公开(公告)号：US09929675B2

公开(公告)日：2018-03-27

申请号：US14630658

申请日：2015-02-25

Applicant: FSP TECHNOLOGY INC.

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

IPC: H02M3/335 ,  H02M7/48 ,  H02J3/38 ,  H02M1/00

CPC classification number: H02M7/4826 ,  H02J3/383 ,  H02M3/33507 ,  H02M2001/0035 ,  H02M2001/0058 ,  H02M2001/007 ,  H02M2007/4815 ,  Y02B70/1491 ,  Y02B70/16 ,  Y02E10/563

Abstract: An inverter apparatus is provided. The inverter apparatus includes a direct current to direct current (DC/DC) converter, a direct current to alternating current (DC/AC) converter and a control circuit. The DC/DC converter is arranged for converting an input power to a DC power according to a control signal. The DC/AC converter is coupled to the DC/DC converter, and is arranged for receiving the DC power, and generating an AC power according to the DC power. The control circuit is coupled to the DC/DC converter, and is arranged for generating the control signal according to a reference power and the input power so as to control an operation of the DC/DC converter, detecting the control signal to generate a detection result, and controlling the reference power according to the detection result so as to adjust a duty cycle of the control signal.

公开(公告)号：US09614430B2

公开(公告)日：2017-04-04

申请号：US14630651

申请日：2015-02-25

Applicant: FSP TECHNOLOGY INC.

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

IPC: H02M1/32 ,  H02M7/48 ,  H02J3/38

CPC classification number: H02M1/32 ,  H02J3/383 ,  H02M7/48 ,  Y02E10/563

Abstract: An inverting apparatus and an AC power system are provided. The inverting apparatus includes an inverting circuit, a detection circuit, and a control circuit. The inverting circuit receives a DC input voltage and converts the DC input voltage into an AC output voltage. The detection circuit samples the AC output voltage and compares the sampled AC output voltage respectively with a first reference voltage and a second reference voltage so as to generate a first indication signal and a second indication signal. The control circuit controls the operation of the inverting circuit. The control circuit determines whether the amplitude of the AC output voltage is located within an operating voltage range during each driving cycles according to the first and the second indication signals, and decides whether to enable an overvoltage protection or an undervoltage protection to control the power conversion of the inverting circuit according to the determination results.

公开(公告)号：US09541587B2

公开(公告)日：2017-01-10

申请号：US14631846

申请日：2015-02-26

Applicant: FSP TECHNOLOGY INC.

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

IPC: H02M7/44 ,  G01R21/06 ,  G05F1/67 ,  H02M7/48 ,  H02J3/38

CPC classification number: G01R21/06 ,  G05F1/67 ,  H02J3/385 ,  H02M7/48 ,  Y02E10/58

Abstract: An inverting apparatus and a control method thereof are provided. The inverting apparatus includes an inverting circuit, a detection circuit, and a control circuit. The inverting circuit converts a DC input power into an AC output power. The detection circuit detects an input voltage and an input current. The control circuit provides a control signal for disturbing the input voltage, such that a voltage value of the input voltage is adjusted to a command voltage represented by the control signal. The control circuit calculates an input power corresponding to each of time points, calculates a power variation between the disturbed power and the undisturbed power, then determines whether the power variation is larger than a predetermined variation, and sets a disturbance voltage according to the determination result, based on an MPPT operation or based on a disturbance direction of the command voltage of the previous time point.

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，检测电路和控制电路。 反相电路将直流输入功率转换为交流输出功率。 检测电路检测输入电压和输入电流。 控制电路提供用于干扰输入电压的控制信号，使得输入电压的电压值被调整为由控制信号表示的指令电压。 控制电路计算与每个时间点对应的输入功率，计算干扰功率与未干扰功率之间的功率变化，然后确定功率变化是否大于预定变化，并根据确定结果设置干扰电压 ，基于MPPT操作或基于前一时间点的指令电压的干扰方向。

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。

公开(公告)号：US11025156B2

公开(公告)日：2021-06-01

申请号：US16504312

申请日：2019-07-07

Applicant: FSP TECHNOLOGY INC.

Inventor： Yaw-Chien Huang ,  Chun-Hao Yu ,  Kuo-Chieh Chan

IPC: H02M1/32 ,  H02H9/02 ,  G01R15/04 ,  H02M1/00

Abstract: A power apparatus, a current detecting circuit and a current detecting method are provided. The power apparatus includes a power conversion circuit and the current detecting circuit. The power conversion circuit generates an output current. The current detecting circuit includes first and second current sensing resistors and a control circuit. The first current sensing resistor and the second current sensing resistor sense the output current to generate first and second sensing voltage, respectively. The control circuit receives the first sensing voltage and the second sensing voltage, and converts the first sensing voltage and the second sensing voltage respectively into a first current sensing value and a second current sensing value. The control circuit triggers a protection mechanism when the first current sensing value is greater than a first overcurrent protection value. In the case where the first current sensing value is not greater than the first overcurrent protection value, the control circuit triggers the protection mechanism if the second current sensing value is greater than a second overcurrent protection value. The first overcurrent protection value is greater than the second overcurrent protection value.

公开(公告)号：US09590484B2

公开(公告)日：2017-03-07

申请号：US14623502

申请日：2015-02-17

Applicant: FSP TECHNOLOGY INC.

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

IPC: H02M1/12 ,  H02M7/5395 ,  H02J3/01 ,  H02J3/38 ,  H02M7/44

CPC classification number: H02M1/12 ,  H02J3/01 ,  H02J3/383 ,  H02M7/44 ,  H02M7/5395 ,  Y02E10/563 ,  Y02E40/40

Abstract: The invention is directed to an inverter device and a power converting method thereof. A control unit adjusts a pulse width modulation (PWM) signal serving to control power conversion of an inverter circuit according to a current harmonic component detected by a detection unit to generate an offset current to be superposed to an AC current output by the inverter circuit.

Abstract translation: 本发明涉及逆变器装置及其功率转换方法。 控制单元根据由检测单元检测的电流谐波分量来调整用于控制逆变器电路的功率转换的脉冲宽度调制（PWM）信号，以生成与由反相器电路输出的AC电流叠加的偏移电流。

公开(公告)号：US09564830B2

公开(公告)日：2017-02-07

申请号：US14631850

申请日：2015-02-26

Applicant: FSP TECHNOLOGY INC.

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

IPC: H02M7/44 ,  H02M1/00 ,  H02M7/48 ,  G05F1/67 ,  H02J3/38

CPC classification number: H02M7/48 ,  G05F1/67 ,  H02J3/385 ,  Y02E10/58

Abstract: An inverting apparatus and a control method thereof are provided. The inverting apparatus includes an inverting circuit, a detection circuit, and a control circuit. The control circuit is coupled to the inverting circuit and the detection circuit and configured to provide a control signal to control the inverting circuit so as to adjust a voltage value of an input voltage into a command voltage represented by the control signal. The control circuit calculates a voltage difference between the detected input voltage and the command voltage so as to determine whether the voltage difference is greater than a preset value. When determining that the voltage difference is greater than the preset value, the control circuit sets the voltage value of the command voltage as the voltage value of the current input voltage.

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，检测电路和控制电路。 控制电路耦合到反相电路和检测电路，并且被配置为提供控制信号以控制反相电路，以将输入电压的电压值调整为由控制信号表示的指令电压。 控制电路计算检​​测的输入电压和指令电压之间的电压差，以便确定电压差是否大于预设值。 当确定电压差大于预设值时，控制电路将指令电压的电压值设置为当前输入电压的电压值。

公开(公告)号：US09515573B2

公开(公告)日：2016-12-06

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 ,  H02M7/48 ,  H02M3/335

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：US09450515B2

公开(公告)日：2016-09-20

申请号：US14629462

申请日：2015-02-23

Applicant: FSP TECHNOLOGY INC.

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

IPC: H02M1/36 ,  H02M7/537 ,  H02M7/48 ,  H02M1/44 ,  H02M1/00

CPC classification number: H02M7/48 ,  H02M1/44 ,  H02M2001/0022 ,  H02M2001/0032 ,  H02M2001/0058 ,  H02M2001/007 ,  Y02B70/1491 ,  Y02B70/16

Abstract: A control method for an inverter apparatus is provided. The inverter apparatus includes a direct current to direct current (DC/DC) converter and a direct current to alternating current (DC/AC) converter. An output side of the DC/DC converter is coupled to an input side of the DC/AC converter. The control method includes the following steps: outputting a DC power from the output side of the DC/DC converter; receiving the DC power from the input side of the DC/AC converter, and generating an AC power from an output side of the DC/AC converter according to the DC power; and detecting the DC power, and accordingly controlling an operation of the DC/AC converter.

Abstract translation: 提供了一种逆变器装置的控制方法。 逆变器装置包括直流到直流（DC / DC）转换器和直流到交流（DC / AC）转换器的直流电。 DC / DC转换器的输出侧耦合到DC / AC转换器的输入侧。 该控制方法包括以下步骤：从DC / DC转换器的输出侧输出直流电力; 从所述DC / AC转换器的输入侧接收直流电力，并根据所述DC电力从所述DC / AC转换器的输出侧产生AC电力; 并且检测直流电力，并因此控制DC / AC转换器的操作。