超导储能装置在微网的布局研究

Allocation Research of SMES Units in Microgrid

研究了微网内超导储能装置安装地点的选取,从而有效地降低了有功功率网损。根据旋转坐标系下变流器的数学模型,通过变流器的输出电压在d-q轴分量的解耦,实现有功功率、无功功率的独立调节。以微网有功损耗为目标函数,分别建立基于灵敏度分析和遗传算法确定超导储能装置安装位置的数学模型。仿真结果表明,两种方法对于减少网络有功损耗都有显著的改善作用。

This paper presents how to determine the optimal allocation of superconducting magnetic energy storage（SMES） units in microgrid for the purpose of effective reduction of the active power loss.Both the active power and reactive power can be regulated independently through decoupling output voltage of converter in the d-q axis according to the mathematical model of the converter under rotating coordinate system.With the active loss of microgrid as the objective function,the mathematical models have been established based on the sensitivity analysis and genetic algo-rithm respectively in order to determine the optimal allocation of SMES units.Simulation results show that both of the proposed methods can help to reduce active power losses significantly.