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A New hybrid control Scheme for an Integrated helicopter and engine System

Chinese Journal of Aeronautics 2012年第4期25卷 533-545页

作者： ZHANG Haibo WANG Jiankang CHEN Guoqiang YAN Changkai College of Energy and Power engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China

A new hybrid control scheme is presented with a robust multiple model fusion control（RMMFC） law for a UH-60 helicopter and an active disturbance rejection control（ADRC） controller for its *** scheme is a control design method with every subsystem designed separately but fully considering the couplings between *** three subspaces with respect to forward flight velocity,a RMMFC is proposed to devise a four-loop reference signal tracing control for the helicopter,which escapes the closed-loop system from unstable state due to the extreme complexity of this integrated nonlinear *** engines are controlled by the proposed ADRC decoupling controller,which fully takes advantage of a good compensation ability for unmodeled dynamics and extra disturbances,so as to compensate torque disturbance in power turbine speed *** simulating a forward acceleration flight task,the RMMFC for the helicopter is *** is apparent that the integrated helicopter and engine system（IHES） has much better dynamic performance under the new control *** in the switching process,the large transient is significantly weakened,and smooth transition among candidate controllers is *** the entire simulation task,the droop of power turbine speed with the proposed ADRC controller is significantly slighter than with the conventional pid controller,and the response time of the former is much faster than the *** simulating a rapid climb and descent flight task,the results also show the feasibility for the application of the proposed multiple model fusion *** there is aggressive power demand in this maneuver,the droop of power turbine speed with an ADRC controller is smaller than using a pid *** control performance for helicopter and engine is enhanced by adopting this hybrid control scheme,and simulation results in other envelope state give proofs of robustness for this new scheme.

关键词： helicopter engine hybrid control robust multiple model fusion control active disturbance rejection control pid control

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