摘要
为了探究交直流混合配电网的节能潜力,并满足用户对供电可靠性和电压质量的要求,提出了一种交直流混合配电网能效综合评价方法。首先,分析了交直流混合配电网中影响能效的传统因子和新型因子,并推导出了各影响因子的量化模型;其次,从中压配电网、配电变压器、低压直流配电网和低压交流配电网4个方面构建了交直流混合配电网能效评估指标体系;最后,以某地区配电网为案例,对改造前的交流配电网和改造后的交直流混合配电网进行了能效评估。结果表明,交直流混合配电网的能效等级高于传统交流配电网,且性能指标方面也有明显优势。
To explore the energy savingpotential of AC/DC hybriddistribution network andmeet users＇ requirements of power supply reliability and voltage quality,this paper proposes a comprehensive valuation method for the energy efficiency of AC/DC hybrid distribution network. Firstly,we analyze the traditional and newfactors affecting the energy efficiency of AC/DC hybrid distribution network,and deduce the quantitative models for each impact factor. Secondly,we construct the evaluation index system for the energy efficiency of AC/DC hybrid distribution network from four aspects of medium voltage distribution network,distribution transformers,low-voltage DC distribution network and low-voltage AC distribution network.Finally,taking a distribution network as example, we estimate the energy efficiency of AC hybrid distribution networkbeforetransformationand that of AC/DC hybrid distribution networkafter the transformation. The results showthat the energy efficiency of AC/DC hybrid distribution networkis better than that of traditional AC distribution network,and the performance indicators have obvious advantages.
出处
《电力建设》
北大核心
2016年第5期100-108,共9页
Electric Power Construction
基金
中国电力科学研究院实验室开放基金项目(YD83-16-037)
关键词
交直流混合配电网
能效指标
综合评价
AC/DC hybriddistribution network
energy efficiency index
comprehensive evaluation
