基于波束形成的变压器声源定位技术研究

Research on Sound Source Localization for the Transformer Based on Beamforming Technology

针对我国现有变电站主变压器噪声治理工程中缺乏相应声源定位与诊断方法的问题,基于波束形成技术自主研发了一套传声器阵列声源定位系统,并将其应用到110 k V主变压器声源定位中。通过分析其表面声压云图,确定了主变压器表面噪声辐射的主要区域,验证了其在变电站主变压器应用的可行性,为进一步研制适用于变电站的噪声识别系统提供了借鉴与参考。

Aiming at the lack of corresponding sound source localization and diagnosis methods for the existing substation main transformer noise control engineering, a set of microphone array sound source localization system is researched and developed independently based on beamforming technology, which has been applied in the sound source localization for the 110 kV main transformer. The area of noise radiation on the surface of the main transformer is determined by analyzing the surface sound pressure contours. Thus, it verifies the feasibility of its application in substation main transformer and provides the reference to further development of the noise recognition system for substation.