中文摘要：

基于所提出的决策点概念,采用虚拟仪器技术开发了一种新的、用于决策两台并列配置变压器动态经济运行方式的系统.通过准确的变压器损耗曲线和给定时段内的负荷预测曲线获得决策点及其相关信息并进行分析,得出变压器在决策点所应采取的最优投切策略.对不同的负荷预测曲线和变压器参数进行了仿真计算,结果表明：系统设计合理,可以实现变压器动态经济运行的目的.

英文摘要：

Power loss of the distribution transformers is an important part of entire power grid loss,so the correct choice of transformers’ operation mode can reduce the power loss of the transformers significantly.In this paper,virtual instrument is used to design a kind of novel decision-making system for dynamic economic operation of two transformers in parallel based on a proposed concept ＂decision point＂.Decision points and related information can be obtained by applying the accurate loss curve of transformers and load prediction curve.After analyzing the information about decision points,the optimal switching strategy can be determined.The different functions of load prediction curve and the parameters of transformers are calculated.The results show that the decision-making system is very suitable to determine dynamic economic operation of transformers.