@inproceedings{molzahn_hiskens_lesieutre-hicss2016,
	author={D. K. Molzahn and I. A. Hiskens and B. C. Lesieutre},
	booktitle={49th Hawaii International Conference on System Sciences (HICSS)},
	title={{Calculation of Voltage Stability Margins and Certification of Power Flow Insolvability Using Second-Order Cone Programming}},
	year={2016},
	pages={2307-2316},
	month={January},
	doi={10.1109/HICSS.2016.289},
	keywords={Power Flow,Voltage Stability},
		abstract={Reliable power system operation requires maintaining sufficient voltage stability margins. Traditional techniques based on continuation and optimization calculate lower bounds for these margins and generally require appropriate initialization. Building on a previous semidefinite programming (SDP) formulation, this paper proposes a new second-order cone programming (SOCP) formulation which directly yields upper bounds for the voltage stability margin without needing to specify an initialization. Augmentation with integer-constrained variables enables consideration of reactive-power-limited generators. Further, leveraging the ability to globally solve these problems, this paper describes a sufficient condition for insolvability of the power flow equations. Trade-offs between tightness and computational speed of the SDP and SOCP relaxations are studied using large test cases representing portions of European power systems.},
	url_Paper={molzahn_hiskens_lesieutre-hicss2016.pdf},
	url_Link={http://ieeexplore.ieee.org/document/7427472/},
}

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