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سال انتشار: 1391
محل انتشار: بیستمین کنفرانس مهندسی برق ایران
تعداد صفحات: 6
چکیده:
In this paper it is tried to damp the power swings by using UPFC. The presented control methods in this paper are very simple and fast. The first control algorithm is based onenergy and equivalent energy criterion that works only at the presence of disturbance. The second one is adding an activedamper to the system and affecting on the system damping. In this algorithm in order to increase the damping of a system a function is defined according to the feedback of electrical angleof the machine. This function is used to determine the angle in which a proper damping is added to the system. This angle canbe set as the reference and by using the angle compensation mode, the voltage injection is done in that angle. In thisalgorithm by using an angle feedback it doesn’t need to exchange a lot of information which is used in other algorithms. Finally the power swing is observed in the simulation byselecting a power flow model for UPFC. These results are compared with a situation in which the UPFC is placed in thepower system by applying the suggested control algorithms on it. The comparison shows that the damping of power swing while using the second algorithm is much more and much effective on system damping.
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