Synthesis of Helicopter Fuzzy Flight Control System and Its Simulation

This paper describes the research project from National Key Laboratory of Rotorcraft Aeromechanics on an unmanned helicopter control. A design for helicopter fight control system is proposed. As a means of the design, the traditional model-based control and the adaptive fuzzy logic control are integrated to realize the decoupling helicopter motions, the stability of the flight control system and the multi-mode flight. A method of helicopter inner loop attitude control and outer loop path tracking control is studied. A fuzzy attitude inner loop control system is established through a combination of expert knowledge and training data, and outer loop path control is design based on inner loop control system by means of traditional control technology. At the same time, an online adaptive fuzzy controller is presented to improve the inner-loop control accuracy. Adaptive control laws are gained with Lyapunov stability analysis. Based on the good quality of inner loop controller, the outer loop path control system is realized. To check for the performance of the control system, the maneuver flight simulation is carried out, and numeric simulation results demonstrate the validity of the system.