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Hassan Bevrani

Hassan Bevrani

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 55913436700
Faculty: Faculty of Engineering
Address: Dept. Of Electrical and Computer Eng, University of Kurdistan, Allameh Hamdi Blvd, Sanandaj PO Box 416, P. C: 66177-15175, Kurdistan, Iran
Phone: +98-87-33624001

Research

Title
Hybrid Model Predictive Control of DC-DC Boost Converters with Constant Power Load
Type
JournalPaper
Keywords
Control systems , Voltage control , Predictive models , Power system stability , Power electronics , Switches , Stability criteria
Year
2020
Journal IEEE Transactions on Energy Conversion
DOI
Researchers Qobad Shafiee ، Subham Sahoo ، Tomislav Dragicevic ، Hassan Bevrani ، Meysam Yaribeygi ، Zainab Karami

Abstract

This paper presents a hybrid model predictive controller to ensure dc microgrid stability and enhance the performance of dc-dc boost converters interfaced with constant power loads in a hybrid system. Hybrid systems are dynamic systems with both continuous current mode (CCM) and discontinuous current mode (DCM) states. In this regard, an automatic model, considering different modes of operation induced by semiconductor switches in dc-dc boost converters and highly non-linear nature of constant power loads is employed to design the proposed control approach. The nonlinear constant power loads connected directly to a dc-dc boost converter is utilized to define an optimal tracking control problem by minimizing a finite-prediction horizon cost function. The proposed controller, which is implemented in both continuous and discontinuous current modes, accounts for the regulation of output voltage within the predefined range. The effectiveness of the proposed hybrid model predictive controller is verified using a comparative evaluation with discrete-time averaged model predictive control (DTA-MPC) and the conventional PI control under experimental conditions. The results authenticate an improved dynamic performance, which can be applied to practical dc microgrids with constant power loads.