发明授权
US08278934B2 Robust AC chassis fault detection using PWM sideband harmonics
有权
使用PWM边带谐波的鲁棒交流电机箱故障检测
- 专利标题： Robust AC chassis fault detection using PWM sideband harmonics
- 专利标题（中）： 使用PWM边带谐波的鲁棒交流电机箱故障检测
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申请号： US12371241申请日： 2009-02-13
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公开(公告)号： US08278934B2公开(公告)日： 2012-10-02
- 发明人: Michael Kon-King Wang
- 申请人： Michael Kon-King Wang
- 申请人地址： US NY Johnson City
- 专利权人： BAE Systems Controls Inc.
- 当前专利权人： BAE Systems Controls Inc.
- 当前专利权人地址： US NY Johnson City
- 代理机构： Scully, Scott, Murphy & Presser, P.C.
- 代理商 Paul J. Esatto, Jr.
- 主分类号： G01R31/14
- IPC分类号： G01R31/14 ; G01R31/08
摘要：
A method, apparatus and computer program for detecting an AC chassis fault on one or more DC/AC converters having a load is disclosed, including receiving a chassis voltage VChassis signal from between DC link and a chassis ground from the DC/AC converter, capturing a side band harmonic of the chassis voltage VChassis signal, determining a peak magnitude value related to the side band harmonic, comparing the peak magnitude value to a predetermined threshold value, wherein if said peak magnitude value equals or exceeds the predetermined threshold value, an AC chassis fault condition is detected.
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