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Sliding mode controller applied to coupled inductor dual boost inverter

Fang, Yu; Cao, Songyin; Wheeler, Pat

Authors

Yu Fang

Songyin Cao

Pat Wheeler



Abstract

A coupled inductor-dual boost-inverter (CIDBI) with differential structure has been presented to be applied to micro-inverter photovoltaic module system because of its turn ratio of high-voltage level. However, it is hard for CIDBI converter with conventional PI regulator to be designed stable and achieve good dynamic performance, given the fact that it is a high order system. In view of this situation, a sliding mode control (SMC) strategy is introduced in this paper, and two different sliding mode controllers (SMCs) are proposed and adopted in the left and right side of the two Boost sub-circuits respectively to implement corresponding regulation of voltage and current. The schemes of the SMCs have been elaborated in this paper including the establishment of the system variable structure model, the selection of the sliding surface, the determination of the control law, and the presentation of the reaching conditions and sliding domain. Finally, the mathematic analysis and the proposed SMC are verified by the experimental results.

Journal Article Type Article
Publication Date Nov 1, 2019
Journal Journal of Power Electronics
Print ISSN 1598-2092
Electronic ISSN 2093-4718
Publisher Korean Institute of Power Electronics
Peer Reviewed Peer Reviewed
Volume 19
Issue 6
Pages 1403-1412
APA6 Citation Fang, Y., Cao, S., & Wheeler, P. (2019). Sliding mode controller applied to coupled inductor dual boost inverter. Journal of Power Electronics, 19(6), 1403-1412. https://doi.org/10.6113/JPE.2019.19.6.1403
DOI https://doi.org/10.6113/JPE.2019.19.6.1403
Keywords Coupled inductor, Micro inverter, Photovoltaic (PV) power generation, Sliding mode control
Publisher URL https://jpels.org/digital-library/22254

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