中小型玻璃钢休闲渔船电力推进系统的仿真设计

Simulation design of electric propulsion system for small and medium-sized FRP recreational fishing boats

针对目前中国休闲渔船多为柴油驱动动力,能源利用效率低,资源浪费严重,还存在着一定的环境污染问题。以中小型玻璃钢休闲渔船作为研究对象,将磷酸铁锂电池作为渔船的动力源,选用主控芯片为S32K144的单片机构建该船的电池管理系统对电池组进行管理,利用DC/DC控制器对电池充放电进行控制实现电压的稳定,采用SVPWM作为电力推进系统的控制策略,提高系统的稳定性和抗干扰能力。通过模块工具箱完成电池管理系统、电池控制系统及电力推进控制系统的建模,并将各系统连接,完成电力推进系统的建模,利用Matlab/Simulink软件对系统模型进行仿真试验。结果显示,电力推进系统在负载不变时能够稳定运行,在负载发生突变时能够迅速作出反应并恢复稳定,验证了模型的可行性。研究结果对中小型电动玻璃钢休闲渔船及电动船舶的应用具有一定的参考价值。

At present,domestic recreational fishing boats are mostly powered by diesel fuel,with low energy utilization efficiency,serious waste of resources,and some environmental pollution problems.In this paper,lithium iron phosphate batteries were used as the power source of small and medium-sized FRP recreational fishing boats,SCM with the main control chip of S32 K144 was used to build the boats’battery management system to manage the battery pack,DC/DC controller was used to control the battery charge and discharge to achieve voltage stability,and SVPWM was used as the control strategy of the electric propulsion system to improve the stability of the system and anti-jamming capacity.Through the module toolbox,the modeling of battery management system,battery control system and electric propulsion control system was completed,the electric propulsion system was modeled by connecting each system,and the system model was simulated by Matlab/Simulink.The results show that the electric propulsion system can operate steadily when the load is constant,and react quickly and restore stability when the load changes,which verifies the feasibility of the model.The results of the study have certain reference value for the application of small and medium-sized electric FRP recreational fishing boats and electric ships.