A new approach of sensorless control methodology for achieving ideal characteristics of brushless DC motor using MATLAB/Simulink

Proceedings of the 2015 Third International Conference on Computer, Communication, Control and Information Technology (C3IT) Pub Date : 2015-03-16 DOI:10.1109/C3IT.2015.7060197

S. Mondal, Arunabha Mitra, D. Chowdhury, M. Chattopadhyay

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引用次数: 16

Abstract

This paper describes a new mathematical model of permanent magnet brushless dc motor (PMBLDC) with sensorless commutated drive on MATLAB/Simulink based platform. The main challenges in sensorless BLDC commutation techniques compared with sensored drive lies in identification of first commutation point and minimization of torque ripple. In this work, an ideal back-EMF generation methodology has been designed and implemented in order to incline the system with the ideal one. As a result, a significant reduction in torque ripple is achieved. The characteristics of this model give satisfactory outputs over a wide range of controlled speed variation from 700 to 14000 rpm. Moreover, the torque and speed characteristic provide a high torque even at low speed. The strength of the sensorless commutation technique used here is established by performance analysis of the simulated design.

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利用MATLAB/Simulink实现无刷直流电动机理想特性的无传感器控制方法

本文在MATLAB/Simulink平台上建立了无传感器换向驱动永磁无刷直流电动机的数学模型。与有传感器驱动相比，无传感器无刷直流换相技术面临的主要挑战在于第一换相点的识别和转矩脉动的最小化。在这项工作中，设计并实现了一种理想的反电动势产生方法，以便使系统与理想的反电动势产生方法倾斜。因此，实现了显着减少转矩波动。该模型的特点是在700到14000 rpm的广泛控制速度变化范围内提供满意的输出。此外，扭矩和速度特性提供了一个高扭矩，即使在低速。通过对仿真设计的性能分析，确定了本文采用的无传感器换相技术的强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 2015 Third International Conference on Computer, Communication, Control and Information Technology (C3IT)

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