Dynamic-stability analysis of d.w.r. synchronous generator with feedback-stabilised voltage and angle regulators

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Dynamic-stability analysis of d.w.r. synchronous generator with feedback-stabilised voltage and angle regulators

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Stability studies of a divided-winding-rotor (d.w.r.) synchronous machine, equipped with common types of voltage and angle regulators, and speed governor are made employing the Routh-Hurwitz criterion. The speed governor is found to increase the stability limits. Employing feedback stabilisation in the voltage and angle regulators is found to improve the stability limits, and also permits the use of comparatively large values of angle-regulator gain for a given negative-reactive-power absorption. Further, using the D partition method, stability boundaries in the plane of two parameters of the angle regulator are determined, and the dependence of these boundaries on other system parameters is investigated in detail, and results are presented.

Inspec keywords: synchronous generators; stability

Other keywords: divided winding rotor; Nyquist criterion; synchronous generators; stability analysis; angle regulators; electric machines; stability boundaries; turbogenerator

Subjects: Synchronous machines

References

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