![一种基于换流站电气信号的次同步振荡监测分析方法](/CN/2015/1/40/images/201510202639.jpg)
基本信息:
- 专利标题: 一种基于换流站电气信号的次同步振荡监测分析方法
- 专利标题(英):Convertor station electrical signals-based subsynchronous oscillation monitoring analysis method
- 申请号:CN201510202639.2 申请日:2015-04-24
- 公开(公告)号:CN104821579A 公开(公告)日:2015-08-05
- 发明人: 周佩朋 , 宋瑞华 , 杜宁 , 班连庚 , 马世英 , 项祖涛 , 陈珍珍 , 王晓彤 , 郑彬 , 韩彬 , 张媛媛 , 韩亚楠 , 杨大业 , 马其燕
- 申请人: 中国电力科学研究院 , 国家电网公司
- 申请人地址: 北京市海淀区清河小营东路15号
- 专利权人: 中国电力科学研究院,国家电网公司
- 当前专利权人: 中国电力科学研究院,国家电网公司,国网江苏省电力公司
- 当前专利权人地址: 北京市海淀区清河小营东路15号
- 代理机构: 北京安博达知识产权代理有限公司
- 代理人: 徐国文
- 主分类号: H02J3/00
- IPC分类号: H02J3/00 ; G06F19/00
The invention provides a convertor station electrical signals-based subsynchronous oscillation monitoring analysis method. The method includes the following steps that: step 1, acquiring and selecting appropriate converter station electrical signals x (k); and step 2, adopting a windowed interpolation FFT algorithm and an ESPRIT algorithm to identify the subsynchronous oscillation information of the electrical signals x (k). Compared with the prior art, and according to the convertor station electrical signals-based subsynchronous oscillation monitoring analysis method provided by the invention, the windowed interpolation FFT algorithm and the ESPRIT algorithm are applied to electrical signal analysis, and therefore, analysis precision can be improved; and monitoring and prevention of subsynchronous oscillation can be performed based on the method, so that the security and economical efficiency of the operation of a power grid and a unit can be improved.
公开/授权文献:
- CN104821579B 一种基于换流站电气信号的次同步振荡监测分析方法 公开/授权日:2018-10-23
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 |