基本信息:
- 专利标题： 一种新能源并网系统振荡耦合频率的确定方法和装置
- 专利标题（英）：Oscillation coupling frequency determination method and device of new energy grid-connected system
- 申请号：CN201910369811.1 申请日：2019-05-06
- 公开(公告)号：CN110021962A 公开(公告)日：2019-07-16
- 发明人： 不公告发明人
- 申请人： 长沙而道新能源科技有限公司
- 申请人地址： 湖南省长沙市长沙高新开发区尖山路39号长沙中电软件园一期9栋7楼A7130室
- 专利权人： 长沙而道新能源科技有限公司
- 当前专利权人： 河北新天科创新能源技术有限公司,河北建投新能源有限公司
- 当前专利权人地址： 湖南省长沙市长沙高新开发区尖山路39号长沙中电软件园一期9栋7楼A7130室
- 主分类号： H02J3/38
- IPC分类号： H02J3/38 ; H02J3/24
The invention relates to an oscillation coupling frequency determination method and device of a new energy grid-connected system. The oscillation coupling frequency determination method comprises thesteps of calculating a working frequency of each grid-connected power generator under current time according to a formula E
=Asin(2Pi f
t+Alpha
), wherein f
is an oscillation frequency of a grid-connected power generator; calculating a working frequency of the system under the current time according to a formula E<0>=Asin(2Pi f<0>t+Alpha<0>) with regard to a corresponding system voltage on each real-time position; and calculating the oscillation coupling frequency of the grid-connected system according to a formula f
'=//f
-f<0>/-f<0>/, testing electromotive force of each power generator in the grid-connected system and a system final output voltage, calculating a real-time working frequency of each power generator and a working frequency of the final output voltage accordingto the electromotive force and the voltage, and calculating the oscillation coupling frequency according to the real-time working frequency of each power generator and the working frequency of the output voltage so that the oscillation coupling frequency is more accurate.
公开/授权文献:
- CN110021962B 一种新能源并网系统振荡耦合频率的确定方法和装置 公开/授权日：2020-10-27
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 |
| --------H02J3/38 | .由两个或两个以上发电机、变换器或变压器对1个网络并联馈电的装置 |