Invention Grant
US09407134B2 Systems and methods for limiting current inrush in electric drive systems
有权
限制电力驱动系统中电涌涌流的系统和方法
- Patent Title: Systems and methods for limiting current inrush in electric drive systems
- Patent Title (中): 限制电力驱动系统中电涌涌流的系统和方法
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Application No.: US14247442Application Date: 2014-04-08
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Publication No.: US09407134B2Publication Date: 2016-08-02
- Inventor: Amin A. Moghadas , John M. Leuthen , Renato L. Pichilingue , Patrick B. Cochran
- Applicant: Baker Hughes Incorporated
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Law Offices of Mark L. Berrier
- Main IPC: H02P1/00
- IPC: H02P1/00 ; H02P1/28 ; H02P3/00 ; H02P7/06 ; H02M1/32 ; H02M1/36 ; H02M7/162 ; H02M7/219 ; H02M5/45 ; H02M5/458 ; H02M1/42

Abstract:
Systems and methods for controlling potentially damaging inrushes of current to the capacitor bank of an electric drive system when the voltage on the capacitor bank is low. In one embodiment, a variable speed drive has a converter that converts AC power to DC power, a capacitor bank that receives the DC power, and an inverter that converts the DC power stored by the capacitor bank to AC output power. The converter has three sections that rectify the phases of three-phase input power. Each section has at least one controlled rectifier component, and the rectifier components have switches connected to them in parallel. When the voltage on the capacitor bank is low, the controlled rectifiers and switches are controlled to prevent dangerously high inrushes of current to the capacitor bank.
Public/Granted literature
- US20150162864A1 Systems and Methods for Limiting Current Inrush in Electric Drive Systems Public/Granted day:2015-06-11
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