摘要
传统分布式电源电网网架忽略电网持续稳定性的约束,导致电源电网电压分布不均、网损较大。为此,根据电网单元制规划法的电网单元制规划操作流程,构建基于单元制规划的分布式电源电网模型。以分布式电源电网网损最小化为目标函数,运用潮流约束减少冗余优化变量,使电网运行过程中一直维持热稳定约束,实现分布式电源电网网架重构。实验结果表明:所研究分布式电源电网实施重构模型应用后,电网的电压分布更加均匀,且电网的有功损耗降低显著,该模型可利用较短时间完成不同电网负荷系数下的分布式电网网架重构,具有较高应用效率。
The traditional distributed power grid structure ignores the constraint of continuous stability of power grid,which leads to uneven distribution of voltage and large loss of power grid.To this end,according to the operation process of grid unit planning method,a grid framework reconstruction model of distributed power supply based on grid unit planning is constructed.Taking the minimum network loss of distributed generation as the objective function,the current constraints are used to reduce redundancy optimization variables and maintain its thermal stability constraints in the power grid operation,so as to realize the distributed power grid network reconstruction.The experimental results show that the voltage distribution of the distributed power grid is more uniform and the active power loss of the grid is significantly reduced after the reconfiguration model is applied in the studied distributed power grid,and the model can be used to complete the reconfiguration of the distributed power grid under different load factors in a shorter time,which has higher application efficiency.
作者
李冰
陈刚
魏弋然
陈德高
LI Bing;CHEN Gang;WEI Yi-ran;CHEN De-gao(Stat Grid Urumqi Power Supply Company,Urumqi 830011,China)
出处
《信息技术》
2021年第6期148-153,共6页
Information Technology
关键词
单元制规划
分布式电源
电网网架重构
网损最低化
热稳定约束
cellular planning
distributed generation
grid reconfiguration
network loss minimization
thermal stability constraints
