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      • HARVEST
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      AN OPTIMAL MULTIVARIABLE STABILIZER FOR A MULTIMACHINE PLANT

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      Sun_Jun_1987_sec.pdf (6.757Mb)
      Date
      1987-04
      Author
      Sun, Jun
      Type
      Thesis
      Degree Level
      Masters
      Metadata
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      Abstract
      In recent years, intermachine oscillations in a multimachine plant have received particular attention from power system engineers due to the undesirable effects of these oscillations on the system, and also due to the fact that the individual stabilizers now in use are not effective in damping out all modes of oscillation. A multivariable stabilizer may be advantageous to stabilize a multimachine plant in which all parallel connected units in the plant are acted upon at the same time. In this thesis, an optimal multivariable stabilizer is proposed based on the Generalized Heffron-Phillips model of a multimachine plant and on linear optimal control theory. The feedback function of the stabilizer is determined by minimizing a given quadratic cost function subject to the system dynamic constraints. The effect of different weighting matrices (0) on the system performance is discussed. Nonlinear simulation results for different disturbance cases are reported to demonstrate the great capability of such a controller to damp out the intermachine oscillations.
      Degree
      Master of Science (M.Sc.)
      Department
      Electrical and Computer Engineering
      Program
      Electrical Engineering
      Supervisor
      Flemming, R. J.
      Copyright Date
      April 1987
      URI
      http://hdl.handle.net/10388/11801
      Collections
      • Graduate Theses and Dissertations
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