涡桨发动机二自由度μ综合控制  

Two degree of freedomμsynthesis control for turboprop engine

作　　者：王曦[1] WANG Xi(School of Energy and Power Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《推进技术》2025年第3期191-203,共13页Journal of Propulsion Technology

摘　　要：针对涡桨发动机主燃油控制单元和桨叶角控制单元构成的双回路控制系统,提出了二自由度控制的架构,采用结构化奇异值μ综合控制,将涡桨发动机的主燃油控制和桨叶角控制进行融合,实现了主燃油控制和桨叶角控制之间内部干扰的动态解耦以及飞行条件下的抗外部干扰性能。在涡桨发动机非线性模型仿真平台上进行了全包线加减速过渡态、稳态仿真。结果表明,二自由度双回路μ综合控制具有涡桨发动机主燃油控制回路和桨叶角控制回路的内部干扰解耦抑制和飞行条件变化的外部干扰抑制性能,回路之间内部干扰动态解耦时间不大于2 s,飞行高度在0~8 km变化、飞行马赫数在0~0.5变化,燃气涡轮转速n_(g)最大相对误差0.11%,动力涡轮转速n_(p)最大相对误差1.4%。A two degree of freedom control architecture is proposed for a dual loop control system consisting of the main fuel control unit and blade angle control unit of a turboprop engine.Structured singular valueμsynthe⁃sis control is adopted to integrate the main fuel control and blade angle control of the turboprop engine,achieving dynamic decoupling of internal interference between the main fuel control and blade angle control,as well as ex⁃ternal interference resistance under flight conditions.The full envelope acceleration and deceleration transition state and steady-state simulation were conducted on the nonlinear model simulation platform of a turboprop en⁃gine.The results showed that the two degree of freedom dual loopμsynthesis control has the ability to decouple and suppress internal interference in the main fuel control loop and blade angle control loop of the turboprop en⁃gine,as well as external interference suppression performance in flight condition changes.The dynamic decou⁃pling time of internal interference between dual loop is not more than 2 s.The flight altitude varies from 0 to 8 km and the flight Mach number varies from 0 to 0.5.The maximum relative error of n_(g)(rotating speed of gas turbine)is 0.11%and the maximum relative error of n_(p)(rotating speed of power turbine)is 1.4%.

关 键 词：涡桨发动机 Μ综合控制 二自由度双回路 主燃油控制 桨叶角控制 动态解耦 

分 类 号：V233.759[航空宇航科学与技术—航空宇航推进理论与工程]