Title: Modelling and simulation of three phase power factor correctors with fast dynamic response based on fixed PWM and bang-bang control techniques using DC-DC SEPIC converter modules

Authors: M.G. Umamaheswari; V. Sivasubramanian; S. Sam Swamya Vasanth; B. Lekshmi Sree; Veerapandiyan Veerasamy

Addresses: Department of Electrical and Electronics Engineering, Rajalakshmi Engineering College, Chennai, India ' Department of Electrical and Electronics Engineering, Rajalakshmi Engineering College, Chennai, India ' Department of Electrical and Electronics Engineering, Rajalakshmi Engineering College, Chennai, India ' Department of Electrical and Electronics Engineering, Rajalakshmi Engineering College, Chennai, India ' Center for Advanced Power and Energy Research (CAPER), Department of Electrical and Electronics Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), 43400 UPM Serdang, Selangor, Malaysia

Abstract: The main concerns of the power supply industry is to obtain a single stage converter with a low-cost for achieving power factor correction (PFC) complying with required harmonic standards and regulated output voltage simultaneously for three-phase applications. This paper presents the modelling and simulation of single stage three phase power factor correctors using DC-DC SEPIC converter modules based on cascade control strategy. It uses outer loop using proportional-integral (PI) controller to regulate the output voltage and three inner fixed PWM/bang-bang controllers to shape the source current. PI controller parameters are determined by using TYREUS-LUYBEN tuning method. Performance analysis has been made for the two proposed approaches by comparing the simulation results. Results reveal that the proposed scheme provides the power factor close to unity, low % total harmonic distortion (THD), regulated output voltage for load variations and effective set point tracking. Experimental results using fixed PWM technique is also presented.

Keywords: power factor correction; PFC; cascade control; fixed PWM control technique; bang-bang control; proportional integral control; pulse width modulation; PWM; switched mode power supply; SMPS; total harmonic distortion; THD.

DOI: 10.1504/IJPELEC.2021.114463

International Journal of Power Electronics, 2021 Vol.13 No.3, pp.300 - 324

Received: 08 Oct 2017
Accepted: 14 Sep 2018
Published online: 23 Apr 2021 *

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