Control system for AC motor/generator of secondary AC excitation

Details Control system for AC motor/generator of secondary AC excitation Control system for AC motor/generator of secondary AC excitation

1986-10-06

1988-05-03

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Secondary circuit control

318819, 318820, 318821, 318822, 323212, H02P 126

Patent

active

047422882

ABSTRACT:
A control system for controlling the load of an AC motor/generator of secondary AC excitation type connected to a power system in parallel to at least a synchronous machine. The AC motor/generator has the secondary excitation winding thereof controlled in the amount of excitation so as to generate an output in accordance with an external output command. In the case of variation of power flow between the power system and the synchronous machine, the output command is corrected in accordance with the variation, and the amount of the secondary excitation is controlled by the corrected output command, whereby the variation of power flow between the power system and the synchronous machine is absorbed by the AC motor/generator thereby to prevent the synchronous machine from stepping out.

REFERENCES:
patent: 4590416 (1986-05-01), Porche et al.

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