Reactive power/voltage control in distribution systems under uncertain environment
- 1 January 2008
- journal article
- Published by Institution of Engineering and Technology (IET) in IET Generation, Transmission & Distribution
- Vol. 2 (5), 752-763
- https://doi.org/10.1049/iet-gtd:20080095
Abstract
A novel method for reactive power/voltage control in distribution systems under uncertain data environment is presented. This is achieved by minimising boundary real power loss or boundary total real power demand while satisfying constraints on boundary bus voltage magnitudes. Such an approach is more realistic and intuitively satisfying as compared with the crisp solution with deterministic data assumption. On-load tap changing facility of the transformer at the substation and the shunt capacitors at the substation and feeders are used as control variables. A truly nonlinear fuzzy distribution power flow is used, in which simultaneous non-statistical uncertainties in load forecast, load model coefficients and network parameters are incorporated. Genetic algorithm is used to solve the problem. In order to demonstrate the effectiveness of the proposed method, results for balanced 30-bus and unbalanced 25-bus and modified 123-bus systems have been obtained.Keywords
This publication has 20 references indexed in Scilit:
- Fuzzy Distribution Power Flow for Weakly Meshed SystemsIEEE Transactions on Power Systems, 2006
- Integrated fuzzy state estimation and load flow analysis in distribution networksIEEE Transactions on Power Delivery, 2003
- Fuzzy multi-objective decisions in the problem of optimal distribution load flowElectric Power Systems Research, 2001
- Neural networks for combined control of capacitor banks and voltage regulators in distribution systemsIEEE Transactions on Power Delivery, 1996
- Volt/var control algorithm for modern distribution management systemIEEE Transactions on Power Systems, 1995
- Efficient integer optimization algorithms for optimal coordination of capacitors and regulatorsIEEE Transactions on Power Systems, 1990
- Volt/Var Control on Distribution Systems with Lateral Branches Using Shunt Capacitors and Voltage Regulators Part I: The Overall ProblemIEEE Transactions on Power Apparatus and Systems, 1985
- Optimal Voltage Dependent Continuous-Time Control of Reactive Power on Primary FeedersIEEE Transactions on Power Apparatus and Systems, 1984
- Discrete-Tap Control Scheme for Capacitive Compensation of Distribution FeedersIEEE Transactions on Power Apparatus and Systems, 1984
- Optimal Design and Control Scheme for Continuous Capacitive Compensation of Distribution FeedersIEEE Transactions on Power Apparatus and Systems, 1983