基于AHP法的拖轮推进动力系统多方案评估

Multi-Program Evaluation of the Tug Propulsion Power System Based on AHP

针对拖轮工况多且复杂,船体结构小,空间紧凑及多在港口内低速运行等特点,从环保节能角度出发,提出不同的推进动力系统设计方案。利用自主研发的基于AHP算法的多方案评估软件对方案进行评估,最终优选出合适的推进动力系统方案。该方案采用可逆轴带电机布置在高速推进轴上的柴电混合动力系统,使拖轮在各种作业模式下均处于经济运行状态,相比传统拖轮主推进柴油机装机功率减小约20%,大幅提升了综合能效。

In view of the characteristics of tugs,including complex operating condition,small hull structure,compact space and low speed operation at the port,from the environmental protection and energy saving point of view,different design programs of the propulsion power system are put forward.With the use of self-developed multi-program evaluation software based on the AHP algorithm,the different design programs were evaluated,and the appropriate propulsion power system design was determined.In this design,the diesel-electric hybrid system is arranged on the high-speed propulsion shaft by the reversible shaft motor,so that the tug could realize economic operation under various operating modes.Compared with the main diesel engines of traditional tugs,the installed power is reduced by about20%.The comprehensive energy efficiency increases significantly.