引用本文:孟晓丽,唐巍,刘永梅,等.大规模复杂配电网三相不平衡潮流并行计算方法[J].电力系统保护与控制,2015,43(13):45-51.
MENG Xiaoli,TANG Wei,LIU Yongmei,et al.Parallel computing of three-phase unbalanced power flow in large-scale complex distribution network[J].Power System Protection and Control,2015,43(13):45-51
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大规模复杂配电网三相不平衡潮流并行计算方法
孟晓丽1, 唐巍2, 刘永梅1, 吕继兴3, 刘永福3
1.中国电力科学研究院，北京100192;2.中国农业大学信息与电气工程学院，北京100083;3.河北农业大学信息科学与技术学院，河北 保定 071000
摘要:
以牛顿拉夫逊法为基础，建立了复杂配电网中的三相配电线路、负荷、变压器和调压器等的数学模型，提出了复杂配电网三相不平衡潮流的并行计算方法，以提高大规模复杂配电网潮流计算的性能。考虑配电网的馈线数和节点数，设计了同构模式下多核(2、4)处理器的任务分配，对比负载均衡、并行加速比。通过IEEE 123节点标准馈线、某电网1000节点馈线及IEEE 123、37、34和13标准馈线拆装重组而成的数十条馈线等的仿真，对所提并行潮流计算方法的计算速度、收敛性和加速比进行测试和比较分析。仿真结果表明，所提并行计算算法能充分利用计算机的多核资源、显著提高了计算效率。
关键词:  三相潮流  牛顿拉夫逊法  并行计算  多核CPU  配电网
DOI：10.7667/j.issn.1674-3415.2015.13.007
分类号:
基金项目:国家电网公司科技项目“智能配用电的技术体系及仿真基础性问题研究”(PD71-12-010)；河北省科技发展计划项目(13215206)
Parallel computing of three-phase unbalanced power flow in large-scale complex distribution network
MENG Xiaoli1, TANG Wei2, LIU Yongmei1, LÜ Jixing3, LIU Yongfu3
1.China Electric Power Research Institute, Beijing 100192, China;2.College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China;3.College of Information Science & Technology, Agricultural University of Hebei, Baoding 071000, China
Abstract:
Based on the analysis of the mathematical model in Newton-Raphson method about three-phase distribution circuit, load, transformers and regulator, this paper puts forward a three-phase unbalanced power flow parallel computing method to improve the performance of large-scale complex distribution network computing. Integrating with feeder number and node number of the distribution network, the task assignment problems are designed in the isomorphism multicore processors. And the load balance and parallel speedup are analyzed and presented. Plenty of simulations are carried on the IEEE 123, a real 1 000 nodes and dozens of feeders, which are composed of IEEE 13, IEEE 34, IEEE 37 and IEEE 123, in order to test the convergence and computational efficiency of proposed algorithm. The simulation results show that the algorithm can reduce the calculation period, make full use of the resources of multicore processors, and significantly improve the computational efficiency.
Key words:  three-phase power flow  Newton-Raphson method  parallel computing  muticore CPU  distribution network
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