公开(公告)号：US20240186912A1

公开(公告)日：2024-06-06

申请号：US18286483

申请日：2022-05-26

Applicant: Eaton Intelligent Power Limited

Inventor： Tengyu Wu ,  Huaqiang Li ,  Xiaoling Li ,  Belly Lei

IPC: H02M7/06 ,  H02M7/217

CPC classification number: H02M7/06 ,  H02M7/217

Abstract: An apparatus includes an energy storage system electrically connected across a bus. the energy storage system comprising: a first energy storage element. and a second energy storage element electrically connected to the first energy storage element at an energy node that is between the first energy storage element and the second energy storage element: and an energy filter system electrically connected to the energy node. The energy filter system is configured to electrically connect to one phase of a multi-phase alternating current (AC) power system.

公开(公告)号：US12113458B2

公开(公告)日：2024-10-08

申请号：US17313322

申请日：2021-05-06

Applicant: Eaton Intelligent Power Limited

Inventor： Huaqiang Li ,  Xiaoling Li ,  Belly Lei

IPC: H02M7/537 ,  H02M1/32 ,  H02P6/20 ,  H02P6/28 ,  H02P27/08

CPC classification number: H02M7/537 ,  H02M1/32 ,  H02P6/20 ,  H02P6/28 ,  H02P27/08

Abstract: A system includes: a pre-charge circuit configured to produce direct current (DC) electrical power; a common DC bus; and a plurality of inverters, each inverter including: a local DC bus; a capacitor network connected to the local DC bus; an electrical network connected to the local DC bus, the electrical network configured to generate an alternating current (AC) drive signal; and a plurality of switching assemblies, each switching assembly being associated with one of the inverters, and each switching assembly configured to control whether the local DC bus and the capacitor network of the associated inverter are electrically connected to the common DC bus or to the pre-charge circuit.

公开(公告)号：US20210359621A1

公开(公告)日：2021-11-18

申请号：US17313322

申请日：2021-05-06

Applicant: Eaton Intelligent Power Limited

Inventor： Huaqiang Li ,  Xiaoling Li ,  Belly Lei

IPC: H02M7/537 ,  H02P6/28 ,  H02P6/20

Abstract: A system includes: a pre-charge circuit configured to produce direct current (DC) electrical power; a common DC bus; and a plurality of inverters, each inverter including: a local DC bus; a capacitor network connected to the local DC bus; an electrical network connected to the local DC bus, the electrical network configured to generate an alternating current (AC) drive signal; and a plurality of switching assemblies, each switching assembly being associated with one of the inverters, and each switching assembly configured to control whether the local DC bus and the capacitor network of the associated inverter are electrically connected to the common DC bus or to the pre-charge circuit.