基于交叠概率的含风电的地区电网暂态电压稳定评估的特征选择Overlapped Probability Based Feature Selection for Assessment on Transient Voltage Stability of Regional Power System Containing Wind Farms
林泽坤;彭显刚;武小梅;欧英龙;
摘要(Abstract):
以选取风电地区暂态电压稳定特征量为目标,以最小落入交叠空间的概率为判据,从描述复杂电力系统的高维特征量中选取最简特征集,简化对风电地区暂态电压稳定的分析,同时达到了降低特征指标维度的目的。介绍了交叠概率算法的理论,运用交叠概率算法对特征量进行提取,对比标准39节点的电网和加入风电的标准39节点风电电网提取的交叠空间及选取的最简特征集,比较结果表明,用由交叠概率算法从高维特征量中选取的低维特征量组成的最简特征集描述同样的电力系统对象,也能具有较高的准确率。最后用神经网络验证选取的最简特征集的准确性。
关键词(KeyWords): 风力发电;暂态电压稳定;交叠概率;特征量
基金项目(Foundation): 广东省自然科学基金项目(10151009001000045);; 南方电网科技项目(K-GD2012-218)~~
作者(Author): 林泽坤;彭显刚;武小梅;欧英龙;
Email:
DOI: 10.13335/j.1000-3673.pst.2014.02.032
参考文献(References):
- [1]Smith J C,Milligan M R,DeMeo E A,et al.Utility wind integration and operating impact state of the art[J].IEEE Trans on Power Systems,2007,22(3):900-908.
- [2]李强,李凤婷,樊艳芳,等.风电并网对接入地区电压的影响[J].中国电力,2012,45(4):15-18.Li Qiang,Li Feng Ting,Fan Yanfang,et al.Voltage influence of wind power integration[J].Electric Power,2012,45(4):15-18(in Chinese).
- [3]张锋,李明霞,樊国伟,等.风电接入对地区电网暂态电压稳定性的影响[J].中国电力,2011,44(9):7-21.Zhang Feng,Li Mingxia,Fan Guowei,et al.Transient voltage stability study about a regional grid integrated with wind power[J].Electric Power,2011,44(9):7-21(in Chinese).
- [4]迟永宁,关宏亮,王伟胜,等.SVC与桨距角控制改善异步机风电场暂态电压稳定性[J].电力系统自动化,2007,31(3):95-100.Chi Yongning,Guan Hongliang,Wang Weisheng,et al.Enhancement of transient voltage stability of induction generator based wind farm by SVC and pitch control[J].Automation of Electric Power Systems,2007,31(3):95-100(in Chinese).
- [5]陈磊,刘天琪,文俊.基于二进粒子群优化算法的暂态稳定评估特征选择[J].继电器,2007,35(1):31-36.Chen Lei,Liu Tianqi,Wen Jun.Feature selection based on binary particle swarm optimization for transient stability assessment[J].Relay,2007,35(1):31-36(in Chinese).
- [6]王海燕,刘天琪,李兴源,等.基于蚁群优化算法的电力系统暂态稳定评估特征选择[J].电力系统保护与控制,2008,36(21):1-6.Wang Haiyan,Liu Tianqi,Li Xingyuan,et al.Feature selection based on ant colony optimization for power system transient stability assessment[J].Power System Protection and Control,2008,36(21):1-6(in Chinese).
- [7]向丽萍.电力系统暂态稳定评估中的特征选取[D].成都:西南交通大学,2004:1-30.
- [8]张凤,李兴源,胥威汀,等.基于交叠概率的暂态电压稳定评估特征选择[J].电网技术,2012,36(36):117-121.Zhang Feng,Li Xingyuan,Xu Weiting,et al.An overlapping probability based feature selection method for evaluation of transient voltage stability[J].Power System Technology,2012,36(36):117-121(in Chinese).
- [9]刘弹,徐光华,梁霖,等.基于邻接区域交叠概率的特征选择方法[J].机械工程学报,2009,45(2):114-118.Liu Dan,Xu Guanghua,Liang Lin,et al.Feature selection method based on overlapped probability of intersection area[J].Journal of Mechanical Engineering,2009,45(2):114-118(in Chinese).
- [10]胥威汀,刘俊勇,张凤,等.电力系统复杂事件的交叠空间及其提取[J].电网技术,2012,36(4):94-101.Xu Weiting,Liu Junyong,Zhang Feng,et al.Overlapped space of power system complex event and its determination[J].Power System Technology,2012,36(4):94-101(in Chinese).
- [11]曹曼.基于遗传模拟退火算法的暂态稳定评估特征选择[D].北京:华北电力大学,2006.
- [12]郝元钊,李培强,李欣然,等.风电机组对电力系统暂态稳定性影响分析[J].电力系统及其自动化学报,2012,24(2):41-46.Hao Yuanzhao,Li Peiqiang,Li Xinran,et al.Analysing the impact of wind plant on power system transient stability[J].Proceedings of the CSU-EPSA,2012,24(2):41-46(in Chinese).
- [13]杨娜.大型风电场接入电网后的系统稳定性分析[D].上海:上海交通大学,2008.
- [14]张鹏,赵喜,尹柏清,等.大规模运行风机脱网事故调查分析[J].内蒙古电力技术,2010,18(2):1-4.Zhang Peng,Zhao Xi,Yi Boqing,et al.Investigation analysis to grid dropout accident of large scale operating wind power units[J].Inner Mongolia Electric Power,2010,18(2):1-4(in Chinese).
- [15]叶希,鲁宗相,乔颖,等.大规模风电机组连锁脱网事故机理初探[J].电力系统自动化,2012,36(8):11-17.Ye Xi,Lu Zongxiang,Qiao Ying,et al.A primary analysis on mechanism of large scale cascading trip-off of wind turbine generators[J].Automation of Electric Power Systems,2012,36(8):11-17(in Chinese).
- [16]何世恩,董新洲.大规模风电机组脱网原因分析及对策[J].电力系统保护与控制,2012,40(1):131-144.He Shien,Dong Xinzhou.Cause analysis on large-scale wind turbine tripping and its countermeasures[J].Power System Protection and Control,2012,40(1):131-144(in Chinese).