Optimum control strategies for transient as well as oscillatory instability of power systems

Journal Article · Sat May 01 00:00:00 EDT 1993 · IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/59.260835· OSTI ID:6003043

Rahim, A H.M.A.; Al-Sammak, A I.J. ^[1]; Al-Shehri, A M ^[2]

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1. Univ. of Bahrain, Isa Town (Bahrain). Dept. of EE and CS
2. King Fahd Univ. of Petroleum and Minerals, Dhahran (Saudi Arabia). Dept. of Electrical Engineering

A coordinated dynamic braking strategy and excitation control to arrest the first swing instability as well as subsequent oscillations in a power system is proposed. Comparison is made between braking resistor, resistor-reactor and resistor-capacitor strategies with and without excitation control. The control strategies are obtained in terms of system states and other measurable quantities. Assumptions that the reference machine is large and that it is not equipped with dynamic braking facility lead to a simpler control strategy. Excitation strategy can also be significantly simplified by relaxing the constraints on the rotor angle. Computer simulation of a multi-machine system shows that a coordinated application of braking resistor-capacitor and excitation strategy controls the transients effectively.

• OSTI ID: 6003043
• Journal Information: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:2; ISSN 0885-8950; ISSN ITPSEG
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
CONTROL THEORY
ELECTRICAL TRANSIENTS
ENERGY SYSTEMS
INSTABILITY
OSCILLATIONS
POWER SYSTEMS
TRANSIENTS
VOLTAGE DROP