基于PI控制的内燃动车组柴油机恒功率控制技术  

Constant Power Control of Diesels in DMU Based on PI Control

作　　者：周杨 董宇康 ZHOU Yang;DONG Yukang(Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]株洲中车时代电气股份有限公司,湖南株洲412001

出　　处：《控制与信息技术》2024年第1期46-51,共6页CONTROL AND INFORMATION TECHNOLOGY

摘　　要：柴油机在非恒功率输出时,不仅燃料效率低,而且可能会产生较大的机械应力,导致机械部件的磨损和破坏。为确保内燃动车组柴油机高效运行,基于内燃动车组柴油发电机组恒功率输出的运行模式,文章提出了一种比例-积分控制方法,实现了负载侧牵引系统功率稳定跟随柴油发电机组的输出功率目标值,通过负载侧恒功率运行保障发电机组的恒功率稳定输出,从而提高柴油机燃油经济性。经过仿真及试验测试验证,采用此控制方法,负载功率稳态波动在±2%以内,实现了内燃动车组柴油机恒功率运行及负载功率对目标值的实时跟随。When a diesel engine operates at non constant power output,it not only has low fuel efficiency but may also generate significant mechanical stress,leading to wear and damage of mechanical components.In order to ensure the efficient operation of diesels within diesel multiple units(DMU),this paper proposes a proportional-integral(PI)control approach based on the operational mode of the diesel generator sets featuring constant power output.This method was devised to steadily synchronize power of the traction systems on the load side with the target output power of the diesel generator sets.In turn,constant power operation on the load side guarantees a constant power output from the generator sets,thereby improving the fuel economy of the diesels.Through simulation and experimental tests,steady state fluctuations in load power were maintained within±2%,demonstrating the effective constant power operation and the real-time alignment of load power with the target value.

关 键 词：内燃动车组 恒功率控制 比例-积分控制 柴油机 功率分配 牵引系统 

分 类 号：U266.1[机械工程—车辆工程]