Paulo Pereira – Brazil – Session 2 – 0993

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 Schmaedeckesandrosm@ceee.com.br

Alzenira Abaide alzenira@ct.ufsm.br

Rafael Milbradt rmilbradt@gmail.com

Luciane Canhalncanha@ct.ufsm.br

Paulo Pereirapaulo.ricardo@ceee.com.br

Renê Emmel Jr.reneej@ceee.com.br

CEEMA

Frankfurt (Germany), 6-9 June 2011

Paulo Pereira – Brazil – Session 2 – 0993

CEEE-DState Company of Electrical Energy Distribution

http://www.ceee.com.br

UFSMFederal University of Santa Maria

http://www.ufsm.br

CEEMACenter of Studies on Energy and Environment

http://www.ufsm.br/ceema/

ANEELNational Agengy of Electrical Energy

http://www.aneel.gov.br

CEEMA

Frankfurt (Germany), 6-9 June 2011

Paulo Pereira – Brazil – Session 2 – 0993

CEEE-DState Company of Electrical Energy Distribution

http://www.ceee.com.br

3

2010Energy: 7.32GWhCustomers:1.46MillionsCities: 72Area: 73.627km²

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~70km

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Non uniform load distribution

Paulo Pereira – Brazil – Session 2 – 0993

Brazilian Distribution System’s Characteristics

urbanurban

industrialindustrial

ruralrural

6

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Large Load Variation

Paulo Pereira – Brazil – Session 2 – 0993 7

Brazilian Distribution System’s Characteristics

Frankfurt (Germany), 6-9 June 2011

Paulo Pereira – Brazil – Session 2 – 0993 8

Brazilian Distribution System’s Characteristics

Voltage Drop Voltage Drop

00

1122

33

55

44

17,2kV17,2kV

23,1kV23,1kV

Frankfurt (Germany), 6-9 June 2011

Line Drop

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control

9

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OLTC, Voltage Regulator and Transformer

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control

10

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Voltage Set without Line Drop Compensation

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Regulator - Simplified Settings

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Voltage Set with Line Drop Compensation

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Regulator - Advantage Settings

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Paulo Pereira – Brazil – Session 2 – 0993 13

Methodology Proposed

Frankfurt (Germany), 6-9 June 2011

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control of Each FeederFlowchart

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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

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The ideal TAP is defined based on optimized voltage range.

Paulo Pereira – Brazil – Session 2 – 0993

TAP Zones

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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

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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

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Frankfurt (Germany), 6-9 June 2011

Blocks of Smart Voltage Control

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control and Smart Grid

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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

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Blocks of Smart Voltage Control

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control and Smart Grid

Statistical Treatment of

measurement data.

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Blocks of Smart Voltage Control

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control and Smart Grid

Statistical Treatment of

measurement data.

Knowledge

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Blocks of Smart Voltage Control

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control and Smart Grid

Periodic Settings of the Voltage

Regulator

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Blocks of Smart Voltage Control

Paulo Pereira – Brazil – Session 2 – 0993

Voltage Control and Smart Grid

Voltage Regulator Settings and

Comand at Real Time

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Frankfurt (Germany), 6-9 June 2011

Paulo Pereira – Brazil – Session 2 – 0993

Results

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Voltage Drop

00

1122

33

55

44

20,4kV20,4kV

23,1kV23,1kV

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 Meter s, Statistic and Simulation making a Smart Voltage Control.

Paulo Pereira – Brazil – Session 2 – 0993

Conclusion

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The authors would like to thank CEEE-D and ANEEL for given financial support for this project.

Paulo Pereira – Brazil – Session 2 – 0993

Acknowledgments

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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

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CEEMA