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Note for Power System Analysis - PSA by Adisu Teshale

  • Power System Analysis - PSA
  • Note
  • Adama Science and Technology University - ASTU
  • Electrical Engineering
  • B.Tech
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Power system Stability Analysis BY ADISU TESHALE 1

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Outlines Classification of Stability problems Power system Stability Analysis Swing equation Steady State Stability Analysis Transient state stability Analysis Equal area criteria Methods of improving power system stability 2

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• The aim of power system stability analysis is to answer: 1) How does disturbance (perturbation) affects power system? 2) Is the power system remain in synchronous after perturbation? 3

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In normal operation all power system operates in synchronous mode (run/operate in the same frequency). When disturbance (a fault) occur, a heavy current flow through the circuit cause reduction in magnitude of voltage. Power system stability is a study which deals with power system operation after any kind of disturbances. Power system stability studies dynamics of power system under perturbation. 4

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