配电网安全域的二维图谱

提出了配电网安全域(DSSR)图谱的概念,并绘制了无源配电网和2种典型有源配电网的DSSR二维图谱。首先,给出了DSSR图谱的定义和绘制方法。DSSR图谱是某一类型配电网所有可能的安全域二维图像的集合,包含了域的象限、形状等图像特征。然后,针对无源配电网、高渗供电网(容量渗透率约为40%)和自给网(容量渗透率约为100%),分别绘制其N-0(正常运行)和N-1的2套DSSR图谱。最后,对比分析了不同渗透率下的DSSR图谱变化规律。DSSR图谱的建立使得DSSR二维图像研究更具系统性,有助于直观理解配电网安全运行范围的几何特征。

Two-dimensional Map for Distribution Network Security Region

The concept of distribution system security region(DSSR)map is proposed, and the two-dimensional DSSR map is drawn for the traditional distribution network and two typical types of active distribution network. Firstly, the definition and drawing method of DSSR map are presented. The DSSR map is a set of all possible two-dimensional DSSR images for a certain type of distribution network, including image features of the security region such as quadrants and shapes. Then, DSSR maps for the traditional distribution network, the supply network with high penetration(capacity penetration is about 40%)and the balance network with very high penetration(capacity penetration is about 100%)are drawn respectively. Each map contains two sets: one is the N-0(normal operation state)map and the other is the N-1 map. Finally, the DSSR maps at different penetration levels are compared and some rules are obtained. The DSSR map organizes two-dimensional DSSR images systematically, which helps people to intuitively understand the security region characteristics of different types of distribution network.