考虑平衡节点的网损分摊

Power Loss Allocation Considering Slack Bus

合理的电网网损分摊对于进一步完善电力市场具有重要的作用。通过对当前广泛使用的灵敏度算法的改进,提出一种考虑平衡节点在内的灵敏度网损分摊算法,并以IEEE-57节点系统为例,将该方法与电流叠加法二者的计算结果进行比较分析。结果表明,当对地导纳参数发生变化时,该方法计算得到的网损分摊值偏差变化较大,从而得出灵敏度算法在实际应用中欠合理的结论。

Allocation of power loss takes an important role to further improve the electricity market. As the improvement of widely used algorithm based on sensitivity theory, the paper presents a creative way by taking the slack bus into consderation. Meanwhile the method is compared with the current superposition method based on the node system IEEE-57. The result shows that when parameters in node admittance changes, the datum of allocation of power loss changes a lot in this new method. Thus the conclusion is that the algorithm based on sensitivity theory is unreasonable in practical application.