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1. 发明授权

US08773876B2 Three-level inverter, power conditioner, and power generating system 有权
标题翻译：三电平逆变器，功率调节器和发电系统
公开(公告)号：US08773876B2
公开(公告)日：2014-07-08
申请号：US13172804
申请日：2011-06-29
申请人： Takashi Kuboyama , Katsutoshi Yamanaka
发明人： Takashi Kuboyama , Katsutoshi Yamanaka
IPC分类号： H02M7/53862 , H02M7/5387
CPC分类号： H02M7/487 , H02J3/383 , H02M3/155 , H02M2001/007 , Y02E10/563
摘要： A three-level inverter includes a set of series-connected capacitors connected in parallel to a direct-current power supply; two arms connected in parallel to an output of the direct-current power supply and each having an alternating-current output terminal; and a control section having a neutral voltage controller determining a three-phase voltage correction command based on a neutral voltage and voltage of the direct-current power supply, having a coordinate converter converting the three-phase voltage correction command to a voltage correction command on d-q axis, and suppressing voltage variations at the neutral point by correcting a voltage command on d-q axis based on the d-q voltage correction command. The neutral point is connected to one grounded phase of a three-phase grounded power system. The alternating-current output terminals are connected to respective non-grounded phases of the power system. A power conditioner includes the three-level inverter. A power generating system includes the power conditioner.
摘要翻译：三电平逆变器包括与直流电源并联连接的一组串联电容器; 两个臂并联连接到直流电源的输出端，并且每个臂具有交流输出端子; 以及控制部分，具有中性电压控制器，其基于直流电源的中性点和电压来确定三相电压校正命令，该坐标转换器将三相电压校正命令转换为电压校正命令 dq轴，并且通过基于dq电压校正命令校正dq轴上的电压指令来抑制中性点处的电压变化。中性点连接到三相接地电源系统的一个接地相。交流输出端子连接到电力系统的各个非接地相。功率调节器包括三电平逆变器。发电系统包括功率调节器。

2. 发明申请

US20120002454A1 THREE-LEVEL INVERTER, POWER CONDITIONER, AND POWER GENERATING SYSTEM 有权
标题翻译：三电平逆变器，功率调节器和发电系统
公开(公告)号：US20120002454A1
公开(公告)日：2012-01-05
申请号：US13172804
申请日：2011-06-29
申请人： Takashi KUBOYAMA , Katsutoshi Yamanaka
发明人： Takashi KUBOYAMA , Katsutoshi Yamanaka
IPC分类号： H02M7/5387
CPC分类号： H02M7/487 , H02J3/383 , H02M3/155 , H02M2001/007 , Y02E10/563
摘要： A three-level inverter includes a set of series-connected capacitors connected in parallel to a direct-current power supply; two arms connected in parallel to an output of the direct-current power supply and each having an alternating-current output terminal; and a control section having a neutral voltage controller determining a three-phase voltage correction command based on a neutral voltage and voltage of the direct-current power supply, having a coordinate converter converting the three-phase voltage correction command to a voltage correction command on d-q axis, and suppressing voltage variations at the neutral point by correcting a voltage command on d-q axis based on the d-q voltage correction command. The neutral point is connected to one grounded phase of a three-phase grounded power system. The alternating-current output terminals are connected to respective non-grounded phases of the power system. A power conditioner includes the three-level inverter. A power generating system includes the power conditioner.
摘要翻译：三电平逆变器包括与直流电源并联连接的一组串联电容器; 两个臂并联连接到直流电源的输出端，并且每个臂具有交流输出端子; 以及控制部分，具有中性电压控制器，其基于直流电源的中性点和电压来确定三相电压校正命令，该坐标转换器将三相电压校正命令转换为电压校正命令 dq轴，并且通过基于dq电压校正命令校正dq轴上的电压指令来抑制中性点处的电压变化。中性点连接到三相接地电源系统的一个接地相。交流输出端子连接到电力系统的各个非接地相。功率调节器包括三电平逆变器。发电系统包括功率调节器。

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