1. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 OPTIMIZATION OF VOLTAGE REGULATOR SETTINGS AND TRANSFORMER TAP ZONES IN DISTRIBUTION SYSTEMS WITH GREAT LOAD VARIATION USING THE SMART GRID INITIATIVES Sandro Schmaedecke sandrosm@ceee.com.br Alzenira Abaide alzenira@ct.ufsm.br Rafael Milbradt rmilbradt@gmail.com Luciane Canha lncanha@ct.ufsm.br Paulo Pereira paulo.ricardo@ceee.com.br Renê Emmel Jr. reneej@ceee.com.br CEEMA

2. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 CEEE-D State Company of Electrical Energy Distribution http://www.ceee.com.br UFSM Federal University of Santa Maria http://www.ufsm.br CEEMA Center of Studies on Energy and Environment http://www.ufsm.br/ceema/ ANEEL National Agengy of Electrical Energy http://www.aneel.gov.br CEEMA

3. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 CEEE-D State Company of Electrical Energy Distribution http://www.ceee.com.br 3 2010 Energy: 7.32GWh Customers:1.46Millions Cities: 72 Area: 73.627km²

4. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993  Distribution Systems Characteristics  Voltage Control  Voltage Regulator Settings  TAP Zones  Voltage Control and Smart Grid  Conclusions Topics 4

5. Frankfurt (Germany), 6-9 June 2011  Very Long Feeders Paulo Pereira – Brazil – Session 2 – 0993 Brazilian Distribution System’s Characteristics ~70km 5

6. Frankfurt (Germany), 6-9 June 2011  Non uniform load distribution Paulo Pereira – Brazil – Session 2 – 0993 Brazilian Distribution System’s Characteristics urbanindustrial rural 6

7. Frankfurt (Germany), 6-9 June 2011  Large Load Variation Paulo Pereira – Brazil – Session 2 – 0993 7 Brazilian Distribution System’s Characteristics

8. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 8 Brazilian Distribution System’s Characteristics  Voltage Drop 0 1 2 3 5 4 17,2kV 23,1kV

9. Frankfurt (Germany), 6-9 June 2011  Line Drop Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control 9

10. Frankfurt (Germany), 6-9 June 2011  OLTC, Voltage Regulator and Transformer Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control 10

11. Frankfurt (Germany), 6-9 June 2011  Voltage Set without Line Drop Compensation Paulo Pereira – Brazil – Session 2 – 0993 Voltage Regulator - Simplified Settings 11

12. Frankfurt (Germany), 6-9 June 2011  Voltage Set with Line Drop Compensation Paulo Pereira – Brazil – Session 2 – 0993 Voltage Regulator - Advantage Settings 12

13. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 13 Methodology Proposed

14. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control of Each Feeder Flowchart 14

15. Frankfurt (Germany), 6-9 June 2011  Define the ideal TAP for each DT with the objective of supply an adequate secondary voltage using primary voltage of the feeder. Paulo Pereira – Brazil – Session 2 – 0993 TAP Zones 15

16. Frankfurt (Germany), 6-9 June 2011  The ideal TAP is defined based on optimized voltage range. Paulo Pereira – Brazil – Session 2 – 0993 TAP Zones 16

17. Frankfurt (Germany), 6-9 June 2011  Data aquisition from customer’s meters and special devices for monitor voltage and load levels.  When necessary change Voltage Regulators Settings. Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Distribution Automation 17

18. Frankfurt (Germany), 6-9 June 2011  Data aquisition and supervisory system.  Read meters data  Read and write of Voltage Control Devices  DNP3.0 / IEC 61850 Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Smart Grid 18

19. Frankfurt (Germany), 6-9 June 2011  Blocks of Smart Voltage Control Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Smart Grid 19

20. Frankfurt (Germany), 6-9 June 2011  Blocks of Smart Voltage Control Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Smart Grid Monitor and Data Store from Meters and Special Equipments 20

21. Frankfurt (Germany), 6-9 June 2011  Blocks of Smart Voltage Control Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Smart Grid Statistical Treatment of measurement data. 21

22. Frankfurt (Germany), 6-9 June 2011  Blocks of Smart Voltage Control Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Smart Grid Statistical Treatment of measurement data. Knowledge 22

23. Frankfurt (Germany), 6-9 June 2011  Blocks of Smart Voltage Control Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Smart Grid Periodic Settings of the Voltage Regulator 23

24. Frankfurt (Germany), 6-9 June 2011  Blocks of Smart Voltage Control Paulo Pereira – Brazil – Session 2 – 0993 Voltage Control and Smart Grid Voltage Regulator Settings and Comand at Real Time 24

25. Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 Results 25  Voltage Drop 0 1 2 3 5 4 20,4kV 23,1kV

26. Frankfurt (Germany), 6-9 June 2011  Traditional Voltage Regulators together with planning of TAP Zones  Optimization of the voltage levels inside of the regulation’s area.  Reduction of the number of voltage’s complaints and regulatory demands  Use of Distribution Automation, Smart Meters, Statistic and Simulation making a Smart Voltage Control. Paulo Pereira – Brazil – Session 2 – 0993 Conclusion 26

27. Frankfurt (Germany), 6-9 June 2011  The authors would like to thank CEEE-D and ANEEL for given financial support for this project. Paulo Pereira – Brazil – Session 2 – 0993 Acknowledgments 27

28. Frankfurt (Germany), 6-9 June 2011 Paulo Ricardo da Silva Pereira paulo.ricardo@ceee.com.br Paulo Pereira – Brazil – Session 2 – 0993 Thanks For Your Attention 28 CEEMA