Stabilisation of individual generators with SVC designed via phase plane partitioning

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Stabilisation of individual generators with SVC designed via phase plane partitioning

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By phase plane partitioning, dynamics of individual generators in multimachine systems are approximately represented by means of a sequence of linear time-invariant (LTI) state-space equations, based on which various static VAR compensators (SVCs) are designed to stabilise the individual generators by exploiting the well-known LTI stabilisation techniques. More precisely, the author works out state-feedback-controlled SVCs through pole assignment (PA) and least quadratic regulation (LQR), respectively. The suggested SVCs can also accommodate transient and steady-state performance specification on the generator's dynamics, besides its stabilisation. Numeric examples clearly illustrate efficacy and convenience of the stabilisation techniques.

Inspec keywords: power system control; stability; state-space methods; state feedback; synchronous generators; static VAr compensators

Other keywords: state-space equations; linear time-invariant equations; LTI stabilisation techniques; individual generators; least quadratic regulation; phase plane partitioning; state feedback; multimachine systems; static VAr compensators; pole assignment

Subjects: Synchronous machines; Stability in control theory; Control of electric power systems; Other power apparatus and electric machines; Power system control; Control system analysis and synthesis methods

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