The Nested Hierarchy as a System Structure in a Changing Industry

  • Marija D. Ilić
  • Shell Liu
Part of the Advances in Industrial Control book series (AIC)


Before introducing the notion of nested hierarchies, considered here as necessary for formulating operation and control in the changing electric power industry, we briefly describe the horizontal hierarchy structure typically found in existing power systems. Next, we introduce the concept of the nested hierarchy and its relation to the changes required in present system operation and control in order to accommodate competitive supply/demand energy transactions while still keeping the system together. Examples of some recently evolved industry structures are shown to be particular cases of the general nested hierarchy.


Unit Commitment Optimal Power Flow Generation Schedule Independent System Operator Subsystem Level 
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Copyright information

© Springer-Verlag London Limited 1996

Authors and Affiliations

  • Marija D. Ilić
    • 1
  • Shell Liu
    • 2
  1. 1.Department of Electrical Engineering and Computer Science Laboratory for Electromagnetic and Electronic SystemsMassachusetts Institute of TechnologyCambridgeUSA
  2. 2.Transmission Technology InstituteABB Power T&D Company IncRaleighUSA

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