Flying V Robust Controller Design
Design of a C* Longitudinal Flight Controller using H infinity - Loop Shaping Techniques
J. Thornton (TU Delft - Aerospace Engineering)
Spilios Theodoulis – Mentor (TU Delft - Aerospace Engineering)
X. Wang – Mentor (TU Delft - Aerospace Engineering)
C. Borst – Mentor (TU Delft - Aerospace Engineering)
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Abstract
Climate change is increasingly influencing the aviation industry, motivating novel aircraft concepts such as the Flying V. However, unconventional configurations introduce new challenges in stability, control, and handling qualities. Additionally, aerodynamic model uncertainties and limited research on robust control for the Flying V highlight need for improved flight control systems. This study advances the conceptual maturity of the Flying V by developing a H∞ loop-shaping C* longitudinal controller designed to ensure robust stability and performance under aerodynamic uncertainty and input/output disturbances while targeting Level 1 handling qualities. The Flying V model is implemented in MATLAB/Simulink, before a one-degree-of-freedom (1DOF) controller is designed. This is extended to a two-degree-of-freedom (2DOF) architecture incorporating parametric uncertainty and multi-model synthesis to maintain stability across the flight envelope. The 2DOF controller improves tracking and maintains good disturbance rejection while largely meeting Level 1 handling quality requirements and maintaining robust stability over many test case simulations.