Transient over-voltage protection in distributed generators systems

Abstract

In distributed generators systems (DGs), islanding condition occurs when generators continue to energize a part of the power network while the main utility power is no longer available. In such situations, transient over-voltage condition might occur when the amount of generated power exceeds the load consumption and hence needs to be mitigated. In this paper, we are proposing a new system consisting of high power MOSFETs configured as a digital potentiometer along with a communication module. A pre-driver circuit is used to enhance the switching response of the system. The system represents a continuous method of dissipating extra power and synchronizes all network data with an online portal for further analysis and computations.