Detailed modeling and simulation of adjustable speed generator in Matlab/Simulink environment

This paper presents an instantaneous value based three-phase model for the adjustable speed generator (ASG). The basic configuration of the ASG is the same as that of induction motors with three-phase rotor windings. The ASG model has been developed for detailed real time simulations to develop a personal computer based ASG module. The ASG model includes a PWM inverter or a cycloconverter for the AC excitation and a speed governing control system including a governor and a water turbine system. To demonstrate the efficiency of the proposed model, real time nonlinear simulations have been performed on a DSP board installed in a personal computer (PC). A personal computer based ASG module can be set up by using the model for the Analog Power System Simulator at the Research Laboratory of Kyushu Electric Power Company