Study On Diesel Locomotive AC Transmission System

The high power diesel locomotive is important to the development of railway transmission,Along with the AC-drive technique develops and popularizes,The AC-drive technique have been used in drive system of new-type diesel locomotive,So studying on diesel locomotive AC-drive system is important for raising the level of the railway equipment manufacture.This paper mainly refers to the research and analysis on the aspects of AC transmission technology and relevant control technology be used on locomotive in recent years. Using AC-drive technique to diesel locomotive AC-drive system, The AC drive system in terms of performance index, design optimization, equipment maintain or even energy-saving, environmental protection are reflected in a huge advantage. This article aims to combine HXN3 AC drive diesel locomotive, The power distribution and drive form and control mode and the like of the interior systems in the locomotive has been analyzed.Combined with the performance of locomotives, Described the method of the vector control, the PWM control, locomotive drive control,auxiliary transmission control,the microprocessor network control and the adhesion control used in the locomotive electric transmission are expatiated with the needs of the locomotive performance. And the selection and match of the motor used in the high power diesel locomotive, the arrangement design of the electric drive, and the influence resulted from the application of the PWM control technique in the AC induction motor and electromagnetic compatibility is investigated. The system test of the auxiliary drive system has been carried out, which expresses very well.AC transmission technology covers the theories and technologies in several fields.The purpose of this study is use on advanced drive control technology in diesel,Enhance the locomotive drive system performance under the high reliability and economy.