Invention Application
- Patent Title: ELECTRICAL SYSTEM HAVING A DC LINK
- Patent Title (中): 具有直流链路的电气系统
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Application No.: US13937802Application Date: 2013-07-09
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Publication No.: US20140008977A1Publication Date: 2014-01-09
- Inventor: Juha KOUKKARI , Tuomo LEPPINEN , Teemu RONKAINEN
- Applicant: ABB OY
- Applicant Address: FI Helsinki
- Assignee: ABB OY
- Current Assignee: ABB OY
- Current Assignee Address: FI Helsinki
- Priority: EP12175493.1 20120709
- Main IPC: H02J4/00
- IPC: H02J4/00
Abstract:
An electrical system and method include a DC link, a controlled rectifier connected between the DC link and a power source, an energy storage, a DC to DC converter connected between the DC link and the energy storage, a motor, and a DC to AC converter connected between the DC link and the motor. The converters are configured to transfer power in both directions. The rectifier controls the DC voltage of the DC link when the DC link voltage is in a first voltage range. The DC to DC converter controls the DC voltage of the DC link by charging the energy storage when the DC link voltage is in a second voltage range, which has higher voltage values than the first voltage range, or by discharging the energy storage when the DC link voltage is in a third voltage range, which has lower voltages than the first voltage range.
Public/Granted literature
- US09461475B2 Electrical system having a DC link Public/Granted day:2016-10-04
Information query
