Transformer noise suppression method based on load fluctuation

The invention relates to a transformer noise suppression method based on load fluctuation. The method comprises the steps of carrying out real-time collection of some specific data during the operation of a transformer, carrying out analysis and calculation to obtain a load fluctuation coefficient, deducing a load fluctuation transfer function according to the load fluctuation coefficient, inputting the collected data into a controller of a transformer active noise reduction system, outputting a secondary sound source by means of the active noise reduction system according to a load fluctuation transfer function, and mutually superposing the secondary sound source and transformer noise sound waves, so that the transformer noise can be effectively reduced. 本发明涉及一种基于负载波动的变压器噪声抑制方法，其步骤为，首先对变压器运行时的一些特定数据进行实时采集，分析计算得到负载波动系数，根据负载波动系数推导出负载波动传递函数，将采集的数据输入到变压器有源降噪系统控制器中，根据负载波动传递函数，有源降噪系统输出次级声源，次级声源与变压器噪声声波，通过相互叠加，可有效对降低变压器噪声。