Calculation of Iron Loss of Medium-sized High Voltage Motor which Have Axial Ventilation Holes in Rotor

2017 2nd Asia Conference on Power and Electrical Engineering

能源学;电工学

Meng, Da-Wei^1 ; Li, Jin-Xiao^1

College of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin

150080, China^1

关键词: Finite-element fields;    Geometric modeling;    High power density;    High voltage motor;    Iron loss calculations;    Magnetic circuit method;    Specific distribution;    Temperature rise;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/199/1/012099/pdf
DOI  :  10.1088/1757-899X/199/1/012099

来源: IOP

【 摘 要 】

When optimizing the ventilation and cooling system of medium-sized high power density asynchronous motor, it is found that the temperature rise of the motor can be greatly reduced after punching the axial ventilation holes in the rotor yoke, but the traditional method based on the magnetic circuit method cannot accurately calculate the motor iron loss of this new structure. In this paper combined with the finite element field-circuit-motion coupled analysis method, taking YXKK355-4, 355kW and YKK400-4, 400kW medium-sized high voltage asynchronous motor for example, a two-dimensional geometric model and mathematical model of the motor are established, then the iron loss calculation method is improved. Using this method not only the iron loss value of the whole motor can be obtained, but also the specific distribution of iron loss in different areas of the motor can be known, and the correctness of the simulation results is proved by experiments.