采用两种外部等值技术的多区域无功优化并行算法比较

Comparison of multi-area reactive power optimization parallel algorithms using two kinds of external equivalent technique

在介绍Ward和REI等值分区的基础上,对采用Ward等值和REI等值技术的多区域电力系统无功优化并行算法求解思路进行详细分析说明,对两种等值并行算法所采用的外部等值网络修正和外层协调计算方法进行了总结。通过采用主从型并行计算模式,运用Matlab并行计算平台和工作站机群型硬件平台分别实现采用两种等值技术的多区域无功优化并行计算。以IEEE39节点系统、某538节点实际系统和某695节点实际系统作为算例,通过与集中优化方法进行比较,对两种等值并行算法的计算性能进行综合比较和分析。

On the basis of introducing Ward and REI equivalent partition processes, this paper analyses and describes the solving ideas of multi-area reactive power optimization parallel algorithms using Ward and REI equivalent technique in detail, and the extemal equivalent network correction methods and outer coordination calculations used in two kinds of equivalent parallel algorithm are concluded and summarized. By using master-slave parallel calculation mode, the multi-area reactive power optimization parallel calculations are implemented based on Matlab parallel computing platform and COW/Cluster hardware platform. In comparison with the centralized optimization algorithm, the computing properties of two kinds of equivalent algorithm proposed have been compared and analyzed comprehensively by testing results on IEEE 39-bus system, a 538-bus practical system and a 695-bus practical system.