Adaptive Energy-Based Control for Buck Converter With a Class of Nonlinear Loads

Authors

Wei He, Mohammad Masoud Namazi, Josep M. Guerrero

Abstract

In this brief, the problem of voltage regulation of buck converter with a class of nonlinear loads is addressed by using an adaptive energy-based controller. It is noted that the existing results mainly cope with converters feeding one or several nonlinear loads. Other types of loads do exist in power systems. Therefore, based on the passivity theory and a coordinate transformation, this brief proposes a new energy-based controller to stabilize buck converter with a class of nonlinear loads. It is ensured that the closed-loop system is a port-Hamiltonian system with exponential convergence. Then, the estimated terms generated by a designed disturbance observer are forwarded to energy-based controller to reduce the influence of the time-varying disturbances on the system. The experiment test is conducted by means of the setup of buck converter with a constant power load. The simulation and experimental results verify the effectiveness of the designed controller.

Citation

• Journal: IEEE Transactions on Circuits and Systems II: Express Briefs
• Year: 2022
• Volume: 69
• Issue: 12
• Pages: 4869–4873
• Publisher: Institute of Electrical and Electronics Engineers (IEEE)
• DOI: 10.1109/tcsii.2022.3176258

BibTeX

@article{He_2022,
  title={{Adaptive Energy-Based Control for Buck Converter With a Class of Nonlinear Loads}},
  volume={69},
  ISSN={1558-3791},
  DOI={10.1109/tcsii.2022.3176258},
  number={12},
  journal={IEEE Transactions on Circuits and Systems II: Express Briefs},
  publisher={Institute of Electrical and Electronics Engineers (IEEE)},
  author={He, Wei and Namazi, Mohammad Masoud and Guerrero, Josep M.},
  year={2022},
  pages={4869--4873}
}

Download the bib file

References

• Nahata, P., Soloperto, R., Tucci, M., Martinelli, A. & Ferrari-Trecate, G. A passivity-based approach to voltage stabilization in DC microgrids with ZIP loads. Automatica vol. 113 108770 (2020) – 10.1016/j.automatica.2019.108770
• cucuzzella, Voltage control of DC networks: Robustness for unknown ZIP-loads. arXiv 1907 09973 (2019)
• Wang, X., Wang, Y., Shi, D., Wang, J. & Wang, Z. Two-Stage WECC Composite Load Modeling: A Double Deep Q-Learning Networks Approach. IEEE Transactions on Smart Grid vol. 11 4331–4344 (2020) – 10.1109/tsg.2020.2988171
• Cui, M. et al. Deep Learning-Based Time-Varying Parameter Identification for System-Wide Load Modeling. IEEE Transactions on Smart Grid vol. 10 6102–6114 (2019) – 10.1109/tsg.2019.2896493
• Ortega, R. & Romero, J. G. Robust integral control of port-Hamiltonian systems: The case of non-passive outputs with unmatched disturbances. Systems & Control Letters vol. 61 11–17 (2012) – 10.1016/j.sysconle.2011.09.015
• Donaire, A. & Junco, S. On the addition of integral action to port-controlled Hamiltonian systems. Automatica vol. 45 1910–1916 (2009) – 10.1016/j.automatica.2009.04.006
• hart, Power Electronics (2011)
• Yang, J., Wu, B., Li, S. & Yu, X. Design and Qualitative Robustness Analysis of an DOBC Approach for DC-DC Buck Converters With Unmatched Circuit Parameter Perturbations. IEEE Transactions on Circuits and Systems I: Regular Papers vol. 63 551–560 (2016) – 10.1109/tcsi.2016.2529238
• li, Disturbance Observer-based Control Methods and Applications (2014)
• Xu, Q., Zhang, C., Wen, C. & Wang, P. A Novel Composite Nonlinear Controller for Stabilization of Constant Power Load in DC Microgrid. IEEE Transactions on Smart Grid vol. 10 752–761 (2019) – 10.1109/tsg.2017.2751755
• He, W. & Ortega, R. Design and Implementation of Adaptive Energy Shaping Control for DC–DC Converters With Constant Power Loads. IEEE Transactions on Industrial Informatics vol. 16 5053–5064 (2020) – 10.1109/tii.2019.2953694
• Hassan, M. A. et al. Adaptive Passivity-Based Control of dc–dc Buck Power Converter With Constant Power Load in DC Microgrid Systems. IEEE Journal of Emerging and Selected Topics in Power Electronics vol. 7 2029–2040 (2019) – 10.1109/jestpe.2018.2874449
• Xu, Q. et al. Review on Advanced Control Technologies for Bidirectional DC/DC Converters in DC Microgrids. IEEE Journal of Emerging and Selected Topics in Power Electronics vol. 9 1205–1221 (2021) – 10.1109/jestpe.2020.2978064
• Singh, S., Gautam, A. R. & Fulwani, D. Constant power loads and their effects in DC distributed power systems: A review. Renewable and Sustainable Energy Reviews vol. 72 407–421 (2017) – 10.1016/j.rser.2017.01.027
• Arora, S., Balsara, P. & Bhatia, D. Input–Output Linearization of a Boost Converter With Mixed Load (Constant Voltage Load and Constant Power Load). IEEE Transactions on Power Electronics vol. 34 815–825 (2019) – 10.1109/tpel.2018.2813324
• Hernandez-Gomez, M., Ortega, R., Lamnabhi-Lagarrigue, F. & Escobar, G. Adaptive PI Stabilization of Switched Power Converters. IEEE Transactions on Control Systems Technology vol. 18 688–698 (2010) – 10.1109/tcst.2009.2023669
• Han, S., Jiang, H., Ma, J., Wu, X. & Ren, T. Ultrahigh Step-Up Coupled-Inductor DC-DC Converter With Soft-Switching for Driving Piezoelectric Actuators. IEEE Transactions on Circuits and Systems II: Express Briefs vol. 68 2902–2906 (2021) – 10.1109/tcsii.2021.3072206
• Pandey, S. K., Patil, S. L., Chaskar, U. M. & Phadke, S. B. State and Disturbance Observer-Based Integral Sliding Mode Controlled Boost DC–DC Converters. IEEE Transactions on Circuits and Systems II: Express Briefs vol. 66 1567–1571 (2019) – 10.1109/tcsii.2018.2888570
• Bazrafshan, M. & Gatsis, N. Convergence of the Z-Bus Method for Three-Phase Distribution Load-Flow with ZIP Loads. IEEE Transactions on Power Systems vol. 33 153–165 (2018) – 10.1109/tpwrs.2017.2703835
• sepulchre, Constructive Nonlinear Control (2012)
• Ferguson, J., Cucuzzella, M. & Scherpen, J. M. A. Exponential Stability and Local ISS for DC Networks. IEEE Control Systems Letters vol. 5 893–898 (2021) – 10.1109/lcsys.2020.3007222