A preventive strategy method for voltage and reactive power dispatch

Journal Article · Mon Jul 01 00:00:00 EDT 1985 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1985.319197· OSTI ID:6493967

Sun, D T.W.; Shoults, R R

A preventive control program for voltage and reactive power dispatch is developed to enhance a system's capability to cope with outages. In this program, not only the base case but also associated contingency cases have been considered. Therefore, it is referred to as the Global VAR Dispatch Method. The global VAR dispatch method is developed by extending the reactive-power part of the decoupled optimal load flow program by incorporating outagecontingency constraints into the scheme to give an optimal steady-state secure operating point. The reactive power control variables (i.e., generator terminal voltage magnitudes, transformer taps, shunt capacitors/reactors) of the base case are optimized within their limits according to a defined objective, so that violations on state variables (i.e., generator var outputs, load-bus voltage magnitudes, reactive power flows in transmission lines) are minimized in both the base case and under selected contingency system operating conditions. The global VAR dispatch method is formulated, in the principle of the (P-/theta/) and (Q-V) decomposition, with the reduced gradient method. The reciprocity theorem, linearized network models, and the compensation technique are employed to achieve a very efficient computational feature.

• Research Organization: Consolidated Edison Company of New York, Inc., New York, NY
• OSTI ID: 6493967
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Vol. PAS-104:7
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING
POLICY AND ECONOMY
POWER DISTRIBUTION SYSTEMS
COMPUTERIZED SIMULATION
LOAD MANAGEMENT
CONSTRAINTS
CONTROL
ELECTRICAL TRANSIENTS
OPERATION
OPTIMIZATION
OUTAGES
OVERVOLTAGE
VAR CONTROL SYSTEMS
CONTROL SYSTEMS
MANAGEMENT
SIMULATION
TRANSIENTS
VOLTAGE DROP
296000* - Energy Planning & Policy- Electric Power