Dissertation > Excellent graduate degree dissertation topics show

Loss Research and Thermal Analysis of High Speed Permanent Magnet Synchronous Motor

Author: SunZhiYin
Tutor: LiLiYi
School: Harbin Institute of Technology
Course: Electrical Engineering
Keywords: High-speed motor Loss Temperature field Flow field Thermal Characteristics
CLC: TM341
Type: Master's thesis
Year: 2011
Downloads: 254
Quote: 0
Read: Download Dissertation

Abstract


The high-speed motor speed and frequency are much higher than ordinary motor loss and temperature rise characteristics are very different from ordinary motor. Accurately calculate the distribution of high-speed motor loss and temperature changes, not only to ensure the high reliability of the premise of the motor, and also the development of an ultimate performance motor guarantees. Loss and thermal characteristics of the high-speed permanent magnet synchronous motor is more accurate calculation of the loss and temperature rise of high-speed motor and angle from the motor thermal characteristics of the high-speed motor optimal design method. First, based on the calculation of the electromagnetic field of high-speed permanent magnet synchronous motor, the analysis of the electromagnetic loss and its variation. Mainly carried out analysis of PWM harmonic copper loss and iron loss analysis based on the separation of iron consumption model, and to study the impact of its loss characteristics of high speed motor slot structure. Secondly, according to the principles of fluid mechanics and heat transfer, to carry out a study of high-speed motor temperature field calculation method. Based on air flow field in the air gap of high speed motor, the loss of high-speed motor wind mill. Based on convective heat transfer theory, using similar criteria to strike the coefficient of convective heat transfer surface of the motor. Establish a high-speed motor Flow and Temperature Field sequential coupling model, the dynamic temperature distribution of the high-speed motor. Meanwhile, in real-time to consider the state of air flow in the air gap and the temperature change of the thermal coefficient, the establishment of a direct coupling of the high-speed the motor flow field and temperature field model, including the unique considerations of the stator inner circle the alveolar mouth of the air gap heat coefficient. Comparative analysis of the high-speed motor flow and temperature fields in the sequential coupling model and the calculation results of the direct coupling model, and expand high-speed motor temperature experiment to prove the accuracy of the method of calculation of the temperature field in the papers. Finally, the establishment of a high-speed motor fluid temperature field coupling model to analyze the influence of high-speed motor in the convective heat transfer on the temperature rise, including the presence of the air gap alveolar air gap thermal coefficient and the motor air-cooled ventilation rate motor shell heat coefficient. Different slot structure of the motor temperature rise characteristics, and studied law the corresponding slot structure and slotless structure, between the high-speed motor load and magnetic load ratio and loss and temperature rise, explore to balance temperature distribution, reduce the temperature rise as the goal of high-speed motor optimal design method.

Related Dissertations

  1. Study on Contact Fatigue Life Based on Grease Variation with Temperature,TH117.22
  2. Investigation of Turbine S2 Stream Surface Direct Problem Aerodynamic Optimization Design,V235.11
  3. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  4. Analysis and Study of Abutment Stability in Concrete High Arch Dam by Three-Dimensional Nonlinear Finite Element Method,TV642.4
  5. Key Technologies of Dam-break Life Loss Risk Assessment Research,TV122.4
  6. Research of Irreversible Loss in Flow and Mexed Prosess,TK12
  7. Study on the Influence of Drive Strategies on the Loss in AC Permanent Magnet Motor,TM351
  8. Packet Loss Recovering Technology for Speech Transmission over Network,TN912.3
  9. Design and Processing of Hybrid Modulated HF Radar Waveform,TN958.93
  10. Lijiang River,RS and GIS - based Soil Erosion Research,S157
  11. Study on the Preparation of Polyethylene Naphthalate and Its Performance,TQ316.33
  12. Study of the Fabrics’ Thermal-Wet Comfort in Hingh Humidity Environment,TS101.923
  13. Research on the Laws of Nitrogen and Phosphorus Loss and Control Scheme in Eryuan Rural,X712
  14. Study on the Simulation of Agricultural Non-point Source Pollution in Huaihe River Basin in Henan Provice,X52
  15. Researcg of Local Government Credit Construction,D630.1
  16. The Research on Influence of Line Losses in the Distrebution Network with Small Rural Hydropowers,TM727.1
  17. The National Archives Recovery Strategy Research,G272.2
  18. On the Simulant Research of the Pneumatic Cleaning Mechanism of Mini-combine Harvester,S225.3
  19. HPV Genotype and Microsatellite Alterations in Tissues of Condyloma Acuminatum,R737.33
  20. Acute low-tone sensorineural hearing loss clinical observation,R764
  21. Some losses renewal equation equivalent conditions for asymptotic,O211.67

CLC: > Industrial Technology > Electrotechnical > Motor > AC motor > Synchronous motor
© 2012 www.DissertationTopic.Net  Mobile