Energy functions for FACTS devices with an energy-storage system

An energy‐storage system (ESS) can provide additional capabilities for FACTS devices in dynamic power‐flow control, and in this way improve electric‐power system stability. In order to assess their influence on the system's dynamic behavior or to determinate the device's control strategy u...

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Bibliographic Details
Published in:European transactions on electrical power 2007-09, Vol.17 (5), p.471-485
Main Authors: Azbe, V., Mihalic, R.
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical machines
Electrical power engineering
Energy accumulation
energy storage
Exact sciences and technology
FACTS devices
Lyapunov methods
Power electronics, power supplies
Power networks and lines
power-system transient stability
Regulation and control
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Summary:An energy‐storage system (ESS) can provide additional capabilities for FACTS devices in dynamic power‐flow control, and in this way improve electric‐power system stability. In order to assess their influence on the system's dynamic behavior or to determinate the device's control strategy using direct methods, proper energy functions for these devices are needed. In this paper the energy functions for the whole spectrum of FACTS devices with an ESS have been developed. For each of the devices various energy functions were proposed according to the control strategy applied. The energy functions were constructed as additional terms that can be added to any existing structure‐preserving energy function (SPEF). Tests within a single‐machine infinite‐bus system proved the correctness of the proposed energy functions. The application of new energy functions was demonstrated on the problem of transient‐stability assessment. Copyright © 2006 John Wiley & Sons, Ltd.
ISSN:1430-144X
1546-3109
DOI:10.1002/etep.138