The Structural Design of Air and Gas Ducts for Power by American Society Of Civil Engineers

By American Society Of Civil Engineers

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H. Bevrani. 2009. Robust power system frequency control. New York: Springer. 2. N. K. Stanton, J. C. Giri, A. Bose. 2007. Energy management. In Power system stability and control, ed. L. L. Grigsby. Boca Raton, FL: CRC Press. 3. IEEE PES. 2008. Standard for SCADA and automation systems. 1. © 2011 by Taylor & Francis Group, LLC 36 Intelligent Automatic Generation Control 4. H. Bindner, O. Gehrke. 2009. System control and communication. In RisØ enery report: The intelligent energy system infrastructure for the future, ed.

The control area is a coherent area consisting of a group of generators and loads, where all the generators respond to changes in load or speed changer settings, in unison. © 2011 by Taylor & Francis Group, LLC Automatic Generation Control (AGC): Fundamentals and Concepts 25 The frequency is assumed to be the same in all points of a control area. A multiarea power system comprises areas that are interconnected by highvoltage transmission lines or tie-lines. The AGC system in an interconnected power system should control the area frequency as well as the interchange power with the other control areas.

7, in a simplified scheme. In a large multiarea power system, all three forms of frequency control (primary, supplementary, and emergency) are usually available. The demand side also participates in frequency control through the action of frequency-sensitive relays that disconnect some loads at given frequency thresholds (UFLS). The demand side may also contribute to frequency control using a self-regulating effect of frequency-sensitive loads, such as induction motors. However, this type of contribution is not always taken into account in the calculation of the overall frequency control response.

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