考虑分布式再生能源和储能的主动配电网可靠性评估

A Ｒeliability Evaluation Method of Active Distribution Network Considering Distributed Generations and Batteries

摘要:

随着主动配电网技术的逐步发展和应用，针对主动配电网的各项评估技术也需要进一步研究。由于主动配 电网在网络结构、潮流流向等方面与传统配电网有很大区别，因此针对主动配电网的评估方法也与传统配电网不同， 提出了一种考虑分布式再生能源和储能的主动配电网可靠性评估方法。首先运用蒙特卡洛模拟法进行系统状态选 择，再基于不同网络类型，采用改进的前推回代潮流计算方法进行潮流计算与潮流平衡调整，进而计算各项评估指 标，获取综合评估值。通过对 9 个方案进行可靠性评估，验证了所提方法的有效性。

Abstract:

As the development of grid technology，a further study of evaluation techniques for active distribution network is also necessary． Evaluation methods of active distribution network are not similar to that of the traditional one because of their great differences，such as network structure，trend of flow，etc． A reliability evaluation method for active distribution network considering distributed generations and batteries is proposed． Firstly，a Monte Carlo simulation is implemented to obtain system states． Then，the power flow results obtained by an improved back /forward power flow calculation method is used to calculated the index values，and a comprehensive evaluation index value is then computed． Finally，the effectiveness of the proposed method is proved by nine cases．