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基于EKF的异步电机转速和负载转矩估计
引用本文:于洪霞,胡静涛. 基于EKF的异步电机转速和负载转矩估计[J]. 仪器仪表学报, 2011, 32(2)
作者姓名:于洪霞  胡静涛
作者单位:1. 中国科学院沈阳自动化研究所,工业信息学重点实验室,沈阳,110016;中国科学院研究生院,北京,100039;沈阳工业大学信息学院,沈阳,110870
2. 中国科学院沈阳自动化研究所,工业信息学重点实验室,沈阳,110016
摘    要:
合理选择电机的容量具有重要的意义,电机的容量可根据电机的转速和负载转矩确定,将电机的转速和负载转矩同时作为系统的状态,提出了一种基于EKF同时估计异步电机转速和负载转矩的方法,建立了包含异步电机转速和负载转矩状态的系统模型,基于该模型用EKF实现了同时估计异步电机转速和负载转矩,仿真和实验验证了所提方法能以较高的精度同时估计出电机的转速和负载转矩.

关 键 词:异步电机  扩展卡尔曼滤波器  转速  负载转矩

Speed and load torque estimation of induction motor using extended Kalman filter
Yu Hongxia,Hu Jingtao. Speed and load torque estimation of induction motor using extended Kalman filter[J]. Chinese Journal of Scientific Instrument, 2011, 32(2)
Authors:Yu Hongxia  Hu Jingtao
Affiliation:Yu Hongxia1,2,3,Hu Jingtao1(1 Key Laboratory of Industrial Informatics,Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110016,China,2 Graduate School of the Chinese Academy of Sciences,Beijing 100039,3 Department of Information Sciences and Engineering,Shenyang University of Technology,Shenyang 110870,China)
Abstract:
Reasonable selecting motor capacity is important;induction motor capacity can be determined by its speed and load torque.In this paper,a method for simultaneously estimating motor load torque and speed using extended Kalman filter is presented,a state space model of induction motor including speed and load torque states is established;based on this model,EKF is used to implement the estimation of speed and load torque of induction motor.Simulation and experiment results demonstrate that the proposed method ...
Keywords:induction motor  extended Kalman filter  speed  load torque  
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