交流变频调速技术在船舶电力推进系统中的应用

本文介绍了电力推进系统的特点及其组成。探讨了船舶推进电机的发展趋势。目前用于电力推进的电机主要有直流电动机、同步电动机、鼠笼感应式电动机,根据各自的特点简要地介绍了它们的应用。船舶电力推进系统的核心是主推进电动机的调速控制系统,根据被控对象的不同,现代交流调速系统可分为异步电动机调速系统和同步电动机调速系统。综述了现代交流调速技术的几种典型控制方式在船舶电力推进中的应用。针对电机转矩的控制,比较了目前广泛应用的矢量控制与直接转矩控制的原理及应用。

Application of Modern AC Variable Speed in Marine Electric Propulsion

In this paper,the Characteristics and constitution of marine electric propulsion are introduced.We discuss the development direction of propulsion motor in ships.At present,there are mainly DC motor, Sychronous machine,Asychronous machine in electric propulsion.According to their own Characteristics,we briefly introduce their application.The core of electric propulsion system is variable speed system of propulsion motor.According to the different controlled objects,modern AC variable speed system can be sorted into two kinds Asychronous machine variable speed system and Sychronous machine variable speed system We discuss mainly some kinds of typical control methods of modern AC variable speed and their application in marine electric propulsion.Aiming at the control of motor torque,we compare the principle and application of vector control and DTC which are used widely at present.