Full-Order Terminal Sliding-Mode Control for Soft Open Point

Minghao Zhou, Hongyu Su, Haoyu Zhou, Likun Wang, Yi Liu and Haofan Yu
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Minghao Zhou: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150001, China
Hongyu Su: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150001, China
Haoyu Zhou: School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Likun Wang: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150001, China
Yi Liu: School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Haofan Yu: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150001, China

Energies, 2022, vol. 15, issue 14, 1-18

Abstract: In this paper, a full-order terminal sliding-mode control method is proposed for the rectifier side and the inverter side of the soft open point (SOP). The rectifier-side DC voltage control system consists of the voltage- and current-loops with controllers which are designed using full-order sliding-mode (FOSM) to enhance the dynamic performances and anti-disturbance. The integral type virtual control signal without chattering is designed to compensate for the unmatched uncertainties including external disturbances and some parameter perturbations. The full-order terminal sliding-mode (FOTSM) controller for the current-loop can force the current response to track its reference in finite time. The inverter side power control system is designed to regulate the power. The FOTSM controller for the power-loop ensures the power-tracking accuracy under a disturbed condition. Finally, the simulations demonstrate the effectiveness of the proposed controllers for the rectifier and inverter sides in the soft open point (SOP).

Keywords: soft open point (SOP); power distribution network; sliding-mode control (SMC); terminal sliding-mode; unmatched uncertainties (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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