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Sliding-mode observers for systems with unknown inputs and measurement disturbances 被引量：1

Sliding-mode observers for systems with unknown inputs and measurement disturbances
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摘要 The method to design sliding-mode observers for systems with unknown inputs and measurement disturbances is presented in the paper. An augmented system is constructed by viewing the measurement disturbances as unknow inputs. For such an augmented system, the so-called observer matching condition is not satisfied. Based on the construction of auxiliary outputs, the observer matching condition may be satisfied. High-order sliding-mode differentiators are developed to obtain the estimates of those unmeasurable variables contained in the auxiliary output vector. Employing the estimate of auxiliary output vector, a sliding-mode observer is designed. The simulation results to a real model show that the proposed method is effective. The method to design sliding-mode observers for systems with unknown inputs and measurement disturbances is presented in the paper. An augmented system is constructed by viewing the measurement disturbances as unknow inputs. For such an augmented system, the so-called observer matching condition is not satisfied. Based on the construction of auxiliary outputs, the observer matching condition may be satisfied. High-order sliding-mode differentiators are developed to obtain the estimates of those unmeasurable variables contained in the auxiliary output vector. Employing the estimate of auxiliary output vector, a sliding-mode observer is designed. The simulation results to a real model show that the proposed method is effective.
作者 韩冬 李春茹
机构地区 Department of Automation School of Transportation and Logistics
出处 《Journal of Chongqing University》 CAS 2015年第2期63-72,共10页 重庆大学学报（英文版）
基金 Funded by the National Natural Science Foundation(No.61203299/F030506)
关键词 augmented system high-order sliding-mode differentiators measurement disturbances sliding-mode observer augmented system high-order sliding-mode differentiators measurement disturbances sliding-mode observer
分类号 TP13 [自动化与计算机技术—控制理论与控制工程]
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参考文献27

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二级参考文献20

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共引文献16

同被引文献18

  • 1周雒维,杨柳,彭国秀,杜雄.一种永磁同步电机滑模观测器的设计[J].重庆大学学报（自然科学版）,2008,31(1):34-37. 被引量：5
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  • 6PISANO A, DAVILA A, FRIDMAN L, et al. Cascade con- trol of PM DC drives via second-order sliding mode tech- nique[ J ]. [EEE Transactions on Industrial Electronics, 2008,55 ( 11 ) :3846-3854.
  • 7KIM S Y, CHOI C, LEE, K. et al. An improved rotor po-sition estimation with vector-tracking observer in PMSM drives with low-resolution hall-erect sensors [ J ]. IEEE Transaetious on Industrial Electronics, 2011,58 ( 9 ) : 4078-4086.
  • 8COLLI V D, STEFANO R D, MARIGNETFI F A, system- on-chip sensorless control for a permanent-magnet synchro- nous motor[ J]. IEEE Transactions on Industrial Elec- tronics,2010,57( 11 ) :3822-3829.
  • 9CHI S, ZHANG Z, XU L Y. Sliding-mode scnsorless con- trol of direct-drive PM synchronous motors for washing ma- chine applications [ J ]. IEEE Transactions on Industry Applications ,2009,45 (2) :582-590.
  • 10KIM H, SON J, LEE J. A high-speed sliding mode observ- er for the sensorless speed control of a PMSM [ J ]. IEEE Transactions on Industrial Electronics, 2011,58 ( 9 ) : 4069-4078.

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Journal of Chongqing University
2015年 第2期

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