Authors : Vijay Gajanan Neve and Gajanan M. Dhole
Page Nos : 34-40
Description :
To improve power quality with adequate solutions, it is necessary to know what kinds of disturbances occurred. A measurement system must be able to automatically detect, characterize or classify disturbances and for mitigation. This paper investigates mitigation techniques for voltage sag in on line conditions with different defined firing angles. The results of investigations are presented. The focused area is the online voltage sag mitigation is carried out on a tailor made experimental set up using the various topologies of SVC and booster transformer. The Comparative analysis and these devices are presented. In this paper introduces the various topologies for mitigation of voltage sag. Here the main objective is to mitigate the voltage sag in real time with the use of different topologies of static var compensators with various defined firing angles. Under the Static var Compensator various combinations of inductor, capacitor and triac are used and results are discussed and compared. For static var compensator and booster transformer, the comprehensive results are presented to assess the performance of each device to mitigate the voltage sag. The switching events like change of transformer taps, starting of induction motor are used to create the voltage sag. These events are controlled through FPGA based algorithm.
Keywords – Static Var Compensator, Booster Transformer, Voltage sag, Fuzzy Logic, Firing Angle.
