Experimental Research Noise Characteristics of Filter Capacitors in UHV DC Converter Stations
The space demanded by filter capacitor installations and capacitor installations for reactive power compensation is bigger than that of any other equipment in UHV DC converter stations.So the noise emission of them has great effect on UHV DC converter stations.These capacitor installations with large sizes and high voltages consist of a large quantity of capacitor units.Because of these characteristics,it's very difficult to reduce the noise level of these capacitor installations with external passive measures.So,internal improvement is more suitable for capacitor installations noise reduction.And the noise characteristics must be studied comprehensively before modifying the structure of capacitors for noise reduction.Audible noise characteristics generated by power capacitors subjected to different waveforms are studied by experiments,and the results are analyzed for reference of noise reduction of capacitor with internal methods.
UHVDCfilter capacitornoisesound pressure levelsound power levelfrequencyharmonic
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