DYNAMIC COMPENSATOR DESIGN IN NONLINEAR AEROSPACE SYSTEMS

Based on recently developed differential algebraic results, dynamic co ntrollers are proposed for the feedback regulation of typical aerospac e systems. Fliess' generalized observability canonical form (GOCF) is used for specifying a dynamic compensator that smoothly regulates the plant dynamics. The synthesis approach is also applicable to the desig n of nonlinear pulsewidth-modulation (PWM) controllers, as well as to sliding mode control strategies. The three underlying nonlinear contro l techniques, explored with the aid of illustrative examples, are comm only encountered in aerospace control system design problems. Simulati ons are also included.