佛山配电网电能质量监测系统技术应用研究-电气工程专业论文.docxVIP

华北电力大学硕士学位论文 华北电力大学硕士学位论文 I I 摘 要 随着现代工业的快速发展，铁磁性元件和电力电子技术为代表的各类生活、 办公和生产负荷等非线性电力负荷进行大量的安装和使用，配网中的谐波和电压 闪变等电能质量问题日益严重，对电网产生许多负面影响。建设电能质量监测系 统，对系统和重要负荷的电能质量状况进行实时监测，是改善电能质量环境，减 少劣质电能造成损失的必要手段。 本文通过对佛山配网电能质量干扰源进行统计、分析，掌握了配网用户的干 扰特性和污染程度，设计了佛山配网电能质量监测系统建设方案，研发了电能质 量监测系统及其配套监测终端，开发谐波治理补偿装置，并在电能质量恶劣的配 网终端进行试点运行。通过电能质量监测系统及谐波治理补偿技术应用研究，使 佛山配网系统谐波得到了较好的抑制，效果显著，有效的提升了佛山电网电能质 量。 关 键 词 ： 电能质量 ； 监测 ； 谐波治理 ； 无功补偿 II II ABSTRACT With the rapid development of modern industry, a lot of non -linear power loads such as iron magnetic components and power electronics technology are applied in all kinds of living, office and production. Harmonics and voltage flicker and other power quality problems are increasingly serious in the distribution network, which bring a lot of negative impact on the grid and users. It’s necessary to construct power quality monitoring system for power quality status of the distribution network and real-time monitoring of critical loads, in order to improve power quality environment and reduce loss caused by inferior energy. Firstly, this article analyzes power quality interference source statistics in Foshan distribution network by industry, masters the interference characteristics and contamination degree of users. Secondly, this paper develops a power quality monitoring system and supporting monitoring terminals, harmonic control compensation device as well. This paper also carries pilot operation of the whole system in harsh power quality distribution network terminal . Power quality and economic efficiency are compared before and after the operation. In the end, this paper designs upgrading program of power quality monit oring system in Foshan distribution network. Power quality is improved in Foshan distribution network by the research on the application of power quality monitoring system and harmonic compensation. KEY WORDS: power quality; monitoring; harmonic control; reactive power compensation PAGE PAGE 10 目 录 HYPERLINK \l _bookmark0 摘