摘要
永磁变频螺杆压缩机是未来螺杆压缩机的发展趋势。本文针对所设计的额定功率45k W、额定转速4000r/min压缩机用永磁电机转子结构进行了研究。研究内容包括:1用有限元法分析了不同隔磁磁桥宽度对电机性能的影响;2利用非均匀气隙方法对电机的转子结构进行了优化并分析了非均匀气隙对电机性能的影响;3利用ANSYS有限元软件,对优化前、后转子结构进行机械强度有限元计算,验证了设计电机的安全性。
Permanent magnet frequency screw compressor is the future development trend of the screw compressor. In this paper, a 45kW/4000rpm compressor with permanent magnet motor rotor structure is studied. It is mainly di- vided into the following several aspects： first, using finite element method to analyze the magnetic bridge width af- fect the performance of motor; second, non-uniform air-gap method is used to optimize the rotor structure and to an- alyze the effect of the non-uniform air-gap on the performance of motor; and third, using ANSYS finite element soft- ware to calculate the mechanical strength of the rotor structure and to verify the security of the motor.
出处
《电工电能新技术》
CSCD
北大核心
2015年第7期22-26,共5页
Advanced Technology of Electrical Engineering and Energy
关键词
螺杆压缩机
隔磁磁桥
永磁电机
机械强度计算
screw compressor
magnetic bridge width
permanent magnet motor
mechanical strength calculation
