NDLI: Exact feedback linearisation optimal control for single-inductor dual-output boost converter

Content Provider	IET Digital Library
Author	Wu, Jiarong Lu, Yimin
Abstract	To minimise the cross-regulation of single-inductor multiple-output switching converters, an exact feedback linearisation (EFL) optimal control strategy is proposed in this study. Using the single-inductor dual-output (SIDO) boost converter as an example, an affine non-linear system based on the non-linearity of the system is established, the mechanism of the low-voltage output of the SIDO boost converter is analysed in detail. Then the qualification of the established model for EFL is theoretically confirmed. Meanwhile, the corresponding output functions for the linearisation of the non-linear system in Brunovsky normal form are constructed, and the theoretical grounds supporting the ability of the output functions to track the reference outputs are further investigated. In addition, the optimal control technology is applied to EFL control to obtain the non-linear control law of the system. Furthermore, the design method of optimal feedback coefficients is given, and a SIDO boost converter system with low-voltage output is designed and realised. The simulation results show that this control strategy provides a better regulation performance than common-mode and differential-mode voltage control strategies and that it can effectively minimise the cross-regulation of the system. Finally, the experimental results further verify the correctness and effectiveness of the proposed control strategy.
Starting Page	2293
Ending Page	2301
Page Count	9
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 11, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.1160
Journal	IET Power Electronics
Publisher Date	2020-05-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Affine Nonlinear System Brunovsky Normal Form Common-mode Voltage Control Strategy Control of Electric Power System Control System Analysis Control System Synthesis Cross-regulation Minimization Design Method Differential-mode Voltage Control Strategy EFL Control Exact Feedback Linearisation Optimal Control Strategy Feedback Linearisation Technique Low-voltage Output Mechanism Multiple-output Switching Converter Nonlinear Control Law Nonlinear Control System Optimal Control Optimal Control Technology Optimal Feedback Coefficient Power Converter Power Supplies to Apparatus Reference Output Regulation Performance SIDO Boost Converter System Single-inductor Dual-output Boost Switching Converter Switching Converter Synthesis Method Voltage Control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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