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公开(公告)号：US10431978B2
公开(公告)日：2019-10-01
申请号：US15673520
申请日：2017-08-10
Applicant: General Electric Company
Inventor： Fengfeng Tao , Ahmed Elasser , Song Chi , Maja Harfman Todorovic
Abstract: A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.
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2.发明申请METHOD AND SYSTEM FOR ARCHITECTURE, CONTROL, AND PROTECTION SYSTEMS OF MODULAR STACKED DIRECT CURRENT SUBSEA POWER SYSTEM 有权模块化堆叠式直流电源系统的结构，控制和保护系统的方法与系统公开(公告)号：US20150070802A1
公开(公告)日：2015-03-12
申请号：US14024315
申请日：2013-09-11
Applicant: General Electric Company
Inventor： Dong Dong , Rixin Lai , Song Chi , Ranjan Kumar Gupta , Di Zhang
IPC: H02H3/16
Abstract: A high-voltage DC (HVDC) power system and a method of controlling and protecting the HVDC power system includes a plurality of sending-end (SE) modules coupled in electrical series and a plurality of receiving-end (RE) power converter modules electrically coupled to said plurality of SE modules, the RE modules coupled in a switchyard configuration, the switchyard configuration including a plurality of load branches coupled together in electrical series, each load branch including a branch bypass switch configured to bypass load current around an associated load branch, and a branch protection system.
Abstract translation: 高压直流（HVDC）电力系统和控制和保护高压直流电力系统的方法包括以电串联耦合的多个发送端（SE）模块和多个接收端（RE）功率转换器模块 耦合到所述多个SE模块，所述RE模块以开关构造配置耦合，所述开关站配置包括以电串联耦合在一起的多个负载分支，每个负载分支包括分支旁路开关，所述分支旁路开关配置成绕负载分支 ，以及分支保护系统。
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公开(公告)号：US20170322269A1
公开(公告)日：2017-11-09
申请号：US15523162
申请日：2015-10-27
Applicant: General Electric Company
Inventor： Ruxi Wang , Juan Sabate , Song Chi , Ying Mei
IPC: G01R33/385 , G01R33/54 , H03F3/217
CPC classification number: G01R33/3852 , G01R33/543 , H03F3/217 , H03F2200/372
Abstract: A method is used for operating a switching amplifier, the switching amplifier includes a plurality of cascade elements. The method includes: coupling the cascade elements in series between two terminals of a load; providing two leg circuits each comprised of switches in each of the cascade elements; and controlling all of the switches comprised in the switching amplifier using space vector modulation (SVM), such that a change of a common mode (CM) voltage generated by the switching amplifier is in a predetermined range.
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公开(公告)号：US20130162250A1
公开(公告)日：2013-06-27
申请号：US13709812
申请日：2012-12-10
Applicant: General Electric Company
Inventor： Juan Antonio Sabate , Wesley Michael Skeffington , Song Chi , Rixin Lai , Yimeng Shi , Yanjun Zhang
CPC classification number: G01R33/3614 , G01R33/3852 , G01R33/543
Abstract: A gradient amplifier system, includes: a power stage comprising a plurality of bridge amplifiers, each operates at a first switching frequency; a gradient coil coupled to the power stage and configured to produce a magnetic field proportional to a coil current signal supplied by the power stage; a controller stage coupled to an input terminal of the power stage and configured to: generate a pulse width modulated gate signal based on the coil current signal and a reference current signal, wherein the pulse width modulated gate signal is generated at a second switching frequency when a slew rate associated with the reference current signal is below a threshold rate for at least a first time period; and apply the pulse width modulated gate signal to the power stage for changing an operating frequency of each of the plurality of bridge amplifiers from the first to the second switching frequency.
Abstract translation: 一种梯度放大器系统，包括：功率级，包括多个桥式放大器，每个以第一开关频率工作; 耦合到功率级并被配置为产生与由功率级提供的线圈电流信号成比例的磁场的梯度线圈; 控制级，其耦合到所述功率级的输入端，并且被配置为：基于所述线圈电流信号和参考电流信号产生脉宽调制门信号，其中所述脉宽调制门信号以第二开关频率产生， 与参考电流信号相关联的转换速率低于至少第一时间段的阈值速率; 并且将所述脉冲宽度调制的栅极信号施加到所述功率级，以将所述多个桥接放大器中的每一个的工作频率从第一开关频率改变为第二开关频率。
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公开(公告)号：US10135401B2
公开(公告)日：2018-11-20
申请号：US15510392
申请日：2015-09-10
Applicant: General Electric Company
Inventor： Ying Mei , Pengcheng Zhu , Juan Antonio Sabate , Song Chi , Ruxi Wang , Jianguo Xiao
IPC: H03F3/217 , H03F1/26 , H03F1/30 , G01R33/385
Abstract: A switching amplifier includes a plurality of cascade elements, each bridge circuit includes an inductive load coupled between a first leg terminal of one of the at least two leg circuits and a second leg terminal of another one of the at least two leg circuits. A first leg voltage of the first leg terminal have a phase shift relative to a second leg voltage of the second leg terminal, the phase shift is used for causing the inductive load to store electric energy and generating a minimum circulating current−I min or I min sufficient to effect conducting of a corresponding diode; each of the switches is configured to be turned on if the corresponding diode conducts current to effect zero voltage switching of the corresponding switch. The minimum circulating current−I min or I min is equal to a constant value.
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Patent Agency Ranking
公开(公告)号：US20170366006A1
公开(公告)日：2017-12-21
申请号：US15673520
申请日：2017-08-10
Applicant: General Electric Company
Inventor： Fengfeng Tao , Ahmed Elasser , Song Chi , Maja Harfman Todorovic
CPC classification number: H02J1/102 , H02J3/383 , H02J7/35 , H02J9/061 , Y02B10/72 , Y02E10/563 , Y02E10/566
Abstract: A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.
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公开(公告)号：US20160126726A1
公开(公告)日：2016-05-05
申请号：US14533762
申请日：2014-11-05
Applicant: GENERAL ELECTRIC COMPANY
IPC: H02H9/04
Abstract: An over-voltage protection system includes an electronic valve connected across two terminals of a circuit and an over-voltage detection circuit connected across one of the plurality of semiconductor devices for detecting an over-voltage across the circuit. The electronic valve includes a plurality of semiconductor devices connected in series. The over-voltage detection circuit includes a voltage divider circuit connected to a break-over diode in a way to provide a representative low voltage to the break-over diode and an optocoupler configured to receive a current from the break-over diode when the representative low voltage exceeds a threshold voltage of the break-over diode indicating an over-voltage condition. The representative low voltage provided to the break-over diode represents a voltage across the one semiconductor device. A plurality of self-powered gate drive circuits are connected to the plurality of semiconductor devices, wherein the plurality of self-powered gate drive circuits receive over-voltage triggering pulses from the optocoupler during the over-voltage condition and switch on the plurality of semiconductor devices to bypass the circuit.
Abstract translation: 一种过电压保护系统包括连接在电路的两个端子上的电子阀和跨过多个半导体器件中的一个半导体器件连接的过电压检测电路，用于检测电路两端的过电压。 电子阀包括串联连接的多个半导体器件。 过电压检测电路包括分压电路，其连接到断路二极管，以便为断路二极管提供代表性的低电压;以及光耦合器，其配置为当代表性的时候接收来自断路二极管的电流 低电压超过断开二极管的阈值电压，表示过电压状态。 提供给断路二极管的代表性低电压表示一个半导体器件上的电压。 多个自供电栅极驱动电路连接到多个半导体器件，其中多个自供电栅极驱动电路在过电压条件期间从光耦合器接收过电压触发脉冲，并且在多个半导体上接通 设备旁路电路。
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8.发明授权Method and system for architecture, control, and protection systems of modular stacked direct current subsea power system 有权模块堆叠直流海底电力系统的架构，控制和保护系统的方法和系统公开(公告)号：US09178349B2
公开(公告)日：2015-11-03
申请号：US14024315
申请日：2013-09-11
Applicant: General Electric Company
Inventor： Dong Dong , Rixin Lai , Song Chi , Ranjan Kumar Gupta , Di Zhang
Abstract: A high-voltage DC (HVDC) power system and a method of controlling and protecting the HVDC power system includes a plurality of sending-end (SE) modules coupled in electrical series and a plurality of receiving-end (RE) power converter modules electrically coupled to said plurality of SE modules, the RE modules coupled in a switchyard configuration, the switchyard configuration including a plurality of load branches coupled together in electrical series, each load branch including a branch bypass switch configured to bypass load current around an associated load branch, and a branch protection system.
Abstract translation: 高压直流（HVDC）电力系统和控制和保护高压直流电力系统的方法包括以电串联耦合的多个发送端（SE）模块和多个接收端（RE）功率转换器模块 耦合到所述多个SE模块，所述RE模块以开关构造配置耦合，所述开关站配置包括以电串联耦合在一起的多个负载分支，每个负载分支包括分支旁路开关，所述分支旁路开关配置成绕负载分支 ，以及分支保护系统。
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公开(公告)号：US20150311708A1
公开(公告)日：2015-10-29
申请号：US14262144
申请日：2014-04-25
Applicant: General Electric Company
Inventor： Fengfeng Tao , Ahmed Elasser , Song Chi , Maja Harfman Todorovic
CPC classification number: H02J1/102 , H02J3/383 , H02J7/35 , H02J9/061 , Y02B10/72 , Y02E10/563 , Y02E10/566
Abstract: A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.
Abstract translation: 公开了一种用于调节从混合直流电源接收的直流电力的系统和方法。 功率转换电路耦合到相应的直流电源，以选择地将由此产生的输出功率调节到直流母线电压。 功率转换电路包括开关装置和布置成在功率转换电路中提供电荷平衡的电容器。 与开关装置可操作地通信的控制器接收直流母线电压上的输入和与直流电源的操作有关的至少一个参数，并且基于接收到的确定从转换电路输出到直流母线的可调电压 输入。 然后，控制器选择性地控制开关装置的操作，以便产生确定的可调电压。
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公开(公告)号：US10302718B2
公开(公告)日：2019-05-28
申请号：US15523162
申请日：2015-10-27
Applicant: General Electric Company
Inventor： Ruxi Wang , Juan Sabate , Song Chi , Ying Mei
IPC: G01R33/54 , H03F3/217 , G01R33/385
Abstract: A method is used for operating a switching amplifier, the switching amplifier includes a plurality of cascade elements. The method includes: coupling the cascade elements in series between two terminals of a load; providing two leg circuits each comprised of switches in each of the cascade elements; and controlling all of the switches comprised in the switching amplifier using space vector modulation (SVM), such that a change of a common mode (CM) voltage generated by the switching amplifier is in a predetermined range.
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