Active Disturbance Rejection Control for a Five-Level Cascaded H-Bridge Inverter Fed Induction Motor Sensorless Field-Oriented

Abstract

In this paper, a robust vector control sensorless based on three Active Disturbance Rejection Controllers (ADRC) for an induction motor fed by a five-level cascaded H-bridge was developed. The estimation of rotor position is achieved using a Luenberger estimator. The proposed model considers the disturbances and the inaccuracies of the system and compensates them using the extended state observer of ADRC. Moreover, a five-level cascaded H-bridge inverter is the best topology to minimize the torque ripples and to improve the current output of IMunder control. The suggested control system was simulated under different conditions using MATLAB-Simulink. The results demonstrate the effectiveness and the robustness of the proposed system against disturbances such as variations of parameters and load torque.

ADRC and IFOC Control of a Sensorless Induction Motor Driven by a Multilevel Converter Using SVM Approach and PV Generators

“…Compared to the traditional inverters, the use of MLIs in power circuits has many benefits, such as the reduction of THD, the reduction of stress across static switches, the reduction of power losses and filter volume, and the improvement of power factor with the increase of the voltage level [18]. There are generally three conventional categories of MLIs; the CHBMLI is the most commonly operated in industrial systems because of its high reliability, modularity, high-voltage capability, and power [3]. FLIs offer better performance than three-level and two-level inverters.…”

“…It is essential to note that the harmonic distortion in the current primarily stems from the characteristics of the inverter used in the system. In this context, the choice of inverter plays a crucial role in reducing current harmonics [3].…”

“…To overcome these limitations, researchers have developed a robust control system called the active disturbance rejection controller (ADRC). This controller was first suggested in 1998 by Han [13] and has since been further developed by many other researchers [3,14]. ADRC allows you to reduce output noise and solve problems arising from parameter uncertainty and problems.…”