Sliding mode speed control for brushless DC motor based on sliding mode torque observer

Yunbin, Shao; Yang, Rongrong; Guo, Jianwen; Fu, Yongling

doi:10.1109/icinfa.2015.7279700

Cited by 23 publications

(14 citation statements)

References 1 publication

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“…For BLDC motor, Low ripple torque and low noise operation can be achieved when their phase currents have quasi-square waveform [7,8]. Under the normal operating condition, the currents of the motor meet the following equation [6,9]:…”

Section: Analysis Of Three-phase 4-switch Invertermentioning

confidence: 99%

“…SMC is a variable structure control process, where the control system switches from one continuous structure to another depending on the status of the system. Design of sliding mode controller involves two tasks [6,10,11]:…”

Section: A Sliding-mode Speed Controllermentioning

confidence: 99%

“…The speed controller is designed to minimize the speed error, the output of this controller is considered as a reference current, which is designated as u. The motion equation of the motor can, then, be reformed as [6]:…”

Section: A Sliding-mode Speed Controllermentioning

confidence: 99%

“…al. (2015) [6] Introduced new dual loop control strategy for conventional 6-switch BLDC motor drive in which the current hysteresis control is adopted for the current loop, and the speed loop control is constructed based on sliding mode controller (SMC) and sliding mode observer (SMO), this control strategy shows obvious advantages in low overshoot level, fast speed response and adaptability to load variations.…”

Section: Introductionmentioning

confidence: 99%

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Design of Control System for 4-Switch BLDC Motor Based on Sliding-Mode and Hysteresis Controllers

2019

IJCCCE

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This paper presents a design of a complete dual-loop controller for 4-switch brushless dc motor. In low power, low-cost applications, the 4-switch inverter topology is a felicitous alternative of the ordinary 6-switch inverter. The controller of the 4-switch BLDC motor has to be uncomplicated and can be implemented without the use of expensive hardware to avoid increasing the overall cost of the drive system. Furthermore, the control must be able to deal with the known problems of the 4-switch drive which are speed limitation and high ripple torque. The proposed controller comprises sliding mode speed control and direct current hysteresis control. To investigate the performance of the proposed design, the system is modeled by using Matlab/Simulink, the results are obtained for different working conditions. The propitious results certify the applicability of the proposed controller in low-cost 4-switch BLDC motor drive systems.

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Section: Analysis Of Three-phase 4-switch Invertermentioning

confidence: 99%

Section: A Sliding-mode Speed Controllermentioning

confidence: 99%

Section: A Sliding-mode Speed Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design of Control System for 4-Switch BLDC Motor Based on Sliding-Mode and Hysteresis Controllers

2019

IJCCCE

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“…A second order SMC with anti-windup for BLDC motor is proposed in [18] in which the speed control is based on the super twisting algorithm based on the dq field oriented frame model. A dual loop control strategy implemented in [19] in which a SMC for speed control and a SMO for torque estimation are designed. The paper [20] proposes a SMC with unidirectional auxiliary surfaces to deal with indefinite friction forces and inertia.…”

mentioning

confidence: 99%

Sliding mode observer and controller for Performance improvement of Brushless DC Motor

Potnuru¹,

Kumar²

2017

IJET

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Abstract-The present paper proposes a control scheme comprising of a new sliding mode controller (SMC) with sliding mode observer (SMO) for improved performance of a Brushless DC (BLDC) motor. The SMO is used to estimate rotor speed and rotor position using terminal voltages and currents of the BLDC motor. The error between actual and estimated currents taken as the sliding surface from which the back emf is estimated which is further used to estimate rotor position and speed. The SMC consists of both speed control and current control loops where the reference to the currents is derived from speed error using PI controller. The speed error and current error together comprises the sliding surface. The proposed SMC is an alternative to second order SMC and it eliminates the derivative of the sliding variable for speed control thus eliminating complexity while preserving the benefits. The simulation results of the proposed scheme are compared with those of the conventional scheme to prove its effectiveness.Keyword-BLDC Motor, Sliding mode controller, Sliding mode observer I. INTRODUCTION There has been a tremendous interest in permanent magnet drives in recent years due to their excellent characteristics like low power requirement, high energy savings and ease of control. Majority of the BLDC motor advantages attributed to its construction in which its armature winding placed in stator and field is provided withthe permanent magnets placed in rotor. This makes the cooling arrangement is easier for BLDC motor as compared to the conventional dc motor. Due to the permanent magnet rotor, the commutation process is not possible from the rotor side like a DC motor [1]. So an electronic commutation is used in which the supply to the motor will be controlled through inverter. In order to make a phase to conduct, we need to find the exact location of the rotor poles and the commutation sequence must be ensured such that a phase difference of 90o must be maintained between stator flux and rotor flux to get maximum torque [2].To attain information regarding the position of rotor, transducers like hall sensors are used. The hall sensor transmits logic high or logic low signal based on the proximity of a pole as the magnetic field of a pole induces emf in it. For a three phase BLDC motor, three sensors are aligned with 1200 phase shift to get complete information regarding back emf voltages in all phases and this hall sensor circuit is placed on the non-rotating part of motor [3].The position sensor circuit requires a special arrangement to be mounted on the motor and need dedicated electronic circuitry. If the motor is far away from the control center, then we need a separate cabling system for signal transmission. All these requirements increase the cost and reduce the reliability of the drive [4]. Hence sensor control schemes cannot be utilized in situations where high reliability is needed and the motor has to operate in harsh environments. One of the solutions is to estimate the position of the rotor using voltage and curr...

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Comparative Study Between PI Speed Control and Sliding Mode Control of BLDC Motor

Idrissi

Bouchnaif

Mokhtari

et al. 2020

Advances in Smart Technologies Applications and Case Studies

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Sliding mode speed control for brushless DC motor based on sliding mode torque observer

Cited by 23 publications

References 1 publication

Design of Control System for 4-Switch BLDC Motor Based on Sliding-Mode and Hysteresis Controllers

Design of Control System for 4-Switch BLDC Motor Based on Sliding-Mode and Hysteresis Controllers

Sliding mode observer and controller for Performance improvement of Brushless DC Motor

Comparative Study Between PI Speed Control and Sliding Mode Control of BLDC Motor

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