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Integrating Synchrophasor System with Situational Awareness: Procedures, Challenges, and Solutions

This paper covers the procedures followed and challenges faced during the integration of the Synchrophasor System with the Situational Awareness System. It discusses the importance of the communication system, bandwidth utilization, and MSETCL's initial experience with the Synchrophasor system in analyzing grid occurrences. It also provides brief information on the integration aspects between the Synchrophasor system and Situational Awareness system.

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Integrating Synchrophasor System with Situational Awareness: Procedures, Challenges, and Solutions

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  1. FIRST STEPS TOWARDS SYNERGISING COMMUNICATION SYSTEM, WAMSAND SITUATIONAL AWARENESS SYSTEM U.G.ZALTE, EX-DIRECTOR (OPERATIONS) –MSETCL, A.R. KULKARNI. DATE: 13-15 NOVEMBER 2013 CIGRE TUTORIAL AND COLLOQUIUM ON SMARTGRID MYSORE, KARNATAKA - INDIA .

  2. COVERAGE • INTRODUCTION • MSETCL SYNCHROPHASOR SYSTEM DETAILS • CASE STUDY : ANALYSIS OF OCCURRENCE IN THE GRID USING SYNCHROPHASOR SYSTEM • EXPERIENCE OF INTEGRATING WAMS AND SITUATIONAL AWARENESSS SYSTEM

  3. MSETCL ROLE Transmission Licensee • State Load Dispatch Centre (SLDC) • State Transmission Utility (STU)

  4. MSETCL INFRASTRUCTURE AS ON 31st JULY 2013 .

  5. MSETCL 400kV Network Overview

  6. Communication System architecture in MSETCL

  7. Total bandwidth Requirement for various applications in use at 400kV Dhule substation

  8. MSETCL WIDE AREA MEASUREMENT SYSTEM (WAMS) INFRASTRUCTURE AND CASE STUDY

  9. Architecture of WAMS infrastructure in MSETCL.

  10. PMU Locations in MSETCL System Within Greater Mumbai Area Within Greater Mumbai Area 11

  11. PARAMETERS OBSERVED ON SYNCHROPHASOR SYSTEM AT SLDC-KALWA • Delta • Voltages • Currents • Frequency • df/dt • Active power • Reactive power

  12. Occurrence at 400kV Deepnagar Substation and calculation of H • On 22.05.2013, at 22 :48 :22 :200 Hrs, it is observed that, R phase Bus-1 CT of GT-5 bay failed and burst resulting into operation of busbar protection of main Bus-I. • At the same time, B phase pole of main CB of 400 kV Khadka Circuit-2 failed and burst. The bus bar protection for Main bus-2 also operated.

  13. Occurrence at 400kV Deepnagar Substation and calculation of H • Both the 400 kV buses became dead resulting into failure of supply at 400kV Deepnagar substation. This occurrence has also resulted into generation loss of 531 MW in the state grid. • Rate of change of frequency (df/dt) recorded by PMU’s is utilised to calculate inertia constant ‘H’ for Maharashtra system.

  14. Voltage Dip observed at various locations of PMU placement in MSETCL system

  15. Current Rise in R-Phase observed at 400kV Koradi Rise in R-Phase Current observed at 400kV Koradi from 0.4kA to 1.20 kA

  16. Frequency and df/dt Variation observed by PMUs during Occurrence at 400kV Deepnagar Substation

  17. Calculation of H from df/dt measured from PMU during occurrence at 400kV Deepnagar Substation on 22.05.2013 i) ΔP - Generation loss during occurrence = 531 MW ii) P : Total Generation in Maharashtra on 22.05.2013 = 15,973 MW iii) F0 : Frequency before the disturbance = 50.02 Hz iv) df/dt measured from PMU : (-0.119) H = (531) / (15973) * 50.02 / [ 2* (-0.119)] H = -6.25 Sec.

  18. PAPER : D2- 01_25 • What are the procedures followed while integrating Synchrophasor System • with Situational Awareness System? • What are the challenges faced for the integration? PROCEDURES FOLLOWED AND CHALLENGES FACED DURING INTEGRATION OF WAMS WITH SITUATIONAL AWARENESSS SYSTEM

  19. Dataflow from PMUs to Situational Awareness system Data from PMUs PDC IEC -104 Converter Situational Awareness System

  20. PROCEDURAL CHECKS & CHALLENGES • Proper Communication System . • Allocation of IPs and its proper use alongwith Gateway, Proper LAN formation . • Ensuring proper Interoperability between WAMS and Situational Awareness system . • Ensuring proper data receipt of following : a) From PMUs to PDC b) From PDC to IEC-104 Converter c) From IEC-104 Converter to Situational Awareness system • Data Validation, Point to Point test for WAMS and Situational Awareness system data . • Ensuring proper Visualisation of data in Situational Awareness

  21. Status of data being sent from PMUs to PDC

  22. Status of data being sent properly from IEC-104 converter to Situational Awareness system

  23. IEC-104 converter not communicating with Situational Awareness system

  24. IEC-104 Converter communicating with Situational Awareness system

  25. CONCLUSIONS • It discussed importance of communication system, bandwidth utilisation for different application being used in transmission system including that of WAMS. • Discusses in brief MSETCL initial experience with Synchrophasor system in analysing occurrence in the grid. • Brief information on initial integration related aspects between Synchrophasor system and Situational awareness system .

  26. THANK YOU !!

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