摘要
根据空调产品的噪声问题,研究了风机电机与整机的共振现象,分析了现有谐波注入技术存在的缺陷,提出了自适应电控降噪技术,通过振动传感器构成反馈回路,实现了对系统共振状态的检测,提出了谐波注入参数搜索算法,根据振动情况自动进行谐波注入,实现了共振的最优抑制,解决了管道风机系统的共振问题。
Based on the noise problem of the air conditioner,the authors research the resonance problem of fan motor and pipeline blower,analyze the drawback of the present harmonic injection based noise suppression technology.Based on this,the authors proposed the adaptive noise suppression method.In the proposed method,a feedback loop is constructed from an acceleration sensor and realize the condition monitor of the system vibration resonance.The injected harmonics are automatically adjusted according to the vibration,and the best suppression is realized.The resonance noise is resolved by the proposed method.
作者
肖力凡
程云峰
许培林
XIAO Lifan;CHENG Yunfeng;XU Peilin(Midea Welling Technology(Shanghai)Co.,Ltd.,Shanghai 200120)
出处
《家电科技》
2022年第S01期400-406,共7页
Journal of Appliance Science & Technology
关键词
风机电机
管道风机
降噪
共振
Fan motor
Pipeline blower
Vibration resonance
Noise reduction
作者简介
肖力凡,电气工程博士。研究方向:电机控制与控制系统仿真技术。地址:上海市浦东新区张东路1387号42栋。E-mail:xiaolf6@midea.com。
