Voltage Control Using Eigen Value Decomposition of Fast Decoupled Load Flow Jacobian
For power system operators, this provides a computationally efficient method to correct voltage deviations, but it is an incremental improvement over existing techniques.
This paper proposes an optimal algorithm for voltage control in power systems by identifying buses that maximally affect voltage violations and setting their set-points, using Eigen-Value Decomposition of the fast decoupled load flow Jacobian. The method is verified on IEEE 9, 14, 30, and 57 bus systems.
Voltage deviations occur frequently in power systems. If the violation at some buses falls outside the prescribed range, it will be necessary to correct the problem by controlling reactive power resources. In this paper, an optimal algorithm is proposed to solve this problem by identifying the voltage buses, that will have a maximum effect on the affected buses, and setting their new set-points. This algorithm is based on the Eigen-Value Decomposition of the fast decoupled load flow Jacobian matrix. Different Case studies including IEEE 9, 14, 30 and 57 bus systems have been used to verify the method.