【作者】 林安平；

【导师】 刘彦呈； 赵友涛；

【作者基本信息】 大连海事大学 ， 轮机工程， 2007， 硕士

【摘要】 近几十年来，随着电力电子技术的发展和大功率交流电机变频调速技术的日趋成熟，船舶电力推进逐渐显示出其优越性，成为未来船舶动力装置的发展方向。目前国内对船舶电力推进系统的研究还处于起步阶段，深入研究船舶电力推进系统的建模和仿真，可以促进我国船舶电力推进系统研究的快速发展。 本文以烟大轮渡渡船为对象，首先研究了船舶阻力计算、螺旋桨推力特性和扭矩特性，以Simulink软件为工具，利用RBF神经网络的泛化功能，建立了船舶阻力模型、螺旋桨推力特性模型和螺旋桨扭矩特性模型，在此基础之上，建立了船体模型和螺旋桨模型。其次分析了永磁同步电机数学模型和SVPWM技术，建立了SVPWM仿真模块，并将其应用于永磁同步电机矢量控制系统仿真，分析了基于SVPWM矢量控制系统的动态和静态调速性能。本文还提出了一种模糊自整定PI控制算法，这种模糊自整定PI控制以转速偏差和转速偏差变化为输入，可以动态地调整积分系数。将这种模糊自整定PI控制算法应用于永磁同步电机矢量控制仿真系统，在一定程度上提高了系统的动态和静态性能。最后将船体模型、螺旋桨模型、永磁同步电机矢量控制模型结合起来，建立了烟大轮渡渡船的电力推进仿真系统，模拟了渡船从静止加速到全航速的动态过程。此仿真系统具有通用性，只要修改船体模型、螺旋桨模型和永磁同步电机矢量控制模型的参数，就可以对其它船舶电力推进系统进行仿真。 仿真是分析和设计船舶电力推进系统的基础，在设计电力推进系统的初始阶段，可以利用仿真数据来选择推进电机的型号和设计推进电机调速系统，缩短电力推进系统的设计周期，降低设计成本。更多还原

【Abstract】 In recent decades, with the development of power electronic and the increasingly maturation of high-power AC motor frequency control technology, the ship electric propulsion becomes the development trend of future ship power plant because of its multiple advantages. At present, the research of ship electric propulsion system is still at the starting stage in China. Therefore through thoroughly studying of the ship electric propulsion modeling and simulation can accelerate the development of the research for ship electric propulsion system.This paper took the ferryboat of "Yan-Da Ferry" as the object. First, the ship hull model and the propeller model were established by the generalization function of RBF neural network. To construct these models, the computation of ship resistance, the propeller thrust characteristic and the propeller torque characteristic were studied. Second, the permanent magnet synchronous machine (PMSM) vector control simulation model was constructed, and its dynamic and static performance was analyzed. The PMSM mathematical model was analyzed; the SVPWM simulation module was constructed and applied to the vector control simulation system. Third, a kind of self adjusting fuzzy PI control algorithm was proposed. This algorithm takes the rotational speed deviation and the rotational speed deviation change as the inputs, it can adjusting the integral coefficient dynamically. Appling this algorithm to the PMSM vector control simulation system can improve the system’s static and dynamic performance to some extent. In the end, this paper established the electric propulsion simulation system of "Yan-Da Ferry" ferryboat and simulated the dynamic accelerating process of ferryboat from the static to the full speed. The ship hull model, the propeller model and the PMSM vector control model were united in the simulation of the electric propulsion.更多还原