Title :
A flywheel energy storage system with Matrix Converter controlled Permanent Magnet Synchronous Motor
Author :
Gambôa, Paulo ; Pinto, S. Ferreira ; Silva, J. Fernando ; Margato, Elmano
Author_Institution :
DEEA, Inst. Super. de Eng. de Lisboa, Lisbon
Abstract :
This paper presents an experimental characterization of a flywheel energy storage system. The device is based on steel seamless tube mounted as a vertical axis flywheel storing kinetic energy. The motor/generator is a permanent magnet synchronous machine controlled by an AC-AC matrix converter. The matrix control method uses a discrete-time model of the converter system to predict the future values of the input currents for all the 27 possible output voltage vectors generated by the matrix converter. An optimal controller minimizes current errors using a weighted cost functional. This flywheel and control process is intended for dynamic voltage restorer (DVR) to mitigate voltage sags.
Keywords :
AC-AC power convertors; discrete time systems; flywheels; machine control; matrix convertors; optimal control; permanent magnet motors; synchronous motors; AC-AC matrix converter; control process; discrete-time model; dynamic voltage restorer; flywheel energy storage system; kinetic energy; permanent magnet synchronous motor; steel seamless tube; vertical axis flywheel; voltage sags; Control systems; Energy storage; Flywheels; Kinetic energy; Matrix converters; Permanent magnet motors; Steel; Synchronous generators; Synchronous motors; Voltage control;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4799861
