基本信息:
- 专利标题： 变量相关情形下风电和光伏接入对配电网电压影响分析方法
- 专利标题（英）：Analysis method of influences of wind power and photovoltaic access on distribution network voltage under variable correlated conditions
- 申请号：CN201710631434.5 申请日：2017-07-28
- 公开(公告)号：CN107482620A 公开(公告)日：2017-12-15
- 发明人： 吴奎华 , 李雪亮 , 孙伟 , 冯亮 , 杨波 , 梁荣 , 李昭 , 李凯 , 崔灿 , 杨扬 , 张晓磊 , 杜鹏 , 杨慎全 , 张雯 , 庞怡君
- 申请人： 国网山东省电力公司经济技术研究院 , 国网山东省电力公司
- 申请人地址： 山东省济南市槐荫区纬十路111号
- 专利权人： 国网山东省电力公司经济技术研究院,国网山东省电力公司
- 当前专利权人： 国网山东省电力公司经济技术研究院,国网山东省电力公司
- 当前专利权人地址： 山东省济南市槐荫区纬十路111号
- 代理机构： 北京汇信合知识产权代理有限公司
- 代理人： 袁辉志
- 主分类号： H02J3/00
- IPC分类号： H02J3/00 ; H02J3/06 ; H02J3/38
The invention provides a research method of influences of the wind power and photovoltaic access on a distribution network under variable correlated conditions, and the influences of three kinds of random variables including wind speed, light intensity and load on the distribution network voltage are analyzed at the same time considering the correlation thereof. Firstly, a description method of the wind power, photovoltaic model and load is established, and corresponding correlated sample data are generated; then according to the correlation among the wind speed, light intensity and load, the Nataf transformation is used combined with the elementary transformation (ET) to transform the data to an independent standard normal space, further, a probabilistic load flow model capable of solution by a 2m+1-point estimation method is established, and the probability load flow problem of the correlated input variables is solved. Through the example analysis, the validity of the 2m+1-point estimation method is verified, and the voltage levels of different nodes at different time intervals and the influences on the voltage under different wind power and photovoltaic permeabilities are analyzed.
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 |