A hydroelectric power generation system (20) generates electrical power for an electrical utilization system (72). A controller (42) obtains a requested output electrical power level from a hydro-turbine unit (70) by using a signal indicative of water head (h¿meas?) to control speed of an asynchronous rotary converter (50) coupled to the hydro-turbine unit and to control gate position of the hydro-turbine unit. The requested output electrical power level is applied from the hydro-turbine unit via the rotary converter to the electrical utilization system. In one embodiment, the controller (42B) accesses an updatable memory wherein Hydraulic Hill Chart information is stored. In another embodiment, the controller (42C) also includes a real-time automatic governor which uses a signal indicative of ac transmission frequency to the electrical utilization system to control the output electrical power level of the rotary converter.

Title
Asynchronous conversion method and apparatus for use with variable speed turbine hydroelectric generation
Application Number
PCT/US1996/015057
Publication Number
1997/016627
Application Date
September 20, 1996
Publication Date
May 9, 1997
Inventor
Weeber Konrad
Larsen Einar Vaugh
Ardley Glenn Henry
Mclaren Donald Gordon
Runkle Mark Andrew
Agent
STECKLER Henry I
Assignee
General Electric Company
IPC
H02P 09/48
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