International Science Community Association Research Journal of Engineering Sciences 2278 - 9472 6 8 2017 09 26 Mitigation of voltage disturbances (Sag/Swell) utilizing dynamic voltage restorer (DVR) 1 7 EN Verma Srishti 1 Electrical Engineering Department, Bhilai Institute of Technology, Durg, CG, India Huddar Anupama 2 Electrical Engineering Department, Bhilai Institute of Technology, Durg, CG, India > Research Paper 2017 4 8 2017 09 26 The paper focuses in the working of Dynamic Voltage Restorer (DVR), a series compensating device utilized for mitigating the events of voltage sag and swell which are most crucial and frequent phenomena occurring in transmission and distribution network. The sag and swell have severe impact to industrial customers ranging from disruptions of sensitive loads to substantial economic losses up to millions of dollars. The control algorithm used for detection of voltage disturbance depends on the theory of synchronous reference frame utilizing park’s transformation. The sinusoidal pulse width modulation technique is used for the generation of triggering pulses for IGBT’s of voltage source inverter. Matlab/Simulink is used for simulation of the proposed methodology and the result of simulation verifies the proposed scheme. Copyright@ International Science Community Association