ADAPTIVE CONTROL OF GENERATOR EXCITATION.

Abstract:

The application of an adaptive self-tuning regulator for generator excitation is discussed. Terminal voltage error and speed error are combined, using variable weighting factors, to obtain a single signal. This signal is fed simultaneously to the regulator and the identification block. The algorithm used for the regulator is based on minimum-variance control strategy and is computed from an online estimated model of the generating unit using recursive-least-squares identification. Experimental results show that the regulator provides excellent damping for varying operating conditions and various types of disturbances such as step change in prime-mover speed, sudden loss of a transmission line, step change in reference voltage, sudden change in large loads, among others. 4 refs.

Año de publicación:

1987

Keywords:

Fuente:

scopus