基本信息:
- 专利标题： 一种防止机组解列甩负荷OPC功能重复动作的方法
- 专利标题（英）：Method for preventing repetition of unit disconnection load shedding OPC function
- 申请号：CN201710565615.2 申请日：2017-07-12
- 公开(公告)号：CN107134797A 公开(公告)日：2017-09-05
- 发明人： 李前敏 , 柏毅辉 , 张锐锋 , 文贤馗 , 何洪流 , 李忠 , 石磐 , 陈宇 , 安波 , 黄如云 , 吴鹏 , 郑友卓
- 申请人： 贵州电网有限责任公司电力科学研究院
- 申请人地址： 贵州省贵阳市南明区解放路32号
- 专利权人： 贵州电网有限责任公司电力科学研究院
- 当前专利权人： 贵州电网有限责任公司电力科学研究院
- 当前专利权人地址： 贵州省贵阳市南明区解放路32号
- 代理机构： 贵阳中新专利商标事务所
- 代理人： 商小川
- 主分类号： H02J3/24
- IPC分类号： H02J3/24
The invention discloses a method for preventing repetition of a unit disconnection load shedding OPC function. The method comprises the steps that firstly, grid connection and disconnection signals of a unit are judged, wherein a two-out-of-three mode or a switch-on and switch-off signal comprehensive judgment mode is used for judging the grid connection and disconnection signals of the unit; secondly, unit disconnection load shedding OPC function soft logic is set as a pulse signal which only acts once; thirdly, by means of a time relay, a unit disconnection load shedding OPC function hard loop is set as a loop which only acts once. The technical problems that a unit grid connection signal is lost mistakenly, a disconnection signal is generated when the unit is not actually disconnected, and the OPC function repeats and causes unit power oscillation and power grid low-frequency oscillation are solved.
IPC结构图谱:
| H | 电学 |
| --H02 | 发电、变电或配电 |
| ----H02J | 供电或配电的电路装置或系统；电能存储系统 |
| ------H02J3/00 | 交流干线或交流配电网络的电路装置 |
| --------H02J3/24 | .在网络中防止或减少功率振荡的装置 |