Voltage dist. urbane generator (VDG) could be a reasonably device accustomed generate voltage interferences that will occur within the network so as to check and assess the performance of the facility quality devices like Dynamic Voltage skilled worker (DVR) and Uninterruptible Power Supply (UPS). a number of the voltage interference generator systems that are obtainable within the literature and commercially obtainable are complicated and costly whereas the others are straightforward, cheap however less practical. during this paper, a brand new electrical device based mostly, digital signal processor (DSP) Manage VDG is intended which might generate balanced and unbalanced voltage sag/swell and interruption and might change the depth, length and initiation purpose of interferences. The planned system consists of two-way s witches, variable transformers and DSP based mostly controller. three section twenty kava experimental setup is developed to verify the performance of the designed system with linear and non-linear masses. Moreover, the performance of VDG is additionally investigated within the compensation tests of DVR and UPS.
Voltage Sag, Voltage Swell, Interference Generator.
 R. Naidu, P. Pillar, a brand new methodology of voltage sags and swells detection, IEEE Transactions on Power Delivery.
 J, Lucia, E. Espinosa-Juarez, A. Hernandez, Voltage sag state estimation in power systems by applying genetic algorithms, IET Generation, Transmission and Distribution
 M.F. McGranaghan, D.R. Mueller, M.J. Sooty, Voltage sags in industrial systems, IEEE Transactions on business Applications .
 K. Daychosawang, Y. Kumsuwan, Balanced and unbalanced three-phase voltage sag generator for testing electrical instrumentality, IEEE Electrical Engineering/Electronics, Computer, Telecommunications and data Technology Conference ECTI-CON, Nacho Ratchasima.
 Y. Yang, F. Bleiberg, Z. Zoo, Benchmarking of voltage sag generators, Annual Conference on IEEE Industrial natural philosophy Society IECON, Montreal, QC, Canada.