Calculation of Oscillatory Stability Margins in the Space of Power System Controlled Parameters
نویسندگان
چکیده
| The paper is devoted to nding the most dangerous (critical) changes of parameters which put the power system on either a saddle node or Hopf bifurcation boundary. The corresponding vectors in the space of system parameters provide information about stability margins, give a measure of and locally optimal ways to improve power system security, indicate parameters which badly aaect stability. The paper contains a simpliied form of the critical distance equations, analysis of their meanings, discussion of how to decrease dimension of the system, a robust numerical procedure for obtaining initial guesses and a solution of the system. The technique is tested on the New England Test System.
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