Title :
Estimation of grid parameters for the control of variable series reactance FACTS devices
Author :
Johansson, Nicklas P. ; Nee, Hans-Peter ; Ängquist, Lennart
Abstract :
For high performance control of flexible AC transmission system (FACTS) devices with controllable reactances, a representation of the surrounding grid is essential. Using such a model, an adaptive control strategy can be developed which optimizes the control in real time as the grid parameters change. This paper proposes such a generic grid model and derives the theory of how to estimate the main parameters using measurements of the line active power response from small step reactance changes. The estimation methods are verified using simple grid models in PSCAD simulations and more advanced grid models using SIMPOW simulations of a modified version of the CIGRE Nordic 32 grid. This work should be thought of as a foundation for developing control systems for variable series reactance FACTS devices
Keywords :
adaptive control; electric reactance; flexible AC transmission systems; parameter estimation; power measurement; power transmission control; CIGRE Nordic 32 grid; FACTS devices; PSCAD simulations; SIMPOW simulations; adaptive control strategy; flexible AC transmission system devices; generic grid model; grid parameters estimation; line active power response; reactances control; variable series reactance; Adaptive control; Control systems; Flexible AC transmission systems; Load flow; PSCAD; Parameter estimation; Power grids; Power system dynamics; Power system modeling; Power system simulation; FACTS; parameter estimation; power system stability; power transmission control; prediction methods;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1708919