PHOTOVOLTAIC POWER SYSTEM INVERTER DETECTION
    1.
    发明申请
    PHOTOVOLTAIC POWER SYSTEM INVERTER DETECTION 有权
    光伏电力系统逆变器检测

    公开(公告)号:US20160329715A1

    公开(公告)日:2016-11-10

    申请号:US14707119

    申请日:2015-05-08

    IPC分类号: H02J3/38 H02M7/42 G01R31/02

    摘要: Photovoltaic power system inverter detection apparatus and methods are disclosed. Electrical continuity between an inverter in a PV power system and a PV panel disconnect switch, which switchably couples one or more DC PV panels to the PV power system, is tested while the PV panel disconnect switch is open. A state of the electrical continuity is determined based on measurements of an electrical parameter after the test signal is applied. The PV panel disconnect switch is maintained open on determining no electrical continuity, and closed on determining that there is electrical continuity between the PV panel disconnect switch and the inverter. A shutdown device that implements inverter detection may be located and/or adapted to meet safety conditions, by being located less than 10 feet from the PV panel array and/or adapted to limit a test signal to a maximum of 30V and 240VA.

    摘要翻译: 公开了光伏电力系统逆变器检测装置和方法。 PV光伏电源系统中的逆变器与PV面板断开开关之间的电气连续性在PV面板断开开关断开时进行测试,PV开关可以将一个或多个DC PV面板切换到PV电源系统。 基于测试信号施加后的电参数的测量来确定电连续性的状态。 PV面板断开开关在确定无电气连续性时保持打开,并且在确定PV面板断开开关和逆变器之间存在电气连续性时关闭。 实现逆变器检测的关闭装置可以通过位于距离PV面板阵列小于10英尺的位置和/或适于将测试信号限制在最大30V和240VA的范围内来定位和/或适于满足安全条件。