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1. 发明申请

US20170012552A1 FIVE-LEVEL CONVERTING DEVICE 有权
标题翻译：五电平转换器件
公开(公告)号：US20170012552A1
公开(公告)日：2017-01-12
申请号：US15134401
申请日：2016-04-21
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Hong-Jian GAN , Bo-Yu PU , Ming WANG
IPC分类号： H02M7/12
CPC分类号： H02M7/12 , H02M7/487
摘要： A five-level converting device includes a first switch module, a second switch module and a third switch modules each connects to a neutral point, a positive terminal and a negative terminal of a bus capacitor module. A first switch module includes a plurality of bidirectional switching circuits cascaded to each other, and each bidirectional switching circuit includes two first switching units reversely connected in series. Second switch module includes a plurality of second switching units connected in series. Third switch module includes a plurality of third switching units connected in series. A first flying capacitor unit is connected across the first switching module and a second switch module, and a second flying capacitor unit is connected across the first switching module and a third switching module. The first flying capacitor unit and the second flying capacitor unit are connected to different connection points between the first switch units respectively.
摘要翻译：五电平转换装置包括第一开关模块，第二开关模块和第三开关模块，每个模块连接到总线电容器模块的中性点，正极端子和负极端子。第一开关模块包括彼此级联的多个双向开关电路，并且每个双向开关电路包括串联反向连接的两个第一开关单元。第二开关模块包括串联连接的多个第二开关单元。第三开关模块包括串联连接的多个第三开关单元。第一飞行电容器单元连接在第一开关模块和第二开关模块之间，并且第二飞行电容器单元连接在第一开关模块和第三开关模块之间。第一飞行电容器单元和第二飞行电容器单元分别连接到第一开关单元之间的不同连接点。

2. 发明申请

US20150362529A1 POWER CONVERSION SYSTEM AND VOLTAGE SAMPLING DEVICE THEREOF 有权
标题翻译：电力转换系统及其电压采样装置
公开(公告)号：US20150362529A1
公开(公告)日：2015-12-17
申请号：US14732781
申请日：2015-06-08
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Hong-Jian GAN , Ming WANG , Bo-Yu PU , Yi ZHANG
IPC分类号： G01R1/20 , G01R19/00
CPC分类号： G01R19/2509 , G01R15/04
摘要： A voltage sampling system is provided. The voltage sampling system includes a first and a second input paths and a signal-processing module. The first input path includes a first input voltage-dividing resistor unit, a second input voltage-dividing resistor unit and a first DC voltage-dividing resistor unit to generate a first input divided voltage and a first DC bias voltage to further generate a first sampled voltage signal according to a first input voltage and a DC voltage source. The second input path includes a third input voltage-dividing resistor unit, a fourth input voltage-dividing resistor unit and a second DC voltage-dividing resistor unit to generate a second input divided voltage and a second DC bias voltage to further generate a second sampled voltage signal according to a second input voltage and the DC voltage source. The signal-processing module receives the first and the second sampled voltage signals to perform signal processing.
摘要翻译：提供电压采样系统。电压采样系统包括第一和第二输入路径和信号处理模块。第一输入路径包括第一输入分压电阻单元，第二输入分压电阻单元和第一直流分压电阻单元，用于产生第一输入分压和第一直流偏置电压，以进一步产生第一采样电压信号根据第一输入电压和直流电压源。第二输入路径包括第三输入分压电阻单元，第四输入分压电阻单元和第二直流分压电阻单元，用于产生第二输入分压和第二直流偏置电压，以进一步产生第二采样电压信号根据第二输入电压和直流电压源。信号处理模块接收第一和第二采样电压信号以执行信号处理。

3. 发明申请

US20150362528A1 VOLTAGE SAMPLING SYSTEM 有权
标题翻译：电压采样系统
公开(公告)号：US20150362528A1
公开(公告)日：2015-12-17
申请号：US14695029
申请日：2015-04-23
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Bo-Yu PU , Yi ZHANG , Ming WANG , Hong-Jian GAN , Jian-Ping YING
IPC分类号： G01R1/20 , H03M5/12 , H03M1/12 , G01R1/24
CPC分类号： G01R19/2509 , G01R15/04 , H03M5/12
摘要： A voltage sampling system is provided. The voltage sampling system includes a voltage sampling device, two optic-fiber transmission lines and a control device. The voltage sampling device includes a voltage-dividing resistor module, a common mode rejection circuit and an analog-to-digital converter. The voltage-dividing resistor module generates a first and a second divided voltages according to a voltage source. The common mode rejection circuit receives the first and the second divided voltages to perform a common-mode noise rejecting process to generate an output voltage. The analog-to-digital converter converts the output voltage to generate a digital data signal. The two optic-fiber transmission lines transmit the digital data signal and a clock signal respectively. The control device receives the digital data signal from the analog-to-digital converter and the clock signal to perform a digital data processing.
摘要翻译：提供电压采样系统。电压采样系统包括电压采样装置，两条光纤传输线和一个控制装置。电压采样装置包括分压电阻模块，共模抑制电路和模 - 数转换器。分压电阻模块根据电压源产生第一和第二分压。共模抑制电路接收第一和第二分压，以执行共模噪声抑制处理以产生输出电压。模数转换器转换输出电压以产生数字数据信号。两条光纤传输线分别发送数字数据信号和时钟信号。控制装置从模数转换器和时钟信号接收数字数据信号，以执行数字数据处理。

4. 发明申请

US20170012554A1 FIVE-LEVEL CONVERTING DEVICE 有权
标题翻译：五电平转换器件
公开(公告)号：US20170012554A1
公开(公告)日：2017-01-12
申请号：US15135547
申请日：2016-04-21
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Bo-Yu PU , Ming WANG
IPC分类号： H02M7/483 , H02M7/515 , H02M7/06 , H02M7/217 , H02M7/155 , H02M7/537 , H02M7/46
CPC分类号： H02M7/483 , H02M7/06 , H02M7/155 , H02M7/217 , H02M7/46 , H02M7/487 , H02M7/515 , H02M7/537
摘要： A five-level converting device includes an AC terminal, a bus capacitor module having a positive terminal, a negative terminal and a neutral terminal, a first switch module and a second switch module. The first switch module includes a bidirectional switching circuit, and the bidirectional switching circuit includes two first switching units reversely connected in series. The second switch module includes two second switching units, two third switching units, two fourth switching units, and two fifth switching units. The two second switching units are cascaded and connected to the two fourth switching units in parallel. The third, the fourth and the fifth switching units are cascaded and are connected to the bus capacitor module in parallel. Two different connection points of the first switch module are connected to the third switching units and fifth switching units through two flying capacitor modules respectively.
摘要翻译：五电平转换装置包括AC端子，具有正极端子的总线电容器模块，负极端子和中性端子，第一开关模块和第二开关模块。第一开关模块包括双向开关电路，并且双向开关电路包括串联反向连接的两个第一开关单元。第二开关模块包括两个第二开关单元，两个第三开关单元，两个第四开关单元和两个第五开关单元。两个第二开关单元级联并并联连接到两个第四开关单元。第三，第四和第五开关单元级联并且并联连接到总线电容器模块。第一开关模块的两个不同的连接点分别通过两个飞行电容器模块连接到第三开关单元和第五开关单元。

5. 发明申请

US20150349521A1 SHORT- CIRCUIT DETECTION DEVICE AND METHOD USED IN INVERTER CIRCUIT 有权
标题翻译：短路电路检测装置和逆变器电路中使用的方法
公开(公告)号：US20150349521A1
公开(公告)日：2015-12-03
申请号：US14711762
申请日：2015-05-13
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Liang LIU , Bo-Yu PU , Yi ZHANG , Hong-Jian GAN , Jian-Ping YING
IPC分类号： H02H9/02
CPC分类号： H02H7/1225 , G01R31/025 , G01R31/42 , H02H1/0007 , H02H9/02 , H02M1/32 , H02M7/487
摘要： A method for detecting a short circuit fault in a multi-level inverter circuit is provided. The multi-level inverter circuit includes a plurality of single phase branches each including of switches. The method includes steps outlined below. At least one detecting pulse sequence is transmitted to the switches of each of the single phase branches. Whether a conducting path is formed in any of the single phase branches is determined according to the detecting pulse sequence. When the conducting loop is formed, respective position of one or more malfunctioned switch in the single phase branches is located according to a path of the conducting loop. A short-circuit detection device and a three-phase three-level inverter circuit are also disclosed herein.
摘要翻译：提供了一种用于检测多电平逆变器电路中的短路故障的方法。多电平逆变器电路包括多个单相分支，每个分支包括开关。该方法包括以下概述的步骤。至少一个检测脉冲序列被发送到每个单相分支的开关。根据检测脉冲序列确定在任何单相分支中是否形成导电路径。当形成导通回路时，根据导通回路的路径来定位单相分支中的一个或多个故障开关的相应位置。本文还公开了短路检测装置和三相三电平逆变器电路。

6. 发明申请

US20150346276A1 CONVERTER CIRCUIT AND OPEN-CIRCUIT DETECTION METHOD OF THE SAME 有权
标题翻译：转换器电路及其开路检测方法
公开(公告)号：US20150346276A1
公开(公告)日：2015-12-03
申请号：US14682122
申请日：2015-04-09
申请人： Delta Electronics (Shanghai) Co., Ltd.
发明人： Liang LIU , Bo-Yu PU , Yi ZHANG , Hong-Jian GAN , Jian-Ping YING
IPC分类号： G01R31/28
CPC分类号： G01R31/2884 , G01R31/026 , G01R31/2853 , H02M1/32 , H02M7/487
摘要： A converter circuit is provided. The converter circuit includes a capacitor module, bridge arms, a voltage measuring module and an open-circuit detection module. Each bridge arm is connected to the capacitor module in parallel and includes an upper arm and a lower bridge arm connected at a middle point. The voltage measuring module measures voltage differences between each two bridge arms. The open-circuit detection module transmits test impulse signals to the bridge arms to activate at least one upper-conducted bridge arm and at least one lower-conducted bridge arm. The open-circuit detection module retrieves the voltage differences of each pair of the upper-conducted and lower-conducted bridge arms to make comparison with a reference value to determine an operation state thereof, and makes comparison of the operation state determined according to the different groups of test impulse signals to determine whether the upper and the lower bridge arms are actually open circuit.
摘要翻译：提供A转换器电路。转换器电路包括电容器模块，桥臂，电压测量模块和开路检测模块。每个桥臂平行连接到电容器模块，并且包括连接在中点处的上臂和下桥臂。电压测量模块测量两个桥臂之间的电压差。开路检测模块将测试脉冲信号发送到桥臂以激活至少一个上导电桥臂和至少一个下导电桥臂。开路检测模块检索每对上导通桥臂和下导通桥臂的电压差，以与参考值进行比较，以确定其运行状态，并将根据不同的运行状态确定的运行状态进行比较一组测试脉冲信号，以确定上桥臂和下桥臂实际上是否开路。

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