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Electric power systems can display a range of undesirable dynamic phenomena by which acceptable, stable operation may be lost. Quasi-steady-state operational problems such as the voltage instability phenomena are among these. Ill-conditioning of the power flow, reflected in high sensitivity of bus voltage magnitudes to load variation is an often observed precursor to such quasi-steady state operational...
Ill-conditioning of the power flow, reflected in high sensitivity of bus voltage magnitudes to load variation, often serves as a basic indicator of vulnerability to voltage instability. This sensitivity may be quantified by the induced 2-norm associated with the power flow Jacobian inverse, as may be computed from Singular Value Decomposition(SVD). While this conceptual picture is simple, near-real-time...
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