Method for operating a frequency converter of a generator...

Details Method for operating a frequency converter of a generator... Method for operating a frequency converter of a generator...

2004-03-12

2009-10-20

Ponomarenko, Nicholas (Department: 2834)

Prime-mover dynamo plants

Electric control

Fluid-current motors

C290S028000, C290S055000

Reexamination Certificate

active

07605487

ABSTRACT:
The method for operating a frequency converter (26) of a generator (14) in particular of a wind energy turbine (10), in the event of a substantial grid voltage drop, wherein the frequency converter (26) comprises a generator-side power converter (32), to be connected to the generator (14), a grid-side power converter (28) to be connected to the voltage grid (18), and a DC link circuit (30) for connecting the generator-side power converter (32) to the grid-side power converter (28), comprises the step of generating the amount of reactive current to be supplied to the grid (18) by controlling the frequency converter (26).

REFERENCES:
patent: 5225712 (1993-07-01), Erdman
patent: 5798631 (1998-08-01), Spee et al.
patent: 6134124 (2000-10-01), Jungreis et al.
patent: 6281595 (2001-08-01), Sinha et al.
patent: 6784634 (2004-08-01), Sweo
patent: 2823381 (2002-10-01), None
patent: WO 02/103879 (2002-12-01), None
Hoffmann W: “Optimal reactive power splitting in wind power plants controlled by double-fed induction generator” Africon, 1999 IEEE Cape Town, South Africa Sep. 28-Oct. 1, 1999, Piscataway, NJ, USA, IEEE, US.

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