Sampled-Data Control With Adjustable Switching Frequency for DC–DC Converters

In this paper, a novel sampled-data control approach is proposed for dc–dc converters. The dc–dc power electronic converter is modeled as a sampled-data switched affine system according to the status of the power switch. A novel switching control algorithm is synthesized by using the switched Lyapunov theory. The proposed approach is able to not only drive the output to a prescribed set point from any initial condition, but also track a varying reference signal, and the switching frequency can be adjusted online with the guaranteed stability. In addition, with this approach, continuous conduction mode and discontinuous conduction mode operations can be treated in a unified way. The effectiveness and merits of the proposed method are illustrated by experiments on a laboratory prototype.

[1]  P. Midya,et al.  Buck or boost tracking power converter , 2004, IEEE Power Electronics Letters.

[2]  D. Mitchell,et al.  Designing Stable Control Loops , 2001 .

[3]  Suleiman M. Sharkh,et al.  Prediction-based sampled-data control for DC-DC buck converters , 2015, 2015 First Workshop on Smart Grid and Renewable Energy (SGRE).

[4]  O. Garcia,et al.  Multilevel Power Supply for High Efficiency RF Amplifiers , 2010, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[5]  Slobodan Cuk,et al.  A general unified approach to modelling switching-converter power stages , 1976, 1970 IEEE Power Electronics Specialists Conference.

[6]  Shihua Li,et al.  Robust Control for PWM-Based DC–DC Buck Power Converters With Uncertainty Via Sampled-Data Output Feedback , 2015, IEEE Transactions on Power Electronics.

[7]  Fujio Kurokawa,et al.  A novel timing control method for neural network based digitally controlled DC-DC converter , 2013, 2013 15th European Conference on Power Electronics and Applications (EPE).

[8]  Zhang Bo,et al.  A novel large-signal stability analysis approach based on semi-tensor product of matrices with Lyapunov stability theorem for DC-DC converters , 2016 .

[9]  Dragan Maksimovic,et al.  Second-Order Sliding-Mode Controlled Synchronous Buck DC–DC Converter , 2016, IEEE Transactions on Power Electronics.

[10]  D. C. Hamill,et al.  Modeling of chaotic DC-DC converters by iterated nonlinear mappings , 1992 .

[11]  Aleksandar Prodic,et al.  High-frequency digital PWM controller IC for DC-DC converters , 2003 .

[12]  Robert W. Erickson,et al.  DC-DC converter design for battery-operated systems , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[13]  Stéphane Bibian,et al.  High performance predictive dead-beat digital controller for DC power supplies , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[14]  B. Paden,et al.  Lyapunov stability theory of nonsmooth systems , 1993, Proceedings of 32nd IEEE Conference on Decision and Control.

[15]  Tobias Geyer,et al.  Direct Voltage Control of DC–DC Boost Converters Using Enumeration-Based Model Predictive Control , 2014, IEEE Transactions on Power Electronics.

[16]  P. Melba Mary,et al.  Improved dynamic response of isolated full bridge DC to DC converter using BATA optimization tuned fuzzy sliding mode controller for solar applications , 2017 .

[17]  Shihua Li,et al.  Extended state observer-based sliding mode control for PWM-based DC–DC buck power converter systems with mismatched disturbances , 2015 .

[18]  R. Orsagh,et al.  Prognostic health management for avionics system power supplies , 2005, 2005 IEEE Aerospace Conference.

[19]  Mario Huemer,et al.  Modeling, Control, and Implementation of DC–DC Converters for Variable Frequency Operation , 2014, IEEE Transactions on Power Electronics.

[20]  O. Garcia,et al.  An overview of fast DC-DC converters for envelope amplifier in RF transmitters , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[21]  Alireza Khaligh,et al.  Variable-Switching-Frequency State-Feedback Control of a Phase-Shifted Full-Bridge DC/DC Converter , 2017, IEEE Transactions on Power Electronics.

[22]  Robert W. Erickson,et al.  High Efficiency DC-DC Converters for Battery- Operated Systems with Energy Management , 1999 .

[23]  Aleksej F. Filippov,et al.  Differential Equations with Discontinuous Righthand Sides , 1988, Mathematics and Its Applications.

[24]  Paolo Mattavelli,et al.  Digital control of high-frequency switched-mode power converters , 2015 .

[25]  C.K. Tse,et al.  Adaptive feedforward and feedback control schemes for sliding mode controlled power converters , 2006, IEEE Transactions on Power Electronics.

[26]  Jean-Philippe Martin,et al.  A Lyapunov Function for Switching Command of a DC–DC Power Converter With an LC Input Filter , 2017, IEEE Transactions on Industry Applications.

[27]  R. Krishnan,et al.  Permanent Magnet Synchronous and Brushless DC Motor Drives , 2009 .

[28]  Ivo Barbi,et al.  High Voltage Power Supply Using a T-Type Parallel Resonant DC–DC Converter , 2018, IEEE Transactions on Industry Applications.

[29]  Xinbo Ruan,et al.  Optimized Design of the Multilevel Converter in Series-Form Switch-Linear Hybrid Envelope-Tracking Power Supply , 2016, IEEE Transactions on Industrial Electronics.

[30]  Grace S. Deaecto,et al.  Switched affine systems control design with application to DCߝDC converters , 2010 .

[31]  D.D.-C. Lu,et al.  Photovoltaic-Battery-Powered DC Bus System for Common Portable Electronic Devices , 2008, IEEE Transactions on Power Electronics.