基于局部电压稳定指标的电压/无功分区调节方法A New Algorithm for Partitioned Regulation of Voltage and Reactive Power in Power System Utilizing Local Voltage Stability Index
姜涛;陈厚合;李国庆;
摘要(Abstract):
提出一种局部电压稳定指标和动态经济压差法相结合的电压/无功分区调节新方法。首先利用局部电压稳定指标对系统负荷节点的电压稳定度进行排序;接着针对排完序的负荷节点划分电压/无功调节区,推导并采用局部电压稳定指标灵敏度计算调节区内各负荷节点间电压相互影响程度,根据节点间电压相互影响程度辨识区域内的电压/无功调节关键节点和非关键节点;然后借助动态经济压差法计算电压/无功调节关键节点无功补偿量;最后将所提方法应用于IEEE-14系统中,算例仿真结果验证了文中所提方法的可行性和有效性。
关键词(KeyWords): 电压稳定性;局部电压稳定指标;经济压差法;无功补偿
基金项目(Foundation): 国家自然科学基金项目(50977009)~~
作者(Author): 姜涛;陈厚合;李国庆;
Email:
DOI: 10.13335/j.1000-3673.pst.2012.07.046
参考文献(References):
- [1]刘传铨,张焰.电力系统无功补偿点及其补偿容量的确定[J].电网技术,2007,31(12):78-81.Liu Chuanquan,Zhang Yan.Confirmation of reactive powercompensation node and its optimal compensation capacity[J].PowerSystem Technology,2007,31(12):78-81(in Chinese).
- [2]颜伟,高强,余娟,等.输电网络的分层分区电压无功调节方法[J].电网技术,2011,35(2):71-77.Yan Wei,Gao Qiang,Yu Juan,et al.An algorithm for hierarchicaland partitioned regulation of voltage and reactive power intransmission network[J].Power System Technology,2011,35(2):71-77(in Chinese).
- [3]乔梁,卢继平,黄蕙,等.含风电场的电力系统电压控制分区方法[J].电网技术,2010,34(10):163-168.Qiao Liang,Lu Jiping,Huang Hui,et al.Voltage control partitioningfor power containing grid-connected wind farms[J].Power SystemTechnology,2010,34(10):163-168(in Chinese).
- [4]Chowdhury B H,Taylor C W.Voltage stability analysis:V-Q powerflow simulation versus dynamic simulation[J].IEEE Transactions onPower Systems,2000,15(4):1354-1359.
- [5]Mínguez R,Milano F,Milano R Z,et al.Optimal network placementof SVC devices[J].IEEE Transactions on Power Systems,2007,22(4):1851-1860.
- [6]卢志刚,秦四娟,常磊,等.基于Dempster-Shafer证据理论的无功/电压控制分区[J].电网技术,2010,34(10):99-104.Lu Zhigang,Qin Sijuan,Chang Lei,et al.Network partitioning forreactive power/voltage control based on dempster-shafer evidencesfusion[J].Power System Technology,2010,34(10):99-104(inChinese).
- [7]Canizares C.Voltage stability assessment:concepts,practices andtools[R].Toronto:IEEE/PES Power System Stability SubcommitteeSpecial Publication,2002.
- [8]Taylor C W.Power system voltage stability[M].NewYork:McGraw-Hill,1994:27-31.
- [9]张靖,程时杰,文劲宇,等.通过选择SVC安装地点提高静态电压稳定性的新方法[J].中国电机工程学报,2007,27(34):7-11.Zhang Jing,Cheng Shijie,Wen Jinyu,et al.A novel steady-statevoltage stability enhancement method based on SVC allocation[J].Proceedings of the CSEE,2007,27(34):7-11(in Chinese).
- [10]汤广福,刘文华.提高电网可靠性的大功率电力电子技术基础理论[M].北京:清华大学出版社,2010:97-103.
- [11]Kessel P,Glavitsch H.Estimating the voltage stability of a powersystem[J].IEEE Transactions on Power Delivery,1986,1(3):346-354.
- [12]余贻鑫,贾宏杰,严雪飞.可准确跟踪鞍节点分岔的改进局部电压稳定指标LI[J].电网技术,1999,23(5):19-23.Yu Yixin,Jia Hongjie,Yan Xuefei.An improved local voltagestability index LI,which can trace saddle node bifurcationexactly[J].Power System Technology,1999,23(5):19-23(inChinese).
- [13]贾宏杰,余贻鑫,王成山.利用局部指标进行电压稳定在线监控的研究[J].电网技术,1999,23(1):45-49.Jia Hongjie,Yu Yixin,Wang Chengshan.An application of localindex to online monitoring and control of power system voltagestability[J].Power System Technology,1999,23(1):45-49(inChinese).
- [14]贾宏杰.电力系统小扰动稳定域的研究[D].天津:天津大学,2001.
- [15]钱峰,郑健超,汤广福,等.利用经济压差确定动态无功补偿容量的方法[J].中国电机工程学报,2009,29(1):1-6.Qian Feng,Zheng Jianchao,Tang Guangfu,et al.New approach todetermine capacity of dynamic reactive power compensation[J].Proceedings of the CSEE,2009,29(1):1-6(in Chinese).