基于分布式电源优化的氧化铝厂配电系统降损方法

Loss reduction method of power distribution system in alumina refinery based on distributed generation optimization

为了降低氧化铝厂配电系统有功、无功功率损耗,该文提出了借助分布式电源优化配置的降损方法。给出了配电系统中线路和变压器的有功功率损耗、无功功率损耗以及电压降落的计算模型,分析了功率和电压分布。建立了优化配置分布式电源的数学模型,并给出了利用粒子群算法求解该模型的优化步骤。结合氧化铝厂的实际配电系统,验证了该文提出的方法。结果表明,该文提出的方法可以有效地降低氧化铝厂配电系统有功、无功功率损耗,提高高压变压器的功率因数,并且可以提升10 kV电网节点电压水平。

In order to reduce the active and reactive power loss in the power distribution system of alumina refinery,this paper proposed a loss reduction method based on the optimal configuration of distributed generation.The models were presented for calculating the active power loss,reactive power loss and voltage drop of lines and transformers in power distribution systems,and the power and voltage distributions were analyzed as well.A mathematical model was established for optimal configuration of distributed generation,and the optimization steps were given for solving the model based on particle swarm optimization algorithm.Combined with the actual power distribution system of the alumina refinery,the method proposed in this paper was verified.The results show that the method proposed in this paper can effectively reduce the active and reactive power losses of the power distribution system in the alumina refinery,improve the power factor of the high-voltage transformer,and improve the node voltage level of the 10 kV power grid.