摘要
在数字控制器中,不可避免地要对信号进行各种处理:如求平均、滤高频、平滑信号等。滑动平均滤波器由于其算法简单,运用灵活并能完全滤除基频及谐波,因此在数字控制器中得到广泛应用。滑动平均滤波器的缺点是占用存储空间较大,因此在数字控制器中无法大量使用。此处结合周期平均的概念对滑动平均滤波器进行改进,在不影响器原本处理效果的前提下,大大减小了使用的存储空间,并利用仿真和实验证明了该改进算法的实用性。
In digital controller,signal processing such as averaging,filtering the high frequency signal and data smoothing is inevitable.The moving avarage filter is widely used in digital controller because of it＇s simple algorithm, flexible application and complete elimination of the fundamental component and harmonics.However,the shortcoming of the moving avarage filter,which restricts its quantity in digital controller, is the excess storage space to be uesd.In this research, the moving avarage filter is improved by combining with the cycle average algorithm.The novel moving avarage filter uses fewer storage space than the original one while the performance is not declined, and the conclusion is verified by the experiment and simulation.
出处
《电力电子技术》
CSCD
北大核心
2014年第9期68-70,共3页
Power Electronics
