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http://dx.doi.org/10.5370/KIEE.2017.66.7.1047

The Estimation of Torque Ripple According to Parameters Considered Time-varying in Voltage Equation  

Gim, Gyu-Hwa (Dept. of Electrical Engineering, Changwon National University)
Cho, Gyu-Won (Motor R&D Center, S&T Motiv)
Kim, Gyu-Tak (Dept. of Electrical Engineering, Changwon National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.66, no.7, 2017 , pp. 1047-1052 More about this Journal
Abstract
In this paper, the calculation torque using the d-q axis has advantage like faster execution time. However, the torque ripple can't be considered in the torque calculation using d-q axis equivalent circuit because the time-dependent component is removed. When d-q transformation was performed, it was founded that some parameters has some characteristics. These characteristics were considered for representing torque ripple. The calculation with d-q axis transformation and Finite Element Analysis(FEA) were performed, and the results were compared. As a result, it was validated that the calculated torque can be expressed with ripple.
Keywords
Torque; Inductance; Voltage equation; FEM; Torque ripple; Vector diagram;
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