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A Quasi-Resonant Switched-Capacitor Multilevel Inverter With Self-Voltage Balancing for Single-Phase High-Frequency AC Microgrids
Zeng, Jun1; Wu, Jialei1; Liu, Junfeng2; Guo, Huafang3
2017-10-01
发表期刊IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
卷号13期号:5页码:2669-2679
摘要In this paper, a quasi-resonant switched-capacitor (QRSC) multilevel inverter (MLI) is proposed with self-voltage balancing for single-phase high-frequency ac (HFAC) microgrids. It is composed of a QRSC circuit (QRSCC) in the frontend and an H-bridge circuit in the backend. The input voltage is divided averagely by the series-connected capacitors in QRSCC, and any voltage level can be obtained by increasing the capacitor number. The different operational mechanism and the resulting different application make up for the deficiency of the existing switched-capacitor topologies. The capacitors are connected in parallel partially or wholly when discharging to the load, thus the self-voltage balancing is realized without any high-frequency balancing algorithm. In other words, the proposed QRSC MLI is especially adapted for HFAC fields, where fundamental frequency modulation is preferred when considering the switching frequency and the resulting loss. The quasi-resonance technique is utilized to suppress the current spikes that emerge from the instantaneous parallel connection of the series-connected capacitors and the input source, decreasing the capacitance, increasing their lifetimes, and reducing the electromagnetic interference, simultaneously. The circuit analysis, power loss analysis, and comparisons with typical switched-capacitor topologies are presented. To evaluate the superior performances, a nine-level prototype is designed and implemented in both simulation and experiment, whose results confirm the feasibility of the proposed QRSC MLI.
文章类型Article
关键词High-frequency Ac (hfAc) Microgrids Multilevel Inverter (Mli) Quasi-resonant Switched-capacitor (Qrsc) Self-voltage Balancing
WOS标题词Science & Technology ; Technology
资助者National 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) ; National 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)
DOI10.1109/TII.2017.2672733
研究领域[WOS]Automation & Control Systems ; Computer Science ; Engineering
关键词[WOS]REDUCED NUMBER ; CONVERTERS ; SYSTEM ; COMPONENTS
收录类别SCI
语种英语
资助者National 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) ; National 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类目Automation & Control Systems ; Computer Science, Interdisciplinary Applications ; Engineering, Industrial
WOS记录号WOS:000412361900055
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/16304
专题中国科学院广州能源研究所
作者单位1.South China Univ Technol, New Energy Res Ctr, Guangzhou 510640, Guangdong, Peoples R China
2.South China Univ Technol, Sch Automat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式
GB/T 7714
Zeng, Jun,Wu, Jialei,Liu, Junfeng,et al. A Quasi-Resonant Switched-Capacitor Multilevel Inverter With Self-Voltage Balancing for Single-Phase High-Frequency AC Microgrids[J]. IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS,2017,13(5):2669-2679.
APA Zeng, Jun,Wu, Jialei,Liu, Junfeng,&Guo, Huafang.(2017).A Quasi-Resonant Switched-Capacitor Multilevel Inverter With Self-Voltage Balancing for Single-Phase High-Frequency AC Microgrids.IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS,13(5),2669-2679.
MLA Zeng, Jun,et al."A Quasi-Resonant Switched-Capacitor Multilevel Inverter With Self-Voltage Balancing for Single-Phase High-Frequency AC Microgrids".IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS 13.5(2017):2669-2679.
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