Voltage security enhancement via coordinated control

The problem of analytically coordinating dissimilar voltage control actions to prevent voltage collapse in a large power system is addressed. A framework for hybrid voltage control based on coordination of controls with different response time and dynamic characteristics is presented. The proposed m...

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Veröffentlicht in:IEEE transactions on power systems 2001-02, Vol.16 (1), p.127-135
Hauptverfasser: Qiang Wu, Popovic, D.H., Hill, D.J., Parker, C.J.
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creator Qiang Wu
Popovic, D.H.
Hill, D.J.
Parker, C.J.
description The problem of analytically coordinating dissimilar voltage control actions to prevent voltage collapse in a large power system is addressed. A framework for hybrid voltage control based on coordination of controls with different response time and dynamic characteristics is presented. The proposed method is based on a security constrained steady-state approach. The minimum distance from the operating point to the bifurcation boundary is used to evaluate system voltage security. The optimal control direction toward adequate security is then obtained by calculating the sensitivity of the minimum distance with respect to control parameters. The actual dispatch of controls along the optimal direction, which takes into account impacts of economic cost and control availability, is determined as the solution of a multiple-stage optimization problem using differential dynamic programming. The algorithm is demonstrated for a system with dynamic load models representing the main grid of New South Wales, Australia.
doi_str_mv 10.1109/59.910790
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subjects Control equipment
Delay
Dynamical systems
Dynamics
Electric potential
Hybrid power systems
Mathematical models
Optimal control
Optimization
Power system analysis computing
Power system control
Power system dynamics
Power system security
Power systems
Security
Steady-state
Voltage
Voltage control
title Voltage security enhancement via coordinated control
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