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Unlocking Future Grids: Challenges and Innovations in Power Systems Engineering

This document explores the technical advancements required to transform the future electricity grid. It addresses critical priorities including cheaper, reliable, and greener energy, while identifying the challenges presented by the current precarious state of the grid. Key technologies such as phasor measurement units (PMUs) and micro-synchrophasors are discussed, emphasizing their roles in enhancing visibility and stability. The interplay between distributed generation (DG) and centralized power systems is examined, considering the implications for system stability and operational efficiency in both developed and developing regions.

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Unlocking Future Grids: Challenges and Innovations in Power Systems Engineering

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Presentation Transcript

  1. Power systems engineering Mike He, NicBeutler, Sascha von Meier, Seth Sanders

  2. Questions • What are the technical advances that will be needed to enable this new world • Scale up or scale down - microgrids or utility-driven?

  3. Priorities of the Future Grid • Cheaper energy • More reliable energy (power quality) • Greener energy The smart grid challenge is how to reconcile these oft-competing priorities

  4. The Precarious State of the Grid • It is hard to know how close we are to wide-area failure • Recent outages were unforeseen • “Works in practice but not theory” • Security • Wide-area stability with renewables is unknown

  5. Key Technologies • Monitoring – visible, transparent understanding • PMUs • Oscillations and damping at nodes • Stability support from switched generation • Communication and coordination • Coordinate local decisions with global optimization • Two-way power flow enablers • Protection • Control

  6. Technologies cont’d • Micro-synchrophasors (distribution level) • Transformative and disruptive • Greatly improve transparency and visibility • Allows for fast solving of Optimal Power Flow • Enabler for switched generation to provide stability

  7. Electric Grid as a Commons • Competitive paradigm does not match physical reality • Distributed generation – does it weaken the commons? • DG owners optimize for profit, not system stability • How can DG be drafted to support the commons • Aggregator?

  8. The Development of DG • 2.5% of CA generation • IEA estimates 25% of new capacity will be DG through 2030 • 13 GW of new DG in 2009 • 80% small (avg 100kW)

  9. Global dichotomy • Developed regions will remain mostly centralized • DG will begin to play significant role • CA: 12 GW of DG by 2020 • Developing regions may develop significant DG • Leapfrogging developed regions

  10. Questions?

  11. Modern Electricity Grid • Centrally Controlled • Large-scale Central Generation • One-way Power Flow • Homogeneous Power Quality, Reliability

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