Adaptive voltage regulator for secondary reactive power control in a power station

This paper is aimed to present the performance of a B-spline neural network controller to regulate the reactive power provision from synchronous machines. Due to the fact that power systems possess non-stationary parameters and changing settings, adaptive control schemes are preferred. Control technology must ensure its performance in terms of power system´s practical operation to address the diversity of loads connected to maximize the available resources. The B-spline neural network is a convenient tool to implement the adaptive voltage regulator, with the possibility of carrying out this task on-line considering the systems´ non-linearities. The reactive power contribution is based on the premise that each machine must provide an amount according to its nominal operating capacity. The applicability of the proposal is demonstrated by simulation of a multi-machine power system.