Design of LLC resonant converter with silicon carbide MOSFET switches and nonlinear adaptive sliding controller for brushless DC motor system

Authors

DOI:

https://doi.org/10.20998/2074-272X.2022.4.05

Keywords:

power conversion, brushless DC motor, silicon carbide MOSFET switches, LLC resonant converter, nonlinear adaptive sliding controller, voltage regulation harmonics suppression

Abstract

Introduction. The high voltage gain DC-DC converters are increasingly used in many power electronics application systems, due to their benefits of increased voltage output, reduced noise contents, uninterrupted power supply, and ensured system reliability. Most of the existing works are highly concentrated on developing the high voltage DC-DC converter and controller topologies for goal improving the steady state response of brushless DC motor driving system and also obtain the regulated voltage with increased power density and reduced harmonics, the LLC resonant DC-DC converter is implemented with the silicon carbide MOSFET switching devices Problem. Yet, it facing the major problems of increased switching loss, conduction loss, error outputs, time consumption, and reduced efficiency. Also the existing works are mainly concentrating on improving the voltage gain, regulation, and operating performance of the power system with reduced loss of factors by using the different types of converters and controlling techniques. The goal of this work is to obtain the improved voltage gain output with reduced loss factors and harmonic distortions. Method. Because, this type of converter has the ability to generate the high gain DC output voltage fed to the brushless DC motor with reduced harmonics and loss factors. Also, the nonlinear adaptive sliding controller is implemented to generate the controlling pulses for triggering the switching components properly. For this operation, the best gain parameters are selected based on the duty cycle, feedback DC voltage and current, and gain of silicon carbide MOSFET. By using this, the controlling signals are generated and given to the converter, which helps to control the brushless DC motor with steady state error. Practical value. The simulation results of the proposed LLC silicon carbide MOSFET incorporated with nonlinear adaptive sliding controller controlling scheme are validated and compared by using various evaluation indicators

Author Biographies

G. Merlin Suba, Dr. M.G.R Educational and Research Institute

Research Scholar, Department of Electrical and Electronics Engineering

M. Kumaresan, Dr. M.G.R Educational and Research Institute

Professor, Department of Electrical and Electronics Engineering

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Published

2022-07-08

How to Cite

Merlin Suba, G., & Kumaresan, M. (2022). Design of LLC resonant converter with silicon carbide MOSFET switches and nonlinear adaptive sliding controller for brushless DC motor system. Electrical Engineering & Electromechanics, (4), 34–43. https://doi.org/10.20998/2074-272X.2022.4.05

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Industrial Electronics