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 Alzenira Abaide Rafael Milbradt Luciane Canha Paulo Pereira Renê Emmel Jr. CEEMA

Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 CEEE-D State Company of Electrical Energy Distribution UFSM Federal University of Santa Maria CEEMA Center of Studies on Energy and Environment ANEEL National Agengy of Electrical Energy CEEMA

Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – 0993 CEEE-D State Company of Electrical Energy Distribution Energy: 7.32GWh Customers:1.46Millions Cities: 72 Area: km²

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

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

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

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

Frankfurt (Germany), 6-9 June 2011 Paulo Pereira – Brazil – Session 2 – Brazilian Distribution System’s Characteristics  Voltage Drop ,2kV 23,1kV

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Frankfurt (Germany), 6-9 June 2011 Paulo Ricardo da Silva Pereira Paulo Pereira – Brazil – Session 2 – 0993 Thanks For Your Attention 28 CEEMA