Synchrophasor Initiative in India - erldc

SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 20127 CHAPTER-7: CHALLENGESThe experience with synchrophasors has been a roller coaster ride full of exhilaration andexcitement. Though the synchrophasors data is presently available only from a few locations inthe Indian grid, yet it has dramatically raised visualization and the level of understanding of thepower system within the control centre within few months of its commissioning. It has nowbecome an indispensable part of the data resource available at the load dispatch centre. Thetwo years of experience has revealed several challenges [Reference 2, 4, 5 and 6] that need tobe addressed during the full fledged project. These challenges and difficulties have beendiscussed below:7.1. Challenges with respect to visualization tools in real-timeHuge volume of synchrophasor data is being received and stored at the control center. It isdifficult to comprehend the data due to limited availability of real time &offline applications.However analysis is being done with limited number of available resources. With more numberof syncrophasors being installed, new type of displays need to be developed which are moreuser friendly so that they help in better visualization of the system. These would present abetter picture of the dynamic situation of the grid to the operator.7.2. Reliability of synchrophasor dataData loss occurs due to communication problem between PMU and control center. There iscomplete loss of data from one or more location or sometimes intermittent data loss for shorterperiod.Figure 131: Data loss of Kanpur PMU on 1st April 2011Figure 131 shows the data loss of Kanpur PMU on 1 st April 2011.POSOCO Page 133 of 143