Research on stator resistance parameter identification for asynchronous motors based on voltage source inverter
WU Qing-hui
PANG Yan-wei
SHEN Qing-huan
WANG Xin-jun
Abstract：It is a key for high performance control strategy of Vector Control , Direct Control , Inverse Decou-pling control and etc to gain precise parameters of asynchronous motor .Especially , the error of stator resistance will bring direct influence to the control strategy based on stator field -orientation.In this paper, the existing problems of the classic identification method are analyzed .The stator resistance identification method , which can eliminate the influence of on-state voltage drop of IGBTs and solve the interference problem of high frequency , is proposed .A tracking-differentiator is designed to pick up the direct part from the disturbed current signals . The simulation testing platform is built , multi groups of experiment data are tested and the stator resistance is i-dentified with the least square method .Its simulation results verified the proposed scheme has strong anti -inter-ference ability and high identification accuracy .
Keywords：asynchronous motoroff-line parameter identificationleast square methodtracking-differ-entiator
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 230-238 )