公开(公告)号：US20130077366A1

公开(公告)日：2013-03-28

申请号：US13279000

申请日：2011-10-21

申请人： Kyoung Hwan KIM ,  Young Sang Bae ,  Seong Jin Oh

发明人： Kyoung Hwan KIM ,  Young Sang Bae ,  Seong Jin Oh

IPC分类号： H02M7/44

CPC分类号： H02J3/385 ,  H01L31/02021 ,  H02M7/5395 ,  Y02E10/58

摘要： Provided are a solar energy generation system having an adaptive maximum power point tracking function and a method thereof. The solar energy generation system includes: a minimum maintenance voltage determination unit configured to output a minimum maintenance voltage which enables the inverter to maintain an operation thereof corresponding to a grid voltage of the grid; a maximum power point tracking controller configured to determine a maximum power point tracking voltage at a maximum power point of the photovoltaic module, using the minimum maintenance voltage and an output voltage and output current of the photovoltaic module, and to output a reference voltage to track the maximum power point; a voltage calculator configured to calculate a difference between the reference voltage and the output voltage of the photovoltaic module; and a voltage adjuster configured to generate a reference current value using an output of the voltage calculator.

摘要翻译： 提供一种具有自适应最大功率点跟踪功能的太阳能发电系统及其方法。 太阳能发电系统包括：最小维持电压确定单元，其被配置为输出使逆变器能够维持其对应于电网的电网电压的操作的最小维护电压; 最大功率点跟踪控制器，其被配置为使用所述光伏模块的最小维护电压和输出电压和输出电流来确定所述光伏模块的最大功率点处的最大功率点跟踪电压，并且将参考电压输出到轨道 最大功率点; 电压计算器，被配置为计算所述光伏模块的参考电压和所述输出电压之间的差; 以及电压调节器，被配置为使用所述电压计算器的输出来产生参考电流值。

公开(公告)号：US20130076151A1

公开(公告)日：2013-03-28

申请号：US13278962

申请日：2011-10-21

申请人： Young Sang BAE ,  Seong Jin Oh ,  Kyoung Hwan Kim

发明人： Young Sang BAE ,  Seong Jin Oh ,  Kyoung Hwan Kim

IPC分类号： H02M7/5387

CPC分类号： H01L31/02021 ,  H02J3/383 ,  H02M1/126 ,  H02M7/493 ,  H02M2001/123 ,  Y02E10/563 ,  Y10T307/707

摘要： A photovoltaic generation system using grid-connected parallel inverters comprises a plurality of photovoltaic generation devices connected in parallel with each other, and a transformer configured to transform and transfer output voltages of the photovoltaic generation devices to a grid, wherein the photovoltaic generation device includes: a photovoltaic module configured to convert photovoltaic energy into DC electrical energy; an inverter configured to convert the DC electrical energy outputted from the photovoltaic module into AC electrical energy; an LC filter configured to remove noise included in the AC electrical energy which is outputted from the inverter; and a Y-connected capacitor group which is connected between one terminal of a reactor in the LC filter and one terminal of the photovoltaic module and is configured to reduce stray current.

摘要翻译： 使用并联并联逆变器的光伏发电系统包括彼此并联连接的多个光伏发电装置，以及被配置为将光伏发电装置的输出电压转换并传送到电网的变压器，其中该光伏发电装置包括： 光伏模块，被配置为将光能转换为直流电能; 逆变器，被配置为将从光伏模块输出的直流电能转换为交流电能; LC滤波器，被配置为去除从逆变器输出的AC电能中包含的噪声; 以及Y连接的电容器组，其连接在LC滤波器的电抗器的一个端子和光伏模块的一个端子之间，并且被配置为减少杂散电流。

公开(公告)号：US20130058139A1

公开(公告)日：2013-03-07

申请号：US13278992

申请日：2011-10-21

申请人： Young Sang BAE ,  Seong Jin OH ,  Kyoung Hwan KIM

发明人： Young Sang BAE ,  Seong Jin OH ,  Kyoung Hwan KIM

IPC分类号： H02H7/122

CPC分类号： H02H3/38 ,  H02H7/122 ,  H02H7/20

摘要： A new and renewable energy generation system includes: an inverter for converting a DC voltage into an AC voltage; a three-phase/two-phase transformer for transforming an output of the inverter into a three-phase/two-phase stationary coordinate system; a phase locked loop for calculating the phase and frequency of an output voltage of the inverter; a phase shifter for generating a current phase reference value; a current reference coordinate transformer for transforming the current phase reference value and the current amplitude reference value into a two-phase stationary coordinate system; a current phase calculator for outputting a current phase calculation value; a current phase calculator for outputting a current amplitude calculation value; a current adjuster for generating a current adjustment signal; an output three-phase transformer for transforming the current adjustment signal into a current adjustment signal in a three-phase stationary coordinate system; and a PWM controller for outputting a PWM control signal.

摘要翻译： 新的可再生能源发电系统包括：将直流电压转换为交流电压的逆变器; 用于将逆变器的输出变换为三相/两相静止坐标系的三相/两相变压器; 用于计算逆变器的输出电压的相位和频率的锁相环; 用于产生电流相位基准值的移相器; 用于将当前相位参考值和当前振幅参考值变换为两相静止坐标系的电流参考坐标变换器; 电流相位计算器，用于输出电流相位计算值; 电流相位计算器，用于输出电流幅度计算值; 用于产生电流调节信号的电流调节器; 输出三相变压器，用于在三相静止坐标系中将电流调节信号变换为电流调节信号; 以及用于输出PWM控制信号的PWM控制器。

公开(公告)号：US08611117B2

公开(公告)日：2013-12-17

申请号：US13279000

申请日：2011-10-21

申请人： Kyoung Hwan Kim ,  Young Sang Bae ,  Seong Jin Oh

发明人： Kyoung Hwan Kim ,  Young Sang Bae ,  Seong Jin Oh

IPC分类号： H02M5/42

CPC分类号： H02J3/385 ,  H01L31/02021 ,  H02M7/5395 ,  Y02E10/58

摘要： Provided are a solar energy generation system having an adaptive maximum power point tracking function and a method thereof. The solar energy generation system includes: a minimum maintenance voltage determination unit configured to output a minimum maintenance voltage which enables the inverter to maintain an operation thereof corresponding to a grid voltage of the grid; a maximum power point tracking controller configured to determine a maximum power point tracking voltage at a maximum power point of the photovoltaic module, using the minimum maintenance voltage and an output voltage and output current of the photovoltaic module, and to output a reference voltage to track the maximum power point; a voltage calculator configured to calculate a difference between the reference voltage and the output voltage of the photovoltaic module; and a voltage adjuster configured to generate a reference current value using an output of the voltage calculator.

摘要翻译： 提供一种具有自适应最大功率点跟踪功能的太阳能发电系统及其方法。 太阳能发电系统包括：最小维持电压确定单元，其被配置为输出使逆变器能够维持其对应于电网的电网电压的操作的最小维护电压; 最大功率点跟踪控制器，其被配置为使用所述光伏模块的最小维护电压和输出电压和输出电流来确定所述光伏模块的最大功率点处的最大功率点跟踪电压，并且将参考电压输出到轨道 最大功率点; 电压计算器，被配置为计算所述光伏模块的参考电压和所述输出电压之间的差; 以及电压调节器，被配置为使用所述电压计算器的输出来产生参考电流值。

公开(公告)号：US08681515B2

公开(公告)日：2014-03-25

申请号：US13278992

申请日：2011-10-21

申请人： Young Sang Bae ,  Seong Jin Oh ,  Kyoung Hwan Kim

发明人： Young Sang Bae ,  Seong Jin Oh ,  Kyoung Hwan Kim

IPC分类号： H02M5/45

CPC分类号： H02H3/38 ,  H02H7/122 ,  H02H7/20

摘要： An energy generation system includes an inverter for converting a DC voltage into an AC voltage, a three-phase/two-phase transformer for transforming an output of the inverter into a three-phase/two-phase stationary coordinate system, a phase locked loop for calculating the phase and frequency of an output voltage of the inverter, a phase shifter for generating a current phase reference value, a current reference coordinate transformer for transforming the current phase reference value and the current amplitude reference value into a two-phase stationary coordinate system, a current phase calculator for outputting a current phase calculation value, a current phase calculator for outputting a current amplitude calculation value, a current adjuster for generating a current adjustment signal, an output three-phase transformer for transforming the current adjustment signal into a current adjustment signal in a three-phase stationary coordinate system, and a PWM controller for outputting a PWM control signal.

摘要翻译： 能量发生系统包括用于将DC电压转换为AC电压的逆变器，用于将逆变器的输出变换为三相/两相静止坐标系的三相/两相变压器，锁相环 用于计算逆变器的输出电压的相位和频率，用于产生电流相位基准值的移相器，用于将当前相位基准值和当前振幅参考值变换为两相静止坐标的电流参考坐标变换器 系统，用于输出当前相位计算值的电流相位计算器，用于输出当前振幅计算值的电流相位计算器，用于产生电流调节信号的电流调节器，用于将当前调整信号变换为 三相静止坐标系中的电流调节信号，以及用于输出a的PWM控制器 PWM控制信号。