求解交直流互联电网多目标无功优化问题的INNC法

发布时间：2018-06-18 23:17

本文选题：无功优化 + 交直流互联电网　；参考：《中国电机工程学报》2014年07期

【摘要】：以交直流互联系统有功损耗和所有关键节点电压偏差平方和最小化为目标,建立交直流互联系统的多目标无功优化模型,并提出一种求其帕累托最优解的改进规格化法平面约束法。该算法针对帕累托前沿上各点的切线与乌托邦线夹角不同,对规格化法平面约束法进行改进,即将帕累托前沿按照一定规则分割成4段,每段对应1个子乌托邦线,从而将原多目标优化问题分解为4组多目标优化问题。再对每个子乌托邦线进行等距离分割处理,每组多目标优化问题可转化为求解一系列单目标优化问题。对南方电网交直流765节点等值系统的计算表明,所提出的算法能够有效求解实际交直流大电网多目标优化问题,且所求得的最优解集在帕累托前沿上分布更均匀。
[Abstract]:The multi-objective reactive power optimization model of AC / DC interconnection system is established with the goal of minimizing the sum of the square of active power loss and voltage deviation of all key nodes in AC / DC interconnected systems. An improved canonical plane constraint method for finding the Pareto optimal solution is presented. Aiming at the difference between the tangent line of each point on the Pareto front and the angle between the Utopian line, this algorithm improves the normalized plane constraint method, that is, the Pareto front is divided into 4 segments according to certain rules, each segment corresponds to a Utopian line. The original multi-objective optimization problem is decomposed into four groups of multi-objective optimization problems. Then each sub-Utopian line is segmented at the same distance and each group of multi-objective optimization problems can be transformed into a series of single-objective optimization problems. The calculation of the AC / DC equivalent system of Southern Power Grid shows that the proposed algorithm can effectively solve the multi-objective optimization problem in practical large AC / DC power systems, and the optimal solution set is more evenly distributed on the Pareto front.
【作者单位】：华南理工大学电力学院;
【基金】：国家863高技术研究发展计划项目(2012AA050209) 国家自然科学基金项目(51277078)~~
【分类号】：TM714.3

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