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Multimodeling Control via System Balancing

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  • Nada Ratković Kovačević
  • Dobrila Škatarić

Abstract

A new approach in multimodeling strategy is proposed. Multimodel strategies in which control agents use different simplified models of the same system are being developed using balancing transformation and the corresponding order reduction concepts. Traditionally, the multimodeling concept was studied using the ideas of multitime scales (singular perturbations) and weak subsystem coupling. For all reduced-order models obtained, a Linear Quadratic Gaussian (LQG) control problem was solved. Different order reduction techniques were compared based on the values of the optimized criteria for the closed-loop case where the full-order balanced model utilizes regulators calculated to be the optimal for various reduced-order models. The results obtained were demonstrated on a real-world example: a multiarea power system consisting of two identical areas, that is, two identical power plants.

Suggested Citation

  • Nada Ratković Kovačević & Dobrila Škatarić, 2010. "Multimodeling Control via System Balancing," Mathematical Problems in Engineering, Hindawi, vol. 2010, pages 1-20, July.
    • Handle: RePEc:hin:jnlmpe:841830
    DOI: 10.1155/2010/841830
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