Bhimavarapu, V C R
(2015)
Outage Management System with Fault Passage Indicator.
Masters thesis, Indian Institute of Technology Hyderabad.
Abstract
As the size and complexity of distribution networks is increasing, remote operated switches are being used to make the grid smarter. The distribution network is being continuously reconfigured to improve the voltage profile, reduce losses and to supply to a large number of customers. Consequently, when an outage occurs on this dynamically changing grid, it is difficult and time consuming to pin-point the location of the outage. In order to overcome this problem, fault passage indicators (FPIs) are installed at strategic locations on feeders at the branching points. FPI is a device which provides a remote and local visual indication of the occurrence of fault even after the isolation of line. While the technology of FPI is established, in this thesis, algorithms which are not sensitive to network reconfigurations, are presented for fast identification of fault location, based on the statuses
of multiple FPIs received at the utility control center. Also a load flow simulation platform with fault passage indicators is presented, which suggests the state of the network and overall set of operations to be carried out by the outage management system, for a given network topology and data of the network provided by real time monitoring systems.
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