Title :
Improving power quality with a variable speed synchronous condenser
Author :
Ferreira, A.C. ; Souza, L.M. ; Watanabe, E.H.
Author_Institution :
Fed. Univ. of Rio de Janeiro, Brazil
Abstract :
This paper explores the use of a wound rotor doubly fed induction machine (DFIM) as a controlled active and reactive power compensator, for voltage control in a power system as well as load-leveling device, combining the characteristics of a synchronous condenser and those of a low speed flywheel generator. Firstly an analytical model of the DFIM is presented, which is used to demonstrate how the power factor of the stator winding can be controlled with the converter. This analysis is confirmed with simulations. Secondly, a vector control scheme is presented which de-couples the reactive and active power control. This control is validated with SABER simulations.
Keywords :
asynchronous generators; compensation; control system analysis computing; control system synthesis; electric machine analysis computing; flywheels; load regulation; machine theory; machine vector control; power factor correction; power supply quality; power system control; reactive power control; stators; variable speed gear; analytical model; computer simulation; control design; control simulation; controlled active power compensator; controlled reactive power compensator; load-leveling device; low speed flywheel generator; power quality improvement; stator winding power factor; synchronous condenser; variable speed synchronous condenser; vector control scheme; wound rotor doubly fed induction machine;
Conference_Titel :
Power Electronics, Machines and Drives, 2002. International Conference on (Conf. Publ. No. 487)
Print_ISBN :
0-85296-747-0
DOI :
10.1049/cp:20020160
