Basin of Attraction and Controlling Chaos of Five-Synchronous-Generator Infinite-Bus System

The stability control of the five-synchronous-generator infinite-bus system is investigated by using the delayed feedback control method and superconducting magnetic energy storage. The stable or un-stable region is studied by using the basin of attraction. Time series of the phase angle and angular speed show the irregular motion and generators fall into the step-out. The power spectrum of the irregular motion is characteristic of the chaotic motion. By the condition of delayed feedback control with the gain of 20 and the delay time of 0.01 sec, phase angles and angular speeds are converged onto the equilibrium points and generators are controlled into the stable state