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Unified Selective Harmonic Elimination for Multilevel Converters
Yang, Kehu1; Zhang, Qi1; Zhang, Jianjun1; Yuan, Ruyi2; Guan, Qiang2; Yu, Wensheng3; Wang, Jin4
Source PublicationIEEE TRANSACTIONS ON POWER ELECTRONICS
2017-02-01
Volume32Issue:2Pages:1579-1590
SubtypeArticle
AbstractFor multilevel converters, as their selective harmonic elimination (SHE) equations are highly related to the switching patterns, it is almost impossible to give a complete study for all the switching patterns under the traditional SHE framework. In this paper, a unified SHE approach is proposed, in which the various SHE equations for different switching patterns are merged into one group of unified SHE equations and the inequality constraints on the switching angles are eliminated at all. This unified SHE equations can be solved by any methods, which have been used in solving the traditional SHE problems. By using the theory of Groebner bases and symmetric polynomials, all the possible switching patterns and the corresponding switching angles can be solved simultaneously. The study on the case for four switching angles discovers some unusual switching patterns that have the lowest total harmonic distortion for low-modulation indices. Also, the case for nine switching angles with modulation index m = 0.72 is studied; in total, there exist 43 groups of switching angles, which belong to 33 different switching patterns. Experiments on a 13-level cascaded-H bridge converter verify the correctness of this unified multilevel SHE approach.
KeywordGroebner Bases Multilevel Converter Selective Harmonic Elimination (She) Switching Pattern Symmetric Polynomials
WOS HeadingsScience & Technology ; Technology
DOI10.1109/TPEL.2016.2548080
WOS KeywordVOLTAGE-SOURCE CONVERTERS ; PWM ; INVERTERS ; MODULATION ; SYMMETRY ; COMPENSATION ; EQUATIONS ; FORMULATION ; STRATEGY ; DESIGN
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(51107144 ; Fundamental Research Funds for the Central Universities(2009QJ12) ; 61174190 ; 61370176 ; 61571064)
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000388867300060
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/13375
Collection综合信息系统研究中心
Affiliation1.China Univ Min & Technol, Sch Mech Elect & Informat Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Automat, Integrated Informat Syst Res Ctr, Beijing 100190, Peoples R China
3.Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
4.Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43210 USA
Recommended Citation
GB/T 7714
Yang, Kehu,Zhang, Qi,Zhang, Jianjun,et al. Unified Selective Harmonic Elimination for Multilevel Converters[J]. IEEE TRANSACTIONS ON POWER ELECTRONICS,2017,32(2):1579-1590.
APA Yang, Kehu.,Zhang, Qi.,Zhang, Jianjun.,Yuan, Ruyi.,Guan, Qiang.,...&Wang, Jin.(2017).Unified Selective Harmonic Elimination for Multilevel Converters.IEEE TRANSACTIONS ON POWER ELECTRONICS,32(2),1579-1590.
MLA Yang, Kehu,et al."Unified Selective Harmonic Elimination for Multilevel Converters".IEEE TRANSACTIONS ON POWER ELECTRONICS 32.2(2017):1579-1590.
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