Effect of motor drives on electromagnetic noise of accelerator facility

This paper investigates the effect of electromagnetic noise on beam pipe when the motor drivers are mounted to the accelerator facility. The procedure involves requirement analysis of electromagnetic noise for sensitive devices in accelerator beam pipe, the principle and performance of motor drivers are then analyzed, and interconnection between motor drivers and beam pipe are considered, thereby analyzing the effect that motor drives may have on electromagnetic noise from sensitive devices of beam pipe. Finally, it is verified that motor drivers have certain influence on beam diagnostics and terminal research from the test data and practical problems. this work provides effective support for the electromagnetic interference analysis and electromagnetic compatibility design of accelerator facility.