基于Hamilton函数方法的船舶发电机组综合协调控制

Integrated coordination control of marine generators based on Hamilton function approach

推进负载对船舶电网的暂态稳定性影响是船电系统的主要特征之一,船舶电力系统的稳定性研究也因此比陆上电力系统更具有挑战性.本文基于Hamilton能量理论控制方法,研究了具有螺旋桨推进负载的船舶电力系统的励磁与调速的综合协调控制问题.在充分分析了柴油发电机组及其螺旋桨负载的非线性耦合模型的结构基础上,通过构造Hamilton能量函数,给出保持系统稳定的综合协调控制律.特别地,不同于已有的结果,该控制律清晰地给出了螺旋桨转速对控制器性能影响的函数关系.仿真表明,在分别给系统突加螺旋桨负载的情况下,该控制器能有效地抑制负载对系统性能的影响,验证了控制器的鲁棒性.

The propeller load is a crucial factor affecting the transient stability of the marine power system.This makes the stability study of marine power system more challenging than that of the land power systems.Based on Hamilton control theory of energy,an integrated coordination control of generator excitation and speed regulation is investigated for the marine power systems with propeller loads.After analyzing the nonlinear coupling between the marine diesel generator and the propeller load,we develop the stabilizing integrated control law by constructing the Hamilton energy function.Being different from other existing control laws,this one explicitly provides the functional relation between the propeller revolution and control performances.Simulation results show the effective suppression of the impact from the propeller load to the system performance.