Power-system equivalents. Final report on Electric Research Council Project RP90-4

Technical Report · Fri Jan 15 04:00:00 EST 1971

OSTI ID:5960971

Research is described which was performed to: formulate a sound mathematical and scientific basis for the construction of power system equivalents that are valid for the study of dynamic, as well as static, system performance; develop a method of constructing equivalents from system data such as impedances, gains, and time constants, with a consistent mathematical treatment of such dynamic effects as voltage regulator and governor action in addition to the classical machine inertia effect; test equivalents constructed by the method developed by applying them in transient and dynamic stability calculations on a sample system; develop and test a production grade program capable of applying the method to systems of up to 50 generators represented by the classical constant-voltage-behind-reactance model; and to investigate the feasibility of obtaining equivalents by direct measurement of actual system behavior instead of by construction from parametric data specifying system characteristics. These five objectives were achieved. A new technique was developed for the construction of electric power system equivalents which are useful in a broad range of studies, including transient and dynamic stability computations for interconnected systems. It is recommended that the method developed here be applied in both planning and operations studies so that its performance can be evaluated, and so that areas requiring further development can be revealed. (LCL)

• Research Organization: General Electric Co., Schenectady, NY (USA). Electric Utility Engineering Operation
• OSTI ID: 5960971
• Report Number(s): NP-2901020; ON: DE82901020
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
ELECTRICAL TRANSIENTS
ENERGY SYSTEMS
MATHEMATICAL MODELS
PERFORMANCE
POWER GENERATION
POWER SYSTEMS
POWER TRANSMISSION
STABILITY
SYSTEMS ANALYSIS
TRANSIENTS
VOLTAGE DROP