Confirmation of test methods for synchronous machine dynamic performance models: Final report
The economic incentive to increase energy transfer beyond steady state operating limits requires system dynamic performance appraisal for a broad range of conditions. Synchronous machine behavior is one of the parameters affecting this performance. The principal objective of this study was a method, practical for utility companies, to determine synchronous machine parameters for dynamic performance analysis. Numerous methods have been proposed to derive synchronous machine models suitable for system dynamic performance analysis. Park's two-reaction-theory based linear models are adequate for the analysis of small perturbations. Analysis of large disturbances requires inclusion of non-linear effects such as magnetic saturation. Standstill frequency and rotating transient response testing was considered. The tests differed in risk of equipment damage, complexity of the data acquisition and difficulty in model derivation. The methods were comparably applied to four full sized machines and one laboratory machine. Due to proprietary data and software requirements, finite element analysis using design data was not considered. Aided by a computerized dynamic signal analyzer, the standstill frequency response (SSFR) method was demonstrated to be practical and cost effective. It is the method used by Consumers Power Company when model and parameters are to be determined in the field. Required equipment is commercially available and easily transported in a small van. On the electrically isolated machine, testing can be completed in two shifts. Due to its low power and voltage the tests pose no danger to the equipment. A person trained in Fourier analysis can complete model synthesis in about two weeks. Armature leakage reactance and a no load saturation curve are required for the derivation. 44 refs., 276 figs., 24 tabs.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (USA); Consumers Power Co., Jackson, MI (USA); Power Technologies, Inc., Schenectady, NY (USA)
- OSTI ID:
- 6832885
- Report Number(s):
- EPRI-EL-5736; ON: TI88015789
- Country of Publication:
- United States
- Language:
- English
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EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
DATA
DIAGRAMS
DOCUMENT TYPES
ECONOMICS
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
ENERGY TRANSFER
EQUATIONS
FLOWSHEETS
FOURIER ANALYSIS
INFORMATION
MACHINERY
MATHEMATICAL MODELS
NUMERICAL DATA
PERFORMANCE
POWER PLANTS
POWER SYSTEMS
PROGRESS REPORT
SYNCHRONIZATION