发明名称 |
MULTI-PHASE AC/AC STEP-DOWN CONVERTER FOR DISTRIBUTION SYSTEMS |
摘要 |
<p>A step-down AC/AC converter for use in an electric distribution system includes at least one chopper circuit for each one of a plurality of phases of the AC power, each chopper circuit including a four-quadrant switch coupled in series between primary and secondary sides of the chopper circuit and a current-bidirectional two-quadrant switch coupled between the secondary side of the chopper circuit and a common node. Each current-bidirectional two-quadrant switch is oriented in the same direction, with respect to the secondary side of the corresponding chopper circuit and the common node. The converter further includes a control circuit configured to pulse-width-modulate control inputs of the switches, to convert a first multiphase AC voltage at the primary sides of the chopper circuits to a second multiphase AC voltage at the secondary sides of the chopper circuits, the second multiphase AC voltage being lower in voltage than the first multiphase AC voltage.</p> |
申请公布号 |
WO2015119708(A1) |
申请公布日期 |
2015.08.13 |
申请号 |
WO2014US68697 |
申请日期 |
2014.12.05 |
申请人 |
ABB TECHNOLOGY AG;AELOIZA, EDDY;BURGOS, ROLANDO |
发明人 |
AELOIZA, EDDY;BURGOS, ROLANDO |
分类号 |
H02M5/293 |
主分类号 |
H02M5/293 |
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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