【摘 要】
：
YNvd接线变压器是应用于电气化铁路的一种新型三相一两相平衡变压器.为了实现其理想的三相一两相平衡变换,从磁势平衡方程、绕组接线方程、电压传递方程出发分析了YNvd接线变
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YNvd接线变压器是应用于电气化铁路的一种新型三相一两相平衡变压器.为了实现其理想的三相一两相平衡变换,从磁势平衡方程、绕组接线方程、电压传递方程出发分析了YNvd接线变压器的运行特性,采用绕组间短路阻抗和等值阻抗表达阻抗匹配关系.并给出了YNvd接线变压器的二次侧两相端口的电压输出方程、两相等值电路和相坐标下的节点导纳矩阵,以便进行电力系统和牵引网接口有关问题的分析计算.分析表明,为了使YNvd接线变压器从原边看入的三相阻抗相等,要求次边端口变压器等值阻抗相等.最后,搭建了YNvd接线平衡变压器仿真模犁,验证了相关的电气特性.
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