevelinverters AT bassemalamri selectiveharmoniceliminationmethodforunequaldcsourcesofmultilevelinverters AT saadmekhilef selectiveharmoniceliminationmethodforunequaldcsourcesofmultilevelinverters |