交直流混合输电系统的无功优化

Reactive power optimization of hybrid AC/HVDC power system

提出了交直流混合系统的无功优化模型,优化控制变量不仅包含传统的交流部分的发电机无功输出、补偿电容器容量、变压器分接头,而且还引入直流部分换流器的控制电压、控制电流、控制功率以及换流变压器变比。模型运用PSO算法进行优化求解。引用IEEE中9节点算例表明该模型是正确的,该算法是收敛、有效的。

This paper presents a reactive power optimization model of hybrid AC/HVDC power system. The control variables not only contains the reactive power output of generators, compensating quantity of capacities and regulating quantity of transformer of the AC system, hut also contains the controlling voltage,current, power of the HVDC current-source converters and regulating quantity of the step-up transformers. The model applies PSO to deal with the optimization. The examples of 9 nodes system from IEEE show that the model is correct and the algorithm is convergent and effective.