Torque Ripple Suppression of Brushless DC Motor Drive System Based on Improved Harmonic Injection Active Disturbance Rejection Control

Abstract

The positioning accuracy and speed stability of the brushless DC motor (BLDC motor), as the drive element of the optomechanically scanned system (OMSS), are closely interrelated to the final imaging quality of the system. Active disturbance rejection control (ADRC) with strong anti-interference ability, fast response and good robustness is one of the extensively used control strategies. However, the performance of ADRC working in a complicated environment will be limited due to the controller structure, parameter tuning and the influence of multi-source nonlinear disturbance. Therefore, an improved ADRC method is proposed, which can switch between ‘point-to-point control mode’ and ‘stable speed control mode’ according to the system requirements. To further suppress the torque ripple and improve the control performance of the system, an improved harmonic injection scheme is added, and the parameters of improved ADRC are tuned by a slime mould algorithm based on a Levy flight operator (LF-SMA). The stability of the proposed ADRC is proved by Lyapunov stability theory. The experimental results show that the proposed control scheme could be available to reduce the torque ripple of the system.

Slime Mould Algorithm: A Comprehensive Survey of Its Variants and Applications

“…It has powerful anti-interference capabilities, a quick reaction, and excellent resilience. The parameters of an upgraded ADRC are adjusted using an SMA based on a Levy flight operator (LF-SMA) [ 60 ]. The ADRC that has been proposed is stable, according to the Lyapunov stability theory.…”

Mathematical Modelling and Torque Ripple Waning in BLDC Motor Using Outgoing-Phase Current Discharge Hysteresis Controlled ANFIS Controller

“…Due to limited resolution, misalignment, electrical noise, and physical vibration, both phase advance and commutation pulse controls need the employment of a sequencing algorithm based on a Hall effect sensor signal, which has poor precision. [29][30][31].…”

“…e roots of torque ripple in the BLDCM in the speed closed-loop state were investigated [30], and a novel PWM-MPC method was suggested that computed the duty cycle of the power switches during the commutation period using the predictive model, but the proposed method worked well only at lower or higher speed ranges only. Because of its superior performance in positioning and torque ripple reduction, field oriented control (FOC) is used in BLDC motor drive systems [31]. However, effective performance necessitates precise control system state monitoring, which is frequently attributed to superior sensors.…”

“…A novel harmonic injection scheme is proposed, which effectively reduces the torque ripple and improves the speed stability. [31] A realistic method for compensating for specific torque harmonics is proposed by identifying the prominent torque ripple components (cogging torque and flux linkage ripple torque) and tuning the correction algorithm using a cuckoo search algorithm [32]. As the best criterion, the speed variation index is utilized in minimizing torque ripple in PMSM drive-by cuckoo search algorithm article.…”

Research on the Control Method of a Brushless DC Motor Based on Second-Order Active Disturbance Rejection Control

“…The approach in [26] discussed the use of an enhanced self-immunity controller to reduce torque pulsation in BLDC. The approach in [27] details the implementation of ADRC in a flywheel storage system to improve its immunity and dynamic characteristics.…”