The Flywheel Energy Storage with Brushless DC Motor - the Practical Results

This paper presents the results of research of the rotating energy accumulator. In the study the brushless DC motor with permanent magnet (P_N=2,98 kW) was used as the motor-generator. The rotating mass made up the steel pipe. This accumulator stored about 4 MJ kinetic energy. The rotation speed was 6000 rpm. The inverter was constructed from intelligent power modules. The control of this one is based on module with FPGA and DSP