Algorithm for Power Flow of Electric Traction Network Based on Equivalent Circuit of AT-Fed System
-
摘要: 在自耦变压器(AT)等值电路的基础上,提出了牵引网潮流的改进算法.改进算法中将机车视作恒功率模型,考虑了AT的漏抗值,利用迭代法和叠加原理进行供电区间多列车运行的潮流计算.该算法能计算AT漏抗值对牵引网电气特性的影响.仿真结果表明,对单列车情况迭代5次左右即收敛,对4列车情况迭代10次左右收敛;算法对供电区间任意位置单列和多列车的情况均适用,且较AT等值电路的一般算法精确.Abstract: An improved algorithm based on equivalent circuit of autotransformer-fed(AT-fed) systems was proposed to calculate power flows of electric traction networks.In the proposed algorithm,locomotives are treated as a constant power model,and the leakage impedance of ATs is considered.Power flows when there are multiple trains are calculated by the principle of superposition and iteration.The influence of leakage impedance ATs on the performances of electric traction networks can be simulated with the proposed algorithm.Results of simulation show that the algorithm converges after about 5 iterations for single train,and about 10 iterations for 4 trains;it can solve the power flow problem of AT-fed efficiently regardless of the number and positions of trains;and it is more accurate than the commonly used algorithms based on equivalent circuit of AT-fed system.
-
Key words:
- traction network /
- AT-fed system /
- equivalent circuit /
- leakage impedance /
- power flow calculation
-
赵慧芳.电气化铁道AT供电用自耦变压器[J].变压器,1998,35(8):9-12.ZHAO Huifang.Auto-transformer for AT power supply of electric railway[J].Transformer,1998,35 (8):9-12.[2] HSI P H,CHEN S L,LI R J.Simulating on-line dynamic voltages of multiple trains under real operating conditions for AC railways[J].IEEE Trans.Power Syst.,1999,14(2):452-459.[3] HILL R J,CEVIK I H.On-line simulation of autotransformer-fed AC electric railroad traction networks[J].IEEE Trans.Veh.Technol,1993,42(3):365-372.[4] LEE S H,KIM J O,JUNG H S.Analysis of catenary voltage of an AT-fed AC HSR system[J].IEEE Trans.Veh.Technol,2004,53(6):1 856-1 862.[5] GOODMAN C J,SIU L K,HO T K.A review of simulation models for railway systems[C]// Proceedings of International Conf.on Development in Mass Transit Systems,London:[s.n.] ,1998:80-85.[6] MARTIN P.Train performance and simulation[C]//Proceedings of IEEE Winter Simulation Conference.Piscataway:IEEE Press,1999:1 287-1 294.[7] HILL R J.Electric railway traction-part3:traction power supplies[J].Power Engineering Journal,1994,8(11):275-286.[8] 池云莉,何天键,梁嘉杰.电气化铁道系统概率潮流算法研究[J].电气化铁道,2004(6):4-20.CHI Yunli,HE Tianjian,LIANG Jiajie.Research on algorithm of probabilistic load flow for AC electric railway system[J].Electric Railway,2004 (6):4-20.[9] 何天健,池云莉,邵乐基,等.电气化铁道动力供电系统模拟[J].交通运输系统工程与信息,2005,5(3):93-107.HE Tianjian,CHI Yunli,SHAO Leji,et al.Traction power system simulationin electrified railways[J].Journal of Transportation Systems Engineering and Information Technology,2005,5(3):93-107.[10] 辛成山.AT供电系统等值电路推导方法[J].电气化铁道,1999(1):17-20.XIN Chengshan.The derivation method for equivalent circuit of AT-fed system[J].Electric Railway,1999 (1):17-20.[11] 李自良,陈薇,党平,等.电气化铁道自耦变压器供电方式的原理分析[J].电气化铁道,1998(3):12-18.LI Ziliang,CHEN Wei,DANG Ping,et al.Principle analysis of auto-transformer power supply of electric railway[J].Electric Railway,1998(3):12-18.[12] 曹建猷.电气化铁道供电系统[M].北京:中国铁道出版社,1983:162-171.CAO Jianyou.Power supply system of electric railway[M].Beijing:China Railway Press,1983:162-171.[13] 万庆祝,陈建业,王赞基.电气化铁道系统计算机仿真的研究进展[J].机车电传动,2006(5):2-5.WAN Qingzhu,CHEN Jianye,WANG Zanji.Progresses on study of computer simulation for electrified railway systems[J].Electric Drive for Locomotives,2006(5):2-5.[14] 王风华.不对称坐标变换和AT供电方式牵引网[J].西南交通大学学报,1982(2):79-88.WANG Fenghua.Transformation of unsymmetrical coordinates and the AT supplied catenary system[J].Journal of Southwest Jiaotong University,1982 (2):79-88.
点击查看大图
计量
- 文章访问数: 1582
- HTML全文浏览量: 73
- PDF下载量: 415
- 被引次数: 0