2020年 03期

Optimal Placement of Three-phase Credible Measurements for Medium-voltage Distribution Networks


摘要(Abstract):

针对当前中压配电网量测系统远不能满足网络状态实时准确感知要求的问题,提出一种中压配电网三相可信量测优化配置方法;以三相状态估计误差总方差作为状态估计精度指标,建立三相可信量测优化配置模型,通过Cholesky分解将目标函数采用决策变量显式进行表达,从而可调用成熟的优化软件实现快速求解;采用13节点和37节点配电系统标准算例进行改进和仿真测试。结果表明,本文中所提方法可兼顾求解质量和速度,能够快速求得高质量的可信量测配置方案。

关键词(KeyWords): 中压配电网;三相可信量测;优化配置;状态估计

基金项目(Foundation): 国家电网有限公司科技项目(KJ19-1-23)

作者(Author): 刘超,王旭东,苏彦卓,丁一,王尧,田家辉

DOI: 10.13349/j.cnki.jdxbn.2020.03.012

参考文献(References):

[1] 王守相,葛磊蛟.主动配电系统运行与控制关键技术[J].电力建设,2015,36(1):85-90.

[2] 栾文鹏,王冠,徐大青.支持多种服务和业务融合的高级量测体系架构[J].中国电机工程学报,2014,34(29):5088-5095.

[3] WANG H,SCHULZ N N.A revised branch current-based distribution system state estimation algorithm and meter placement impact[J].IEEE Transactions on Power Systems,2004,19(1) :207-213.

[4] 徐臣,余贻鑫.提高配电网状态估计精度的量测配置优化方法[J].电力自动化设备,2009,29(7):17-21.

[5] SINGH R,PAL B C,VINTER R B.Measurement placement in distribution system state estimation[J].IEEE Transactions on Power Systems,2009,24(2):668-675.

[6] SINGH R,PAL B C,JABR R A,et al.Meter placement for distribution system state estimation:an ordinal optimization approach[J].IEEE Transactions on Power Systems,2011,26(4):2328-2335.

[7] PEGORARO P A,SULIS S.Robustness-oriented meter placement for distribution system state estimation in presence of network parameter uncertainty[J].IEEE Transactions on Instrumentation and Measurement,2013,62(5):954-962.

[8] LIU J Q,PONCI F,MONTI A,et al.Optimal meter placement for robust measurement systems in active distribution grids[J].IEEE Transactions on Instrumentation and Measurement,2014,63(5):1096-1105.

[9] GHASEMI DAMAVANDI M,KRISHNAMURTHY V,MARTI J R.Robust meter placement for state estimation in active distribution systems[J].IEEE Transactions on Smart Grid,2015,6(4):1972-1982.

[10] XIANG Y,RIBEIRO P F,COBBEN J F G.Optimization of state-estimator-based operation framework including measurement placement for medium voltage distribution grid[J].IEEE Transactions on Smart Grid,2014,5(6):2929-2937.

[11] 王红,张文,冯宗英.计及故障重构的配电网量测系统鲁棒性配置[J].电力系统自动化,2016,40(16):98-104.

[12] 韩斐,杨洪耕,王佳兴,等.基于配网先验信息的谐波状态估计量测点最优配置[J].电测与仪表,2015,52(6):23-26,48.

[13] 赵辉,赵少华,王红君,等.基于分段迭代法的PMU的优化配置研究[J].电测与仪表,2016,53(13):14-18.

[14] 李伟光,卢锦玲.基于免疫离散粒子群算法的主动配电网PMU测量位置优化[J].电测与仪表,2018,55(21):14-18,30.

[15] 戚艳,梁栋,董逸超,等.配电系统关键量测解耦快速辨识及鲁棒量测优化配置[J].电测与仪表,2017,54(19):32-38.

[16] BENOIST T,ESTELLON B,GARDI F,et al.Localsolver 1.x:a black-box local-search solver for 0-1 programming[M]// 4OR:Q J Oper Res 9.[S.l.]:Springer Nature,2011:299.

[17] KERSTING W H.Radial distribution test feeders[J].IEEE Transactions on Power Systems,1991,6(3):975-985.