The nonlinear and coupling characteristics of aircraft across the flight envelope arouse intense research on dynamic inverse (DI) control because of its benefits of decoupling and simplicity in design. But the application of DI control law is limited by its highly dependency of model. So it is essential to evaluate the robustness of the DI control law before application. This paper searches for the situation of the worst robust stability by analyzing the poles distribution of the DI control system. Then the control system is simulated under the worst situation to evaluate the time domain and frequency domain robust performances of the control system. The simulation results show that the evaluation method proposed in this paper can find out the worst robustness situation quickly, which facilitates the process of robustness evaluation for DI control law and warrants the application of DI control law.
The robustness evaluation method based on the worst situation for dynamic inverse control law
2014-08-01
189155 byte
Conference paper
Electronic Resource
English
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