基于图形操作的分区无功优化方法

Method of Partition Reactive Power Optimization Based on Graphics Operation

针对当前电网规模大、在线无功优化计算困难的实际情况,提出了一种基于图形操作的分区无功优化方法。该方法可以在系统接线图上通过点图操作实现任意分区,然后对指定区域进行无功优化。详细地介绍了该方法的实现过程,包括选择分区、拓扑分析、边界等值和优化算法等各个环节,由于降低了待求网络的求解规模,该方法大大提高了无功优化的计算速度。该方法目前已经应用到甘肃电网无功优化当中,在改善系统电压质量、降低有功网损等方面取得了良好的实际应用效果。

In view of the large scale of the current grid and difficult calculation of on-line reactive power optimization, this paper presents a method of partition reactive power optimization based on graphics operation. Arbitrary partition can be realized by graphics operation in the system wiring diagram in this method, then to optimize the reactive power of designated area. The realization process of this method is introduced in detail in the paper, inclu- ding partition, topology analysis, boundary equivalence and optimization algorithms, etc. Due to the reduction of the network solving scale, this method greatly improves the calculation speed of reactive power optimization. The method has been applied to the reactive power optimization in Gansu power grid and achieved good practical results in improving voltage quality of the system, reducing active power loss.