基于耐受渗透比的10 kV配电网分布式电源规划

针对目前分布式电源(DG)规划方法建模求解复杂的问题,提出配电网DG耐受渗透比的概念。分析了配电网特征参数对耐受渗透比的影响,并提出了一种基于耐受渗透比的10 kV配电网DG规划方法。首先根据10 kV配电线路的电气特征进行分类。然后建立各类线路的基态线路模型。其次在同类线路的特征参数范围内,取极端情况通过基态线路模型进行计算,得到10 kV配电线路的耐受渗透比。最终形成各类线路耐受渗透比推荐表,指导配电网的分布式电源规划。算例结果验证了该方法的有效性和正确性。

Distributed generation planning of 10 kV distribution network based on tolerant permeability ratio

Focused on the problem of complex modeling and solving process in Distributed Generation (DG) planning at present, the concept of DG tolerant permeability ratio in distribution network is proposed. The influence of characteristic parameters on tolerant permeability ratio is analyzed. A novel method of DG planning is put forward based on tolerant permeability ratio in 10 kV distribution network. Firstly, the 10 kV distribution lines are classified according to their own electrical characteristics. Secondly, the base-state models of each type of lines are established. Thirdly, the tolerance permeability ratio of 10 kV distribution lines in extreme parameter situation are calculated through base-state model, within the range of characteristic parameters among similar lines. Finally, the tolerance penetration ratio recommended tables of each type of lines are made to guide DG planning in distributed network. The validity and correctness of the proposed method are verified by the results of calculation case. This work is supported by National Natural Science Foundation of China (No. 51777077).