Research on a New Adaptive Integral Sliding Mode Controller Based on a Small BLDC

Abstract

A new adaptive saturation Integral Sliding Mode Controller (ADSA-ISMC) is presented to solve the speed fluctuation problem caused by a small brushless DC motor (S-BLDC) under variable load. First, according to the characteristics of S-BLDC and Kalman filter, a Kalman-based S-BLDC load disturbance observer is established, and an adaptive integrated sliding mode controller (AD-ISMC) is constructed based on the motor load obtained by the observer. Then, we introduce the saturation function into the input error link of the traditional integral sliding mode function, to propose a new ADSA-ISMC to improve the windup phenomenon produced by the integral sliding mode controller and prove the stability and convergence of the controller by the Lyapunov method. Finally, the experimental results show that the Kalman load disturbance observer can observe the motor load disturbance well. In addition, when a load of S-BLDC changes, many speed control performance indexes of ADSA-ISMC are significantly better than SMC and AD-ISMC. Theoretical analysis and experimental results show that the ADSA-ISMC proposed in this paper shows excellent control performance in S-BLDC speed control.

Sensorless BLDC motor Sliding Mode Control for Disturbance Rejection on Hand Held Motor Drive

“…The following Tab. (5) shows the performance improvement of SMC controller comparing the settling time, overshoot percentage for the step input response, as well as the disturbance rejection's recovery time and maximum disturbance. It is clear that SMC controller outperform both PI controllers.…”

“…The BLDC motor under control is inside a hacked commercial hand held drill from Milwaukee Tool M18-CPD, which is annotated in Fig. (5). The whole system setup that realize the SMC controller is illustrate in Fig.…”

“…For example, a control observers are often considered to help estimate rotor state for BLDC motors [4], and it uses the back-EMF to provide the high order sliding mode observer to estimate the rotational speed of the motor. Alternatively, in another case, an adaptive saturation integral SMC controller was developed to deal with the speed fluctuation for small BLDC motors [5], and here a Kalman filter is used to design a torque observer for its SMC control.…”

Регулятор Вихідної Напруги Активного Випрямляча На Основі Ковзного Режиму

“…дe Sa -сигнaл кeрувaння ключaми aктивнoгo випрямлячa VT1 i VT2; Sb -сигнaл кeрувaння ключaми aктивнoгo випрямлячa VT3 i VT4; Sc -сигнaл кeрувaння ключaми aктивнoгo випрямлячa VT5 i VT6. Дифeрeнцiальнe рiвняння, щo визнaчaє кoвзнe рeгулювaння, мaє вигляд [31] ( ) ( ) ( )…”

Overview of Sliding Mode Control Technology for Permanent Magnet Synchronous Motor System

“…It is usually applied to the speed outer loop and sliding mode observer (SMO) in sensorless control systems [50][51][52][53][54]. In addition, SMC has demonstrated successfully applied in various fields, such as induction motors [55][56][57][58], switched reluctance motors [59][60][61][62], and brushless DC motors [63][64][65], etc., under its remarkable features of high precision and ease of use. Improving the control performance of PMSM requires not only optimizing the motor design [66], but also improving the control algorithm [67][68][69].…”