公开(公告)号：US20130321021A1

公开(公告)日：2013-12-05

申请号：US13897858

申请日：2013-05-20

Applicant: ABB Oy

Inventor： Jesse KOKKONEN ,  Janne Hellberg ,  Jari Uusimäki

IPC: G01R31/26

CPC classification number: G01R31/2607 ,  H02J3/383 ,  H02M1/36 ,  H02S50/10 ,  Y02E10/563

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140145505A1

公开(公告)日：2014-05-29

申请号：US14092189

申请日：2013-11-27

Applicant: ABB OY

Inventor： Jesse KOKKONEN

IPC: H02J3/00

CPC classification number: H02J3/00 ,  H02M1/36 ,  H02M7/48 ,  Y02E10/56 ,  Y10T307/549

Abstract: 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.

Abstract translation: 公开了一种用于操作逆变器的方法，以及用于与具有至少一个光伏面板的光伏阵列耦合的逆变器。 逆变器可以配置为：将光伏阵列的输出极彼此短路连接; 在彼此短路连接后测量由光电阵列通过输出极提供的电流; 并且如果测量的电流超过预定阈值，则开始由光伏阵列提供的功率的DC到AC的转换。