考虑GIS信息的城市配电系统网格化动态投资策略优化  

Optimization of Grid Dynamic Investment Strategy for Urban Distribution System Considering GIS Information

作　　者：马杰 李秋燕 王利利 于昊正 郭新志 唐早 李争博 苏童 刘友波[2] MA Jie;LI Qiuyan;WANG Lili;YU Haozheng;GUO Xinzhi;TANG Zao;LI Zhengbo;SU Tong;LIU Youbo(State Grid Henan Economic Research Institute,Zhengzhou 450052,China;College of Electrical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]国网河南省电力公司经济技术研究院,郑州市450052 [2]四川大学电气工程学院,成都市610065

出　　处：《电力建设》2021年第11期54-62,共9页Electric Power Construction

基　　金：国网河南省电力公司科技项目(5217L0200007)。

摘　　要：配电网分区规划能够实现配电网规划由大到小、由繁到简,独立的网格规划能避免配电网集中规划计算量过大的问题。基于配电网网格划分结果,提出一种考虑地理信息系统(geographic information system,GIS)信息的城市配电网格动态投资策略。首先,建立基于Matlab-OpenDSS的配电网投资仿真方法,其中Matlab生成配电网投资策略,OpenDSS搭建配电网格物理模型,并通过计算相应的投资指标校验投资策略的可行性。其次,明确配电网规划投资的目标函数及其周期数。然后,采用NSGA-Ⅱ算法优化求解出兼顾配电网规划方案多目标需求的各周期最优投资策略,下一周期的投资依托于上一周期的最优投资方案进行测算,从而使配电网动态投资更加符合配电网实际投资与建设流程。所提方法将多个规划评估指标加入目标函数,可提升投资策略的经济性、可行性;同时,利用动态规划将总的投资周期分成多个短期过程,更契合投资规划需求。最后,以某城市配电网格作为算例系统验证了所提方法的可行性。Zoning planning can make the distribution network planning from large to small,from complex to simple.Independent grid planning can avoid the problem of too much calculation burden in centralized distribution network planning.Therefore,according to the results of grid division,this paper proposes a grid dynamic investment strategy for urban distribution network considering Geographic Information System(GIS).Firstly,this paper establishes a distribution network investment simulation platform based on Matlab-OpenDSS,where Matlab generates distribution network investment strategies,OpenDSS establishes a physical model of the computing grid,and calculates the corresponding investment indicators to correct the feasibility of the investment strategy.Secondly,we clarify the multi-objective and the number of cycles of the investment in the distribution network planning.Then,the NSGA-II algorithm is used to optimize the investment strategy for each cycle,which takes into account the multi-objective requirements of the power network planning scheme,and the investment in the next cycle depends on the optimal investment plan of the previous cycle for measurement,so as to make the dynamic investment more in line with the actual investment and construction process of the distribution network.In the proposed method,a number of planning evaluation indicators are added to the objective function,which can improve the economy and feasibility of the investment strategy;at the same time,dynamic programming is used to divide the total investment cycle into several short-term processes,which is more in line with the needs of investment planning.Finally,a real city distribution network is used as the test system to verify the feasibility of the proposed method.

关 键 词：城市配电网 网格规划 地理信息系统(GIS) 动态投资 NSGA-Ⅱ 

分 类 号：TM715[电气工程—电力系统及自动化]