User's guide to producing coherency-based equivalents for transient-stability studies. [DYNEQ3]

Technical Report · Wed Dec 01 04:00:00 EST 1982

OSTI ID:6607040

Mitsche, J V

This report is the user's guide for a computer program, called DYNEQ3, that is presently available from the EPRI Electric Power Software Center. This program, the Expanded Dynamic Equivalents Program (DYNEQ3), is described in EPRI publication EL-1132, the final report of RP763, Phase II, Dynamic Equivalents for Transient Stability Studies of Very Large Synchronous Networks. DYNEQ3 is a preproduction grade expanded version of the Dynamic Equivalents Program DYNEQ1. This program is an expansion (in capabilities and size) of the DYNEQ2 program, which it supersedes. This program reduces a large-scale system model to a small dynamic equivalent model for use in transient stability studies. It performs the same function as DYNEQ1 (see EPRI Report EL-456) but is dimensioned larged enough to model the entire eastern US interconnected system. Unlike the smaller DYNEQ1, classical transient stability models are used. The dynamic equivalent model is typically two to six times more efficient than the original model in terms of computer running time and storage. The program has the capacity of handling 10,000 buses, 16,000 lines, and 2000 generators. It accepts load flow data in common format; output is in common and Philadelphia Electric Co. (PECO) format. The equivalents produced are judged valid for about three seconds after the disturbance. The most difficult aspect of program use is typically the collection and input of stability data. An IBM Fortran level H compiler or equivalent with bout 2300K of memory is required for a 10,000 bus case. Use of a plotter is optional.

• Research Organization: Consumers Power Co., Jackson, MI (USA)
• OSTI ID: 6607040
• Report Number(s): EPRI-EL-2778-CCM; ON: DE83901140
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
COMPUTER CODES
COMPUTERIZED SIMULATION
D CODES
DOCUMENT TYPES
ELECTRICAL TRANSIENTS
ENERGY SYSTEMS
INTERCONNECTED POWER SYSTEMS
MANUALS
POWER SYSTEMS
SIMULATION
STABILITY
TRANSIENTS
VOLTAGE DROP