Hypersonic aircraft trajectory tracking control method for performance recovery
A hypersonic, control method technology, applied in vehicle position/route/altitude control, non-electric variable control, control/regulation system, etc., can solve the problem of engine stall, scramjet propulsion performance degradation, scramjet work Narrow corridors, etc.
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[0077] In this embodiment, in order to solve the problem that the working corridor of the scramjet engine is relatively narrow, relatively strict air intake conditions are required to support stable propulsion performance, and too low speed and too large angle of attack will reduce the propulsion performance of the scramjet engine. Even cause the engine to stall. If the scramjet engine is stalled due to aircraft stall, the hypersonic vehicle will not be able to recover its performance autonomously. A trajectory tracking control method for hypersonic vehicle oriented to performance recovery is proposed. Based on the working conditions of the supersonic vehicle engine, the lower limit of its flight speed within the reasonable range of angle of attack is obtained; then, with the lower limit of the speed as a constraint, the logarithmic barrier function is used instead of the general quadratic function to design the Lyapunov function, and the realization of the function with Veloci...
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