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公开(公告)号：US11451057B2
公开(公告)日：2022-09-20
申请号：US16647213
申请日：2017-09-15
Applicant: General Electric Company , Rajni Kant Burra , Govardhan Ganireddy , Anthony Michael Klodowski , Wenqiang Yang
Inventor： Rajni Kant Burra , Govardhan Ganireddy , Anthony Michael Klodowski , Wenqiang Yang
Abstract: A method for controlling an electrical power system connected to a power grid includes receiving a reactive power command and a measured reactive power and generating a reactive power error signal based on a difference between the reactive power command and the measured reactive power. Further, the method includes receiving, via a reactive power regulator, the reactive power error signal. Moreover, the method includes generating, via the reactive power regulator, a voltage command based on the error signal. The method also includes generating, via a droop control, a voltage droop signal. In addition, the method includes generating a voltage error signal as a function of the voltage droop signal and at least one of the voltage command or a measured terminal voltage. Thus, the method further includes generating, via a voltage regulator, a reactive current command based on the voltage error signal.
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公开(公告)号：US20130128631A1
公开(公告)日：2013-05-23
申请号：US13682938
申请日：2012-11-21
Applicant: General Electric Company
Inventor： Wenqiang Yang , Anthony Michael Klodowski , Robert Allen Seymour
IPC: H02J3/36
Abstract: A control system includes first and second fundamental control units for generating first and second fundamental commands, and a compensation control unit. The compensation control unit includes first and second calculation elements and a comparator for comparing first and second modulation indexes. When the first modulation index is less than the second modulation index, the first calculation element generates a first source-side compensation command. When the first source-side compensation command is not sufficient to balance the neutral point voltage, the first calculation element further generates a first line-side compensating command. When the first modulation index is greater than the second modulation index, the second calculation element generates a second line-side compensation command. When the second line-side compensation command is not sufficient to balance the neutral point voltage, the second calculation element further generates a second source-side compensating command.
Abstract translation: 控制系统包括用于产生第一和第二基本命令的第一和第二基本控制单元和补偿控制单元。 补偿控制单元包括第一和第二计算元件和用于比较第一和第二调制指数的比较器。 当第一调制指数小于第二调制指数时，第一计算元件产生第一源侧补偿命令。 当第一源极补偿指令不足以平衡中性点电压时，第一计算元件进一步产生第一线路侧补偿命令。 当第一调制指数大于第二调制指数时，第二计算元件产生第二行侧补偿命令。 当第二线路侧补偿命令不足以平衡中性点电压时，第二计算元件进一步产生第二源侧补偿命令。
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公开(公告)号：US09263962B2
公开(公告)日：2016-02-16
申请号：US14449181
申请日：2014-08-01
Applicant: General Electric Company
Inventor： Wenqiang Yang , Hongwu She , Rajendra Naik , Shivkumar Venkatraman Iyer
CPC classification number: H02M5/42 , H02M1/12 , H02M7/5395 , H02M2001/007 , H02M2001/0074 , H02M2001/0077 , Y02E10/76 , Y10T307/707
Abstract: An exemplary power conversion system includes a first power conversion module, a second power conversion module, and a controller. The first power conversion module includes a first source side converter, a first load side converter, and a first DC link coupled between the first source side converter and the second load side converter. The second power conversion module includes a second source side converter, a second load side converter, and a second DC link coupled between the second source side converter and the second load side converter. The controller is configured to generate a number of switching signals according to a circuit structure of the power source module or a circuit structure of the load module. The switching signals are provided to the first power conversion module and the second power conversion module to balance a first DC link voltage and a second DC link voltage.
Abstract translation: 示例性的电力转换系统包括第一电力转换模块，第二电力转换模块和控制器。 第一电源转换模块包括第一源侧转换器，第一负载侧转换器和耦合在第一源侧转换器和第二负载侧转换器之间的第一DC链路。 第二电源转换模块包括耦合在第二源侧转换器和第二负载侧转换器之间的第二源极侧转换器，第二负载侧转换器和第二DC链路。 控制器被配置为根据电源模块的电路结构或负载模块的电路结构生成多个开关信号。 切换信号被提供给第一电力转换模块和第二电力转换模块以平衡第一DC链路电压和第二DC链路电压。
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Patent Agency Ranking
4.发明申请公开(公告)号：US20200235577A1
公开(公告)日：2020-07-23
申请号：US16647213
申请日：2017-09-15
Applicant: General Electric Company
Inventor： Rajni Kant Burra , Govardhan Ganireddy , Anthony Michael Klodowski , Wenqiang Yang
Abstract: A method for controlling an electrical power system connected to a power grid includes receiving a reactive power command and a measured reactive power and generating a reactive power error signal based on a difference between the reactive power command and the measured reactive power. Further, the method includes receiving, via a reactive power regulator, the reactive power error signal. Moreover, the method includes generating, via the reactive power regulator, a voltage command based on the error signal. The method also includes generating, via a droop control, a voltage droop signal. In addition, the method includes generating a voltage error signal as a function of the voltage droop signal and at least one of the voltage command or a measured terminal voltage. Thus, the method further includes generating, via a voltage regulator, a reactive current command based on the voltage error signal.
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公开(公告)号：US10017993B2
公开(公告)日：2018-07-10
申请号：US14743444
申请日：2015-06-18
Applicant: General Electric Company
Inventor： Lishun Hu , Yu Zhou , Wenqiang Yang
Abstract: A drilling system, comprising: a plurality of drilling drive systems; a fracturing drive system; a centralized power supply system electrically coupled to said drilling drive systems and said fracturing drive system to supply power thereto; and a plurality of distributed power supply systems electrically coupled to said drilling drive systems to supply additional power thereto during peak loading of a respective one of the plurality of drilling drive systems.
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6.发明授权Neutral point clamped converter control system and control method and compensation unit 有权中性点钳位转换器控制系统及控制方法及补偿单元公开(公告)号：US09083261B2
公开(公告)日：2015-07-14
申请号：US13682996
申请日：2012-11-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Wenqiang Yang , Ling Luo , Yunfeng Liu , Anthony Michael Klodowski , Robert Gregory Wagoner , Robert Allen Seymour
Abstract: A control system includes a fundamental control unit, first and second compensation control units, a switch control unit, and a switch implementation unit. The fundamental control unit generates fundamental commands to implement fundamental power conversion operation for a converter. The first compensation control unit generates a first compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a first state. The second compensation control unit generates a second compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a second state. The switch control unit detects first and second states of the converter and provides first and second switch signals respectively. The switch implementation unit switches the fundamental control unit to communicate with the first and second compensation control units according to the first and second switch signals respectively.
Abstract translation: 控制系统包括基本控制单元，第一和第二补偿控制单元，开关控制单元和开关实施单元。 基本控制单元产生用于实现转换器的基本功率转换操作的基本命令。 第一补偿控制单元在转换器在第一状态下运行时产生用于注入基本命令的第一补偿信号以平衡中性点电压。 第二补偿控制单元在转换器在第二状态下运行时产生用于注入基本命令的第二补偿信号以平衡中性点电压。 开关控制单元检测转换器的第一和第二状态，分别提供第一和第二开关信号。 开关实施单元切换基本控制单元，以分别根据第一和第二开关信号与第一和第二补偿控制单元通信。
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公开(公告)号：US09071084B2
公开(公告)日：2015-06-30
申请号：US13682938
申请日：2012-11-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Wenqiang Yang , Anthony Michael Klodowski , Robert Allen Seymour
Abstract: A control system includes first and second fundamental control units for generating first and second fundamental commands, and a compensation control unit. The compensation control unit includes first and second calculation elements and a comparator for comparing first and second modulation indexes. When the first modulation index is less than the second modulation index, the first calculation element generates a first source-side compensation command. When the first source-side compensation command is not sufficient to balance the neutral point voltage, the first calculation element further generates a first line-side compensating command. When the first modulation index is greater than the second modulation index, the second calculation element generates a second line-side compensation command. When the second line-side compensation command is not sufficient to balance the neutral point voltage, the second calculation element further generates a second source-side compensating command.
Abstract translation: 控制系统包括用于产生第一和第二基本命令的第一和第二基本控制单元和补偿控制单元。 补偿控制单元包括第一和第二计算元件和用于比较第一和第二调制指数的比较器。 当第一调制指数小于第二调制指数时，第一计算元件产生第一源侧补偿命令。 当第一源极补偿指令不足以平衡中性点电压时，第一计算元件进一步产生第一线路侧补偿命令。 当第一调制指数大于第二调制指数时，第二计算元件产生第二行侧补偿命令。 当第二线路侧补偿命令不足以平衡中性点电压时，第二计算元件进一步产生第二源侧补偿命令。
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8.发明申请NEUTRAL POINT CLAMPED CONVERTER CONTROL SYSTEM AND CONTROL METHOD AND COMPENSATION UNIT 有权中性点钳位转换器控制系统及控制方法及补偿单元公开(公告)号：US20130128632A1
公开(公告)日：2013-05-23
申请号：US13682996
申请日：2012-11-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Wenqiang Yang , Ling Luo , Yunfeng Liu , Anthony Michael Klodowski , Robert Gregory Wagoner , Robert Allen Seymour
IPC: H02M5/458
Abstract: A control system includes a fundamental control unit, first and second compensation control units, a switch control unit, and a switch implementation unit. The fundamental control unit generates fundamental commands to implement fundamental power conversion operation for a converter. The first compensation control unit generates a first compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a first state. The second compensation control unit generates a second compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a second state. The switch control unit detects first and second states of the converter and provides first and second switch signals respectively. The switch implementation unit switches the fundamental control unit to communicate with the first and second compensation control units according to the first and second switch signals respectively.
Abstract translation: 控制系统包括基本控制单元，第一和第二补偿控制单元，开关控制单元和开关实施单元。 基本控制单元产生用于实现转换器的基本功率转换操作的基本命令。 第一补偿控制单元在转换器在第一状态下运行时产生用于注入基本命令的第一补偿信号以平衡中性点电压。 第二补偿控制单元在转换器在第二状态下运行时产生用于注入基本命令的第二补偿信号以平衡中性点电压。 开关控制单元检测转换器的第一和第二状态，分别提供第一和第二开关信号。 开关实施单元切换基本控制单元，以分别根据第一和第二开关信号与第一和第二补偿控制单元通信。
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