含有载调压调容配变的城市配电网节能降损动态优化模型

Dynamic optimization model of energy-saving and loss reduction for urban distribution networks with on-load voltage and capacity regulating distribution transformers

首先分析了电能替代下城市配电网的负荷特征,并根据有载调压调容配变潮流计算等值电路推导有功损耗计算式;然后以全网电能损耗最小为目标函数,提出了一种含有载调压调容配变的配电网节能降损动态优化模型,并采用并行协同进化算法进行求解,获得有载调压调容配变等设备动作方案。最后,通过某实际55节点配电网的仿真分析,验证了所建模型的有效性。

The load characteristics of urban distribution network under electric energy replacement are ana?lyzed,and the active loss calculation formula is deduced according to the power flow calculation equivalent circuit of on-load voltage and capacity regulating distribution transformers.Then taking the minimum power loss of the whole network as the objective function,a dynamic optimization model of energy-saving and loss reduction for urban distribution networks with on-load voltage and capacity regulating distribution transformers is proposed,which is solved by the parallel cooperative co-evolutionary differential evolution algorithm to obtain the action schemes of equipment such as on-load voltage and capacity regulating distribution transformers.The effectiveness of the proposed model is verified by simulation analysis of a practical 55-bus distribution network.