分布式能源场景下电能质量问题及其调控策略综述  

Overview of Power Quality Issues and Control Strategies in the Environment of Distributed Sources

作　　者：倪淏 戴聪 褚红雷 刘海杰 NI Hao;DAI Cong;CHU Honglei;LIU Haijie(Jiangsu Zhizhen Energy Technology Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]江苏智臻能源科技有限公司,江苏南京211100

出　　处：《电工技术》2024年第4期169-172,共4页Electric Engineering

基　　金：国家重点研发计划(编号SQ2020YFF0426410)。

摘　　要：随着分布式电源的日益普及,低压与中压配电系统中电能质量面临的挑战已成为亟需解决的问题之一。大多数可再生能源系统需要通过逆变器等电力电子器件连接到电网,容易产生电能质量问题;而电能质量的降低会导致电网供电性能下降,影响电气设备的使用寿命和效率。另外,电感和电容器的存在使得部分谐波产生串联或并联共振,更进一步导致了电压波动。通过对上述问题的讨论,为电能质量问题的研究提供参考。The increasing prevalence of distributed sources poses great challenge to power quality in low-voltage and medium-voltage distribution systems,which has become an urgent problem.The grid connection of renewable energy systems is mostly realized through power electronics such as inverters,making electric supply of grids susceptible to power quality problems and consequently affecting duration and efficiency of electrical equipment.In addition,due to the existence of inductors and capacitors,some harmonics undergo series or parallel resonance,which further leads to voltage fluctuations.Through critical discussion of the aforementioned problems,this paper provides useful information for studies on power quality problems.

关 键 词：分布式能源 电能质量 电压不平衡 谐波干扰 

分 类 号：TM73[电气工程—电力系统及自动化]