基本信息:
- 专利标题： 海上风电直流送出系统故障控制方法及装置
- 专利标题（英）：Fault control method and device of offshore wind power DC sending-out system
- 申请号：CN201711101698.6 申请日：2017-11-10
- 公开(公告)号：CN107863780A 公开(公告)日：2018-03-30
- 发明人： 李志强 , 张利军 , 钟宇军 , 贾科 , 兰洲 , 孙轶恺 , 张静 , 徐晨博 , 张哲任 , 陈蕊 , 张波 , 袁翔 , 范明霞
- 申请人： 国网浙江省电力公司经济技术研究院 , 华北电力大学 , 国家电网公司
- 申请人地址： 浙江省杭州市上城区南复路1号水澄大厦
- 专利权人： 国网浙江省电力公司经济技术研究院,华北电力大学,国家电网公司
- 当前专利权人： 国网浙江省电力公司经济技术研究院,华北电力大学,国家电网公司
- 当前专利权人地址： 浙江省杭州市上城区南复路1号水澄大厦
- 代理机构： 浙江翔隆专利事务所
- 代理人： 张建青
- 主分类号： H02J3/36
- IPC分类号： H02J3/36 ; H02J3/38
The invention discloses a fault control method and device of an offshore wind power DC sending-out system. A system control strategy under an existing fault only can be used for performing fault control under a certain wind power plant voltage and frequency range, and a DC voltage cannot be enabled to be limited at a value near to the highest limit value. According to the fault control method, a steady-state current expression of a new energy power supply under different control targets is derived with regard to a part of power conversion power supply employing a positive- and negative-sequence dual-synchronous rotation reference frame current controller; on the basis, a power transmission system control strategy is designed due to particularity of offshore new energy equipment; and surplus power on a DC circuit is consumed by low-tunneling suppression resistor, DC voltage rising is prevented, damage of overvoltage to a flexible DC power transmission line is prevented, stable running of the system is maintained, and the running safety and reliability of the offshore wind power DC sending-out system are improved.
公开/授权文献:
- CN107863780B 海上风电直流送出系统故障控制方法及装置 公开/授权日：2020-05-12
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 |