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1. (WO2018200178) METHOD AND SYSTEM FOR ENHANCING ELECTRICAL POWER PRODUCTION BY A POWER GENERATION SYSTEM

Pub. No.:    WO/2018/200178    International Application No.:    PCT/US2018/026656
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 10 01:59:59 CEST 2018
IPC: H02J 3/38
H02S 10/12
H02S 40/32
Applicants: GENERAL ELECTRIC COMPANY
Inventors: GANIREDDY, Govardhan
TIWARI, Arvind, Kumar
KOLHATKAR, Yashomani, Y.
KLODOWSKI, Anthony, Michael
BOLLENBECKER, John, Leo
SCHNETZKA, Harold, Robert
WAGONER, Robert, Gregory
PADMARAO, Veena
Title: METHOD AND SYSTEM FOR ENHANCING ELECTRICAL POWER PRODUCTION BY A POWER GENERATION SYSTEM
Abstract:
A power generation system (100, 200, 300, 400) is presented. The power generation system includes a prime mover (102), a doubly-fed induction generator (DFIG) (104) having a rotor winding (126) and a stator winding (122), a rotor-side converter (106), a line-side converter (108), and a secondary power source (110, 401) electrically coupled to a DC-link (128). Additionally, the power generation system includes a control sub-system (112, 212, 312) having a controller, and a plurality of switching elements (130, and 132 or 201). The controller is configured to selectively control switching of one or more switching elements (130, and 132 or 201) based on a value of an operating parameter corresponding to at least one of the prime mover, the DFIG, or the secondary power source to connect the rotor-side converter in parallel to the line-side converter to increase an electrical power production by the power generation system.