发明名称 |
METHOD AND APPARATUS FOR GRID IMPEDANCE DETECTION |
摘要 |
A method and apparatus for monitoring an AC line for impedance change. In one embodiment, the method, comprises superimposing a tone on an AC current coupled to the AC line, wherein the tone is a higher frequency than an AC voltage waveform on the AC line; applying a correlation over a sampled AC voltage waveform, obtained by sampling the AC voltage waveform, to generate a correlated signal; and determining whether at least one change in characteristic of the correlated signal occurs. |
申请公布号 |
WO2012166933(A1) |
申请公布日期 |
2012.12.06 |
申请号 |
WO2012US40229 |
申请日期 |
2012.05.31 |
申请人 |
ENPHASE ENERGY, INC.;BARNES, ANDREW;ACKER, BRIAN |
发明人 |
BARNES, ANDREW;ACKER, BRIAN |
分类号 |
G01R27/16 |
主分类号 |
G01R27/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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