Sliding mode controller applied to coupled inductor dual boost inverter

Fang, Yu; Cao, Songyin; Wheeler, Pat

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.

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

• Journal Article Type: Article
• Acceptance Date: Jun 27, 2019
• Publication Date: Nov 1, 2019
• Deposit Date: Jul 12, 2019
• Publicly Available Date: Jul 12, 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
• DOI: https://doi.org/10.6113/JPE.2019.19.6.1403
• Keywords: Coupled inductor, Micro inverter, Photovoltaic (PV) power generation, Sliding mode control
• Public URL: https://nottingham-repository.worktribe.com/output/2302418
• Publisher URL: https://jpels.org/digital-library/22254