A study on noise control methods for high-speed train traction motors based on sound quality
In response to the increasing demands for passenger comfort on high-speed trains,this paper investigates control meth-ods and standards for electromagnetic noise generated by traction motors.The initial analysis examined the noise characteristics of trac-tion motor sources under the power supply by converters,as well as those inside high-speed trains from the perspective of sound quality.This effort identified key areas for motor noise control.Subsequently,by combining the sound insulation properties of car bodies and the characteristics of sound sources,specific noise control targets were established for motor sources,including two aspects:sound pressure levels(SPL)and differences in one-third octave bands.Furthermore,the effectiveness of the proposed noise control methods was verified through practical applications in specific cases.These methods have significantly improved the subjective listening experience of passen-gers,while meeting the requirements for interior noise levels of car bodies.The study outcomes not only provide effective means for elec-tromagnetic noise control in high-speed trains but also serve as an important reference for improving the operational comfort of rail tran-sit.
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维普
