基于DEH技术的舰船汽发机组控制系统改装设计

Upgrade of Marine Steam Turbine Generator Set Control System with the DEH Technology

对大型船舶,尤其是大型水面舰艇而言,汽轮发电机组是其电网中不可或缺的组成部分,而我国20世纪引进的以汽轮发电机组供电的大型船舶中,许多汽轮发电机组的电气部分已严重老化,导致故障频发。同时,原有监控装置采用的是由分立元件组成的模拟式电气液压控制器,可靠性和可维修性差。针对上述问题,依托某型船汽轮发电机组改换装项目,对汽轮发电机组控制设备的改装进行研究。设计新型数字式电气液压控制器,实现对原有控制器的整体替换。为验证新研控制器的性能和可靠性,研究改装汽轮发电机组的模型,建立硬件在环实时仿真系统。仿真结果表明,新研控制器可很好地实现对汽轮发电机组的控制功能。

For large ships,especially for large naval vessels,steam turbine generator set is one of the fundamental components of the ship power system.Last century,a large number of turbine-generator set were imported to China.Because of years of service,seriously ageing of electrical parts of these turbine-generator sets leads to frequent malfunctions.Because the original monitoring system uses analog electric-hydraulic design with discrete components,its reliability and maintainability is poor.To solve the problems,a new digital electro-hydraulic controller for replacing the original analogue controller is developed as a part of the power station modification project for one of the imported ships.In order to verify the performance and reliability of the new controller,a mathematic model of the steam turbine generator set is built,and a hardware-in-the-loop real-time simulation system is constructed.The simulation results show that the newly developed controller can well achieve the control function of the steam turbine generator set.