公开(公告)号：US09728959B2

公开(公告)日：2017-08-08

申请号：US14092189

申请日：2013-11-27

申请人： ABB OY

发明人： Jesse Kokkonen

IPC分类号： H02J3/00 ,  H02M1/36 ,  H02M7/48

CPC分类号： H02J3/00 ,  H02M1/36 ,  H02M7/48 ,  Y02E10/56 ,  Y10T307/549

摘要： A method for operating an inverter, and an inverter for coupling with a photovoltaic array having at least one photovoltaic panel are disclosed. The inverter can be configured: to connect output poles of the photovoltaic array in short circuit with each other; to measure a current supplied by the photovoltaic array through the output poles after they have been connected in short circuit with each other; and to start a DC-to-AC conversion of power supplied by the photovoltaic array if the measured current exceeds a predetermined threshold.

公开(公告)号：US09063194B2

公开(公告)日：2015-06-23

申请号：US13897858

申请日：2013-05-20

申请人： ABB Oy

发明人： Jesse Kokkonen ,  Janne Hellberg ,  Jari Uusimäki

IPC分类号： G01R31/26 ,  H02M1/36 ,  H02J3/38 ,  H02S50/10

CPC分类号： G01R31/2607 ,  H02J3/383 ,  H02M1/36 ,  H02S50/10 ,  Y02E10/563

摘要： A method and arrangement of determining starting conditions of a solar converter in a photovoltaic system. The photovoltaic system includes a photovoltaic panel system having one or more photovoltaic panels. The method includes determining an open circuit voltage of the photovoltaic panel system, and determining beforehand limit values for the starting conditions, where the limit values include an open circuit voltage value and a temperature value, with which values the solar converter can be started. The method also includes determining beforehand the temperature dependency of the open circuit voltage of the panel system, determining a temperature of the panel system, and setting a criterion for starting the converter. The criterion includes determining, by using the determined temperature dependency and the determined limit values for the starting conditions, whether the determined temperature and the determined open circuit voltage enable the starting of the converter.

摘要翻译： 一种在光伏系统中确定太阳能转换器起动条件的方法和装置。 光伏系统包括具有一个或多个光伏面板的光伏面板系统。 该方法包括确定光伏面板系统的开路电压，并且确定起始条件的预先极限值，其中极限值包括开路电压值和温度值，太阳能转换器可以通过该开路电压值和温度值开始。 该方法还包括事先确定面板系统的开路电压的温度依赖性，确定面板系统的温度，以及设定启动转换器的标准。 该标准包括通过使用所确定的温度依赖性和确定的启动条件的限制值来确定所确定的温度和所确定的开路电压是否能够启动转换器。