A Supervised Build-up Voltage Process of an Isolated Induction Generator Driven at a Constant Speed and Supply DC Load

Abstract

This paper presents a new method for the voltage build-up process of an isolated-loaded induction generator, which delivers an active power to the load via a converter connected to a single capacitor on the dc side. So, during the voltage build-up process, the necessary stator currents references to be injected by the converter can be calculated from the desired active power to be sent to the load which is determined by the DC-bus voltage regulation, from the reactive power required for the machine magnetization and finally from the three instantaneous voltages induced. Since the converter/capacitor model is non linear, a fast and simple control strategy based on the input-output feedback linearization technique is applied to assure the dc-bus voltage regulation. The computer simulations are provided to verify the validity of the proposed control algorithm.