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公开(公告)号:US20180191280A1
公开(公告)日:2018-07-05
申请号:US15399049
申请日:2017-01-05
发明人: Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Rajni Kant Burra , Ravisekhar Nadimpalli Raju , Rui Zhou , Rajib Datta , John Leo Bollenbecker
CPC分类号: H02P9/007 , F03D9/25 , F03D9/255 , H02M3/335 , H02M3/33576 , H02M3/337 , H02M5/4585 , H02M2001/0077 , Y02E10/725
摘要: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a wind driven doubly fed induction generator having a stator and a rotor. The stator is configured to provide a medium voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert a low voltage alternating current power provided by the rotor to a medium voltage multiphase alternating current output power suitable for provision to an electrical grid. The power converter includes a plurality conversion modules. Each conversion module includes a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the wind turbine system.
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公开(公告)号:US20170373586A1
公开(公告)日:2017-12-28
申请号:US15192023
申请日:2016-06-24
发明人: Di Zhang , Rui Zhou , Luis Garces , Jiangbiao He
CPC分类号: H02M7/5395 , H02M7/487 , H02M2001/0048 , H02M2001/0054
摘要: The present disclosure is directed to a system and method for modulating a voltage output of a hybrid converter system having first and second set of Si-based power electronic devices coupled to first and second voltage source, respectively, and a first set of SiC-based power electronic devices coupled to the first and second sets of Si-based power electronic devices. The method includes switching between operational states of the hybrid converter system based on a desired voltage output, wherein each operational state includes one of the Si-based power electronic devices from the first and second sets of Si-based power electronic devices and one of the SiC-based devices from the first set of SiC-based power electronic devices being switched on and the remaining power electronic devices being switched off. Each SiC-based power electronic device of the first set of SiC-based power electronic devices switches at a higher frequency as compared to each Si-based power electronic device of the first and second sets of the Si-based power electronic devices.
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公开(公告)号:US20170110969A1
公开(公告)日:2017-04-20
申请号:US14885675
申请日:2015-10-16
IPC分类号: H02M3/335
CPC分类号: H02M3/33507 , H02J3/382 , H02J3/385 , H02M3/33569 , H02M3/337 , H02M2001/0058 , H02M2001/0074 , H02M2001/0077 , Y02B70/1491 , Y02E10/58
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.
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公开(公告)号:US09537410B2
公开(公告)日:2017-01-03
申请号:US14482969
申请日:2014-09-10
发明人: Rui Zhou , Luis Jose Garces , Ravisekhar Nadimpalli Raju , Rixin Lai , Di Zhang
CPC分类号: H02M3/33569 , H02M1/44 , H02M2001/0058 , H02M2007/4835 , Y02B70/1491
摘要: A system and method for series connecting electronic power devices are disclosed. In one embodiment, a switching device system includes a first upper arm electrically coupled to a first lower arm and a second upper arm electrically coupled to a second lower arm. Each of the arms include a plurality of low voltage sub-modules connected in series and each plurality of low voltage sub-modules includes an auxiliary switching device, a series switching device, and a capacitor. Each plurality of low voltage sub-modules is configured to be sequentially switched using the auxiliary switching device and the series switching device separately in the upper arms and the respective lower arms to control change in voltage over time (dV/dt) while selectively blocking a desired high voltage. Further, a capacitor voltage balancing (sorting or rotating) algorithm may be used to actively balance voltage across each plurality of low voltage sub-modules.
摘要翻译: 公开了一种用于串联电子功率器件的系统和方法。 在一个实施例中,开关装置系统包括电耦合到第一下臂的第一上臂和电耦合到第二下臂的第二上臂。 每个臂包括串联连接的多个低压子模块,并且每个低压子模块包括辅助开关装置,串联开关装置和电容器。 每个多个低压子模块被配置为使用辅助开关装置和串联开关装置在上臂和相应的下臂中分开地依次切换以控制电压随时间的变化(dV / dt),同时选择性地阻塞 所需高电压。 此外,可以使用电容器电压平衡(分选或旋转)算法来主动平衡每个低压子模块的电压。
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公开(公告)号:US20150134109A1
公开(公告)日:2015-05-14
申请号:US14076580
申请日:2013-11-11
发明人: Rui Zhou , Manoj Ramprasad Shah , Kiruba Sivasubramaniam Haran , Arthur Vorwerk Radun , Enis Tuncer
CPC分类号: H02N1/006 , H02N1/008 , Y10S901/01
摘要: A switched capacitive device includes a stator including a plurality of first electrodes extending substantially in a longitudinal dimension. The switched capacitive device also includes an armature including a plurality of second electrodes proximate the plurality of first electrodes. The plurality of second electrodes is translatable with respect to the plurality of first electrodes. The plurality of second electrodes extends substantially in the longitudinal dimension. The plurality of first electrodes and the plurality of second electrodes are configured to induce substantially linear motion of the second plurality of electrodes in the longitudinal dimension with respect to the first plurality of electrodes as a function of an electric field induced by at least a portion of the first plurality of electrodes.
摘要翻译: 开关电容性装置包括定子,其包括基本上沿纵向尺寸延伸的多个第一电极。 开关电容性装置还包括电枢,其包括靠近多个第一电极的多个第二电极。 多个第二电极可相对于多个第一电极平移。 多个第二电极基本上在纵向尺寸上延伸。 所述多个第一电极和所述多个第二电极被配置为相对于所述第一多个电极在所述纵向尺寸上引起所述第二多个电极的基本线性运动,作为由至少一部分电极引起的电场的函数 第一组多个电极。
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公开(公告)号:US11655042B2
公开(公告)日:2023-05-23
申请号:US16431015
申请日:2019-06-04
发明人: Dong Dong , Manoj Ramprasad Shah , Rui Zhou , Hao Huang , Di Zhang
CPC分类号: B64D27/24 , H02M5/458 , H02M7/483 , H02M7/4835 , H02M7/797 , B60Y2200/51 , B60Y2200/92 , B64D2027/026 , B64D2221/00 , H02M1/0077 , Y02T50/40 , Y02T50/60 , Y10S903/903
摘要: An electric propulsion system includes at least one generator. The electric propulsion system also includes at least one drive engine coupled to the at least one generator. The electric propulsion system further includes at least one electrical device. The electric propulsion system also includes at least one battery integrated isolated power converter (BIIC), where the at least one generator and at least one of the at least one BIIC and the at least one electrical device are coupled, and where the at least one BIIC and the at least one electrical device are coupled.
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公开(公告)号:US10439533B2
公开(公告)日:2019-10-08
申请号:US15399049
申请日:2017-01-05
发明人: Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Rajni Kant Burra , Ravisekhar Nadimpalli Raju , Rui Zhou , Rajib Datta , John Leo Bollenbecker
摘要: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a wind driven doubly fed induction generator having a stator and a rotor. The stator is configured to provide a medium voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert a low voltage alternating current power provided by the rotor to a medium voltage multiphase alternating current output power suitable for provision to an electrical grid. The power converter includes a plurality conversion modules. Each conversion module includes a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the wind turbine system.
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公开(公告)号:US10191531B2
公开(公告)日:2019-01-29
申请号:US14983010
申请日:2015-12-29
摘要: A voltage converter may include a first set of silicon (Si)-based power devices coupled to a first direct current (DC) voltage source and a second set of Si-based power devices coupled to a second DC voltage source. The voltage converter may also include a first set of silicon-carbide (SiC)-based power devices coupled to the first set of Si-based power devices and to the second set of Si-based power devices. Each SiC-based power device of the first set of SiC-based power devices may switch at a higher frequency as compared to each Si-based power device of the first and second sets of the Si-based power electronic devices.
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公开(公告)号:US10014773B2
公开(公告)日:2018-07-03
申请号:US15253124
申请日:2016-08-31
发明人: Dong Dong , Rui Zhou , Zhi Zhou , Tomas Sadilek
CPC分类号: H02M3/158 , H02J1/10 , H02J7/0024 , H02J7/1423 , H02J7/34 , H02J9/002
摘要: A hybrid active power link device includes a plurality of active power link modules (APLMs). Each APLM of the plurality of APLMs includes a plurality of switching devices including a first switching device and a second switching device coupled in series. Each APLM of the plurality of APLMs also includes at least one first-type energy storage device (ESD) coupled in parallel with both of the first switching device and the second switching device. The hybrid active power link device also includes at least one second-type ESD coupled in series with at least one APLM of the plurality of APLMs.
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公开(公告)号:US09979322B2
公开(公告)日:2018-05-22
申请号:US15192023
申请日:2016-06-24
发明人: Di Zhang , Rui Zhou , Luis Garces , Jiangbiao He
IPC分类号: H02M7/5395 , H02M1/00 , H02M7/487
CPC分类号: H02M7/5395 , H02M7/487 , H02M2001/0048 , H02M2001/0054
摘要: The present disclosure is directed to a system and method for modulating a voltage output of a hybrid converter system having first and second set of Si-based power electronic devices coupled to first and second voltage source, respectively, and a first set of SiC-based power electronic devices coupled to the first and second sets of Si-based power electronic devices. The method includes switching between operational states of the hybrid converter system based on a desired voltage output, wherein each operational state includes one of the Si-based power electronic devices from the first and second sets of Si-based power electronic devices and one of the SiC-based devices from the first set of SiC-based power electronic devices being switched on and the remaining power electronic devices being switched off. Each SiC-based power electronic device of the first set of SiC-based power electronic devices switches at a higher frequency as compared to each Si-based power electronic device of the first and second sets of the Si-based power electronic devices.
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