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基于无传感器负载转矩估计和无源性的降压式变换器供电直流电动机控制

Sensorless load torque estimation and passivity based control of buck converter fed DC motor.

作者信息

Kumar S Ganesh, Thilagar S Hosimin

机构信息

DEEE, Anna University, Chennai 600 025, India.

出版信息

ScientificWorldJournal. 2015;2015:132843. doi: 10.1155/2015/132843. Epub 2015 Mar 29.

DOI:10.1155/2015/132843
PMID:25893208
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4393902/
Abstract

Passivity based control of DC motor in sensorless configuration is proposed in this paper. Exact tracking error dynamics passive output feedback control is used for stabilizing the speed of Buck converter fed DC motor under various load torques such as constant type, fan type, propeller type, and unknown load torques. Under load conditions, sensorless online algebraic approach is proposed, and it is compared with sensorless reduced order observer approach. The former produces better response in estimating the load torque. Sensitivity analysis is also performed to select the appropriate control variables. Simulation and experimental results fully confirm the superiority of the proposed approach suggested in this paper.

摘要

本文提出了无传感器配置下直流电机的基于被动性的控制方法。精确跟踪误差动态被动输出反馈控制用于在诸如恒转矩型、风扇型、螺旋桨型以及未知负载转矩等各种负载转矩下稳定降压变换器供电直流电机的速度。在负载条件下，提出了无传感器在线代数方法，并将其与无传感器降阶观测器方法进行了比较。前者在估计负载转矩方面产生了更好的响应。还进行了灵敏度分析以选择合适的控制变量。仿真和实验结果充分证实了本文所提出方法的优越性。

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