Invention Grant
US08149551B2 Systems and methods involving motor drive ground fault interrupts
有权
涉及电机驱动器接地故障中断的系统和方法
- Patent Title: Systems and methods involving motor drive ground fault interrupts
- Patent Title (中): 涉及电机驱动器接地故障中断的系统和方法
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Application No.: US12421256Application Date: 2009-04-09
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Publication No.: US08149551B2Publication Date: 2012-04-03
- Inventor: Sastry V. Vedula , Carl A. Wagner
- Applicant: Sastry V. Vedula , Carl A. Wagner
- Applicant Address: US CT Windsor Locks
- Assignee: Hamilton Sundstrand Corporation
- Current Assignee: Hamilton Sundstrand Corporation
- Current Assignee Address: US CT Windsor Locks
- Agency: Cantor Colburn LLP
- Main IPC: H02H5/04
- IPC: H02H5/04
Abstract:
A method comprises determining whether a ground fault on a bus (110) operative to drive the system (100) exceeds a first threshold level, (502) receiving values of phase currents of a first motor, (504) calculating a sum of the values of the phase currents of the first motor (106) responsive to determining that the ground fault on the bus exceeds the first threshold value, and (504) determining whether the sum of the values of the phase currents of the first motor (106) exceeds a second threshold value (506).
Public/Granted literature
- US20100259099A1 SYSTEMS AND METHODS INVOLVING MOTOR DRIVE GROUND FAULT INTERRUPTS Public/Granted day:2010-10-14
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