基于无功优化的农村配电网低电压治理方法及改进

Control Method and Improvement of Rural Low Voltage Distribution Network Based on Reactive Power Optimization

摘要: 农村配电网末端存在的“低电压”问题影响了用户的电能质量，消除“低电压”问题已成为供电企业保障客户电能质量的基本要求。考虑到“低电压”问题对用户的影响，在深入分析低电压产生原因的基础之上，结合A地区“低电压”问题治理现状，综合对比不同技术措施的实施效果。通过对配电网末端三相负荷不平衡的典型台区进行案例分析，提出一种在距产生“低电压”配电网线路区域内最优位置安装低压动态无功补偿装置的方案，最后利用MATLAB建立该方案的仿真模型，实验结果验证了方案的合理性。

Abstract: The “low voltage” produced by the terminal of the distribution network concerns the quality of thousands of households’ life. Eliminating the “low voltage” has become the most basic request in the electric power supply company. Considering the influence of low voltage on the users, based on the deep analysis of the causes of low voltage, combined with the current situation of “low voltage” problem management in region A, the effect of different technical measures is comprehensively compared. Based on the case analysis of typical three-phase load imbalance at the end of distribution network, a scheme is proposed to install low-voltage dynamic reactive power compensation device at the optimal position in the region of low-voltage distribution network. In addition, a model was established based on the Simulink simulation to verify the rationality of the scheme.