基本信息:
- 专利标题： 海上风电场直流输电系统直流短路故障穿越方法和系统
- 专利标题（英）：Offshore wind farm direct current power transmission system direct current short circuit fault ride-through method and system thereof
- 申请号：CN201610638808.1 申请日：2016-08-05
- 公开(公告)号：CN106099968A 公开(公告)日：2016-11-09
- 发明人： 李道洋 , 吴金龙 , 王先为 , 张军 , 行登江 , 杨美娟 , 张浩 , 姚为正
- 申请人： 西安许继电力电子技术有限公司 , 许继电气股份有限公司 , 许继集团有限公司 , 国家电网公司
- 申请人地址： 陕西省西安市高新六路38号西安腾飞创新中心B座1层103室
- 专利权人： 西安许继电力电子技术有限公司,许继电气股份有限公司,许继集团有限公司,国家电网公司
- 当前专利权人： 西安许继电力电子技术有限公司,许继电气股份有限公司,许继集团有限公司,国家电网公司
- 当前专利权人地址： 陕西省西安市高新六路38号西安腾飞创新中心B座1层103室
- 代理机构： 郑州睿信知识产权代理有限公司
- 代理人： 韩天宝
- 主分类号： H02J3/36
- IPC分类号： H02J3/36 ; H02J3/38
The invention relates to an o offshore wind farm direct current power transmission system direct current short circuit fault ride-through method and a system thereof. When a short circuit fault of a direct current bus occurs, a current difference between the two ends of the direct current bus is detected, and is compared with a set current value. When the current difference between the two ends of the direct current bus is smaller than the set current value, direct voltage set values of two converter stations are adjusted according to the current difference between the two ends of the direct current bus. When the current difference between the two ends of the direct current bus is greater than or equal to the set current value, the direct voltage set values of the two converter stations are zero. The direct voltages of the two converter stations are correspondingly controlled according to different fault degrees, and therefore the fault ride-through method is suitable for occasions where an offshore wind farm is connected a power grid by flexible direct current.
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 |
| --------H02J3/36 | .通过高压直流链路在交流网络之间传递电力的装置 |