摘要
变频器供电的船舶推进系统在其制动过程中,由于受螺旋桨工作特性的影响,推进电机会向变频调速装置馈能,进而易引起调速装置因过电压而烧毁.在分析了螺旋桨水动力特性和推进电机机械特性的基础上,研究了船舶制动过程中回馈能量的机理,计算了推进系统制动过程向调速装置回馈的能量,设计了消耗回馈能量的斩波制动电路,并对1MW,12相同步推进系统的制动过程进行了仿真和实验分析.理论分析结果得到了实验验证.
During the brake process of the converter powered ship propulsion system, the propulsion motor will feedback energy to the converter for the propeller characteristic, which would cause the converter burned because of over-voltage. In this paper, the principle of energy feedback during the brake process of the ship is analyzed based on the hydrodynamics of propeller and mechanical characteristic of motor. The energy feedback from propulsion system to converter is computed; the chopper brake circuit that is used to consume the feedback energy is designed, and the brake process of 1MW twelvephase synchronous propulsion system is simulated and tested. The theoretical analysis results are confirmed by the experiment.
出处
《武汉理工大学学报（交通科学与工程版）》
2009年第5期864-867,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金委员会创新研究群体科学基金项目资助(批准号:50421703)
关键词
螺旋桨
制动过程
馈能
斩波制动
propeller
brake process
feedback energy
chopper brake
