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This paper proposes the experimental study of a novel method of Backstepping Active Disturbance Rejection Controller of helicopter, which estimates and compensates the environmental disturbances and nonlinear aerodynamic forces in real time with little reliance on accurate system model. A reduced-order controller is designed and applied in flight tests. The attitude tracking and disturbance rejection...
This paper presents a method to compute unstable equilibrium points on the transient stability boundary of power systems with detailed generator modeling. According to the stability region theory of nonlinear dynamic systems, relations of unstable equilibrium points on different stability region boundaries in periodic nonlinear dynamic systems are deduced. It is proved that, when all loads are modeled...
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