发明名称 |
Impedance measurement using line-to-line current injection |
摘要 |
An unbalanced line-to-line current is injected at an injected frequency in a three-phase ac circuit. A first set of voltages and currents are obtained. A first set of transformed voltages and transformed currents are produced. The circuit is injected with a second unbalanced line-to-line current at a frequency linearly independent of the injected frequency. A second set of voltages and current are obtained. A second set of transformed voltages and transformed currents are produced The impedance of a source portion and a load portion of the circuit are calculated using the first and second set of transformed voltages, and the first and second set of transformed currents.
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申请公布号 |
US7746084(B2) |
申请公布日期 |
2010.06.29 |
申请号 |
US20070867965 |
申请日期 |
2007.10.05 |
申请人 |
NEWPORT NEWS SHIPBUILDING AND DRY DOCK COMPANY;THE CURATORS OF THE UNIVERSITY OF MISSOURI |
发明人 |
BELKHAYAT MOHAMED;HUANG JING;CORZINE KEITH |
分类号 |
G01R27/28 |
主分类号 |
G01R27/28 |
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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