H - Electricity – 02 – M
Patent
H - Electricity
02
M
H02M 7/483 (2007.01) G01R 27/26 (2006.01) H02M 7/53 (2006.01)
Patent
CA 2671820
In order to provide an apparatus (1) for converting an electrical current with at least one phase module (2a, 2b, 2c), which has an AC voltage terminal (31,31,31) and at least one DC voltage terminal (p, n), wherein a phase module branch (6p1, 6p2, 6p3, 6n1, 6n2, 6n3) is formed between each DC voltage terminal (p, n) and the AC voltage terminal (31,31,31), and wherein each phase module branch (6p1, 6p2, 6p3, 6n1, 6n2, 6n3) has a series circuit comprising submodules (7), which each have a capacitor (8) and at least one power semiconductor (T1, T2), by means of which apparatus (1) aging of the energy store can be established in a simple manner, the invention proposes capacitor diagnosis means for the time-dependent determination of the capacitance of each capacitor (8).
Le but de la présente invention est de proposer un dispositif (1) de conversion d'un courant électrique à l'aide d'au moins un module de phase (2a, 2b, 2c) qui présente une borne de tension alternative (31,31,31) et au moins une borne de tension continue (p, n), une dérivation de module de phase (6P1, 6p2, 6p3, 6nl, 6n2, 6n3) étant formée entre chaque borne de tension continue (p, n) et la borne de tension alternative (31,31,31) et chaque dérivation de module de phase (6pl, 6p2, 6p3, 6nl, 6n2, 6n3) disposant d'un circuit série constitué de sous-modules (7) qui présentent chacun un condensateur (8) et au moins un semi-conducteur de puissance (T1, T2), qui permet de détecter de manière simple le vieillissement des accumulateurs d'énergie. L'invention concerne donc des moyens de diagnostic de condensateur pour déterminer en fonction du temps la capacité de chaque condensateur (8).
Dommaschk Mike
Dorn Joerg
Euler Ingo
Lang Joerg
Tu Quoc-Buu
Aktiengesellschaft Siemens
Smart & Biggar
LandOfFree
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