
基本信息:
- 专利标题: 实现并联四端直流输电系统电流不平衡的控制方法和系统
- 专利标题(英):Control method and system for realizing current unbalance of parallel four-terminal direct current transmission system
- 申请号:CN201610331647.1 申请日:2016-05-18
- 公开(公告)号:CN105870958A 公开(公告)日:2016-08-17
- 发明人: 李乾 , 曹森 , 马为民 , 史林 , 吴彦维 , 王亚涛 , 蒲莹 , 孙世杰 , 周晓风 , 孙巍峰 , 尹健 , 宋延涛 , 岳笑歌
- 申请人: 国家电网公司 , 许继电气股份有限公司 , 许继集团有限公司 , 国网北京经济技术研究院 , 国网浙江省电力公司
- 申请人地址: 北京市西城区西长安街86号
- 专利权人: 国家电网公司,许继电气股份有限公司,许继集团有限公司,国网北京经济技术研究院,国网浙江省电力公司
- 当前专利权人: 国家电网公司,许继电气股份有限公司,许继集团有限公司,国网北京经济技术研究院,国网浙江省电力公司
- 当前专利权人地址: 北京市西城区西长安街86号
- 代理机构: 郑州睿信知识产权代理有限公司
- 代理人: 陈浩
- 主分类号: H02J3/36
- IPC分类号: H02J3/36 ; H02M7/68
The invention relates to a control method and system for realizing current unbalance of a parallel four-terminal direct current transmission system. Converters on an inversion side are selected when controlled, one is a main converter, and the other is an auxiliary converter; for the main converter, a corresponding trigger pulse is generated according to a superposition value of a corresponding voltage error signal and an attached unbalance signal to perform trigger control on the main converter; for the auxiliary converter, a corresponding trigger pulse is generated according to a difference of a corresponding voltage error signal and the attached unbalance signal to perform trigger control on the auxiliary converter. The converters on the inversion side can be controlled effectively with the control method, unbalanced operation of the current of the parallel four-terminal direct current transmission system can be realized, free distribution of electric energy of the direct current transmission system is realized, and the electric energy transmission efficiency is guaranteed.
公开/授权文献:
- CN105870958B 实现并联四端直流输电系统电流不平衡的控制方法和系统 公开/授权日:2020-09-22
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 |