Transient stability enhancement and voltage regulation 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/10.1109/59.260819· OSTI ID:6003012

Wang, Youyi; Hill, D J; Middleton, R H ^[1]; Gao, Long ^[2]

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1. Univ. of Newcastle, New South Wales (Australia). Dept. of Electrical and Computer Engineering
2. Tsinghua Univ., Beijing (China). Dept. of Automation

Major objectives in power system control design are to prevent an electric power system losing synchronism after a large sudden fault and to achieve good postfault regulation of the generator terminal voltage. Important control ideas used to improve the transient stability of the power system are to rapidly increase excitation and to decrease the mechanical input power at the same time as a fault occurs. In this paper, the authors concentrate their attention on power systems after a symmetrical 3-phase short circuit fault. By using the direct feedback linearization (DFL) technique, a novel excitation controller and coordinated controller (excitation and fast valving controller) are given. The simulation results show that the power system can keep transiently stable and achieve good postfault voltage regulation with the nonlinear controllers. Thus they have prospects for an industrial application.

• OSTI ID: 6003012
• Journal Information: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States), Vol. 8:2; ISSN 0885-8950
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
POWER SYSTEMS
ELECTRICAL TRANSIENTS
STABILITY
CONTROL THEORY
FEEDBACK
NONLINEAR PROBLEMS
VOLTAGE REGULATORS
ENERGY SYSTEMS
TRANSIENTS
VOLTAGE DROP
240100* - Power Systems- (1990-)