Journal of Electrical and Electronic Engineering
Volume 5, Issue 6, December 2017, Pages: 228-234
Received: Dec. 27, 2017;
Published: Dec. 28, 2017
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Jiachuan You, College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou, China; Institute of Electrical Engineering, University of Chinese Academy of Sciences, Beijing, China
Qian Guo, College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou, China
Hui Cai, College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou, China
Based on the existing AC-AC switched-capacitor (SC) converter, this paper demonstrates a new cascaded AC-AC converter circuit topology with a ratio of 1/2n, which only consists of power switches and capacitors. The converter consists of multi-stage converters and the pre-and post-stage circuits are independent with each other. The principle of the topology and the formula of related parameters, including equivalent resistance, equivalent capacitance and switching loss, are deduced with the port network theory, thus the equivalent circuit is gained in this paper. After the theoretical analysis, simulation models and experimental prototype were established to validate the correctness of the circuit topology. Both simulation and experimental results have verified the effectiveness of the circuit topology and the correctness of the theoretical derivation.
A Cascaded Switched-capacitor AC-AC Converter with a Ratio of 1/2n, Journal of Electrical and Electronic Engineering.
Vol. 5, No. 6,
2017, pp. 228-234.
Seeman M D, Sanders S R. Analysis and optimization of switched-capacitor DC–DC converters [J]. IEEE Transactions on Power Electronics, 2008, 23(2): 841-851.
Ioinovici A. Switched-capacitor power electronics circuits [J]. IEEE Transactions on Circuit Systems, 2001, 1(3): 37-42.
Makowski M S, Maksimovic D. Performance limits of switched-capacitor DC-DC converters [C], 1995, 02: 1215-1221.
Y. Hinago and H. Koizumi, A Switched-Capacitor inverter using series/parallel conversion with inductive load, Industrial Electronics, 2012, 59: 878-887.
Lazzarin T B, Andersen R L, Martins G B et al. A 600W Switched-Capacitor AC–AC Converter for 220V/110V Applications [J]. IEEE Transactions on Power Electronics, 2012, 27: 4821-4826.
Andersen R L, Lazzarin T B, Barbi I. A 1kW Step-up/Step-down Switched-Capacitor AC-AC Converter [J]. IEEE Transactions on Power Electronics, 2013, 28(7): 3329-3340.
T. B. Lazzarin, M. P. Moccelini and I. Barbi, Split-phase switched-capacitor AC-AC converter, Power Electronics, 2015, 8(6): 918-928.
T. B. Lazzarin, M. P. Moccelini and I. Barbi, Direct Buck-Type AC/AC Converter Based On Switched-Capacitor, in COBEP, 2013, 230-235.
S. Xiong, et al., A family of exponential step-down switched-capacitor converters and their applications in two-stage converters, IEEE. Trans. Power Electron, pp. 1870-1880, Apr. 2014.
M. Uno and K. Tanaka, Unregulated interface converter based on cascaded switched capacitor converters for supercapacitors in alternative battery applications IEEE PEDS, pp. 579-586, 2011.
Kimball J W, Krein P T. Analysis and Design of Switched Capacitor Converters [A]. Applied Power Electronics Conference and Exposition [C], 2005, 3: 1473-1477.
Kimball J W, Krein P T, Cahill K R. Modeling of Capacitor Impedance in Switching Converters [J]. IEEE Power Electronics Letters, 2005, 3: 136-140.
S. Ben-Yaakov, and M. Evzelman, Generic and unified model of switched capacitor converters, Proc. of IEEE Energy Conversion Congress and Exposition (ECCE) 2009, S9-1b, pp. 3501-3508, Sep. 2009.