摘要
对含有绿色能源的直流配电系统的供电能力进行科学的评估与计算,已成为当前城市电网精细化评估与规划工作的关键一环。针对这一需求提出一种直流配电网供电能力分析方法,以N-1安全准则作为系统运行的边界条件,考虑直流配电网中换流站站内供电能力和电网供电转移能力,分析了直流配电系统供电能力的计算方法。在此计算方法的基础上研究了光储一体化电站的接入对直流配电网供电能力的影响,进而研究了储能容量在同一个光储电站内以及多个不同光储电站之间如何配置可以使直流配电网的供电能力达到最大的问题。最后,通过对一组直流配电网络拓扑案例的供电能力计算验证了所提分析方法的有效性,仿真结果为含光储一体化电站的直流配电网规划、评估、设计提供理论依据。
The scientific evaluation and calculation of the power supply capacity of DC power distribution system containing green energy has become a key part of the fine evaluation and planning of urban power grid.In view of this demand,a method for analyzing the power supply capacity of DC distribution network is proposed.Taking N-1 safety criterion as the boundary condition of system operation,the calculation method of power supply capacity of DC distribution system is analyzed considering the power supply capacity of converter station and the power transfer capacity of the grid.Based on this calculation method,the influence of the access of the integrated optical storage power station on the power supply capacity of the DC distribution network is studied,and then how to configure the energy storage capacity in the same optical storage power station and among several different optical storage power stations to maximize the power supply capacity of the DC distribution network is studied. Finally, the effectiveness of the proposed analysis method is verified by calculating the power supply capacity of a group of DC distribution network topology cases. The simulation results provide a theoretical basis for the planning, evaluation and design of DC distribution network of integrated power station with optical storage.
作者
陈翔宇
王畅
李路畅
王安琪
杨林
傅守强
韩民晓
刘海军
CHEN Xiangyu;WANG Chang;LI Luchang;WANG Anqi;YANG Lin;FU Shouqiang;HAN Minxiao;LIU Haijun(Economic and Technological Research Institute,State Grid Jibei Electric Power Co.,Ltd.,Beijing 100038;Beijing Jingyan Electric Power Engineering Design Co.,Ltd.,Beijing 100038;School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206;State Key Laboratory of Advanced Transmission Technology,State Grid Smart Grid Research Institute Co.,Ltd.(Global Energy Internet Research Institute Co.,Ltd.),Beijing 102209)
出处
《电气工程学报》
CSCD
2023年第3期242-249,共8页
Journal of Electrical Engineering
基金
国网冀北电力公司科技资助项目(52018F20001M)。
关键词
直流配电网
最大供电能力
光储一体化
N-1安全准则
DC distribution network
maximum power supply capacity
integration of photovoltaic and storage
N-1 safety criterion
