Optimization of reactive volt-ampere (VAR) sources in system planning: Volume 2, User's manual

Technical Report · Mon Feb 01 00:00:00 EST 1988

OSTI ID:5495270

Lebow, W M; Nadira, R

This volume contains the User's Guide for the VAROPT prototype computer program developed under EPRI-RP-2109-1 to optimize the location and sizes of new reactive sources in large-scale power systems with up to 1500 buses. This guide contains complete discussions of all aspects related to program installation and execution, as well as several examples and test cases. VAROPT is an implementation of the two-level approach for the optimization of reactive source allocation in power systems developed during the course of this project. This two-level approach takes advantage of the natural distinction between the var dispatch in system operation (Level 1) and the var allocation in system planning (Level 2). Level 1 is an optimal power flow problem formulated as a nonlinear programming problem and solved using a projected augmented Lagrangian technique. Level 1 can handle contingency constraints in either a corrective or in a preventive mode. Level 2 is an optimal reactive source expansion problem formulated as a mixed linear-integer programming problem and solved using a branch-and-bound technique. The two levels are related together using a very powerful and optimal decomposition technique known as the Generalized Benders Decomposition. Initial testing of the VAROPT package with real power systems of different sizes and characteristics have confirmed that the programs are a very valuable tool for reactive source allocation.

• Research Organization: Scientific Systems, Inc., Cambridge, MA (USA)
• OSTI ID: 5495270
• Report Number(s): EPRI-EL-3729-CCM-Vol.2; ON: TI88920216
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
INTERCONNECTED POWER SYSTEMS
PLANNING
V CODES
VAR CONTROL SYSTEMS
OPTIMIZATION
DEC COMPUTERS
IBM COMPUTERS
MANUALS
POWER TRANSMISSION
COMPUTER CODES
COMPUTERS
CONTROL SYSTEMS
DOCUMENT TYPES
ENERGY SYSTEMS
POWER SYSTEMS
200100* - Fossil-Fueled Power Plants- Power Plants & Power Generation