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Dynamic Characteristics of Permanent Magnet Motor and Structural Optimal Design

Author: GuoXiuYing
Tutor: ZhaoWeiMin
School: Daqing Petroleum Institute
Course: Power Machinery and Engineering
Keywords: Permanent magnet synchronous motor Dynamic characteristics Low speed high torque Structural design Optimization analysis
CLC: TM351
Type: Master's thesis
Year: 2010
Downloads: 119
Quote: 2
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Abstract


The permanent magnet synchronous motor has a simple structure , small size, light weight , high efficiency and high power factor advantages . Starting from the late 1970s , has been the extensive attention of scholars and researchers in the motor and its drive system research . Hardware design and control efforts in the past 20 years has been vigorously developing commercial products have been into the industrial production and other fields . China 's high cost of oilfield motor number of oil field pumping units , large capacity , long years running time , power consumption . Domestic and international energy-saving pumping unit motors attach great importance to the expectations of the scientists developed a new type of permanent magnet synchronous motor to replace the traditional asynchronous motor . For the condition of the oil field in the asynchronous motor there is a big horse cart , low speed high torque direct-drive permanent magnet motor energy-saving programs . First, the development status of the the domestic permanent magnet synchronous motor research . Understand the characteristics and application of permanent magnet synchronous motor based on the study of the dynamic characteristics of permanent magnet motor , external rotor design with the structural parameters and the mechanical strength of the key components of the analysis . Detailed calculation of low speed high torque permanent magnet synchronous motor , and designed to run the control loop . The permanent magnet synchronous motor on low speed high torque because there is no high - speed rotation part , cancel the rear gear, and to simplify the transmission mechanism to improve the accuracy and reliability of the entire apparatus , eliminating such motors due to the noise and vibration caused by the gear , so superior performance attracted the attention of the scientific research, production and use of units . Can be foreseen , with the reduction of the price of permanent magnetic materials and motor manufacturing , the corresponding power electronic devices and high-speed microprocessor development , theoretical research and practical application of the drive system continuously improved and enhanced , permanent magnet synchronous motor drive system will be further development and application , and will gradually replace the existing excitation ordinary electric motor and its drive system .

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