发明名称 |
AUTOTRANSFORMER SYSTEM REDUCING TOTAL HARMONIC DISTORTION |
摘要 |
There is disclosed an apparatus and method to reduce total harmonic distortion input into a 24-pulse autotransformer system and the autotransformer system itself. The 24-pulse autotransformer system is configured to receive an input of a first voltage and produce an output voltage of a second voltage. The system includes a pair of autotransformers coupled to an AC power source. One winding of each phase of the first autotransformer has a turn ratio to effect a decrease in the voltage across said winding over a symmetric voltage value and a second winding of each phase of the first autotransformer has a turn ratio to effect a decrease in the voltage across said winding over a symmetric voltage value, thereby reducing total harmonic distortion (THD) in the input current to the system without a zero sequence blocking transformer. |
申请公布号 |
EP2973966(A4) |
申请公布日期 |
2017.03.15 |
申请号 |
EP20140775825 |
申请日期 |
2014.03.05 |
申请人 |
Unico, Inc. |
发明人 |
GARLOW, Mark, E.;HAMMEL, William, S. |
分类号 |
H02M1/12;H01F27/33;H01F27/34;H02P27/06 |
主分类号 |
H02M1/12 |
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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