NDLI: Performance analysis of the 2DoF direct drive induction motor applying composite multilayer method

Content Provider	IET Digital Library
Author	Si, Jikai Xie, Lujia Cao, Wenping Hu, Yihua Feng, Haichao
Abstract	This study presents a composite multilayer method (CMM) to evaluate the performance of a two-degree-of-freedom (2DoF) direct drive induction motor (2DoFDDIM) whose solid rotor is coated with a copper layer. It includes a rotary part and a linear part. Based on the traditional multilayer theory, a complete 2DoFDDIM CMM computer program importing propagation constants is built. Due to the complex magnetic field in a 2DoFDDIM, this study mainly analyses it from the perspective of a single DOF motor. An equivalent circuit for the rotary part of the 2DoFDDIM is then derived applying CMM and the 2D magnetic field distribution is obtained by solving Maxwell's equations in motor layers. The developed torques, power factors and stator currents of the rotary part with different slips and the latter two of the linear part at zero speed are calculated by CMM, which are then compared with results from the finite element method (FEM) and experimental results. The computation time of the CMM is far less than that of the FEM. The acceptable accuracy confirms the effectiveness of the CMM for analysis and performance calculations of the 2DoFDDIM.
Starting Page	524
Ending Page	531
Page Count	8
ISSN	17518660
Volume Number	11
e-ISSN	17518679
Issue Number	Issue 4, Apr (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/11/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2016.0469
Journal	IET Electric Power Applications
Publisher Date	2017-04-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	2D Magnetic Field Distribution 2DoF Direct Drive Induction Motor 2DoFDDIM CMM Computer Program Asynchronous Machine CMM Computation Time CMM Effectiveness Complex Magnetic Field Composite Multilayer Method Copper Copper Layer Drive Equivalent Circuit Induction Motor Drive Magnetic Field Maxwell Equation Performance Analysis Performance Evaluation Power Factor Power Factors Propagation Constants Rotors Solid Rotor Stator Current Stators Two-degree-of-freedom Direct Drive Induction Motor
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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