为了使国产某型双燃料燃气轮机具备实时可靠的天然气-燃油双向燃料切换，需要制定出适用于燃机燃料切换的控制逻辑。通过MATLAB Simulink软件对双燃料燃机油-气切换与气-油切换过程进行了数值仿真。结果表明：所提出的燃料切换控制逻辑能够满足燃机0.85工况运行时在60 s以内实现双燃料切换，且燃烧过程可控的性能指标要求。

In order to realize realtime and reliable fuel switching between natural gas and diesel on a domestic dualfuel gas turbine,it is necessary to develop a suitable control logic for the fuel switching.In this paper,the process of oilgas switching and gasoil switching of dualfuel engine has been carried out by the MATLAB Simulink simulation software.The simulation results show that the control logic selected in this paper meets the performance requirements of dualfuel gas engine operating under 0.85 operating conditions: switching time less than 60 seconds and providing a controllable combustion process.