基于最大供电能力的中压电缆网络优化
Optimization of Medium Voltage Cable Network Based on Total Power Supply Capability
完善 1吴万禄 2贺静 1韦钢2
作者信息
- 1. 国网上海市电力公司嘉定供电公司,上海 201800
- 2. 上海电力学院,上海 200090
- 折叠
摘要
城市配电网络结构优化对配电网供电能力和设备利用率具有重要的影响.基于“N-1”安全准则,对配电网负荷转供能力进行研究,提出了一种配电网供电能力的计算方法.定义了区域配电网最大供电能力,以配电网络年综合投资成本最小为目标函数,以最大供电能力、变电容量释放和变电站间联络等为约束,建立了开关站供电模式的中压电缆网络优化规划模型,采用数学软件包进行求解.算例验证了算法和模型的有效性,与常规配电网优化规划结果相比,供电能力和经济效益得到了明显的改善.
Abstract
Optimization of urban distribution network structure has critical impacts on the power supply capability and equipment utilization.Based on the "N-1" principle,load transfer capability of distribution network was studied,and a new method of calculating the power supply capability was proposed through contact relation matrix.The total power supply capability was defined,and an optimal planning model of medium voltage cable network structure using switching substations was given,which takes the least comprehensive annual cost of investment as objective function and maximum power supply capability,capacity release and contact between substations as constraints.The model was solved by mathematical software package,and the practical sample verified the practicability of the model and algorithm.Compared with the conventional optimization planning,power supply capability and economic benefit are improved significantly.
关键词
配电网/最大供电能力/电缆网络/开关站Key words
distribution network/total power supply capability/cable network/switching substation引用本文复制引用
基金项目
国家电网公司科技项目(5209311200GW)
上海市教育委员会重点学科建设项目(J51301)
出版年
2014
NETL
NSTL
维普
万方数据