Synchrophasor Initiative in India - erldc

SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 2012After completion of the first two phases of the project total eight PMUs and one PDC has beeninstalled and are functional. In the Western Region two PMUs and one PDC has been installedwhile in the Southern Region three PMUs and one PDC has been installed as a demo. The pilotproject in NR was approved by the Central Electricity Regulatory and funded from the surplusfund available in the Unscheduled Interchange pool account while the installations in Westernand Southern Region are demonstration projects. The other details of the project taken up in thethree regions have been summarized in Table 2.2.2 Location of Phasor Measurement UnitsThe primary objective of the pilot/demo projects was to comprehend the synchrophasortechnology and its applications for Power System Operation. Further it was also understood thatthe PMU commissioned at a substation could be relocated very quickly in case the earlierselection of location was not found appropriate. Therefore a heuristic approach was adopted forfaster implementation. The broad procedure for selection of PMU locations is described below:i. Locations separated by large geographical distanceii. Locations with large phase angle separation estimated from steady state load flowstudies for different anticipated scenarioiii. Locations near large generation complexiv. Locations having broadband communication link with NRLDC (location of the PDC)v. Locations perceived to be critical based on operator experienceIn the phase-I of the pilot project taken up in Northern Region, the PMUs were placed at fourlocations viz. 400 kV side of Vindhyachal HVDC back to back station; 400 kV Dadri; 400 kVKanpur and 400 kV Moga substations. The PDC was placed at the Northern Regional LoadDespatch Centre (NRLDC). In the phase-II the PMUs were placed at 400 kV Hisar, 400 kVBassi, 400 kV Agra and 400 kV Kishenpur. Later an additional PMU was installed at the 400 kVKarcham Wangtoo HEP by Jaiprakash Power Ventures Ltd.In the Western Region, the PMUs are located in 400 kV Bhadravati and 400 kV Raipursubstations.In the Southern Region the three PMUs are located in 400 kV Salem, 400 kV Bengaluru and400 kV Hyderabad.The geographical position may be referred in figure 7, 8 9, and the general architecture of theinstallation is shown as figure 10.POSOCO Page 22 of 143