Next Article in Journal
Customer Perceived Risk Measurement with NLP Method in Electric Vehicles Consumption Market: Empirical Study from China
Previous Article in Journal
Development of a Self-Sufficient LoRaWAN Sensor Node with Flexible and Glass Dye-Sensitized Solar Cell Modules Harvesting Energy from Diffuse Low-Intensity Solar Radiation
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Energies
Volume 15
Issue 5
10.3390/en15051636
energies-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Application of an Improved STSMC Method to the Bidirectional DC–DC Converter in Photovoltaic DC Microgrid

by
Siyuan Liu
,
Xiaona Liu
,
Shaojie Jiang
,
Zengnan Zhao
,
Ning Wang
,
Xiaoyu Liang
,
Minghui Zhang
and
Lihua Wang
*
School of Electronic Information Engineering, Shandong University of Science and Technology, Qingdao 266000, China
*
Author to whom correspondence should be addressed.
Energies 2022, 15(5), 1636; https://doi.org/10.3390/en15051636
Submission received: 15 January 2022 / Revised: 10 February 2022 / Accepted: 15 February 2022 / Published: 22 February 2022
Browse Figures
Versions Notes

Abstract

In a photovoltaic DC microgrid, the intermittent power supply of the distributed generation and the fluctuation of the load power will cause the instability of the bus voltage. An improved super-twisting sliding mode control method based on the super-twisting algorithm is proposed to solve this problem. In this paper, a bidirectional half-bridge buck–boost converter was selected as the research topic. The proposed control method replaces the sign function with the saturation function to further mitigate the chattering effect. The stability of the proposed control method was proven to be finite-time convergent using the Lyapunov theory control. Compared with PI control, linear sliding mode control, and terminal sliding mode control, the proposed control method reduces the system overshoot by up to 33% and greatly improves the response speed; compared with the traditional super-twisting sliding mode control method, the system overshoot is reduced by 6.8%, and the response speed is increased by 38%. The experimental results show that the proposed control method can reduce the fluctuation range of the bus voltage, shorten the time of bus voltage stability, effectively stabilize the bus voltage of the photovoltaic DC microgrid, and maintain strong robustness.
Keywords: photovoltaic DC microgrid; bidirectional half-bridge buck–boost converter; super-twisting sliding mode control; robustness photovoltaic DC microgrid; bidirectional half-bridge buck–boost converter; super-twisting sliding mode control; robustness

Share and Cite

MDPI and ACS Style

Liu, S.; Liu, X.; Jiang, S.; Zhao, Z.; Wang, N.; Liang, X.; Zhang, M.; Wang, L. Application of an Improved STSMC Method to the Bidirectional DC–DC Converter in Photovoltaic DC Microgrid. Energies 2022, 15, 1636. https://doi.org/10.3390/en15051636

AMA Style

Liu S, Liu X, Jiang S, Zhao Z, Wang N, Liang X, Zhang M, Wang L. Application of an Improved STSMC Method to the Bidirectional DC–DC Converter in Photovoltaic DC Microgrid. Energies. 2022; 15(5):1636. https://doi.org/10.3390/en15051636

Chicago/Turabian Style

Liu, Siyuan, Xiaona Liu, Shaojie Jiang, Zengnan Zhao, Ning Wang, Xiaoyu Liang, Minghui Zhang, and Lihua Wang. 2022. "Application of an Improved STSMC Method to the Bidirectional DC–DC Converter in Photovoltaic DC Microgrid" Energies 15, no. 5: 1636. https://doi.org/10.3390/en15051636

APA Style

Liu, S., Liu, X., Jiang, S., Zhao, Z., Wang, N., Liang, X., Zhang, M., & Wang, L. (2022). Application of an Improved STSMC Method to the Bidirectional DC–DC Converter in Photovoltaic DC Microgrid. Energies, 15(5), 1636. https://doi.org/10.3390/en15051636

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop