公开(公告)号：US20120119755A1

公开(公告)日：2012-05-17

申请号：US13379515

申请日：2010-05-18

申请人： Takafumi Ishii ,  Masanobu Yoshidomi

发明人： Takafumi Ishii ,  Masanobu Yoshidomi

IPC分类号： G01R31/02

CPC分类号： G01R27/025 ,  G01R27/18 ,  G01R31/025 ,  G01R31/14

摘要： An object is to detect an insulation failure of a DC circuit with high sensitivity and in safety by means of a simple detection circuit. An insulation resistance measurement device of this invention is a device for measuring an insulation resistance to ground of a DC source circuit and is provided with connection terminals for connections to a positive electrode and a negative electrode of a series power supply, switch elements connected between the connection terminals and the ground potential and configured to switch connections between the connection terminals and the ground potential, resistive elements connected through the switch elements between the connection terminals, respectively, and the ground potential, and a voltage detection unit for detecting voltage drops in the resistive elements.

摘要翻译： 目的是通过简单的检测电路来检测具有高灵敏度和安全性的直流电路的绝缘故障。 本发明的绝缘电阻测量装置是用于测量直流源电路的接地绝缘电阻的装置，并且设置有用于连接到串联电源的正极和负极的连接端子，连接在串联电源 连接端子和地电位，并且被配置为切换连接端子与接地电位之间的连接，分别通过连接端子之间的开关元件连接的电阻元件与接地电位，以及电压检测单元，用于检测 电阻元件。

公开(公告)号：US09176201B2

公开(公告)日：2015-11-03

申请号：US14236462

申请日：2012-07-31

申请人： Takafumi Ishii ,  Taeko Kamegawa ,  Masanobu Yoshidomi

发明人： Takafumi Ishii ,  Taeko Kamegawa ,  Masanobu Yoshidomi

IPC分类号： G01R31/14 ,  G01R31/40 ,  H02H3/16 ,  H02M1/32 ,  G01R31/02 ,  H01L31/02 ,  H02S50/10

CPC分类号： G01R31/40 ,  G01R31/025 ,  H01L31/02021 ,  H02H3/16 ,  H02M1/32 ,  H02S50/00 ,  H02S50/10 ,  Y02E10/56

摘要： In a ground fault detection device, two photovoltaic strings are disconnected from a photovoltaic power generation system, measurement for one photovoltaic string is performed by a measuring instrument, and in parallel therewith, the other photovoltaic string before measurement is charged/discharged by a charging/discharging unit by executing various functions of the calculation control unit. In other words, charging/discharging of the photovoltaic string is performed in advance at the same timing as the measurement of the photovoltaic string so that the measurement can be performed immediately after the photovoltaic string is connected to the measuring instrument in a subsequent step.

摘要翻译： 在接地故障检测装置中，两个光伏电源线与光电发电系统断开连接，一个光伏电池串的测量由一个测量仪器执行，与此同时，测量之前的另一个光伏电池由充电/ 通过执行计算控制单元的各种功能来执行排放单元。 换句话说，光伏串的充电/放电在与光伏电池的测量相同的时刻预先执行，使得在后续步骤中光电耦合到测量仪器之后，可以立即进行测量。

公开(公告)号：US20140253138A1

公开(公告)日：2014-09-11

申请号：US14236462

申请日：2012-07-31

申请人： Takafumi Ishii ,  Taeko Kamegawa ,  Masanobu Yoshidomi

发明人： Takafumi Ishii ,  Taeko Kamegawa ,  Masanobu Yoshidomi

IPC分类号： G01R31/40 ,  G01R31/02

CPC分类号： G01R31/40 ,  G01R31/025 ,  H01L31/02021 ,  H02H3/16 ,  H02M1/32 ,  H02S50/00 ,  H02S50/10 ,  Y02E10/56

摘要： In a ground fault detection device, two photovoltaic strings are disconnected from a photovoltaic power generation system, measurement for one photovoltaic string is performed by a measuring instrument, and in parallel therewith, the other photovoltaic string before measurement is charged/discharged by a charging/discharging unit by executing various functions of the calculation control unit. In other words, charging/discharging of the photovoltaic string is performed in advance at the same timing as the measurement of the photovoltaic string so that the measurement can be performed immediately after the photovoltaic string is connected to the measuring instrument in a subsequent step.

摘要翻译： 在接地故障检测装置中，两个光伏电源线与光电发电系统断开连接，一个光伏电池串的测量由一个测量仪器执行，与此同时，测量之前的另一个光伏电池由充电/ 通过执行计算控制单元的各种功能来执行排放单元。 换句话说，光伏串的充电/放电在与光伏电池的测量相同的时刻预先执行，使得在后续步骤中光电耦合到测量仪器之后，可以立即进行测量。

公开(公告)号：US20130285670A1

公开(公告)日：2013-10-31

申请号：US13989688

申请日：2011-11-25

申请人： Masanobu Yoshidomi ,  Takafumi Ishii

发明人： Masanobu Yoshidomi ,  Takafumi Ishii

IPC分类号： G01R31/26

CPC分类号： H02S50/10 ,  G01R31/025 ,  H01L31/02021 ,  Y02E10/50

摘要： A ground fault detection device detects a ground fault within a photovoltaic array in a solar energy generator system including a photovoltaic string composed of a plurality of photovoltaic modules connected in series, the photovoltaic array composed of a plurality of the photovoltaic strings connected in parallel, and a load device consuming or converting electric power. The ground fault detection device includes a switching section which parallels off the photovoltaic array or the photovoltaic string by electrically disconnecting the photovoltaic array or the photovoltaic string from the solar energy generator system and a detection section which detects a ground fault in the photovoltaic array or the photovoltaic string while the photovoltaic array or the photovoltaic string is paralleled off by the switching section.

摘要翻译： 接地故障检测装置检测太阳能发电系统内的光伏阵列内的接地故障，该太阳能发电系统包括由串联连接的多个光伏组件组成的光伏串联，由多个并联连接的光伏电池组成的光伏阵列，以及 消耗或转换电力的负载装置。 接地故障检测装置包括通过将光伏阵列或光伏串与太阳能发电系统电气断开而与光伏阵列或光伏串并联的切换部分和检测光伏阵列中的接地故障的检测部分 而光伏阵列或光伏串由开关部分并联。

公开(公告)号：US08860430B2

公开(公告)日：2014-10-14

申请号：US13379515

申请日：2010-05-18

申请人： Takafumi Ishii ,  Masanobu Yoshidomi

发明人： Takafumi Ishii ,  Masanobu Yoshidomi

IPC分类号： G01R31/02 ,  G01R27/18 ,  G01R27/02 ,  G01R31/14

CPC分类号： G01R27/025 ,  G01R27/18 ,  G01R31/025 ,  G01R31/14

摘要： An object is to detect an insulation failure of a DC circuit with high sensitivity and in safety by means of a simple detection circuit. An insulation resistance measurement device of this invention is a device for measuring an insulation resistance to ground of a DC source circuit and is provided with connection terminals for connections to a positive electrode and a negative electrode of a series power supply, switch elements connected between the connection terminals and the ground potential and configured to switch connections between the connection terminals and the ground potential, resistive elements connected through the switch elements between the connection terminals respectively, and the ground potential, and a voltage detection unit for detecting voltage drops in the resistive elements.

摘要翻译： 目的是通过简单的检测电路来检测具有高灵敏度和安全性的直流电路的绝缘故障。 本发明的绝缘电阻测量装置是用于测量直流源电路的接地绝缘电阻的装置，并且设置有用于连接到串联电源的正极和负极的连接端子，连接在串联电源 连接端子和地电位，并且被配置为切换连接端子与接地电位之间的连接，分别通过连接端子之间的开关元件连接的电阻元件和接地电位;以及用于检测电阻中的电压降的电压检测单元 元素。

公开(公告)号：US20140225444A1

公开(公告)日：2014-08-14

申请号：US14236423

申请日：2012-07-13

申请人： Masanobu Yoshidomi ,  Takafumi Ishii

发明人： Masanobu Yoshidomi ,  Takafumi Ishii

IPC分类号： G01R31/02 ,  H02J1/00 ,  G01R31/40

CPC分类号： G01R31/025 ,  H01L31/02021 ,  H02H3/16 ,  H02J1/00 ,  H02S50/00 ,  H02S50/10 ,  Y02E10/50 ,  Y10T307/691

摘要： In a ground fault detection device, two photovoltaic strings are disconnected from a photovoltaic power generation system, a measurement of a first voltage value is performed for the one photovoltaic string by a first measurement unit, and in parallel therewith, a measurement of a second voltage value is performed for the other photovoltaic string by the second measurement unit by executing various functions of a calculation control unit. Thus, a capacitance relative to a ground of a measurement target is reduced. Further, the photovoltaic string is electrically separated from a load device at the time of such a measurement. Further, separate measurements are performed on the one and other photovoltaic strings in the disconnected state, and the first and second voltage values are measured in parallel.

摘要翻译： 在接地故障检测装置中，从光伏发电系统断开两个光伏电池串，通过第一测量单元对一个光伏电池串执行第一电压值的测量，并且与之并行地测量第二电压 通过执行计算控制单元的各种功能，由第二测量单元为另一光伏串执行值。 因此，相对于测量对象的接地的电容减小。 此外，在这种测量时，光伏串与负载装置电气分离。 此外，在断开状态下对一个和其它光伏电池串进行单独的测量，并且测量第一和第二电压值。