-
公开(公告)号：US10256732B2
公开(公告)日：2019-04-09
申请号：US14885675
申请日：2015-10-16
摘要： A medium voltage direct current (MVDC) collector system for renewable power generation facilities includes at least one renewable energy generation device. The MVDC collector system also includes at least one direct current (DC)-to-DC (DC/DC) power converter coupled to the at least one renewable energy generation device. The at least one DC/DC power converter is configured to shift a switching operation of the DC/DC power converter between full-wave conversion and half-wave conversion. The MVDC collector system further includes at least one controller coupled to the at least one DC/DC power converter. The at least one controller is configured to regulate shifting the switching operation of the at least one DC/DC power converter between full-wave conversion and half-wave conversion.
-
公开(公告)号：US20180366270A1
公开(公告)日：2018-12-20
申请号：US15624153
申请日：2017-06-15
摘要： A low inductance device includes a capacitor and an enclosure configured to enclose the capacitor, wherein the enclosure comprises an insulating material. The low inductance device also includes a conductive outer layer configured to surround at least a portion of an exterior surface of the enclosure.
-
公开(公告)号：US10141851B2
公开(公告)日：2018-11-27
申请号：US15081339
申请日：2016-03-25
摘要： A direct current (DC) to DC power converter includes a first converter for converting a first DC bus voltage into a first high frequency AC voltage and a second converter for converting a second high frequency alternating current (AC) voltage into a second DC bus voltage. The DC to DC converter also includes a resonant circuit for coupling the first bus converter and the second bus converter and a controller for providing switching signals to the first converter and the second converter to operate the power converter in a soft switching mode. The resonant circuit includes a high frequency transformer coupled between the first converter and the second converter and an auxiliary converter coupled in series with a first resonant inductor and the high frequency transformer. The resonant circuit further includes second inductor coupled across a first winding of the high frequency transformer. An auxiliary voltage generated by auxiliary converter is added in series with an output voltage of the first converter.
-
公开(公告)号：US10110149B2
公开(公告)日：2018-10-23
申请号：US15399803
申请日：2017-01-06
发明人： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Ravisekhar Nadimpalli Raju , Harold Robert Schnetzka
摘要： Systems and methods for grounding power generation systems with silicon carbide MOSFET power converters are provided. A power generation system can include a power generator comprising a multiphase rotor configured to generate multiphase alternating current power at a first voltage and a power converter comprising one or more silicon carbide MOSFETs and an isolation transformer. The power converter can be configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power generation system can be electrically grounded to shunt a leakage current associated with the isolation transformer of the power converter to a ground.
-
公开(公告)号：US20180187653A1
公开(公告)日：2018-07-05
申请号：US15663603
申请日：2017-07-28
发明人： Yashomani Y. Kolhatkar , Govardhan Ganireddy , Ravisekhar Nadimpalli Raju , Rajni Kant Burra , Arvind Kumar Tiwari , John Leo Bollenbecker
摘要： A hybrid power generation system is presented. The system includes a first power generation subsystem including a prime mover driving a generator including a rotor and a stator, one or more first conversion units coupled to at least one of the rotor and the stator, a first direct current (DC) link, and one or more second conversion units coupled to a corresponding one or more first conversion units via the first DC link. The system includes one or more second power generation subsystems coupled to the first power generation subsystem and one or more power conversion subunits including one or more first bridge circuits coupled to a corresponding one or more second bridge circuits via one or more transformers, where at least one of the one or more second power generation subsystems and the first power generation subsystem includes the one or more power conversion subunits.
-
公开(公告)号：US09837923B2
公开(公告)日：2017-12-05
申请号：US15247135
申请日：2016-08-25
IPC分类号： H02M7/00 , H05K3/30 , H05K7/20 , H01F38/14 , H05K1/02 , H05K1/03 , H05K1/18 , H01F27/10 , H01F27/28
CPC分类号： H02M7/003 , H01F27/10 , H01F27/2847 , H01F38/14 , H01F2027/2861 , H01L23/3735 , H05K1/0204 , H05K1/0306 , H05K1/18 , H05K3/30 , H05K7/1432 , H05K7/2089 , H05K2201/1003 , H05K2201/10053 , H05K2201/10174
摘要： A power converter for a power system includes an input ceramic layer, an output ceramic layer, an input stage coupled to the input ceramic layer, an output stage coupled to the output ceramic layer, and a planar transformer coupled between said input stage and said output stage. The input receives a power input and the output stage generates a power output at least partially as a function of the power input. The planar transformer includes an input winding coupled to the input stage and an output winding coupled to the output stage. The input winding has a plurality of input turns and the output winding has a plurality of output turns. The input turns interleave the output turns.
-
7.发明申请MULTI-LEVEL DC-DC CONVERTER WITH GALVANIC ISOLATION AND ADAPTIVE CONVERSION RATIO 有权多级DC-DC转换器，具有隔离隔离和自适应转换比公开(公告)号：US20160065081A1
公开(公告)日：2016-03-03
申请号：US14469002
申请日：2014-08-26
发明人： Ravisekhar Nadimpalli Raju , Rajib Datta , Xu She
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M3/285 , H02M2001/0074 , Y02B70/1433
摘要： A multi-level DC-DC converter includes an input side to receive a DC power having an input voltage and current, an output side to provide power to a load at a desired output voltage and current, and a plurality of tranformer-isolated DC-DC converters connected between the input and output sides, with the tranformer-isolated DC-DC converters being connected in series on one side and connected in parallel on another side. Each of the tranformer isolated DC-DC converters further includes a power transformer having a primary winding and a secondary winding, and a plurality of switching devices each selectively operable in one of an On state and an Off state. Operating the switching devices in a complementary On state and Off state alternately at a controlled switching frequency provides for engaging the tranformer isolated DC-DC converter and operating the switching devices in a simultaneously On state bypasses the transformer isolated DC-DC converter.
摘要翻译： 多级DC-DC转换器包括：输入侧，用于接收具有输入电压和电流的DC电力;输出侧，以期望的输出电压和电流向负载提供电力;以及多个转换器隔离DC- DC转换器连接在输入和输出侧之间，变压器隔离式DC-DC转换器在一侧串联连接，另一侧并联连接。 每个变压器隔离DC-DC转换器还包括具有初级绕组和次级绕组的电力变压器，以及多个开关装置，每个开关装置可以选择性地在“开”状态和“关”状态之一工作。 以受控的开关频率交替地将开关器件工作在互补的导通状态和关断状态，提供了与变压器隔离的DC-DC转换器并且同时操作开关器件的接通状态绕过变压器隔离的DC-DC转换器。
-
公开(公告)号：US10262784B2
公开(公告)日：2019-04-16
申请号：US15402962
申请日：2017-01-10
IPC分类号： H01F27/02 , H01F5/00 , H01F41/12 , H01F41/061 , H01F41/02 , H01F27/24 , H01F27/32 , H01F27/29
摘要： A transformer includes a ceramic housing, a primary winding disposed within the housing, a secondary winding disposed outside the winding, and a core extending through a first aperture in the housing. The housing includes a first portion and a second portion. Each of the first and second portions include a planar structure having a first housing aperture, and a plurality of sidewalls extending perpendicular to the planar structure along a plurality of edges of the planar structure. The first and second portions interface with one another when the ceramic housing is assembled such that the sidewalls of the first and second portions overlap with one another.
-
公开(公告)号：US10205399B2
公开(公告)日：2019-02-12
申请号：US15405712
申请日：2017-01-13
IPC分类号： H02M5/458 , H02K11/33 , H02J3/38 , H02M3/335 , H02M7/797 , H02P9/00 , H02M7/48 , F03D7/04 , H02K7/18 , H02M7/5387 , H02M1/00 , F03D7/02
摘要： Systems and methods for operating a power converter are provided. A DC to AC converter can include an inner converter and an outer converter. The inner converter can include an isolation transformer a first plurality of switching devices. The outer converter can include a second plurality of switching devices. A control method can include determining an output voltage of the outer converter. The control method can further include controlling operation of the inner converter based at least in part on the output voltage of the outer converter.
-
公开(公告)号：US20190006831A1
公开(公告)日：2019-01-03
申请号：US16124169
申请日：2018-09-06
发明人： Xu She , Rajib Datta , Ravisekhar Nadimpalli Raju , Maja Harfman- Todorovic , Philip Michael Cioffi
摘要： An electrical system includes a power electronics system and a bus bar coupled to the power electronic system. The power electronics system includes a switching device configured to selectively connect and disconnect. The bus bar includes a first conductive layer and a second conductive layer. The first conductive layer is disposed directly adjacent a first insulation layer, wherein the first conductive layer is configured to conduct a first polarity of electrical power to, from, or both the power electronics system. The second conductive layer is disposed directly adjacent the first insulation layer, and is configured to conduct a second polarity of electrical power opposite the first polarity to, from, or both the power electronics system. The first conductive layer comprises a first thickness half a second thickness of the second conductive layer.
-
-
-
-
-
-
-
-
-
搜索结果
62 条记录 (耗时 0.023 秒)
