This paper presents the application of dynamic voltage restorer (DVR) on Power distribution systems for mitigation of voltage sags at critical loads. DVR is one of the compensating types of custom power devices. This paper presents a selective harmonic elimination using diode clamped multi level inverter. These topologies are well suited for high-power, high-voltage level and low harmonic. Computer simulations results are presented to verify the performance of the 8 bus DVR system
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