电工技术学报2017，Vol.32Issue(6)：98-105,8.
用于次同步振荡模态提取的柔性原子滤波
Flexible Atom Filtering for Subsynchronous Oscillations Mode Extraction
刘林 1李海峰 1罗凯明 1陆晓 1林涛 2薛峰3
作者信息
- 1. 国网江苏电力调度控制中心 南京 210024
- 2. 武汉大学电气工程学院 武汉 430072
- 3. 南京南瑞集团公司 南京 211106
- 折叠
摘要
Abstract
The conventional subsynchronous oscillations (SSO) mode extraction methods have some shortages, such as lower mode identification, worse dynamic characteristics and poor anti-noise ability. Thus, this paper proposes a novel flexible atom filtering method, where the time and frequency window can be adjusted flexibly. Thus high mode identification and fast dynamic characteristics can be achieved. The central frequency of the filter is set within the SSO frequency scale. By filtering, the method can obtain the frequency and amplitude envelope curves. The least square method is deployed to get initial oscillation amplitude and attenuation factor. Matlab simulation cases and IEEE first benchmark cases in EMTDC/PSCAD have verified the correctness and effectiveness of the method. The simulation results have shown that the method can accurately identify the spectrum-intensive complex oscillation modes and time varying oscillations. The method is also robust to Gauss white noise.关键词
次同步振荡/柔性原子滤波/动态特性/尺度因子/噪声鲁棒性/IEEE第一标准测试模型Key words
Subsynchronous oscillation/flexible atom filter/dynamic characteristics/scale factor/noise robust/IEEE first benchmark model分类
信息技术与安全科学引用本文复制引用
刘林,李海峰,罗凯明,陆晓,林涛,薛峰..用于次同步振荡模态提取的柔性原子滤波[J].电工技术学报,2017,32(6):98-105,8.
