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The Future of Distribution Systems in the Deregulated Environment: Opportunities and Challenges

The Future of Distribution Systems in the Deregulated Environment: Opportunities and Challenges. S. S. Venkata V. V. Sastry N. Balijepalli Grand Challenges Panel IEEE/PES Summer Meeting, Chicago July 24, 2002. Presentation Outline. What is an Ideal Distribution System?

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The Future of Distribution Systems in the Deregulated Environment: Opportunities and Challenges

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  1. The Future of Distribution Systems in the Deregulated Environment: Opportunities and Challenges S. S. Venkata V. V. Sastry N. Balijepalli Grand Challenges Panel IEEE/PES Summer Meeting, Chicago July 24, 2002

  2. Presentation Outline • What is an Ideal Distribution System? • Historical Perspective • Current Dilemma • Emerging Future: Driving forces • Grand Challenges for Next Decade • Grand Challenges Beyond Next Decade

  3. What is an Ideal Distribution System? • Total Control of Personal Power • Wireless power • Zero emissions for Distributed Resources • Self - Healing - Zero outages • Zero distribution Loss • Zero supply deficiencies • Zero distortion power

  4. Historical Perspective • Most Attention on Bulk Systems • Capital Intensive • Benign Neglect • Poor Planning • Inefficient Operation • No Cost Consideration

  5. Current Dilemma • Deregulation or Re-regulation is a Fact • Electricity is Expensive • Global Demand Increasing • National Economic Growth • Population Growth • Better Awareness of Public • Higher Expectations from Customers

  6. Emerging Future Systems Will Become More Complex Adapt to Changing Culture Driving Forces

  7. Driving Forces • Diverse Market Issues • Regulatory Issues • Technological Issues

  8. Diverse Market Issues • Large Industrial Customers Need • High Reliability and Power Quality • Residential Customers Want • Low-Cost Energy • Distribution Companies Need: • Stay Competitive

  9. Regulatory Issues • Obligation to Protect Interests of • People • Small and Large Businesses • Environment • Federal Energy Regulatory Commission • Public Utility Commissions (State)

  10. Technological Issues Distributed Resources (DR) Integrated into Distribution Network EPRI estimates that by the year 2020 15-20 % new generation would be DR New Communication and Information Technologies

  11. Grand Challenges for Next Decade • Optimum Planning and Automated Operation • Var Support • Reliability and Power Quality • Efficiency Improvement • Integrated Sensing, Monitoring and Control

  12. Grand Challenges for Next Decade • Information Technology Needs • Data Collection and Mining • Distributed Resources Integration • Protection • Interface with Different Frequency Equipment • Meeting Federal & State Standards • Independent Customers

  13. Grand Challenges Beyond Next Decade • Systems will Become Even More Complex • No Power Quality Problems • Zero Interruption Supply • Why Sinusoidal Systems? • Totally Independent Customer Owned Systems? • Why Distribution be Radial?

  14. A Radical Proposal • Primary distribution in dc • System impervious to power quality problems • Local reactive power support • Improved performance of DR due to freedom from frequency restrictions • Problems • dc protection devices are complicated

  15. DR DR Current Topology Sub 3f ac line R load Distributed Resources Sub R

  16. Radical Topology DCB DCB DCB DCB DR DR DCB DCB Sub dc line R load Distribution Converter Box (inverter + transformer) pole-mounted or pad-mounted Sub R

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