Evaluation of Economy and/or Security Oriented Objective Functions for Reactive Power Scheduling in Large Scale Systems

Franchi, Massimo Piergiuseppe; Innorta,; Marannino,; Sabelli,

doi:10.1109/mper.1983.5520093

Cited by 3 publications

(2 citation statements)

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“…Volt–VAr optimisation (VO) aims to minimise network power losses and prevent voltage violations by dispatching reactive power control devices [1]. In recent years, the numbers of renewable distributed generations (DGs) including photovoltaic (PV) and wind power generators have increased significantly in distribution networks, formulating active distribution networks (ADNs).…”

Section: Introductionmentioning

confidence: 99%

Robust reactive power optimisation and voltage control method for active distribution networks via dual time‐scale coordination

Zheng

Zhang

et al. 2017

IET Generation, Transmission & Distribution

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Section: Introductionmentioning

confidence: 99%

Robust reactive power optimisation and voltage control method for active distribution networks via dual time‐scale coordination

Zheng

Zhang

et al. 2017

IET Generation, Transmission & Distribution

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“…Reference [18] applies a linearized approximation of a nonlinear optimization problem to reduce reactive power production and reduce system losses. The linearized objective function is formed by the gradient vector and the Hessian matrix, while the constraints are obtained from system sensitivities.…”

Section: Introductionmentioning

confidence: 99%

An approach for real time voltage stability margin control via reactive power reserve sensitivities

Leonardi

Ajjarapu

2013

IEEE Trans. Power Syst.

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This study proposes a man-in-loop control method to boost reactive power reserves (RPRs) while maintaining a minimum amount of voltage stability margin (VSM) bus voltage limits. The objective is to determine the most effective control actions in order to reestablish critical RPRs across the system. Initially, the concept of reactive power reserve sensitivity with respect to control actions is introduced. In the sequel, a control approach based on convex quadratic optimization is used to find the minimal amount of control necessary to increase RPRs above their pre-specified (offline) levels. Voltage stability margin constraints are incorporated using a linear approximation of critical RPRs.Simulation results show that system operators can optimally determine the right amount and location of control actions in order to restore critical RPRs and enhance VSM by using reactive power reserve sensitivities. Moreover, the optimization problem size can be made small if only the most effective control actions are selected, a desirable advantage for real time implementations of man-in-loop control.Index Terms-Emergency control, reactive power reserves, reactive power reserve sensitivity, voltage collapse, voltage stability control.

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Real power loss minimization using interior point method

Rezania

Shahidehpour

2001

International Journal of Electrical Power & Energy Systems

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Evaluation of Economy and/or Security Oriented Objective Functions for Reactive Power Scheduling in Large Scale Systems

Cited by 3 publications

References 0 publications

Robust reactive power optimisation and voltage control method for active distribution networks via dual time‐scale coordination

Robust reactive power optimisation and voltage control method for active distribution networks via dual time‐scale coordination

An approach for real time voltage stability margin control via reactive power reserve sensitivities

Real power loss minimization using interior point method

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