考虑源荷互补的低压网络拓扑规划方法研究  

Research on Low-voltage Network Topology Planning Method Considering Source and Load Complementarity

作　　者：李中兴[1] 李峰[2] 管霖[1] 陈恒安 卢操 梁海镇 Li Zhongxing;Li Feng;Guan Lin;Chen Heng'an;Lu Cao;Liang Haizhen(South China University of Technology,Guangzhou Guangdong 510640,China;Guangdong Power Grid Co.,Ltd.Power Grid Planning&Research Center,Guangzhou Guangdong 510000,China)

机构地区：[1]华南理工大学,广东广州510640 [2]广东电网公司规划研究中心,广东广州510000

出　　处：《电气自动化》2022年第3期17-21,共5页Electrical Automation

基　　金：国家自然科学基金国际(地区)合作与交流项目(51761145106)

摘　　要：针对目前变压器容量规划过大和低压线路负荷分布不均等问题,提出了一种考虑源荷出力互补的配电变压器供电分区与低压网架优化规划模型。低压配电网规划解耦为配电变压器供电分区以及低压网络规划。在配变分区模型中考虑供电距离和配变容量约束以及源荷出力曲线互补的影响,以系统年综合成本最小为目标优化。在低压网络规划模型中,综合考虑源荷平衡度、负荷平衡度和线路均衡度等指标,采用启发式拓扑规划算法求解。算例表明,所提出的方法能够实现台区与馈线间负荷与分布式电源均衡分布,有效降低配电系统综合成本。Aiming at the problems of excessive transformer capacity planning and uneven load distribution of low-voltage lines, an optimal planning model for distribution transformer power supply partitions and low-voltage networks considering source-load complementarity was proposed. The planned decoupling of low-voltage distribution network was divided into distribution transformer power supply partitions and low-voltage network planning. In the distribution transformer partition model, the power supply distance and the distribution transformer capacity constraints and the complementary effects of the source-load output curve were considered, and the system was optimized with the minimum annual comprehensive cost of the system. In the low-voltage network planning model, indicators such as source-load balance, load balance, and line balance are comprehensively considered, and a heuristic algorithm for topology planning was used to solve the problem. The calculation example shows that the proposed method can realize the balanced distribution of load and distributed power between the station area and the feeder, and effectively reduce the comprehensive cost of the power distribution system.

关 键 词：低压网络 供电分区 源荷曲线互补 拓扑规划 启发式算法 

分 类 号：TM73[电气工程—电力系统及自动化]