Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 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 | |
| Source Publication | IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
 |
| Volume | 13Issue:5Pages:2669-2679 |
| Abstract | 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. |
| Subtype | Article |
| Keyword | High-frequency Ac (hfAc) Microgrids Multilevel Inverter (Mli) Quasi-resonant Switched-capacitor (Qrsc) Self-voltage Balancing |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1109/TII.2017.2672733 |
| WOS Subject Extended | Automation & Control Systems ; Computer Science ; Engineering |
| WOS Keyword | REDUCED NUMBER ; CONVERTERS ; SYSTEM ; COMPONENTS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Organization | 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 Subject | Automation & Control Systems ; Computer Science, Interdisciplinary Applications ; Engineering, Industrial |
| WOS ID | WOS:000412361900055 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/16304 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| Recommended Citation 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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