Adaptive Direct-Tuning control for diesel-electric power supply units

This paper deals with an adaptive control method to be used in the dc-link voltage controller of diesel-electric power supply units being arranged with both permanent magnet generator and three-phase boost-rectifier. The proposed control method is based on a suitable manipulation of the overall system transfer function to achieve an adaptive “closed form” expression for the parameters of the dc-link voltage controller. Such an approach allows overcoming the inherent non-linear behavior of the system, so that the overall system dynamic performance would not be affected by the system load conditions.