低压直流配电系统在智能楼宇中的试点应用分析

Analysis of Pilot Application of Low-voltage DC Power Distribution System in Intelligent Buildings

在能源革命和“双碳”战略背景下,直流配电是源-网-荷-储互动和提高能效的重要技术和形态。依托国网山西省电力公司电力科学研究院直流配电示范与实证平台对直流配电系统性能展开研究,设计了一种低压直流配电网拓扑结构,并采用基于时序仿真的能效对比方法,对典型日内交、直流配电系统的能效进行仿真计算。结果表明,在相同网络结构下,直流配电网在传输效率方面有着更好的性能。

Under the background of energy revolution and“Carbon Peaking and Carbon Neutrality”strategy,DC power distribution is an important technology and form of source-network-charge-storage interaction and energy efficiency improvement.Based on the DC distribution example and demonstration platform of the Electric Power Research Institute of State Grid Shanxi Electric Power Company,this paper studies the performance of DC distribution system,designs a topology structure of low-voltage DC distribution network,and uses the energy efficiency comparison method based on time series simulation to simulate and calculate the energy efficiency of typical intra-day AC and DC distribution system.The results show that under the same network structure,DC distribution network has better performance in terms of transmission efficiency.