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公开(公告)号：US10978948B2
公开(公告)日：2021-04-13
申请号：US15211888
申请日：2016-07-15
Applicant: ABB Inc.
Inventor： Yu Du , Eddy Aeloiza , Rolando Burgos
Abstract: Direct-current-to-direct-current (DC-DC) power converters that include two or more multi-quadrant, multi-level, DC-DC, switching converter subcircuits, connected in parallel at respective input and output sides, so as to provide a multi-channel, multi-quadrant, multi-level configuration, are disclosed. The DC-DC power converters further include a control circuit configured to control the switching converter subcircuits so that corresponding switching semiconductors in each of the switching converter subcircuits are switched in an interleaved manner. In some embodiments, each of the switching converter subcircuits is a three-level, neutral-point-clamped, four-quadrant DC-DC converter circuit. In other embodiments, each of the switching converter subcircuits is a three-level, neutral-point-clamped, two-quadrant DC-DC converter circuit. In any of these embodiments, a filter capacitor may be connected between across a pair of output terminals at the output sides of the switching converter subcircuits.
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公开(公告)号：US20160329832A1
公开(公告)日：2016-11-10
申请号：US15211844
申请日：2016-07-15
Applicant: ABB Inc.
Inventor： Eddy Aeloiza , Rolando Burgos , Yu Du
CPC classification number: H02M7/68 , H02M1/08 , H02M1/12 , H02M1/14 , H02M1/42 , H02M7/487 , H02M7/493 , H02M7/81
Abstract: A multi-phase power converter includes two or more multi-phase, bi-directional, multi-level, switching power converter subcircuits, connected in parallel at respective AC and DC sides, so as to provide a multi-channel, bi-directional, multi-level configuration. The AC sides of the switching converter subcircuits are directly coupled to one another and to a multi-phase AC input via series interface reactors, and the DC sides of the switching converter subcircuits are directly connected to one another and to a common split-capacitor bank at each level of the multi-level outputs of the switching converter subcircuits. A control circuit is configured to selectively control one or more switching semiconductor devices in each of the switching converter subcircuits. In some embodiments, the control circuit includes a closed-loop zero-sequence controller and a zero-sequence generator configured to eliminate circulating current among the switching converter subcircuits and to balance voltages across levels of the common split-capacitor bank.
Abstract translation: 多相功率转换器包括两个或更多个在相应的AC和DC侧并联连接的多相，双向，多电平的开关功率转换器子电路，以便提供多通道，双向， 多级配置 开关转换器子电路的AC侧通过串联接口电抗器彼此直接耦合到多相交流输入，并且开关转换器子电路的DC侧直接连接到公共分离电容器组 在开关转换器子电路的多电平输出的每个电平处。 控制电路被配置为选择性地控制每个开关转换器子电路中的一个或多个开关半导体器件。 在一些实施例中，控制电路包括闭环零序控制器和零序发生器，该零序发生器被配置为消除开关转换器子电路之间的循环电流并平衡跨公共分离电容器组的电平的电压。
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公开(公告)号：US10727762B2
公开(公告)日：2020-07-28
申请号：US15211844
申请日：2016-07-15
Applicant: ABB Inc.
Inventor： Eddy Aeloiza , Rolando Burgos , Yu Du
Abstract: A multi-phase power converter includes two or more multi-phase, bi-directional, multi-level, switching power converter subcircuits, connected in parallel at respective AC and DC sides, so as to provide a multi-channel, bi-directional, multi-level configuration. The AC sides of the switching converter subcircuits are directly coupled to one another and to a multi-phase AC input via series interface reactors, and the DC sides of the switching converter subcircuits are directly connected to one another and to a common split-capacitor bank at each level of the multi-level outputs of the switching converter subcircuits. A control circuit is configured to selectively control one or more switching semiconductor devices in each of the switching converter subcircuits. In some embodiments, the control circuit includes a closed-loop zero-sequence controller and a zero-sequence generator configured to eliminate circulating current among the switching converter subcircuits and to balance voltages across levels of the common split-capacitor bank.
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