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1.发明申请公开(公告)号：US20190140557A1
公开(公告)日：2019-05-09
申请号：US15806352
申请日：2017-11-08
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Jiangbiao He , Sachin Madhusoodhanan , Di Pan
IPC: H02M7/5395
Abstract: A method for operating a phase-leg of a three-level active neutral point clamped (3L-ANPC) converter is presented. The phase-leg includes an output terminal, a plurality of input terminals, and a plurality of switches disposed therebetween. The method includes operating the phase-leg in a neutral state to generate an output voltage having a neutral level. The method further includes transitioning the phase-leg to a first intermediate neutral state from the neutral state. Moreover, the method includes transitioning the phase-leg from the first intermediate neutral state to a first state to generate the output voltage having a first level. A modulator for operating the phase-leg of the 3L-ANPC converter is also presented. Moreover, a 3L-ANPC converter including the modulator is presented.
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2.发明申请公开(公告)号：US20180145600A1
公开(公告)日：2018-05-24
申请号：US15237870
申请日：2016-08-16
Applicant: General Electric Company
Inventor： Zhi Zhou , Di Zhang , Dong Dong , Tomas Sadilek
CPC classification number: H02M3/33576 , H02J1/10 , H02J1/102 , H02J7/0013 , H02J7/345 , H02J9/00 , H02J2001/002 , H02M2001/0077 , H02M2007/4835
Abstract: A modular power conversion device includes at least one first-type energy storage device (ESD) configured to induce a first direct current (DC) voltage, and at least one active power link module (APLM) string coupled to the at least one first-type ESD. The at least one APLM string includes a plurality of APLMs coupled to each other. Each APLM of the plurality of APLMs has a plurality of switching devices including a first switching device and a second switching device coupled to each other in electrical series. Each APLM of the plurality of APLMs also has at least one second-type ESD coupled in electrical parallel with both of the first switching device and the second switching device. The at least one second-type ESD is configured to induce a second DC voltage.
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公开(公告)号：US09748857B2
公开(公告)日：2017-08-29
申请号：US14824657
申请日：2015-08-12
Applicant: General Electric Company
Inventor： Xu She , Rahul Shantilal Chokhawala , James William Bray , Timothy John Sommerer , Rui Zhou , Di Zhang
CPC classification number: H02M5/458 , H02J3/36 , H02M5/456 , H02M7/19 , H02M7/213 , H02M7/219 , Y02E60/60
Abstract: A high-voltage direct-current (HVDC) transmission system includes an alternating current (AC) electrical source and a power converter channel that includes an AC-DC converter electrically coupled to the electrical source and a DC-AC inverter electrically coupled to the AC-DC converter. The AC-DC converter and the DC-AC inverter each include a plurality of legs that includes at least one switching device. The power converter channel further includes a commutating circuit communicatively coupled to one or more switching devices. The commutating circuit is configured to “switch on” one of the switching devices during a first portion of a cycle of the H-bridge switching circuits and “switch off” the switching device during a second portion of the cycle of the first and second H-bridge switching circuits.
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公开(公告)号：US20170163043A1
公开(公告)日：2017-06-08
申请号：US14960729
申请日：2015-12-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Luis Jose Garces , Rui Zhou , Zhi Zhou , Di Zhang
CPC classification number: H02J3/387 , H02J3/30 , H02J3/32 , H02M1/15 , H02M7/483 , H02M2007/4835 , Y02E60/16
Abstract: A system for integrating energy storage into a modular power converter includes at least one energy storage unit coupled to a first converter for converting a first direct current (DC) voltage of the at least one energy storage unit into a first high frequency alternating current (AC) voltage. At least three phase legs of the modular power converter generate three phase AC voltages. Each phase leg includes a plurality of switching modules connected in series. The switching modules have a plurality of fully controllable semiconductor switches, an energy storage device, and a second converter coupled to the respective energy storage device for converting a second DC voltage of the energy storage device into a second high frequency AC voltage. In the system, three similarly positioned switching modules of the three phase legs form one power unit. Further, a high frequency transformer is provided which has at least one primary winding connected to the first converter and at least three secondary windings, each connected to the second converter of each of the three similarly positioned switching modules. A controller is configured to regulate at least one electrical parameter of the modular power converter.
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5.发明申请METHOD AND SYSTEM FOR A GAS TUBE-BASED CURRENT SOURCE HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM 有权基于气体管的电流源高压直流电流传输系统的方法与系统公开(公告)号：US20170047857A1
公开(公告)日：2017-02-16
申请号：US14824657
申请日：2015-08-12
Applicant: General Electric Company
Inventor： Xu She , Rahul Shantilal Chokhawala , James William Bray , Timothy John Sommerer , Rui Zhou , Di Zhang
IPC: H02M5/458
CPC classification number: H02M5/458 , H02J3/36 , H02M5/456 , H02M7/19 , H02M7/213 , H02M7/219 , Y02E60/60
Abstract: A high-voltage direct-current (HVDC) transmission system includes an alternating current (AC) electrical source and a power converter channel that includes an AC-DC converter electrically coupled to the electrical source and a DC-AC inverter electrically coupled to the AC-DC converter. The AC-DC converter and the DC-AC inverter each include a plurality of legs that includes at least one switching device. The power converter channel further includes a commutating circuit communicatively coupled to one or more switching devices. The commutating circuit is configured to “switch on” one of the switching devices during a first portion of a cycle of the H-bridge switching circuits and “switch off” the switching device during a second portion of the cycle of the first and second H-bridge switching circuits.
Abstract translation: 高压直流（HVDC）传输系统包括交流（AC）电源和电力转换器通道，其包括电耦合到电源的AC-DC转换器和电耦合到AC的DC-AC逆变器 -DC转换器。 AC-DC转换器和DC-AC逆变器各自包括包括至少一个开关装置的多个支腿。 功率转换器通道还包括通信地耦合到一个或多个开关器件的整流电路。 换向电路被配置为在H桥开关电路的周期的第一部分期间“接通”一个开关器件，并且在第一和第二H的周期的第二部分期间“切断”开关器件 桥式开关电路。
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Patent Agency Ranking
6.发明授权Method and system for a gas tube switch-based voltage source high voltage direct current transmission system 有权一种基于气体管开关电压源高压直流输电系统的方法和系统公开(公告)号：US09520801B1
公开(公告)日：2016-12-13
申请号：US14824752
申请日：2015-08-12
Applicant: General Electric Company
Inventor： Xu She , Rahul Shantilal Chokhawala , Rui Zhou , Di Zhang , Timothy John Sommerer , James William Bray
CPC classification number: H02M5/456 , H02J3/36 , H02M1/0061 , H02M5/4585 , H02M7/213 , H02M7/23 , H02M7/493 , H02M7/533 , Y02E60/60
Abstract: A voltage source converter based high-voltage direct-current (HVDC) transmission system includes a voltage source converter (VSC)-based power converter channel. The VSC-based power converter channel includes an AC-DC converter and a DC-AC inverter electrically coupled to the AC-DC converter. The AC-DC converter and a DC-AC inverter include at least one gas tube switching device coupled in electrical anti-parallel with a respective gas tube diode. The VSC-based power converter channel includes a commutating circuit communicatively coupled to one or more of the at least one gas tube switching devices. The commutating circuit is configured to “switch on” a respective one of the one or more gas tube switching devices during a first portion of an operational cycle and “switch off” the respective one of the one or more gas tube switching devices during a second portion of the operational cycle.
Abstract translation: 基于电压源转换器的高压直流（HVDC）传输系统包括基于电压源转换器（VSC）的功率转换器通道。 基于VSC的功率转换器通道包括电耦合到AC-DC转换器的AC-DC转换器和DC-AC逆变器。 AC-DC转换器和DC-AC逆变器包括至少一个与相应的气体管二极管反并联的电气管开关装置。 基于VSC的功率转换器通道包括通信地耦合到所述至少一个气体管切换装置中的一个或多个的换向电路。 整流电路被配置为在操作周期的第一部分期间“接通”一个或多个气体管道切换装置中的相应一个，并且在第二个时间段内“关闭”一个或多个气体管切换装置中的相应一个 部分操作周期。
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公开(公告)号：US20160031391A1
公开(公告)日：2016-02-04
申请号：US14789060
申请日：2015-07-01
Applicant: GENERAL ELECTRIC COMPANY
IPC: B60R16/023 , H02M1/34 , B63H21/17
CPC classification number: B60R16/023 , B60R16/03 , B63H21/17 , H02H7/1225 , H02J1/102 , H02J4/00 , H02J2001/104 , H02J2001/106 , H02M1/34
Abstract: A power system for a marine ship includes a plurality of protection zones, wherein at least two protection zones are coupled to each other via at least one bus-tie converter. Each of the protection zones includes a plurality of direct current (DC) buses and a plurality of power converters. The bus-tie converter includes at least two converter legs coupled by at least one inductor. Each converter leg includes a first branch connected with a snubber circuit. The first branch includes two outer switching devices and at least one inner switching device connected between the two outer switching devices. The first branch also includes a damping resistor coupled between the two outer switching devices to dissipate a fault current. The snubber circuit includes a combination of a diode, a resistor and a capacitor. A controller controls the operation of the plurality of power converters and the at least one bus-tie converter.
Abstract translation: 用于船舶船舶的动力系统包括多个保护区域，其中至少两个保护区域经由至少一个总线连接转换器彼此耦合。 每个保护区域包括多个直流（DC）母线和多个功率转换器。 总线连接转换器包括由至少一个电感器耦合的至少两个转换器支脚。 每个转换器支路包括与缓冲电路连接的第一支路。 第一分支包括两个外部开关装置和连接在两个外部开关装置之间的至少一个内部开关装置。 第一分支还包括耦合在两个外部开关器件之间以消散故障电流的阻尼电阻器。 缓冲电路包括二极管，电阻器和电容器的组合。 控制器控制多个电力转换器和至少一个总线连接转换器的操作。
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公开(公告)号：US20150091488A1
公开(公告)日：2015-04-02
申请号：US14040767
申请日：2013-09-30
Applicant: General Electric Company
Inventor： Di Zhang , Luis José Garcés , Andrew Allen Rockhill , Rixin Lai
IPC: H02P27/06
CPC classification number: H02P27/06 , H02M7/217 , H02M7/487 , H02M2007/4835 , H02P1/16 , H02P27/14 , H02P27/16
Abstract: A system for driving an electric machine is provided. The system includes a power converter coupled to an input source and the electric machine. The power converter includes a leg that includes a first and second string. The first string includes plurality of controllable semiconductor switches, a first and second connecting node. The first string is operatively coupled across a first and second bus. The second string is operatively coupled to the first string via the first and second connecting node. The second string comprises plurality of switching modules. The switching modules include fully controllable semiconductor switches and energy storage devices. The system further includes a system controller configured to provide activation commands to the controllable semiconductor switches and the switching modules such that energy stored in the energy storage device is provided to the electric machine when the machine is switched on for operation.
Abstract translation: 提供一种用于驱动电机的系统。 该系统包括耦合到输入源和电机的功率转换器。 功率转换器包括包括第一和第二串的支脚。 第一串包括多个可控半导体开关，第一和第二连接节点。 第一串可操作地耦合在第一和第二总线上。 第二串通过第一和第二连接节点可操作地耦合到第一串。 第二串包括多个开关模块。 开关模块包括完全可控的半导体开关和能量存储装置。 该系统还包括系统控制器，该系统控制器被配置为向可控半导体开关和开关模块提供启动命令，使得当机器接通操作时，存储在能量存储装置中的能量被提供给电机。
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公开(公告)号：US20190319543A1
公开(公告)日：2019-10-17
申请号：US15955064
申请日：2018-04-17
Applicant: General Electric Company
Inventor： Mark Dame , Jiangbiao He , Di Zhang
Abstract: In an embodiment, a three-level active neutral-point clamped (ANPC) converter system is provided. The system includes first and second Direct Current (DC)-bus structures that include at least one of a number of DC-bus capacitors on printed circuit boards (PCBs). The PCBs are laminated together with an air gap (e.g., one or more millimeters) in between for a thermal dissipation and an insulation creepage. The three DC-bus terminals include PCBs, and are electrically connected to the three-level power converter, which are typically mounted on a heatsink or a cold plate.
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10.发明申请公开(公告)号：US20190283889A1
公开(公告)日：2019-09-19
申请号：US16431015
申请日：2019-06-04
Applicant: General Electric Company
Inventor： Dong Dong , Manoj Ramprasad Shah , Rui Zhou , Hao Huang , Di Zhang
Abstract: 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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