考虑源荷功率特性的交直流配电分时能效对比

王磊; 闫智超; 韩肖清; 李胜文; 刘江涛; 温敏敏

doi:10.19912/j.0254-0096.tynxb.2022-1673

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (10) : 97-106. DOI: 10.19912/j.0254-0096.tynxb.2022-1673

考虑源荷功率特性的交直流配电分时能效对比

王磊¹, 闫智超¹, 韩肖清¹, 李胜文², 刘江涛³, 温敏敏¹

作者信息 +

TIME SEQUENCE ENERGY EFFICIENCY COMPARISON OF AC AND DC DISTRIBUTION SYSTEMS CONSIDERING SOURCE AND LOAD POWER CHARACTERISTICS

Wang Lei¹, Yan Zhichao¹, Han Xiaoqing¹, Li Shengwen², Liu Jiangtao³, Wen Minmin¹

Author information +

文章历史 +

摘要

对交、直流配电网进行能效进行对比分析,提出考虑源荷功率特性的交直流配电系统能效评估方法。首先对光伏、储能和电动汽车及其他办公负荷特性分别进行详细分析;之后基于低压交、直流配电系统典型结构,建立换流设备的效率函数及线路损耗模型,研究考虑源荷功率特性的交直流分时能效对比方法,在源荷不同运行方式、不同容量占比情况下,对交流与直流系统进行基于时序的能效对比分析。最后,基于实际直流示范工程配置,设计相同网络拓扑结构的交流、直流配电网,进行能效对比计算。

Abstract

This paper proposes a method of energy efficiency evaluation based on the source and load characteristics, and compares the energy efficiency of AC and DC distribution networks. Firstly, a detailed power model of photovoltaics, energy storage, electric vehicles and other office load are developed. Then, based on typical structure of low voltage AC and DC distribution system, the efficiency function of the converter and line loss model are established. The AC and DC energy efficiency comparison method considering power characteristics is studied, and the comparative analysis of energy efficiency based on time sequence is presented under the different operating conditions and capacity proportions in AC and DC systems. Finally, the energy efficiency comparison is presented for the same AC and DC distribution structure based on DC demonstration project.

导出引用

王磊, 闫智超, 韩肖清, 李胜文, 刘江涛, 温敏敏. 考虑源荷功率特性的交直流配电分时能效对比[J]. 太阳能学报. 2023, 44(10): 97-106 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1673

Wang Lei, Yan Zhichao, Han Xiaoqing, Li Shengwen, Liu Jiangtao, Wen Minmin. TIME SEQUENCE ENERGY EFFICIENCY COMPARISON OF AC AND DC DISTRIBUTION SYSTEMS CONSIDERING SOURCE AND LOAD POWER CHARACTERISTICS[J]. Acta Energiae Solaris Sinica. 2023, 44(10): 97-106 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1673

中图分类号： TM71

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