H - Electricity – 02 – M
Patent
H - Electricity
02
M
H02M 7/48 (2007.01)
Patent
CA 2623157
The invention relates to a method for controlling a power converter comprising at least two phase modules, each of which is provided with an upper and a lower valve leg that is equipped with at least two serially connected bipolar subsystems, respectively. According to the invention, the switching actions in the two valve legs (T1, T2; T3, T4; T5, T6) of each phase module (100) of the multiphase power converter having distributed energy stores are performed at a freely selected interval (.DELTA.TZ) rather than synchronously. The inventive control method for a multiphase power converter having distributed energy stores thus makes it possible to dynamically regulate valve leg currents (i11, i12, i21, i31, i32).
L'invention concerne un procédé pour commander un convertisseur de courant polyphasé au moyen d'au moins deux modules de phase comportant deux bras de valves, un supérieur et un inférieur, dotés chacun d'au moins deux sous-systèmes bipolaires montés en série. Selon l'invention, les commutations dans les deux bras de valves (Tl, T2; T3, T4; T5, T6) de chaque module de phase (100) du convertisseur de courant polyphasé sont réalisées au moyen d'accumulateurs d'énergie répartis non plus de façon synchrone mais dans un laps de temps librement choisi (?TZ). Ainsi, ce procédé de commande d'un convertisseur de courant polyphasé au moyen d'accumulateurs d'énergie répartis permet de réguler de manière dynamique les courants des bras de valves (i11, i12, i21, i31, i32).
Aktiengesellschaft Siemens
Smart & Biggar
LandOfFree
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