Invention Grant
US07929323B2 Method and apparatus for pre-charging power converters and diagnosing pre-charge faults
有权
用于预充电功率转换器和诊断预充电故障的方法和装置
- Patent Title: Method and apparatus for pre-charging power converters and diagnosing pre-charge faults
- Patent Title (中): 用于预充电功率转换器和诊断预充电故障的方法和装置
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Application No.: US12239432Application Date: 2008-09-26
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Publication No.: US07929323B2Publication Date: 2011-04-19
- Inventor: Robert H. Schmidt
- Applicant: Robert H. Schmidt
- Applicant Address: US OH Mayfield Heights
- Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee Address: US OH Mayfield Heights
- Agency: Fay Sharpe LLP
- Agent R. Scott Speroff; John M. Miller
- Main IPC: H02H7/125
- IPC: H02H7/125 ; H02M5/42
Abstract:
Power conversion systems and diagnostic techniques are presented for detecting suspected converter faults when a pre-charge circuit is engaged during system startup, in which known or estimated system characteristics are used to derive expected converter voltage values or rate of change values and the levels are measured during startup to ascertain whether the pre-charge circuit or other converter components are faulted.
Public/Granted literature
- US20100080022A1 METHOD AND APPARATUS FOR PRE-CHARGING POWER CONVERTERS AND DIAGNOSING PRE-CHARGE FAULTS Public/Granted day:2010-04-01
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