Power conversion apparatus

H - Electricity – 02 – J

Patent

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Details

H02J 9/06 (2006.01)

Patent

CA 2732316

A power conversion apparatus includes an inverter for converting DC power to AC power for supply to a load, a converter for converting AC power from an AC power supply to DC power for supply to the inverter, a DC voltage converter for converting a voltage value of power stored in a storage battery to supply DC power from the storage battery to the inverter when power supply from the AC power supply is faulty, and a filter including a reactor and a capacitor, for removing harmonics generated by the inverter. The inverter includes a three-level circuit which is a multi-level circuit.

L'invention concerne un dispositif de conversion d'énergie (100) comprenant un inverseur (4) destiné à convertir une énergie en courant continu en énergie en courant alternatif et à alimenter une charge; un convertisseur (3) destiné à convertir l'énergie en courant alternatif provenant d'une source d'alimentation en courant alternatif (1) en énergie en courant continu et à alimenter l'inverseur (4); un convertisseur de tension en courant continu (7) destiné, si l'alimentation provenant de la source d'alimentation en courant alternatif (1) est anormale, à convertir la valeur de tension de l'énergie stockée dans une batterie de stockage (8) et à alimenter l'inverseur (4) en courant continu provenant de la batterie de stockage (8); et un filtre (5) qui comprend une bobine de réactance et un condensateur et qui élimine une harmonique générée par l'inverseur (4). L'inverseur (4) comprend un circuit à trois niveaux qui est un circuit multiniveau.

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