Mathematical Study and Control of Diesel Rotary Uninterruptible Power Supply

The subject of the publication is recognition of the functions of the uninterruptible power supply system with a diesel engine called Diesel Rotary Uninterruptible Power Supply (DRUPS). The system features a diesel engine, a synchronous machine and an asynchronous machine as a kinetic energy storage and as well as two electromechanical exciters. In the paper a mathematical model of the DRUPS system was built and a typical work cycle simulated. Calculating the energy balance of the system resulted in the selection of its components at the design stage.