Investigating Electrical Drive Performance Employing Model Predictive Control and Active Disturbance Rejection Control Algorithms

Abstract

Many issues can degrade the electrical drive performance such as cross-coupling, time delay, external disturbances, and parameter variation. The Synchronous Reference Frame (SRF) PI Current Controller (CC) is the most popular control scheme for the motor drive current control due to its simplicity. However, the PI controller does not have an optimal dynamic response due to the reasonably low transient response of the integral parts. Furthermore, the tuning of the PI controller depends heavily on the machine's parameters. Recently, alternative control schemes such as Model Predictive Control (MPC) and Active Disturbance Rejection Control (ADRC) are studied due to their dynamic performance and disturbance rejection capability, respectively. This paper presents a comparative study between the conventional PI, ADRC, and MPC control schemes applied for Permanent Magnet Synchronous Motor (PMSM) taking into consideration the operational issues of electrical drives.

Complete decoupling compensation of three‐phase inverter with LCL filter in synchronous reference frame

“…However, the improvement of updating method would introduce additional noise and the corresponding compensations are still needed [11, 12]. What's more, because of the coordinate transformation, if the time‐delay can't be compensated completely, it would always cause current coupling in the SRF [13]. For this reason, another method is to introduce direct time delay compensation in SRF.…”