基本信息:
- 专利标题： 一种光伏并网逆变器接触漏电流检测方法
- 专利标题（英）：Method for detecting touch current leakage of photovoltaic grid-connected inverter
- 申请号：CN201610372925.8 申请日：2016-05-31
- 公开(公告)号：CN105891583A 公开(公告)日：2016-08-24
- 发明人： 李松涛 , 任芝 , 张晓宏 , 黄敏 , 鲍迎娣 , 王亮
- 申请人： 华北电力大学(保定) , 江苏固德威电源科技股份有限公司
- 申请人地址： 河北省保定市永华北大街619号
- 专利权人： 华北电力大学(保定),江苏固德威电源科技股份有限公司
- 当前专利权人： 华北电力大学(保定),固德威技术股份有限公司
- 当前专利权人地址： 河北省保定市永华北大街619号
- 主分类号： G01R19/00
- IPC分类号： G01R19/00 ; G01R31/02
A method for detecting touch current leakage of a photovoltaic grid-connected inverter is characterized in that two inverters which are at the same power level share one contact current detecting device; the difference of trigger pulse of the two inverters is equal to half cycle; if the two inverters are the same, the ground parasitic capacitance is completely the same, and thus the AC high-frequency leakage current detected from a common ground wire during the normal work is nearly zero; if the two inverters are not completely the same, the leakage current can be greatly reduced; in case of electric shock under such condition, the proportion of the touch leakage current in the whole leakage current can be greatly increased. Therefore, a small-range current detecting device can be used for detecting the touch leakage current, and as a result, the purpose of accurate measuring can be achieved.
公开/授权文献:
- CN105891583B 一种光伏并网逆变器接触漏电流检测方法 公开/授权日：2019-03-29
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01R | 测量电变量；测量磁变量（通过转换成电变量对任何种类的物理变量进行测量参见G01类名下的 |
| ------G01R19/00 | 用于测量电流或电压或者用于指示其存在或符号的装置 |