介绍一种三相潮流程序中的变压器模型的实现方法.其思路是将变压器分左右两块实现:左侧部分包含一次侧的联结组别和三相的变比值,右侧部分包含二次侧联结组别和变压器阻抗值,并分别以子程序实现.计算中根据实际变压器类型调用相应子程序,通过组合得到完整的变压器模型.该方法思路简洁,易于编程实现,能方便地实现多种不同接法的变压器模型,可以很好地应用于三相潮流程序.通过一个简单算例对模型的有效性进行验证和分析.%Implementation of three-phase transformer models in a three-phase load flow program was studied. The transformer was divided into two parts. One part includes the primary connection and ratios of three-phase turns, the other contains the secondary connection and transformer impedance values. The two parts were implemented by two independent subroutines. According to the actual types of transformers, the corresponding subroutines were combined to get complete transformer models. The proposed method is simple and clear and can be implemented easily in programming with different transformer connection models. It is also suitable for three-phase load flow calculation. The validity of the proposed method was analyzed and verified by an example.
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