绞吸式挖泥船电力驱动系统建模与仿真研究  

The Modeling and Simulation Research on the Electric Drive System of Cutter Suction Dredger

作　　者：胡佳 高岚 范世东 司宇航 刘恩东 

机构地区：[1]武汉理工大学船舶动力工程技术交通行业重点实验室,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2017年第5期875-880,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目资助(51179144)

摘　　要：为了研究直接转矩控制(DTC)调速策略在电力驱动绞吸式挖泥船上的适用性,基于饱和沙二维切削理论建立绞刀切削模型,基于泥泵特性及管道流体力学理论建立泥浆输送系统模型,在此基础上基于异步电动机数学模型和直接转矩控制理论建立绞刀和泥泵电力驱动系统模型.根据施工实际建立仿真模型并基于典型工况对直接转矩控制系统进行仿真实验,分析绞吸式挖泥船在典型工况下驱动系统的调速性能和船舶电站的稳定性.仿真结果表明,直接转矩控制系统具有良好的调速性能,同时能保持电力系统的稳定性,在绞吸式挖泥船疏浚设备驱动系统中有良好的适用性.To study the applicability of direct torque control（DTC）strategy in electric drive cutter suction dredger,a cutting model of the cutter based on saturated sand two-dimensional cutting theory and a mud transporting model based on mud pump characteristic and pipeline fluid mechanics theory are established,respectively.Based on the mathematical model of asynchronous motor and direct torque control theory,the cutter and mud pump electric drive system model is established.According to the construction practice,the simulation model is built and simulation experiment is carried out on the DTC system based on typical conditions.The speed performance of electric-drive system and stability of the power station has also been analyzed.The results show that the DTC system has a good speed performance and can maintain the stability of the power system.It＇s applicable on the driving system of the dredging equipment of the cutter suction dredger.

关 键 词：绞吸式挖泥船 电力驱动 绞刀和泥泵 直接转矩控制 

分 类 号：U664[交通运输工程—船舶及航道工程]