摘要
针对目前城市电网小负荷时期发生功率因数超标和无功倒送问题,提出了无功补偿双层优化模型,上层以网损最小为优化目标,下层保证电网潮流正常安全稳定运行,利用混合蛙跳算法得到优化方案。进一步使用修改后的IEEE-33节点系统的网架结构,对无功补偿双层优化模型及相关算法进行了仿真试验,验证了混合蛙跳算法的可行性。验证结果表明无功补偿双层优化模型在降低网损、提升节点电压、解决无功倒送问题方面具有一定的效果。
Aiming at the problem of power factor exceeding the standard and reactive power reversal in power grid during the small load period,this paper proposed a two-layer optimization model of reactive power compensation.The upper layer takes the minimum network loss as the optimization target,and the lower layer ensures the normal and safe operation of the power grid.The hybrid frog leaping algorithm is used to solve and obtain an optimization scheme.Furthermore,the modified IEEE-33 node system grid structure is used to do the simulation experiment of reactive power compensation double-layer optimization model and related algorithms,which verifies the feasibility of the hybrid leapfrog algorithm,and shows that the reactive power compensation double-layer optimization model has certain effects in reducing network loss,increasing node voltage,and solving reactive power reversal problems.
引文
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