A calculation method of braking torque for eddy current dynamometer using least square method based on assumption of cylindrical ring

Li Duo-Yang, Wang Jun-Zheng, Shen Wei, Chen Ying-Hui, Zhao Jiang-Bo, Chen Guang-Rong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

For engineering applications, the existing method of calculating the braking torque is more complex. Furthermore, the calculation method depends on the internal structure parameters which are often difficult to obtain. Hence, the calculational method of braking torque using least square method based on assumption of cylindrical ring (CR-LS) is proposed in this paper. Referring to calculation methods of eddy current braking devices, The CR-LS assumes that the eddy current is distributed as a cylindrical ring with the same width as the tooth tip of the inductor. Eddy current values are worked out by conversion coefficient. With the employ of LS, unknown internal structure parameters of dynamometer in formula are fitted. It makes the formula use in industrial control with easy. By experimental verification, the formula obtained by CR-LS was simple and available, and calculation results had minor errors in contrast with output values of actual system. Therefore CR-LS can be applied in actual engineering calculations of dynamometer.

Original languageEnglish
Title of host publicationProceedings of the 29th Chinese Control and Decision Conference, CCDC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1092-1096
Number of pages5
ISBN (Electronic)9781509046560
DOIs
Publication statusPublished - 12 Jul 2017
Event29th Chinese Control and Decision Conference, CCDC 2017 - Chongqing, China
Duration: 28 May 201730 May 2017

Publication series

NameProceedings of the 29th Chinese Control and Decision Conference, CCDC 2017

Conference

Conference29th Chinese Control and Decision Conference, CCDC 2017
Country/TerritoryChina
CityChongqing
Period28/05/1730/05/17

Keywords

  • Braking Torque
  • CR-LS
  • Cylindrical Ring
  • Dynamometer

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