基于等电流相位法的单相干式空心电抗器设计

摘要

Excessive power loss of single-phase dry-type air-core reactor would reduce service life of the reactor and influence the operation of the grid. In order to reduce power loss of the reactor, a new design method based on current phase equality is proposed. According to circuit model of the reactor, the design method is demonstrated and the formula for calculating the number of layer turns is derived. The simulation results shows that this method can not only lower power loss of the reactor, but also can make the AC and DC current distributions of each layer consistent as well as the AC and DC temperature distributions of each package consistent.%单相干式空心电抗器损耗过大会减少电抗器的使用寿命以及影响电网的正常运行.为了降低电抗器的损耗,本文提出等电流相位法.基于电抗器的电路模型,对等电流相位法进行了论证,并推导了相应的层匝数设计计算公式.仿真结果表明:该方法不仅可减少电抗器的损耗,而且可使各层交流、直流电流分布一致,各包封交流、直流温升分布一致.