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A Novel Nine-Level Inverter Employing One Voltage Source and Reduced Components as High-Frequency AC Power Source
Liu, Junfeng1; Wu, Jialei2; Zeng, Jun2; Guo, Huafang3
2017-04-01
Source PublicationIEEE TRANSACTIONS ON POWER ELECTRONICS
Volume32Issue:4Pages:2939-2947
AbstractIncreasing demands for power supplies have contributed to the population of high-frequency ac (HFAC) power distribution system (PDS), and in order to increase the power capacity, multilevel inverters (MLIs) frequently serving as the high-frequency (HF) source-stage have obtained a prominent development. Existing MLIs commonly use more than one voltage source or a great number of power devices to enlarge the level numbers, and HF modulation (HFM) methods are usually adopted to decrease the total harmonic distortion (THD). All of these have increased the complexity and decreased the efficiency for the conversion from dc to HF ac. In this paper, a nine-level inverter employing only one input source and fewer components is proposed for HFAC PDS. It makes full use of the conversion of series and parallel connections of one voltage source and two capacitors to realize nine output levels, thus lower THD can be obtained without HFM methods. The voltage stress on power devices is relatively relieved, which has broadened its range of applications as well. Moreover, the proposed nine-level inverter is equipped with the inherent self-voltage balancing ability, thus the modulation algorithm gets simplified. The circuit structure, modulation method, capacitor calculation, loss analysis, and performance comparisons are presented in this paper, and all the superior performances of the proposed nine-level inverter are verified by simulation and experimental prototypes with rated output power of 200 W. The accordance of theoretical analysis, simulation, and experimental results confirms the feasibility of proposed nine-level inverter.
SubtypeArticle
KeywordNine-level Inverter One Voltage Source Self-voltage Balancing Two Capacitors
WOS HeadingsScience & Technology ; Technology
DOI10.1109/TPEL.2016.2582206
WOS Subject ExtendedEngineering
WOS KeywordCASCADED MULTILEVEL INVERTER ; GRID-CONNECTED CONVERTER ; SWITCHED-CAPACITOR ; DISTRIBUTION-SYSTEM ; NUMBER ; TOPOLOGY ; PWM ; MODULATION
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(61573155) ; Guangdong Natural Science Foundation(2016A03031358) ; Guangdong Science and Technology Planning Project(2016A010102007) ; Science and Technology Program of Guangzhou(201607010209)
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000395480400040
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14043
Collection中国科学院广州能源研究所
Affiliation1.South China Univ Technol, Sch Automat Sci & Engn, Guangzhou 510640, Peoples R China
2.South China Univ Technol, New Energy Res Ctr, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
Recommended Citation
GB/T 7714
Liu, Junfeng,Wu, Jialei,Zeng, Jun,et al. A Novel Nine-Level Inverter Employing One Voltage Source and Reduced Components as High-Frequency AC Power Source[J]. IEEE TRANSACTIONS ON POWER ELECTRONICS,2017,32(4):2939-2947.
APA Liu, Junfeng,Wu, Jialei,Zeng, Jun,&Guo, Huafang.(2017).A Novel Nine-Level Inverter Employing One Voltage Source and Reduced Components as High-Frequency AC Power Source.IEEE TRANSACTIONS ON POWER ELECTRONICS,32(4),2939-2947.
MLA Liu, Junfeng,et al."A Novel Nine-Level Inverter Employing One Voltage Source and Reduced Components as High-Frequency AC Power Source".IEEE TRANSACTIONS ON POWER ELECTRONICS 32.4(2017):2939-2947.
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