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

IPC: H02M7/487 ,  H02M5/458

CPC classification number: H02M5/458 ,  H02M7/487

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。

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

CPC classification number: H02M5/458 ,  H02M7/487

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。