An Ideal Transformer UPFC Model, OPF First-Order Sensitivities, and Application to Screening for Optimal UPFC Locations
- 29 January 2007
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Systems
- Vol. 22 (1), 68-75
- https://doi.org/10.1109/tpwrs.2006.889141
Abstract
This paper presents a screening technique for greatly reducing the computation involved in determining the optimal location of a unified power flow controller (UPFC) in a power system. The first-order sensitivities of the generation cost with respect to UPFC control parameters are derived. This technique requires running only one optimal power flow (OPF) to obtain UPFC sensitivities for all possible transmission lines. To implement a sensitivity-based screening technique for guidance in optimally locating a single UPFC in a power system, we propose a new UPFC model, which consists of an ideal transformer with a complex turns ratio and a variable shunt admittance. In this model, the UPFC control variables do not depend explicitly on UPFC input and output currents and voltages. Accordingly, this model does not require adding extra buses for UPFC input and output terminals. IEEE five-, 14- and 30-bus systems were used to illustrate the techniqueKeywords
This publication has 8 references indexed in Scilit:
- Optimal location of the unified power flow controller in electrical power systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Estimation of UPFC value using sensitivity analysisPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- A screening technique for optimally locating phase shifters in power systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A parallel tabu search based method for determining optimal allocation of FACTS in power systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Optimising location of unified power flow controllers using the method of augmented Lagrange multipliersIEE Proceedings - Generation, Transmission and Distribution, 1999
- Use of UPFC for optimal power flow controlIEEE Transactions on Power Delivery, 1997
- The unified power flow controller: a new approach to power transmission controlIEEE Transactions on Power Delivery, 1995
- Unified power-flow control concept for flexible AC transmission systemsIEE Proceedings C Generation, Transmission and Distribution, 1992