Efficient modelling for a brushless DC motor drive

Luk, P.C.K.; Lee, C.K.

doi:10.1109/iecon.1994.397774

Cited by 14 publications

(5 citation statements)

References 1 publication

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“…The proposed commutation scheme has been validated through simulation. By using the switching patterns the effective modeling of BLDC motor can be possible [13][14]. The proposed algorithm has been applied to BLDC motor model in MATLAB/Simulink and the results validate the scheme.…”

Section: Introductionmentioning

confidence: 89%

A Single Neuron Speed Controller for BLDC Motor Driven by Pseudo Sinusoid Commutation

Varghese¹,

Gopinath²,

John³

2012

IJCA

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The paper presents a novel method of speed control with Single neuron PI controller with a simple and novel commutation scheme, "Pseudo Sinusoid Commutation" for a BLDC motor with improved performance. BLDC motors are one of the electrical drives that are rapidly gaining popularity, due to their high efficiency, good dynamic response and low maintenance. The proposed scheme of commutation is theoretically a compromise between six-step trapezoidal commutation and the sinusoidal commutation. The proposed algorithm has considerably lesser torque ripple in comparison to the existing trapezoidal commutation. In addition to the proposed commutation scheme addresses the inherent disadvantage of higher switching losses associated with sinusoidal commutation. The proposed commutation scheme utilizes the six non-zero switching vectors of the 2-level inverter to synthesize the reference vector at any instant. The proposed commutation scheme can be implemented in analog domain without complexity. A single neuron PI controller is used to control the speed, by adjusting the weight. The simulations for the schemes presented in the paper are carried out in MATLAB/SIMULINK, according to simulation, the proposed strategy shows good self adapted track ability, also the structure of the drive is simplified.

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Section: Introductionmentioning

confidence: 89%

A Single Neuron Speed Controller for BLDC Motor Driven by Pseudo Sinusoid Commutation

Varghese¹,

Gopinath²,

John³

2012

IJCA

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“…The BLDCM has three stator windings and permanent magnets on the rotor.Since both the magnet and the stainless steel retaining sleeves have high resistivity, rotor-induced currents can be neglected and no damper windings are modeled [2]. Hence the circuit equations of the three windings in phase variables are described as Eq.…”

Section: Mathematical Model Of the Brushless DC Motormentioning

confidence: 99%

“…e a ,e b ,e c: Back EMF of 3-phase. (2) Where e T is the belectromagnetic torque of motor, Ω is mechanical angular velocity of rotor.…”

Section: Mathematical Model Of the Brushless DC Motormentioning

confidence: 99%

A practical method to eliminate the conduction torque ripple in BLDCM using cascade topology

Zhang

Chen

Liu

2008

2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition

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This paper presents a comprehensive research on torque ripples of brushless dc motor drive in conduction region based on the mathematical models.The phenomenon of torque ripples of conduction exists because of diode freewheeling happened under the conventional PWM schemes.Through theoretical and mathematical analysis, A new method for reducing the torque ripple in brushless dc motors with a single current sensor has been proposed by adding the DC-DC converter that regulates the amplitude of the current. So in such drives, torque ripples are theoretically eliminated in conduction region. Effectiveness and feasibility of the proposed control method is verified by experiments. Torque ripples due to diode freewheeling current and conventional high-frequency PWM modulation have vanished. So it is preferable for the drive system of high accuracy-controlling BLDCM.

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“…They are either state space modeling or modeling based on d-q transformation, but there is no comprehensive model for the analysis of motor with Sensorless operation (Luk and Lee, 1994). The machine models are often transformed to a rotating reference frame to simplify and to improve the computational efficiency.…”

Section: Introductionmentioning

confidence: 99%

Simplified Modeling, Analysis and Simulation of Permanent Magnet Brushless Direct Current Motors for Sensorless Operation

Kaliappan¹,

Chellamuthu²

2012

American Journal of Applied Sciences

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Problem statement:In this study, a simplified modeling and experimental analysis of Permanent Magnet Brushless DC (PMBLDC) motors for Sensorless operation using MATLAB/SIMULINK. This model provides a mechanism for monitoring and controlling the voltage, current, speed and torque response. Approach: BLDC motor is modeled as sub-blocks. The inverter and switching function are implemented as S-function builder block. The Sensorless scheme employs direct back emf based zero crossing detection technique. Results: The proposed model with Sensorless control technique with back emf zero crossing detection is tested in the BLDC Motor and the performance was evaluated. The simulated and experimental results show that the proposed modeling works quite well during starting and running conditions. Conclusion/Recommendation: The developed model consists of several independent sub-blocks, that can be used in the modeling of Permanent Magnet Sinusoidal Motor and induction motor. Hence the developed simulation model is a design tool to study the dynamic behavior of Sensorless Controlled Brushless DC Motor.

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Efficient modelling for a brushless DC motor drive

Cited by 14 publications

References 1 publication

A Single Neuron Speed Controller for BLDC Motor Driven by Pseudo Sinusoid Commutation

A Single Neuron Speed Controller for BLDC Motor Driven by Pseudo Sinusoid Commutation

A practical method to eliminate the conduction torque ripple in BLDCM using cascade topology

Simplified Modeling, Analysis and Simulation of Permanent Magnet Brushless Direct Current Motors for Sensorless Operation

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