Study For Real-time Optimization Control And Hardware Platform Based On Integrated Helicopter/Turboshaft Engine System

Currently, integrated helicopter/turboshaft-engine control and optimization are the developingtrend of next generation control system for advanced helicopter.How to improve the maneuverabilityand aglity of the helicopter under the premise of helicopter flight safety and stability, how to improvethe response of turboshaft-engine transient power and the disturbance rejection ablity of power turbinespeed from the prospect of engine, and how to exploit the performance potential of the engine havebecome crucial problem in the research of integrated control system. The purpose of this thesis is tostudy the issue of integrated helicopter/turboshaft-engine control and optimization, and this thesiscontain two main parts:integrated control and real-time optimization.Variable rotor speed control and turbine bleed control based on integrated helicopter/enginesystem are studied. A sequential shifting algorithm is proposed for changing the helicopter rotor’sspeed in a large variation and providing continuous output power to the rotor. In the process ofshifting, design the robust H₂/H_∞controller based on LMI algorithm combined with ADRC torquefeed forward compensation for the problem of turbo-shaft engine’s torque disturbance. Somenumerical simulations are carried out to verify the feasibility of the shifting algorithm, based on theintegrated helicopter/engine model. And another a new method as the core of turbine bleed control isreleased for the rapid response of the turbo-shaft engine’s transient power in maneuver flight. Anintegrated helicopter’s vertical flying channel/turbo-shaft engine controller based on the turbine bleedcontrol is designed for demonstration, which using the multi-variable robust guaranteed cost controllaw.,and some simulations for this method are also tested.Turboshaft-engine/rotor simplified model and real-time optimization and control platform arestudied for real-time optimization. A turboshaft-engine/rotor simplified model is established throughneural network mapping module，so as to enhance the optimization realtime of performance seekingcontrol for the integrated helicopter/engine system. Then a turboshaft-engine real-time optimizationand control platform is designed by TMS320F2812and OMAP-L137DSP micro-computers.Multi-mode optimization control including turboshaft-engine minimum fuel-consumption, maximumshaftpower, minimum turbine temperature and variable rotor speed are simulated based on theplatform and simplified model. At last, the simulation platform of integrated helicopter/engine controlsystem is introduced. Some semi-physical simulations are carried out for the integratedhelicopter/engine model and multi-mode optimization control based on this platform.