公开(公告)号：US20060146582A1

公开(公告)日：2006-07-06

申请号：US11312395

申请日：2005-12-21

申请人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

发明人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

IPC分类号： H02H7/10

CPC分类号： H02J3/00 ,  H02J2003/388

摘要： An islanding detection method is proposed to overcome the incapability of detecting islanding operations in accordance with prior arts. A distortion for causing a variation of an AC power system is performed, and an AC power system frequency and a voltage variation are detected as the bases for determining the occurrence of an islanding operation.

摘要翻译： 提出了一种孤岛检测方法，以克服根据现有技术检测孤岛作业的不适用性。 执行用于引起交流电力系统变化的失真，并且检测交流电力系统频率和电压变化作为用于确定孤岛作业的发生的基础。

公开(公告)号：US07466570B2

公开(公告)日：2008-12-16

申请号：US11312395

申请日：2005-12-21

申请人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

发明人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

IPC分类号： H02J1/02

CPC分类号： H02J3/00 ,  H02J2003/388

摘要： An islanding detection method is proposed to overcome the incapability of detecting islanding operations in accordance with prior arts. A distortion for causing a variation of an AC power system is performed, and an AC power system frequency and a voltage variation are detected as the bases for determining the occurrence of an islanding operation.

摘要翻译： 提出了一种孤岛检测方法，以克服根据现有技术检测孤岛作业的不适用性。 执行用于引起交流电力系统变化的失真，并且检测交流电力系统频率和电压变化作为用于确定孤岛作业的发生的基础。

公开(公告)号：US20080116850A1

公开(公告)日：2008-05-22

申请号：US11602201

申请日：2006-11-21

申请人： Yoshihiro Konishi ,  Tain-Syh Luor ,  Yi-Shuo Huang

发明人： Yoshihiro Konishi ,  Tain-Syh Luor ,  Yi-Shuo Huang

IPC分类号： H02J7/00

CPC分类号： H02J7/0016

摘要： This present invention provides a bridge battery voltage equalizer to equalize the voltages of the serially connected battery strings, comprising at least one battery crossing over an energy-transferring circuit. A plurality of the energy-transferring circuits are interconnected in a bridge architecture. Each energy-transferring circuit having four nodes comprises a first semiconductor switch, a first diode, a second semiconductor switch, a second diode, and an inductor. One end of the first element switch is connected to a negative pole of the first diode thereto. A positive pole of the second diode is connected to one end of the second element switch thereto. The inductor is an energy storing element that crosses over between the negative pole of the first diode and the positive pole of the second diode.

摘要翻译： 本发明提供了一种桥式电池电压均衡器，用于均衡串联连接的电池串的电压，包括至少一个电池与能量转移电路交叉。 多个能量传输电路以桥结构相互连接。 具有四个节点的每个能量转移电路包括第一半导体开关，第一二极管，第二半导体开关，第二二极管和电感器。 第一元件开关的一端与第一二极管的负极连接。 第二二极管的正极连接到第二元件开关的一端。 电感器是在第一二极管的负极和第二二极管的正极之间穿过的能量存储元件。

公开(公告)号：US20050146224A1

公开(公告)日：2005-07-07

申请号：US10745619

申请日：2003-12-29

申请人： Yung-Hsiang Liu ,  Tain-Syh Luor ,  Shyh-Jier Huang ,  Jeu-Min Lin

发明人： Yung-Hsiang Liu ,  Tain-Syh Luor ,  Shyh-Jier Huang ,  Jeu-Min Lin

IPC分类号： H02J1/00 ,  H02J3/38

CPC分类号： H02J3/38 ,  H02J2003/388 ,  Y10T307/642

摘要： A method and a system for detecting stand-alone operation of a distributed generating system having a generating source connected in shunt with an independent power distribution system via a first branch breaker are proposed. A voltage or a frequency signal on the independent power distribution system is read. The wavelet transformation is performed on the voltage or frequency signal to form a time versus high-frequency component window and a time versus low-frequency component window for conveniently detecting the perturbation in the time domain of the signal. Next, whether the absolute value of the high-frequency component is greater than a threshold value and whether the duration is longer than another threshold value are determined. If both answers are yes, a stand-alone operation occurs. An alarm signal is immediately generated and sent to the first branch breaker to release the connection between the generating source and the power distribution system.

摘要翻译： 提出了一种用于检测具有通过第一分支断路器与独立配电系统分流连接的发电源的分布式发电系统的独立运行的方法和系统。 读取独立配电系统上的电压或频率信号。 对电压或频率信号进行小波变换，形成时间对高频分量窗口和时间相对低频分量窗口，方便检测信号时域的扰动。 接下来，确定高频分量的绝对值是否大于阈值，并且确定持续时间是否长于另一阈值。 如果两个答案都为是，则会发生独立操作。 立即产生报警信号并将其发送到第一分支断路器以释放发电源和配电系统之间的连接。

公开(公告)号：US07342758B2

公开(公告)日：2008-03-11

申请号：US10745619

申请日：2003-12-29

申请人： Yung-Hsiang Liu ,  Tain-Syh Luor ,  Shyh-Jier Huang ,  Jeu-Min Lin

发明人： Yung-Hsiang Liu ,  Tain-Syh Luor ,  Shyh-Jier Huang ,  Jeu-Min Lin

IPC分类号： H02H3/27 ,  H02H3/46 ,  H02H7/22

CPC分类号： H02J3/38 ,  H02J2003/388 ,  Y10T307/642

摘要： A method and a system for detecting stand-alone operation of a distributed generating system having a generating source connected in shunt with an independent power distribution system via a first branch breaker are proposed. A voltage or a frequency signal on the independent power distribution system is read. The wavelet transformation is performed on the voltage or frequency signal to form a time versus high-frequency component window and a time versus low-frequency component window for conveniently detecting the perturbation in the time domain of the signal. Next, whether the absolute value of the high-frequency component is greater than a threshold value and whether the duration is longer than another threshold value are determined. If both answers are yes, a stand-alone operation occurs. An alarm signal is immediately generated and sent to the first branch breaker to release the connection between the generating source and the power distribution system.

摘要翻译： 提出了一种用于检测具有通过第一分支断路器与独立配电系统分流连接的发电源的分布式发电系统的独立运行的方法和系统。 读取独立配电系统上的电压或频率信号。 对电压或频率信号进行小波变换，形成时间对高频分量窗口和时间相对低频分量窗口，方便检测信号时域的扰动。 接下来，确定高频分量的绝对值是否大于阈值，并且确定持续时间是否长于另一阈值。 如果两个答案都为是，则会发生独立操作。 立即产生报警信号并将其发送到第一分支断路器以释放发电源和配电系统之间的连接。

公开(公告)号：US07275002B2

公开(公告)日：2007-09-25

申请号：US11435750

申请日：2006-05-18

申请人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

发明人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

IPC分类号： G01R21/00

CPC分类号： H02J3/38 ,  H02J2003/388

摘要： An islanding detection and protection method of a parallel-type power converter is proposed, which performs perturbation to a power system to detect the frequency of the system voltage and the variation of the magnitude of the negative-sequence voltage as the basis for deciding the occurrence of an islanding operation. When the system operates normally, the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage won't be affected by the perturbation. On the other hand, if an islanding operation occurs, this perturbation will cause an apparent drift of the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage. Through detection of this apparent drift, the perturbation can be amplified by means of positive feedback to quickly detect the islanding operation phenomenon and trigger the protection mechanism.

摘要翻译： 提出了并联型功率转换器的孤岛检测和保护方法，其对电力系统进行扰动，以检测系统电压的频率和负序电压的幅度的变化，作为决定发生的基础 的孤岛作战。 当系统正常运行时，系统电压的频率或相位和幅度以及负序电压的幅度不受扰动影响。 另一方面，如果发生孤岛化操作，该扰动将导致系统电压的频率或相位和幅度以及负序电压的大小的明显漂移。 通过检测这种明显的漂移，可以通过正反馈来放大扰动，以快速检测孤岛作用现象并触发保护机制。

公开(公告)号：US20050139258A1

公开(公告)日：2005-06-30

申请号：US10745620

申请日：2003-12-29

申请人： Yung-Hsiang Liu ,  Guo-Shin Chu ,  Yung-Fu Huang ,  Tain-Syh Luor

发明人： Yung-Hsiang Liu ,  Guo-Shin Chu ,  Yung-Fu Huang ,  Tain-Syh Luor

IPC分类号： H01L31/00 ,  H02J7/35 ,  H02M3/335

CPC分类号： H02J7/35

摘要： A solar cell array control device has a plurality of solar cell modules, a bidirectional DC converter, at least a voltage sensor and a control unit. The bidirectional DC converter corresponds to and is electrically connected to the solar cell modules to connect these solar cell modules in series to form a solar cell array. The voltage sensor is electrically connected to the solar cell modules, and can generate an abnormal voltage when detecting that one of the solar cell modules is abnormal. The control unit is electrically connected to the voltage sensor and the bidirectional DC converter, and outputs a pulse width modulation signal by detecting the abnormal voltage to control the bidirectional DC converter for compensating the conversion current and thus enhancing the output power of this solar cell module.

摘要翻译： 太阳能电池阵列控制装置具有多个太阳能电池模块，双向DC转换器，至少电压传感器和控制单元。 双向DC转换器对应于并且电连接到太阳能电池模块以将这些太阳能电池模块串联连接以形成太阳能电池阵列。 电压传感器电连接到太阳能电池模块，并且当检测到太阳能电池模块中的一个异常时可以产生异常电压。 控制单元电连接到电压传感器和双向DC转换器，并且通过检测异常电压来输出脉宽调制信号，以控制双向DC转换器来补偿转换电流，从而提高该太阳能电池模块的输出功率 。

公开(公告)号：US07612530B2

公开(公告)日：2009-11-03

申请号：US11602201

申请日：2006-11-21

申请人： Yoshihiro Konishi ,  Tain-Syh Luor ,  Yi-Shuo Huang

发明人： Yoshihiro Konishi ,  Tain-Syh Luor ,  Yi-Shuo Huang

IPC分类号： H02J7/00

CPC分类号： H02J7/0016

摘要： This present invention provides a bridge battery voltage equalizer to equalize the voltages of the serially connected battery strings, comprising at least one battery crossing over an energy-transferring circuit. A plurality of the energy-transferring circuits are interconnected in a bridge architecture. Each energy-transferring circuit having four nodes comprises a first semiconductor switch, a first diode, a second semiconductor switch, a second diode, and an inductor. One end of the first element switch is connected to a negative pole of the first diode thereto. A positive pole of the second diode is connected to one end of the second element switch thereto. The inductor is an energy storing element that crosses over between the negative pole of the first diode and the positive pole of the second diode.

摘要翻译： 本发明提供了一种桥式电池电压均衡器，用于均衡串联连接的电池串的电压，包括至少一个电池与能量转移电路交叉。 多个能量传输电路以桥结构相互连接。 具有四个节点的每个能量转移电路包括第一半导体开关，第一二极管，第二半导体开关，第二二极管和电感器。 第一元件开关的一端连接到第一二极管的负极。 第二二极管的正极连接到第二元件开关的一端。 电感器是在第一二极管的负极和第二二极管的正极之间穿过的能量存储元件。

公开(公告)号：US07440300B2

公开(公告)日：2008-10-21

申请号：US11319653

申请日：2005-12-29

申请人： Yoshihiro Konishi ,  Tain-Syh Luor ,  Yung-Fu Huang

发明人： Yoshihiro Konishi ,  Tain-Syh Luor ,  Yung-Fu Huang

IPC分类号： H02M7/5387 ,  G05F1/24

CPC分类号： H02J3/38 ,  H02M7/5387

摘要： A transformerless power conversion circuit is interconnected with an electric grid and converts an input DC power provided by a power generator into an AC power and feeding the AC power into the grid. The power conversion circuit includes a buck-boost converter converting the input DC power into two sets of DC power levels; and at least one half-bridge inverter converting the two sets of DC power levels into the AC power for feeding into the grid. The isolating transformer can be eliminated and the common ground problem for DC side and AC side is also solved. The power conversion circuit has significant improvement for device size, manufacture cost and conversion efficiency.

摘要翻译： 无变压器功率转换电路与电网互连，将由发电机提供的输入直流电力转换为交流电，并将交流电馈送到电网中。 电力转换电路包括将输入直流电力转换为两组直流功率电平的降压 - 升压转换器; 以及至少一个半桥逆变器将两组DC功率电平转换成用于馈送到电网的AC电力。 可以消除隔离变压器，也解决了直流侧和交流侧的共同问题。 功率转换电路对器件尺寸，制造成本和转换效率有显着改善。

公开(公告)号：US20070143044A1

公开(公告)日：2007-06-21

申请号：US11435750

申请日：2006-05-18

申请人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

发明人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

IPC分类号： G06F19/00

CPC分类号： H02J3/38 ,  H02J2003/388

摘要： An islanding detection and protection method of a parallel-type power converter is proposed, which performs perturbation to a power system to detect the frequency of the system voltage and the variation of the magnitude of the negative-sequence voltage as the basis for deciding the occurrence of an islanding operation. When the system operates normally, the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage won't be affected by the perturbation. On the other hand, if an islanding operation occurs, this perturbation will cause an apparent drift of the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage. Through detection of this apparent drift, the perturbation can be amplified by means of positive feedback to quickly detect the islanding operation phenomenon and trigger the protection mechanism.