The Application Of Pwm Technology In Ac-drive Electric Locomotive

The world is high-speed rail, heavy direction, speed up the development of electrified railway.Rapid development of China's electric locomotive technology has, in the wake of the transformation of existing railway lines and construction of the passenger lanes.China has independently developed the high-power alternating electric locomotive of world standard in China has driven the railway line.This paper describes the application of high-power alternating electric locomotive in the PWM converter theory and designPWM converter performance combined with the basic theory of PWM, PWM converter principle.diode rectifier circuit, phase rectifier circuit.Meanwhile, the high power AC drive locomotive design and manufacture of the PWM converter, a matching transformer.Electric Transmission program design for a study aimed at the exchange of certain auxiliary transmission system tests.Given China's railway development, "Heavy Duty" trend and demand more obvious each day.railway transport capacity and increasing demand contradictions, the adhesive power utilization, wide speed range, low maintenance.entire life cycle of low costs and high reliability, Energy Saving AC electric locomotives will be able to meet its requirements.PWM converter in the successful application of AC electric locomotive and improve the network side of the locomotive power factor.reduce the harmonic content.Electric locomotives to the design of the system and new ideas.