含高比例分布式光伏接入的配电网韧性评估方法
Resilience evaluation method of distribution networks with high proportion distributed photovoltaic integration
王玉财 1李志远 1吴一凡 1李旭涛2
作者信息
- 1. 国网宁夏电力有限公司宁东供电公司,宁夏 灵武 750411
- 2. 国网宁夏电力有限公司电力科学研究院,宁夏 银川 750011
- 折叠
摘要
高比例分布式光伏接入配电网后会引发一系列电能质量问题,使配电网的韧性下降,导致敏感负荷无法正常运行,甚至中断造成巨大的经济损失.为了量化高比例分布式光伏接入后引发的电能质量问题对配电网韧性的影响,提出利用电能质量指标越限裕度构建梯形曲线的方法,结合MATLAB和Open-DSS的仿真验证了分布式光伏在不同接入情况下对韧性的影响,并从规划阶段提出了提高配电网韧性的建议.
Abstract
The integration of distributed photovoltaic(PV)systems into distribution networks at a high proportion can precipitate a multitude of power quality issues,thereby diminishing the resilience of these networks.This compromised resilience can weaken sensitive loads,potentially leading to operational failures,interruptions and substantial economic losses.To quantitatively assess the impact of these power quality issues on the resilience of distribution networks engen-dered by the extensive integration of distributed PV,this study introduces a novel method that employs the margin of power quality indices exceedance to construct trapezoidal curves.Finally,through a combination of simulations conduc-ted in MATLAB and OpenDSS,this paper validates the impact of distributed PV on network resilience under different cases.Furthermore,suggestions for power companies to enhance the resilience of the distribution network are also presented during the planning phase.
关键词
韧性/分布式光伏/电能质量/配电网Key words
resilience/distributed photovoltaic/power quality/distribution network引用本文复制引用
基金项目
国网宁夏电力有限公司科技项目(5229ND230001)
出版年
2024
国家科技期刊平台
NSTL
万方数据