公开(公告)号：US20150244256A1

公开(公告)日：2015-08-27

申请号：US14631848

申请日：2015-02-26

Applicant: FSP TECHNOLOGY INC.

Inventor： Han-Wei Chen ,  Chun-Hao Yu ,  Chia-Hua Liu

IPC: H02M1/42 ,  H02M7/44

CPC classification number: H02M7/48 ,  H02M1/4266 ,  H02M3/33507 ,  H02M3/33523 ,  Y02B70/123 ,  Y02P80/112

Abstract: An inverting apparatus and a control method thereof are provided. The inverting apparatus includes an inverting circuit, a capacitor, and a control circuit. The inverting circuit receives a DC input power and is configured to convert the DC input power into an AC output power, wherein an AC output current of the AC output power is preset to a preset output current. The capacitor is connected to an output terminal of the inverting circuit. The control circuit is coupled to the inverting circuit and is configured to control a power conversion of the inverting circuit, wherein the control circuit superimposes a preset capacitor compensation current of which the phase leads to the preset output current on the preset output current, so as to control the inverting circuit to adjust the AC output current and provide the adjusted AC output current to a power grid.

Abstract translation: 提供了翻转装置及其控制方法。 反相装置包括反相电路，电容器和控制电路。 反相电路接收直流输入电力，并且被配置为将直流输入功率转换为交流输出功率，其中交流输出功率的交流输出电流被预设为预设的输出电流。 电容器连接到反相电路的输出端。 控制电路耦合到反相电路，并且被配置为控制反相电路的功率转换，其中控制电路将预置的电容器补偿电流叠加在预设的输出电流上，使预置的输出电流达到预设的输出电流，以便 控制反相电路调整交流输出电流，并将调整后的交流输出电流提供给电网。

公开(公告)号：US20150244253A1

公开(公告)日：2015-08-27

申请号：US14631841

申请日：2015-02-26

Applicant: FSP TECHNOLOGY INC.

Inventor： Han-Wei Chen ,  Chun-Hao Yu ,  Chia-Hua Liu

IPC: H02M1/32 ,  H02M7/537

CPC classification number: H02M1/32 ,  H02M7/48 ,  Y02E10/56

Abstract: An inverting apparatus and a photovoltaic power system using the same are provided. The inverting apparatus includes an inverting circuit, a control circuit, and a voltage regulator-based ground detection circuit. The control circuit controls the power conversion of the inverting circuit. The voltage regulator-based ground detection circuit samples an input voltage of the DC input power, and performs voltage regulation and voltage division on the input voltage to generate a ground indication voltage. The electric potential of the output terminal of the voltage regulator is built based on a photovoltaic ground terminal of a photovoltaic module. The ground indication voltage is the voltage difference between an output terminal of the voltage regulator and a device ground terminal of the inverting apparatus. The control circuit determines whether a ground fault occurs to the photovoltaic module and enables a ground protection mechanism to control the inverting circuit when the ground fault occurs.

Abstract translation: 提供了一种反相装置和使用该反相装置的光伏电力系统。 反相装置包括反相电路，控制电路和基于电压调节器的接地检测电路。 控制电路控制反相电路的功率转换。 基于电压调节器的接地检测电路对直流输入电源的输入电压进行采样，并对输入电压进行电压调节和分压，以产生接地指示电压。 基于光伏模块的光电接地端子构建稳压器的输出端子的电位。 接地指示电压是电压调节器的输出端子和反相装置的器件接地端子之间的电压差。 控制电路确定光伏模块是否发生接地故障，并且在接地故障发生时使接地保护机构能够控制反相电路。