US 9,812,872 B2
Method for synchronizing a feed voltage with a network voltage
Norbert Benesch, Heroldsberg (DE); and Lutz Namyslo, Hausen (DE)
Assigned to Siemens Aktiengesellschaft, München (DE)
Appl. No. 14/380,318
Filed by Siemens Aktiengesellschaft, München (DE)
PCT Filed Jan. 31, 2013, PCT No. PCT/EP2013/051918
§ 371(c)(1), (2) Date Aug. 21, 2014,
PCT Pub. No. WO2013/124133, PCT Pub. Date Aug. 29, 2013.
Claims priority of application No. 12156495 (EP), filed on Feb. 22, 2012.
Prior Publication US 2015/0035366 A1, Feb. 5, 2015
Int. Cl. H02J 7/34 (2006.01); H02J 1/10 (2006.01); H02J 3/38 (2006.01); H02J 4/00 (2006.01); H02J 3/00 (2006.01); H02J 3/42 (2006.01); G06F 19/00 (2011.01)
CPC H02J 4/00 (2013.01) [H02J 3/00 (2013.01); H02J 3/42 (2013.01); G06F 19/00 (2013.01); H02J 3/383 (2013.01); H02J 3/386 (2013.01); Y02E 10/563 (2013.01); Y02E 10/763 (2013.01); Y10T 307/549 (2015.04)] 16 Claims
OG exemplary drawing
 
1. A method for synchronizing a feed voltage of a first current-limited network former with a network voltage of an electrical energy supply network comprising additional second network formers having second static characteristic curves and electrical loads, the method comprising:
determining, based on a first static characteristic curve of the first network former, a property of the feed voltage of the first network former, said property selected from frequency, phase position and root-mean-square value,
comparing with the first static characteristic curve of the first network former the determined property of the feed voltage of the first network former with a feed power of the first network former,
the electrical energy supply network receiving the feed power of the first network former at the feed voltage of the first network former, and
adjusting the property of the feed voltage of the first network former to a specified value that is smaller than or equal to an actual value of a corresponding property of the network voltage resulting from the second static characteristic curves of the additional second network formers, when a limit for the feed power of the first network former is reached, said feed voltage of the first network former being applied to the electrical energy supply network after receipt of a predetermined switch-on signal, said property of the feed voltage of the first network former being sequentially controlled after receipt of the predetermined switch-on signal based on a desired curve, wherein the desired curve is ramp-shaped.