An adaptive approach to load shedding and spinning reserve control during underfrequency conditions

Journal Article · Fri Nov 01 04:00:00 EST 1996 · IEEE Transactions on Power Systems

DOI:https://doi.org/10.1109/59.544646· OSTI ID:435369

Chuvychin, V N; Gurov, N S ^[1]; Venkata, S S; Brown, R E ^[2]

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1. Riga Technical Univ. (Latvia)
2. Univ. of Washington, Seattle, WA (United States). Dept. of Electrical Engineering

Emergency conditions arising due to generating power deficiency and the consequent drop in power system frequency can lead to system collapse and a large scale loss of load. Underfrequency load shedding (UFLS) is a globally accepted practice to handle this situation. Most UFLS schemes use pre-specified step sizes based upon frequency measurements. This paper presents an adaptive scheme which uses both frequency and rate-of-change of frequency measurements to dynamically set UFLS relays if more than one generation outage is experienced. It then proposes a technique for coordinating UFLS and the activation of spinning reserves through localized governor control. Recent developments in computer based frequency and rate-of-change of frequency relays makes this scheme both feasible and attractive.

• OSTI ID: 435369
• Report Number(s): CONF-960111--
• Journal Information: IEEE Transactions on Power Systems, Journal Name: IEEE Transactions on Power Systems Journal Issue: 4 Vol. 11; ISSN 0885-8950; ISSN ITPSEG
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
CAPACITY
FREQUENCY DEPENDENCE
LOAD MANAGEMENT
POWER SYSTEMS
STABILIZATION