综合电力推进邮轮动力系统负荷优化

Load Optimization of Integrated Electric Propulsion Cruise Power System

为研究综合全电力推进邮轮动力系统全航程范围内经济性最优的可行性方法,通过对综合全电力推进邮轮的柴油机发电机组的机组组合和推进负荷分配进行优化以提高邮轮航行的经济性。首先,将机组组合和负荷分配问题联系统一,形成整体的数学模型,然后基于问题模型开发混合优化算法求得最优输出功率组合,并通过理论计算对比验证顺序启动规则下和混合优化算法优化后启动规则下的发电机组发电成本。研究表明:针对不同负荷模式优化发电的机组组合能够降低邮轮发电机组的运行成本,最理想的原动机并车解列顺序应能按照船舶运行负载实时调整在网机组的数量与类型,通过与一代基因遗传算法相比较发现采用多算法混合的优化算法计算效果能够更加适应所建立的代价函数模型,采用所开发的混合优化方法能有效提高计算结果的准确性。

In order to study the feasibility method of the economic optimization of the power system of the integrated all electric propulsion cruise ship in the whole range,The unit combination and propulsion load distribution of the diesel generator set of the integrated all electric propulsion cruise ship is optimized,so as to improve the economy of the cruise ship navigation.Firstly,the unit commitment problem and load distribution problem are unified to form an overall mathematical model.Then,based on the problem model,a hybrid optimization algorithm is developed to obtain the optimal output power combination,and the generation cost under the sequential start rule and the hybrid optimization algorithm optimized start rule is verified by theoretical calculation.The results show that the optimal unit combination for different load modes can reduce the operation cost of cruise generating units,and the optimal sequence of prime mover parallel splitting should be able to adjust the number and type of units in the network in real time according to the ship’s operating load,Compared with the first generation genetic algorithm,it is found that the calculation effect of multi algorithm hybrid optimization algorithm can better adapt to the established cost function model,and the hybrid optimization method can effectively improve the accuracy of calculation results.