基于改进DRND模型配电网可靠性评估影响的研究

Research on the impact of reliability assessment of distribution network based on improved DRND model

为进一步提升进行配电网评估所得评估结果的可靠性,提出一种基于改进DRND模型的评估方法。其中,以降维解集模型作为电网可靠性评估的基础方法,通过对模型结构进行改进并结合重要抽样法,进一步提升评估效果的可靠性。仿真结果表明,与传统的蒙特卡洛模拟法相比,基于改进DRND模型的可靠性评估方法在进行电网可靠性评估时效率更高,同时所需的样本数量明显更少,将其应用于实际的电网系统的可靠性评估时能够取得更好的评估效果。上述结果表明,构建的基于改进DRND模型的配电网可靠性评估方法性能优秀,可应用于实际的电网可靠性评估场景中,可行性较高。

To further enhance the reliability of the evaluation results obtained from distribution network evaluation,an evaluation method based on an improved DRND model is proposed.Among them,the dimensionality reduction solution set model is used as the basic method for power grid reliability evaluation.By improving the model structure and combining with the importance sampling method,the reliability evaluation effect is further improved.The simulation results show that compared with the traditional Monte Carlo simulation method,the reliability evaluation method based on the improved DRND model is more efficient in conducting power grid reliability evaluation,and requires significantly fewer samples.Applying it to the reliability evaluation of actual power grid systems can achieve better evaluation results.The above results indicate that the constructed distribution network reliability evaluation method based on the improved DRND model has excellent performance and can be applied to practical power grid reliability evaluation scenarios,with high feasibility.