Skip to Main Content
This work is to implement and simulate the DC excitation control of a wind induction synchronous generator (WISG) under autonomous generation mode using a micro-controller with reduced instruction set chip (RISC). The proposed DC excitation control is obtained from the generated AC voltage of the studied WISG through a step-down transformer, a rectifier, and a DC-to-DC buck converter to modulate the desired DC voltage of the rotor winding. Due to high-speed modulation capability of the proposed micro-controller, the voltage variation of the studied autonomous WISG under loading conditions can be effectively compensated. The studied WISG system is practically implemented in a laboratory 300 W wound-rotor induction machine driven by a DC motor. From the analyzed results, it can be concluded that the proposed WISG controlled by the RISC can provide good voltage profile under various loading and switching conditions.
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on (Volume:2 )
Date of Conference: 6-9 Dec. 2004