摘要
阻抗匹配平衡变压器是在伍德桥牵引变压器的基础上发展的一种新型变压器。本文对阻抗匹配平衡变压器两相系统的负序电流和谐波含量进行了分析计算,并讨论了牵引负荷变化对三相系统的影响。 为了满足牵引变电所的要求,本文还提出将阻抗匹配平衡变压器的低压绕组按阻抗匹配关系引出三相对称电压的方法,用此方法可对地方负荷和本变电所供电。在电压抽头处并入适当的电容器后还可起无功补偿和滤波作用。
Impedance-matching balance transformer is an new type transformer to achieve balance transformation of current between the three-phase system and the two-phase system. This paper analyzes and calculates the negative current and harmonics of the two-phase system of the impedance-matching balance transformer, discusses the influence of electrical traction on operation of the three-phase system.A method of obtaining three-phase symmetric voltage from the low voltage principle has been presented. Using the method the local matching winding of the transformer according to impedance electrical load and the substation's load can be supplied. If a proper amaunt capacitors are connected to the transformer tap, the method can also provide for functions of reactive compensation and filter.
出处
《电网技术》
EI
CSCD
北大核心
1989年第1期26-32,25,共8页
Power System Technology
