中国电机工程学报2024，Vol.44Issue(8)：3248-3259,中插26,13.DOI:10.13334/j.0258-8013.pcsee.231468
磁导相位偏置技术及其在压缩机电磁噪声抑制中的应用
Magnetic Permeance Phase Bias Technology and Its Application in Compressor Electromagnetic Noise Suppression
摘要
Abstract
A novel method is proposed to reduce the vibration and noise in air compressors by using a magnetic permeance phase bias(MPPB).With additional phase shifts on some certain harmonics of magnetic permeance,the phases of related magnetic harmonics in stator and rotor core are also biased,thereby reducing the amplitude of the on-load magnetic density harmonics and weakening the double frequency radial force.First,the influence of MPPB on the amplitude of magnetic field harmonics is analytically derived.Then,an eccentric arc tooth structure is proposed for a 9-slot 6-pole permanent magnet synchronous motor(PMSM).By using finite element method,the influence between the phases of magnetic permeance harmonics and the magnetic density of harmonics is analyzed.The magnetic density of second harmonics under load and the radial force density of the proposed structure are compared with those of conventional structure,respectively.Finally,the reduction on vibration acceleration and noise of the MPPB structure is verified by comparing the proposed MPPB structure and conventional structure with vibration test of single motor,compressor noise and air condition system noise.关键词
磁导相位偏置/电磁噪声/径向电磁力/永磁同步电机Key words
magnetic permeance phase bias(MPPB)/electromagnetic noise/radial electromagnetic force/permanent magnet synchronous motor(PMSM)分类
信息技术与安全科学引用本文复制引用
邱小华,赵世伟,杨向宇,尹华杰,李宗洋,龚浩文..磁导相位偏置技术及其在压缩机电磁噪声抑制中的应用[J].中国电机工程学报,2024,44(8):3248-3259,中插26,13.基金项目
广东省自然科学基金项目(2018A0303130221). Natural Science Foundation General Project of Guangdong Province(2018A0303130221). （2018A0303130221）
