摘要
针对高渗透率下的分布式发电影响配电网电压质量的问题,研究了一种带高渗透分布式发电的配电网的典型结构并建立了仿真模型。仿真分析结果表明,高渗透下分布式发电系统带来的能量流波动是中低压配电网中引起电压质量问题的根本原因。基于仿真分析的结果,提出了通过逆变型微源注入功率调整电压的方法,采用适当的控制策略有效改善了配电网的电压质量,达到了预期的控制效果。
High permeability of distributed generation(DG) affects voltage quality of distribution network.This paper studies a typical structure of distribution network with high permeability of DG and sets up simulated model.The simulated result shows that the energy flow from DG is the essential reason incurring voltage quality problems in mid-voltage or low-voltage distribution network.Based on the result of simulation analysis,this paper provides a method for improving voltage quality by injecting power with inverter based micro source and using proper control strategy,which obtains expectant effect.
出处
《水电能源科学》
北大核心
2010年第9期154-157,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(50807052)
