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Properties Analysis and Optimization Design of Rotor for High Speed PM Machine

Author: FangCheng
Tutor: WangFengXiang；ZhangFengGe
School: Shenyang University of Technology
Course: Motor and electrical
Keywords: High - speed permanent magnet motor Mechanical properties Electromagnetic properties Rotor dynamic characteristics Rotor design
CLC: TM351
Type: Master's thesis
Year: 2010
Downloads: 427
Quote: 2
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Abstract


Microturbines for distributed power supply system in recent years, more and more attention driven high-speed generator . High - speed permanent magnet motor is characterized by high speed , small size motors , power density , high efficiency . But it is precisely because of these characteristics , so that a series of new problems in its design , the need for research . Due to the high speed of the motor , usually in 30000r/min , even more than the rate of 100000r/min permanent magnet rotor design is the key to overall consideration to the various demands of the dynamic characteristics of the mechanical , electromagnetic and rotor . This article is in this context of a high-speed permanent magnet rotor object of study, its design method and the above-mentioned three characteristics of a comprehensive study . First, high - speed permanent magnet motor , the stator and rotor structure design, to determine its basic dimensions . The strength of the high-speed permanent magnet motor rotor , electromagnetic and modal analysis method , and a comprehensive analysis of the characteristics of the high-speed permanent magnet rotor . Discussion of the structure of different rotor and stator structure of the rotor of the three characteristics , regularity conclusions drawn apply to high-speed permanent magnet motor . Secondly, a comprehensive analysis based on the stress field , electromagnetic field and rotor dynamic characteristics of high-speed permanent magnet rotor to optimize the design . Optimization analysis module using ANSYS finite element nonlinear contact analysis , transient electromagnetic field analysis and rotor combination of modal analysis to optimize meet the the rotor strength of electromagnetic and dynamic characteristics of the foundation of the rotor . Through the test to verify the correctness of the analytical method , the indirect proof of the credibility of the optimal solution . Finally, 60000r/min 100kW high - speed permanent magnet motor rotor based analysis of its unbalanced magnetic pull and quality eccentric centrifugal force , through the rotor dynamic response of nonlinear analysis method that NEWMARK implicit integration method for calculation of the rotor in the two nonlinear unbalance response force , and get a variety of shaft orbit , summed up the high-speed permanent magnet rotor vibration with speed variation .

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CLC: > Industrial Technology > Electrotechnical > Motor > A special motor > Permanent magnet motor
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