05 - Propulsion and Energy
AN OPTIMAL POWER MANAGEMENT POLICY FOR HYDROGEN BASED HYBRID AERO ENGINES
F. Pak¹, U. Perra¹, F. Willems¹, T. Hofman¹, M. Salazar¹; ¹Eindhoven University of Technology, Netherlands
In this study we develop an analytical power management policy for a hydrogen hybrid aero engine combining a gas turbine and a solid oxide fuel cell. We use steady-state thermodynamic data to identify convex and concave surrogate models of key subsystem variables through curvature constrained quadratic programming. These models enable the formulation of a partially convex fuel minimization problem, which is later solved analytically using Karush-Kuhn-Tucker conditions and partial convexity and monotonicity model properties. The resulting closed-form policy allows real time optimal power management for each of the flight phases, take off, top of climb and cruise, while respecting operational and thermal constraints. Validation against a high fidelity nonlinear model shows an agreement across take off, climb, and cruise with less than 1.5% normalized root mean square error, demonstrating that the simplified models retain sufficient accuracy for supervisory power management policy.
DOI: 10.71945/icas2026_0954