Power Quality Improvement of PWM Rectifier-Inverter System Using Model Predictive Control for an AC Electric Drive Appli
The AC–DC–AC conversion system is extensively used in a variety of applications, such as power system, industry applications, and transportation systems. The back-to-back converter with adjustable DC-link provides a bi-directional power flow between the l
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Abstract The AC–DC–AC conversion system is extensively used in a variety of applications, such as power system, industry applications, and transportation systems. The back-to-back converter with adjustable DC-link provides a bi-directional power flow between the load and the grid. The grid-side-converter (GSC) can control independently active and reactive power. Moreover, it functions as an active power filter to compensate harmonics and provide a sinusoidal grid current. The Finite state model predictive control (FS-MPC) has been widely used in power electronics and electrical drives field due to its promising results. This technique incorporates the power converter model in the control design and does not need any modulation unit. In this work, the predictive model control will be applied to both back-to-back converter stages. Predictive power control and predictive torque control are applied respectively on the rectifier and the inverter which fed the motor. MPC evaluates the control variables in a cost-function to generate optimal switching states in a sampling period. This optimization reflects on power quality and harmonics elimination. The effectiveness of the presented algorithms is investigated by simulation using MATLAB/Simulink software. Keywords Back-to-back converter · PWM-rectifier · Induction motor · Direct power control · Model predictive control
1 Introduction The AC-DC-AC conversion system in electrical drives application uses a full-diode bridge for the grid side rectifying where the power transfer cannot be reversible. In addition, the diode-bridge causes high grid current distortion and thereby it reduces A. Ammar (B) Signals and Systems Laboratory (LSS), Institute of Electrical and Electronic Engineering, University of M’hamed BOUGARA of Boumerdes, Boumerdes, Algeria e-mail: [email protected] LGEB Laboratory, Electrical Engineering Department, Biskra University, Biskra, Algeria © Springer Nature Singapore Pte Ltd. 2021 S. Bououden et al. (eds.), Proceedings of the 4th International Conference on Electrical Engineering and Control Applications, Lecture Notes in Electrical Engineering 682, https://doi.org/10.1007/978-981-15-6403-1_29
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the power factor and the quality of the energy [1]. Recently, and due to breakthrough advancement in the power devices developments, the application of three-phase pulse width modulation (PWM) rectifier has been risen quickly [2]. The back-to-back converter is consisting of a PWM-rectifier (AC-DC) and an inverter a (DC-AC) with an intermediate DC-link. This converter is widely used in many applications such as electrical drives and renewable energy conversion systems. It offers plenty of advantages, such as: a bi-directional energy flow ability, a controllable DC-link voltage and reactive power and four-quadrant operation [3]. Several strategies have been proposed either for the rectifier power control or for the inverter. They can be classified into two groups, indirect methods with cascade current control like Field/Voltage Oriented
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