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.
关键词
4阶电力系统/混沌振荡/自适应协同控制/储能装置/快速收敛
Key words
Four-dimensional power systems/Chaotic oscillations/Adaptive cooperative control/Energy storage devices/Fast convergence
维普
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