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1. 发明授权

US11901737B2 Distributed-power-supply power conversion system 有权
公开(公告)号：US11901737B2
公开(公告)日：2024-02-13
申请号：US17754549
申请日：2020-02-07
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Issei Fukasawa , Tatsuaki Ambo , Ruben Alexis Inzunza Figueroa
IPC分类号： H02J3/38 , G01R31/40 , H02M7/493
CPC分类号： H02J3/38 , G01R31/40 , H02M7/493 , H02J2300/24
摘要： A distributed-power-supply power conversion system includes a plurality of power inverters configured to invert DC power to AC power; and a control device configured to select at least one power inverter from the plurality of power inverters as a power inverter used for testing, and configured to perform an energization test of the power inverter used for testing in a state where an AC side of the power inverter used for testing is disconnected from a system, and is connected to an AC power supply device and to a load bank, and a voltage on the AC side of the power inverter used for testing is established. The distributed-power-supply power conversion system can perform an energization test of a power inverter before a system receives power.

2. 发明申请

US20160141978A1 CONTROL APPARATUS FOR PHOTOVOLTAIC INVERTER 有权
标题翻译：光伏逆变器的控制装置
公开(公告)号：US20160141978A1
公开(公告)日：2016-05-19
申请号：US15002829
申请日：2016-01-21
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Yuji Matsuoka , Ruben Alexis Inzunza Figueroa , Tatsuaki Ambo
IPC分类号： H02M7/537
CPC分类号： H02M7/537 , H02J3/1842 , H02J3/385 , Y02E10/58 , Y02E40/22
摘要： There is provided a control apparatus for a photovoltaic inverter. The control apparatus includes a system voltage detector, a DC voltage detector that detects a DC voltage applied to the inverter, an output voltage deficiency detector that detects an output voltage deficiency of the inverter based on the system voltage and the DC voltage, an output-current detector, an output-current distortion detector that detects distortion of the output current based on a harmonic included in the output current, a MPPT controller, and an output-current distortion controller that performs control to set the DC voltage applied to the inverter to a voltage at a power point less than a maximum power point when the output voltage deficiency is detected and the distortion of the output current is detected.
摘要翻译：提供了一种用于光伏逆变器的控制装置。控制装置包括：系统电压检测器，检测施加到逆变器的直流电压的直流电压检测器;输出电压不足检测器，其基于系统电压和直流电压检测逆变器的输出电压不足; 电流检测器，基于包括在输出电流中的谐波来检测输出电流的失真的输出电流失真检测器，MPPT控制器和输出电流失真控制器，其执行将施加到逆变器的直流电压设置为当检测到输出电压不足并且检测到输出电流的失真时，在小于最大功率点的功率点处的电压。

3. 发明授权

US09948207B2 Inverter control apparatus 有权
公开(公告)号：US09948207B2
公开(公告)日：2018-04-17
申请号：US15187096
申请日：2016-06-20
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Ruben Alexis Inzunza Figueroa , Takeshi Sumiya , Tatsuaki Ambo
IPC分类号： H02M7/537 , H02M1/12 , H02J3/38 , H02M7/48 , H02M1/14
CPC分类号： H02M7/537 , H02J3/383 , H02J3/385 , H02M1/12 , H02M1/126 , H02M1/14 , H02M1/32 , H02M7/48 , H02M7/5387
摘要： There is provided an inverter control apparatus, a capacitor being provided on an AC side of the inverter. The apparatus includes a system voltage detector detects a system voltage, a differentiation unit calculates a differential value of the system voltage, a correction current instruction value calculator calculates a correction current instruction value for correcting a current instruction value set for an output current of the inverter, based on the differential value of the system voltage, a current instruction value correction unit corrects the current instruction value, based on the correction current instruction value, and a controller controls the inverter based on the current instruction value.

4. 发明授权

US09337750B2 Power conversion apparatus 有权
标题翻译：电力转换装置
公开(公告)号：US09337750B2
公开(公告)日：2016-05-10
申请号：US13973645
申请日：2013-08-22
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Ruben Alexis Inzunza Figueroa , Eiichi Ikawa , Takeshi Sumiya
IPC分类号： H02M5/45 , H02M5/458 , H02M5/42 , H02M7/68 , H02M3/24 , H02M7/44 , H02M7/5395 , H02J3/38 , H02M7/5387
CPC分类号： H02M7/5395 , H02J3/386 , H02M5/458 , H02M7/53871 , Y02E10/763
摘要： A power conversion apparatus includes an inverter circuit including a switching element, a system voltage measurement unit measuring a system voltage of a power system, a voltage drop detector detecting a voltage drop of the power system, a carrier wave generator generating a carrier wave, a carrier wave frequency modulator increasing a frequency of the carrier wave, when the voltage drop is detected, a signal wave generator generating a signal wave to control the inverter circuit, a gate signal generator comparing the carrier wave with the signal wave, and generating a gate signal, and a power conversion controller controlling the inverter circuit, based on the gate signal.
摘要翻译：电力转换装置包括：逆变器电路，包括开关元件，测量电力系统的系统电压的系统电压测量单元，检测电力系统的电压降的电压降检测器，产生载波的载波发生器，载波频率调制器增加载波的频率，当检测到电压降时，产生信号波的信号波发生器来控制逆变器电路，门信号发生器将载波与信号波进行比较，并产生一个门信号，以及基于门信号控制逆变器电路的电力转换控制器。

5. 发明授权

US08988906B2 Power conversion apparatus 有权
标题翻译：电力转换装置
公开(公告)号：US08988906B2
公开(公告)日：2015-03-24
申请号：US13973591
申请日：2013-08-22
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Ruben Alexis Inzunza Figueroa , Eiichi Ikawa , Takeshi Sumiya
IPC分类号： H02M5/45 , H02M7/5395 , H02J3/38 , H02M7/5387 , H02M5/458
CPC分类号： H02M7/5395 , H02J3/386 , H02M5/4585 , H02M7/53871 , Y02E10/763
摘要： A power conversion apparatus includes an inverter circuit, a system voltage measurement unit measuring a system voltage, a voltage drop detector detecting a voltage drop of a power system, based on the system voltage, a direct current power measurement unit measuring a direct current power to be input into the inverter circuit, an alternating current command value calculator calculating an alternating current command value to control an alternating current output from the inverter circuit, based on the direct current power and the system voltage, and a current limiter that decrease a current limit value to limit the alternating current command value, when the voltage drop is detected.
摘要翻译：电力转换装置包括逆变器电路，测量系统电压的系统电压测量单元，基于系统电压检测电力系统的电压降的电压降检测单元，测量直流电力的直流电力测量单元输入到逆变器电路中，交流电流指令值计算器基于直流电力和系统电压，计算交流指令值，以控制从逆变器电路输出的交流电流，以及降低电流限制的限流器值，以便在检测到电压降时限制交流指令值。

6. 发明授权

US09673733B2 Control apparatus for photovoltaic inverter 有权
公开(公告)号：US09673733B2
公开(公告)日：2017-06-06
申请号：US15002829
申请日：2016-01-21
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Yuji Matsuoka , Ruben Alexis Inzunza Figueroa , Tatsuaki Ambo
IPC分类号： H02M7/539 , H02M7/537 , H02J3/18 , H02J3/38 , G05F1/67
CPC分类号： H02M7/537 , H02J3/1842 , H02J3/385 , Y02E10/58 , Y02E40/22
摘要： There is provided a control apparatus for a photovoltaic inverter. The control apparatus includes a system voltage detector, a DC voltage detector that detects a DC voltage applied to the inverter, an output voltage deficiency detector that detects an output voltage deficiency of the inverter based on the system voltage and the DC voltage, an output-current detector, an output-current distortion detector that detects distortion of the output current based on a harmonic included in the output current, a MPPT controller, and an output-current distortion controller that performs control to set the DC voltage applied to the inverter to a voltage at a power point less than a maximum power point when the output voltage deficiency is detected and the distortion of the output current is detected.

7. 发明授权

US09459310B2 Inverter test apparatus 有权
标题翻译：变频器测试仪
公开(公告)号：US09459310B2
公开(公告)日：2016-10-04
申请号：US13799979
申请日：2013-03-13
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Ruben Alexis Inzunza Figueroa , Tatsuaki Amboh
IPC分类号： G01R31/00 , G01R31/28 , G01R31/42
CPC分类号： G01R31/28 , G01R31/42
摘要： There is provided an inverter test apparatus for testing an inverter interconnected with an alternating-current power system, the apparatus including an alternating-current power output unit configured to output alternating-current power, and an alternating-current power controller configured to control the alternating-current power output from the alternating-current power output unit to simulate an alternating-current load of the inverter.
摘要翻译：提供了一种用于测试与交流电力系统互连的逆变器的逆变器测试装置，该装置包括被配置为输出交流电力的交流电力输出单元和被配置为控制交流电的交流电力控制器 - 从交流电力输出单元输出的电流来模拟逆变器的交流负载。

8. 发明授权

US11018495B2 Control device for electric power conversion apparatus 有权
公开(公告)号：US11018495B2
公开(公告)日：2021-05-25
申请号：US16621724
申请日：2017-06-23
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Yoshihiro Tawada , Ruben Alexis Inzunza Figueroa , Tatsuaki Ambo , Masahiro Kinoshita
IPC分类号： H02H7/122 , H02J3/38 , H02M7/5387 , H02H1/00 , H02M1/32
摘要： A control device for an electric power conversion apparatus, the control device detecting occurrence of an earth fault in a direct-current path in a system in which the direct-current path between a solar cell module and an electric power conversion apparatus is grounded, is provided. The control device for the electric power conversion apparatus includes: a grounding control unit configured to, in a system in which a direct-current path between a solar cell module and an electric power conversion apparatus is grounded via a switch, control a switch; and an earth fault determination unit configured to, when the switch is open under the controlled of the grounding control unit, detect whether or not an earth fault has occurred in the direct-current path.

9. 发明授权

US09300226B2 Solar power generation system 有权
标题翻译：太阳能发电系统
公开(公告)号：US09300226B2
公开(公告)日：2016-03-29
申请号：US13973641
申请日：2013-08-22
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Ruben Alexis Inzunza Figueroa , Eiichi Ikawa , Takeshi Sumiya
IPC分类号： G05F1/67 , H02M7/539 , H02M1/14 , H02M1/32 , H02J3/38 , H02M7/5395
CPC分类号： H02M7/539 , G05F1/67 , H02J3/383 , H02J3/385 , H02M1/14 , H02M1/32 , H02M7/5395 , Y02E10/563 , Y02E10/58
摘要： There is provided a solar power generation system including a solar cell, an inverter converting a direct current power generated by the solar cell into an alternating current power, a system voltage measurement unit measuring a system voltage, a voltage drop detector detecting a voltage drop of a power system, based on the system voltage, a first direct current voltage controller controlling a direct current voltage of the inverter to enhance a power generation efficiency of the solar cell, when the voltage drop is not detected, and a second direct current voltage controller controlling the direct current voltage of the inverter to suppress a current output from the inverter, when the voltage drop is detected.
摘要翻译：提供了一种太阳能发电系统，其包括太阳能电池，将由太阳能电池产生的直流电转换为交流电力的逆变器，测量系统电压的系统电压测量单元，检测电压降的电压降检测器基于系统电压的电力系统，当没有检测到电压降时，控制逆变器的直流电压的第一直流电压控制器，以提高太阳能电池的发电效率;以及第二直流电压控制器当检测到电压降时，控制逆变器的直流电压以抑制来自逆变器的电流输出。

10. 发明授权

US09252600B2 Connection apparatus for power converter 有权
标题翻译：电源转换器连接装置
公开(公告)号：US09252600B2
公开(公告)日：2016-02-02
申请号：US13673457
申请日：2012-11-09
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Ruben Alexis Inzunza Figueroa , Nobuhiro Takahashi , Eiichi Ikawa , Takeshi Sumiya , Yosuke Fujii
IPC分类号： H02J1/00 , H02J3/00 , H02J3/38 , H02M7/42
CPC分类号： H02J3/383 , H02J3/38 , H02M7/003 , H02M7/42 , Y02E10/563 , Y10T307/696 , Y10T307/707
摘要： A power converter apparatus is provided with a lead-in board in which alternating-current power received from power converting units is connected in parallel, and a connection base including frames for installing the power converting units therein. The frames are provided with connection sections for connecting the main circuits of the power converting units. The lead-in board is provided with breakers for cut off alternating-current power from the power converting units.
摘要翻译：一种电力转换装置，具备：从电力转换单元接收的交流电力并联连接的引入板，以及包括用于在其中安装电力转换单元的框架的连接基座。这些框架设置有用于连接电力转换单元的主电路的连接部分。引入电路板配有断路器，用于切断电力转换单元的交流电源。

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