Search Results - "DeMarco, C.L."

Admissible Locational Marginal Prices via Laplacian Structure in Network Constraints by Cheverez-Gonzalez, D., DeMarco, C.L.

“…Standard computations reveal that locational marginal prices (LMPs), being Lagrange multipliers in an optimization problem, must lie in the null space of a…”
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Stability analysis of interconnected power systems coupled with market dynamics by Alvarado, F.L., Meng, J., DeMarco, C.L., Mota, W.S.

“…The use of market mechanisms to determine generation dispatch, and the natural tendency to seek improved economic efficiency through rapid market updates,…”
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Transmission expansion via maximization of the volume of feasible bus injections by Thiam, F.B., DeMarco, C.L.

“…•A new approach in transmission expansion planning is presented here, this work develops transmission performance metrics that are intrinsic to the network…”
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A phase transition model for cascading network failure by DeMarco, C.L.

“…We consider a special structure of dynamic system model that admits a very tractable inclusion of element failure phenomena, for which a global system Lyapunov…”
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An extended Kalman filter approach to rotor time constant measurement in PWM induction motor drives by Li-Cheng Zai, DeMarco, C.L., Lipo, T.A.

“…A rotor time constant estimation technique for the purpose of updating the control gains of an induction motor field-oriented controller is described. An…”
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Point of collapse methods applied to AC/DC power systems by Canizares, C.A., Alvarado, F.L., DeMarco, C.L., Dobson, I., Long, W.F.

“…The authors describe an extension of the point of collapse method developed for studies of AC systems to the determination of saddle-node bifurcations in power…”
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Improved techniques for power system voltage stability assessment using energy methods by Overbye, T.J., DeMarco, C.L.

“…An improved method of assessing power system voltage stability using energy techniques is presented. The concept of an energy function providing a localized…”
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Determination of needed FACTS controllers that increase asset utilization of power systems by Pilotto, L.A.S., Ping, W.W., Carvalho, A.R., Wey, A., Long, W.F., Alvarado, F.L., Edris, A.

“…The paper presents an approach for identifying the most effective flexible AC transmission system (FACTS) controllers, locations, types and ratings that…”
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An energy based security measure for assessing vulnerability to voltage collapse by DeMarco, C.L., Overbye, T.J.

“…A security measure is defined to indicate vulnerability to voltage collapse based on an energy function for system models that includes voltage variation and…”
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Q-V curve interpretations of energy measures for voltage security by Overbye, T.J., Dobson, I., DeMarco, C.L.

“…Energy methods have shown promise as measures for quantifying the vulnerability of power systems to problems of voltage instability and collapse. However, to…”
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Synchrony, aggregation, and multi-area eigenanalysis by Ramaswamy, G.N., Verghese, G.C., Rouco, L., Vialas, C., DeMarco, C.L.

“…This paper explores synchrony, a generalization of the concept of slow-coherency, and outlines how it can form the basis for efficient construction of dynamic…”
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Design of predatory generation control in electric power systems by DeMarco, C.L.

“…Previous work has demonstrated the potential for coordinated control of a group of generators in a manner that destabilizes other machines in the system, while…”
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A vector energy function approach for security analysis of AC/DC systems by DeMarco, C.L., Canizares, C.A.

“…The authors examine dynamic behavior in system models that reflect reasonably detailed third-order high-voltage DC (HVDC) dynamics along with AC system models…”
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An optimization scheme for locating power system equilibria ranked by a scalar Lyapunov function by DeMarco, C.L.

“…A constrained optimization algorithm for implementing a geometric approach to ranking UEPs (unstable equilibrium points) is proposed. The formulation seeks to…”
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Approximating power system dynamics and energy functions by quasi-gradient models by DeMarco, C.L.

“…Power systems models that possess a well-defined Lyapunov function frequently share the following structure: the normal form of their system state equations…”
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A new method of constructing Lyapunov functions for power systems by DeMarco, C.L.

“…The author describes a method of constructing Lyapunov functions for systems that satisfy certain assumptions on their structure. He introduces the term…”
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Mutually orthogonal LMP decompositions: Congestion decomposes, losses do not by Cheverez-Gonzalez, D., DeMarco, C.L.

“…A useful perspective on Locational Marginal Prices (LMPs) recognizes that, as Lagrange multipliers, they must lie in the null space of a network-structured…”
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An approach to robust stability of matrix polytopes through copositive homogeneous polynomials by Qian, R.X., DeMarco, C.L.

“…An approach to guaranteeing the stability of a polytope of matrices is proposed. Previous results in the literature have made the obvious connection between…”
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Characterization of Feasible LMPs: Inclusion of Losses and Reactive Power by Cheverez-Gonzalez, D., DeMarco, C.L.

“…When formulated within a security constrained optimal power flow, the vector of locational marginal prices (LMPs) are a subset of Lagrange multipliers, and…”
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The minimal dimension of stable faces required to guarantee stability of a matrix polytope by Cobb, J.D., Demarco, C.L.

“…Considers the problem of determining whether each point in a polytope n*n matrices is stable. The approach is to check stability of certain faces of the…”
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