Chaotic Power System Control Based on Improved Adaptive Synergetic Control Method
An adaptive cooperative control scheme with fast convergence characteristics is proposed for a four-dimensional chaotic power system. Firstly, based on the Lyapunov stability theorem and global fast convergence theory, a cooperative controller with fast convergence property is designed. The controller can make the macro variables reach the invariant manifold quickly and can obtain smooth and chatter-free control inputs to achieve the exact convergence of macro variables. The designed controller is then applied to the chaotic control of a four-dimensional power system. Since excess energy in the power system can cause chaotic oscillations, an energy storage device is introduced in the control loop. The chaotic oscillations are suppressed by making the energy storage device to absorb the excess active power in the power system. The complex terms that appear in the controller design process are eliminated through the adaptive law, so the practicality of the controller is increased. Finally, the effectiveness and superiority of the control method are verified by numerical simulation.
Four-dimensional power systemsChaotic oscillationsAdaptive cooperative controlEnergy storage devicesFast convergence