摘要
为了解决退化程度不同而导致的双发推力不匹配问题,首先介绍基于发动机性能退化缓解控制的双发推力匹配控制系统(在发动机基准控制系统的基础上添加外围控制回路实现对推力的间接控制,并通过设定双发共同遵循的期望推力减少由于发动机退化程度不同造成的双发推力差异),之后对该系统所涉及的推力设定、参数估计、转速指令修正等关键技术进行研究,最后在MATLAB/Simulink环境下进行仿真验证,结果表明:该系统可以在发动机参数限制范围内合理地设定双发共同遵循的期望推力,减少推力差异,满足自动协调双发推力匹配的设计要求。
Research of thrust asymmetry compensation control system based on turbofan engine performance de- terioration mitigating control（EPDMC） technology is conducted in order to solve twin engine thrust asymmetry due to different degree of deterioration. An outer thrust loop based on nominal control system is investigated, which manipulates thrust indirectly and minimizes thrust asymmetry through setting expected thrust followed by twin engine. Then key technology including thrust setting, parameter estimation and speed command modifica- tion is introduced. Simulation performed under MATLAB/Simulink conditions indicates the control system mentioned above could minimize thrust asymmetry under limits of engine parameters through setting expected thrust followed by twin engine, which meets the design requirement of automatic thrust synchronization.
出处
《航空工程进展》
CSCD
2015年第1期64-70,共7页
Advances in Aeronautical Science and Engineering
基金
航空科学基金(2011ZB53)
高超声速冲压发动机重点实验室资助项目
关键词
双发
性能退化缓解控制技术
推力匹配控制
推力设定
参数估计
转速指令修正
twin engine
EPDMC
thrust asymmetry compensation control
thrust setting
parameter estima- tion
speed command modification
