基于电磁-热-流耦合场分析法计算光伏分裂变压器温度场
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摘要
以SCB10-GF-1260 kVA双分裂变压器为研究对象,采用电磁-热-流耦合场分析方法,考虑空气流场的流固耦合模型,计算分析了光伏分裂变压器全穿越运行状态下的三维温度场,给出了分裂变压器内部温度分布规律和最大温度点位置。计算结果表明:光伏用干式分裂变压器底部到顶部的温度分布呈现出低-高-低的趋势,绕组最热点位于低压绕组轴向约88%处,并通过试验验证了仿真方法的正确性。
Electromagnetic-heat-flow coupling field analysis method was adopted and the air flow field of the fluid-structure coupling model was considered to calculate the three dimensional temperature field of the SCFB10-1250 kVA photovoltaic transformer with double split-windings.The internal temperature distribution and the maximum temperature point location were given.The results show that the temperature distribution from the bottom to top of the dry split transformer is low-high-low,and the hottest point is located at about 88% of the position of low voltage winding axis direction.
Electromagnetic-heat-flow coupling field analysis method was adopted and the air flow field of the fluid-structure coupling model was considered to calculate the three dimensional temperature field of the SCFB10-1250 kVA photovoltaic transformer with double split-windings.The internal temperature distribution and the maximum temperature point location were given.The results show that the temperature distribution from the bottom to top of the dry split transformer is low-high-low,and the hottest point is located at about 88% of the position of low voltage winding axis direction.
引文
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