Phase II: frequency domain analysis of low-frequency oscillations in large electric power systems. Volume 1. Basic concepts, mathematical models, and computing methods. Final report
When major electric power systems are interconnected through ties of relatively small capacity, low-frequency intersystem oscillations are likely to be troublesome for some operating conditions. Spontaneous intersystem oscillations which have occurred in the western and north central states attest to this aspect of system behavior. The long distances which separate concentrations of generating capacity in those systems also separate many individual generating plants from other machines; so that localized, poorly damped, higher frequency modes of oscillation also exist. The potential for unstable oscillations must be considered in planning the bulk generation and transmission system, in designing control systems for turbine-generators and dc line terminals, and in system operations. Present practice depends almost entirely on time-domain simulation for large system analysis, with computing costs that are relatively high and information in a form which is often not well suited to study purposes. The objective of this research is to develop an alternative to time-domain simulation for damping studies. This alternative involves the use of a linearized system model for calculating the natural frequencies and damping factors of oscillations between generator rotors.
- Research Organization:
- Westinghouse Electric Corp., Pittsburgh, PA (USA). Advanced Systems Technology Div.
- OSTI ID:
- 6139851
- Report Number(s):
- EPRI-EL-2348-Vol.1; ON: DE82903570
- Resource Relation:
- Other Information: Microfiche only, copy does not permit paper copy reproduction
- Country of Publication:
- United States
- Language:
- English
Similar Records
Frequency-domain analysis of low-frequency oscillations. Part 2. Modeling. Interim report
Comparison of turbine-generator shaft torsional response predicted by frequency domain and time domain methods following worst-case supply system events
Related Subjects
INTERCONNECTED POWER SYSTEMS
OSCILLATIONS
STABILITY
SYSTEMS ANALYSIS
COMPUTER CALCULATIONS
DAMPING
ELECTRIC GENERATORS
FREQUENCY CONTROL
MATHEMATICAL MODELS
CONTROL
ENERGY SYSTEMS
POWER SYSTEMS
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)