小型风力发电系统噪声的有源控制研究  

Active Noise Control Research in a Small-sized Wind Power Generation System

作　　者：王洪玲[1] 齐保良[1] 

机构地区：[1]山东建筑大学信息与电气工程学院,山东济南250101

出　　处：《控制工程》2012年第S1期58-61,65,共5页Control Engineering of China

基　　金：中国山东省科技计划重大专项(2005GG21006001)

摘　　要：对小型家用风力发电系统中以空气动力噪声、机械振动噪声和电磁噪声为主的低中噪声作了频谱分析,提出了在小型风力发电系统噪声控制中应用有源噪声控制技术的可能性。讨论了应用有源噪声控制技术的困难:反噪声场的引入、有效参考输入信号的获取和有源噪声控制器的设计,并找出了解决办法。引入反噪声场数学模型推导并完成反噪声场的装置的设计搭建,通过对风力发电机噪声信号与其不同位置振动信号的相干性分析,选取发电机振动信号作为噪声信号的有效参考信号,并对其建立了数学模型和进行了傅立叶分解,最后设计了有源噪声控制系统,并进行了建模和编程,对实验结果进行了记录并分析,得出可以在小型风力发电系统噪声控制中应用有源噪声控制技术的结论。The small-sized wind power generation system's air dynamic noise,mechanical vibration noise and generator electromagneticvibration noise is analyzed on spectrum,and the feasibility of a self-adaptive active noise control application to low and medium frequency is proposed,then the difficulties in the application of active noise control is discussed and solved,reverse noise field mathematical model was introduced,the device is designed and built.The coherence analysis to choosing the reference signal is studied between the noise signal and the vibration signal in the different position of a small-sized wind generator,and generator vibration signal is chosen to be reference signal of noise.In the end,the system's modeling and programming was done,the experimental result is record and analyzed. The conclusion is active noise control can be applied in a small-size wind power system noise control.

关 键 词：小型风力发电系统 有源噪声控制 频谱分析 数学模型 

分 类 号：TM614[电气工程—电力系统及自动化]