三相不平衡度算法的比较研究

  目的  船舶照明配电三相平衡设计是照明系统设计中的重要工作，为提高三相平衡设计的效率和精度，提出基于改进模拟退火（SA）算法的三相平衡优化设计方法。  方法  首先，归纳下级照明分配电箱和上级配电板这2个级别的三相平衡设计最优化模型；然后，对模拟退火算法产生新解的过程进行改进，进而将其用于求解船舶照明分配电箱和配电板的三相平衡设计；最后，采用Matlab平台进行实船验证。  结果  结果表明，采用该方法可以在1 s以内完成4个分配电箱及上级配电板的三相平衡优化设计。  结论  所提方法可用于代替传统照明配电设计中负载三相分配的繁重工作，提高照明系统设计效率。

Comparative study of three-phase unbalance algorithm

  Objectives  The three-phase balance optimization is of importance to the power distribution of ship lighting system design. For enhancing the design efficiency and accuracy, an optimal approach is presented based on a simulated annealing (SA) algorithm.  Methods  Firstly, two optimal models are established for the upper-level distribution board and lower-level distribution box, respectively. Then, the SA algorithm is improved and applied to solve the problem of three-phase balance optimal design. Ultimately, a real case is tested based on the Matlab platform.  Results  The test shows the presented approach can solve the three-phase balance of four power distribution boxes and one upper-level distribution board within one second.   Conclusions  The presented approach can help relieve the excessive burden of three-phase load distribution for the lighting system by traditional design method and improve the design efficiency.