【摘要】 通过对变频器基本结构及其产生电磁干扰原因的分析,并针对其原因采取相应的技术措施,使变频器能可靠应用于特种装备中。在变频调速系统中,用滤波、屏蔽、搭接地线的方法来消除干扰杂波,将变频器产生的电磁谐波幅度衰减到规定的范围内,它在工作时对外界不会产生多大影响,可与海船上的其他设备并列运行。因此在特种设备中,可以选用变频器作为基本控制单元。更多还原

【Abstract】 The structure of frequency converter and the reason of its harmonic wave were analyzed,and by taking effective technical measures,the frequency converter can be used reliably in special equipments.The amplitude of harmonic wave is attenuated to the prescribed level by filtering,shielding,connecting ground,and frequency converter can′t affect other equipments,and they will work harmoniously on ships.So the frequency converter can be used as basis control unit in special equipments.更多还原