面向分布式能源接入的低压配电网无功补偿优化方法

Reactive Power Compensation Optimization Method for Low-Voltage Distribution Network for Distributed Energy

为提高低压配电网无功补偿的效果,提出了面向分布式能源接入的低压配电网无功补偿优化方法。计算分布式能源接入时配电网的无功功率损耗,确定配电网侧电压与负荷并网电压之间的电压差,获取无功补偿优化指标,制定无功补偿优化约束条件;利用确定的优化指标和约束条件,建立低压配电网无功补偿优化模型,实现低压配电网的无功补偿优化。实验结果表明,使用设计方法开展低压配电网无功补偿优化,配电网节点功率损耗更接近配电网期望功率损耗值,配电网节点电压幅值均有所提高,无功补偿效果较好。

In order to improve the effect of reactive power compensation in low-voltage distribution networks,a low-voltage distribution network reactive power compensation optimization method for distributed energy access is proposed.The reactive power loss of the distribution network during distributed energy access is calculated,the voltage difference between the distribution network side voltage and the load grid-connected voltage is determined,the reactive power compensation optimization index is obtained,and the reactive power compensation optimization constraints are formulated;using the determined optimization indexes and constraints,a reactive power compensation optimization model of the LV distribution network is established,and the optimization of reactive power compensation in the LV distribution network is realized.The experimental results show that using the design method to carry out the optimization of reactive power compensation in the low-voltage distribution network,the node power loss of the distribution network is closer to the desired power loss value of the distribution network,and the node voltage amplitude of the distribution network is improved,and the effect of reactive power compensation is better.