ZHANG SONGYANG, ZHU LINGYU, JI SHENGCHANG, et al. Noise Predicting Method of Dry-type Air-core Reactor Based on the Frequency-response Function. [J]. Power capacitor & reactive power compensation, 2020, 41(6): 71-77.
ZHANG SONGYANG, ZHU LINGYU, JI SHENGCHANG, et al. Noise Predicting Method of Dry-type Air-core Reactor Based on the Frequency-response Function. [J]. Power capacitor & reactive power compensation, 2020, 41(6): 71-77. DOI: 10.14044/j.1674-1757.pcrpc.2020.06.011.
Filter reactor is one of the main sources of noise in converter station.In this paper
the noise characteristics of dry-type air-core reactor under harmonic excitation are studied by multi-frequency composite loading experiment
and a noise estimation method based on frequency response function is proposed.The results show that the main noise frequency components of the dry reactor are two times of the current frequency and the difference frequency and sum frequency of each other.The physical process of the radiated noise of the reactor subjected to electromagnetic force can be regarded as a linear system.On this basis
the noise estimation method of dry-type air-core reactor based on frequency response function is proposed and verified by experiments.The results show that the sound power error is small and the average sound power level error is 0.2 dB.