Excitation controller and excitation control method for...

Details Excitation controller and excitation control method for... Excitation controller and excitation control method for...

H - Electricity

02

J

H02J 3/04 (2006.01) H02J 3/18 (2006.01) H02K 19/38 (2006.01) H02P 9/10 (2006.01)

Patent

CA 2312016

An excitation controller comprises a reactive current detector for detecting a reactive current output from a synchronous machine connected, by way of a tap-changer-equipped transformer equipped with a tap changer for changing taps under load conditions, to a transmission system, a tap controller for setting a tap ratio of the tap-changer-equipped transformer according to an output terminal voltage of the synchronous machine, and a voltage setter for setting a synchronous machine's-side reference voltage of the tap-changer-equipped transformer on the basis of a transmission system's-side reference voltage of the tap-changer-equipped transformer, the tap ratio set by the tap controller, and the reactive current detected by the reactive current detector. The excitation controller further includes a control unit for controlling an excitation system for exciting the synchronous machine according to the reference voltage set by the voltage setter.

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