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针对电力变压器低频噪声问题,探讨有源噪声控制的设计方法,提出基于参数化线性滤波器优化的有源噪声前馈控制算法,同时给出了信号检测传感器的布放方案,并通过误差传感器展示噪声消除的效果.该有源噪声控制器能实现电力系统设备的噪声自动检测,并根据设备噪声的具体情况实施控制以达到降噪的目的.以220kV电力变压器有源噪声控制为例,实验结果证明,利用有源噪声控制技术实现对电力系统设备低频噪声的控制是一种有效的途径.
Aiming at the problem of low frequency noise of power transformer, this paper discusses the design method of active noise control and proposes an active noise feed-forward control algorithm based on parameterized linear filter optimization. At the same time, the signal detection sensor deployment scheme is given and displayed by error sensor Noise reduction effect.The active noise controller can automatically detect the noise of power system equipment and implement the control according to the specific equipment noise to achieve the purpose of noise reduction.Taking the active noise control of 220kV power transformer as an example, Proved that the use of active noise control technology to achieve low-frequency power system equipment noise control is an effective way.