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Optimal modulation controller for superconducting magnetic energy storage

Authors
Journal
International Journal of Electrical Power & Energy Systems
0142-0615
Publisher
Elsevier
Publication Date
Volume
16
Issue
5
Identifiers
DOI: 10.1016/0142-0615(94)90033-7
Keywords
  • Optimal Control
  • Superconducting Magnetic Energy Storage
  • On-Line Control Strategies
  • Transient Stability
  • Security Enhancement
Disciplines
  • Physics

Abstract

Abstract A study of power system transient stability enhancement through effective use of the superconducting magnetic energy storage is presented. Simultaneous optimal modulation of the active and reactive power is formulated as a modulation which forces the fastest dissipation of energy released in the system by a given fault. For this definition the optimal modulation strategy has been derived from the direct Lyapunov method for a multi-machine nonlinear power system model. This theoretical optimal strategy can easily be technically realized as a nonlinear control using only locally measurable quantities. The validity and robustness of the proposed local control has been confirmed by simulation tests.

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