An Optimally Controlled Variable Output Wound Rotor Synchronous Machine

Abstract

This paper presents analytical and simulation results for a wound rotor synchronous machine in variable speed, variable output applications. To enable efficient control, an optimized LQR strategy is employed. For secure power supply to the loads, the machine only operates in the generating mode. The concept presented provides great flexibility in operation of the synchronous machine and is suitable for small hydropower and wind generation applications. The method enhances efficiency in the control of synchronous generators. 