励磁功率柜散热设计

摘要

This paper introduces the guidelines of thermal design of rectifiers for excitation system, and shows the principle of calculating power losses and temperature rise of thyristor. The main indexes should be considered when selecting heatsink and fan. The quantitative analysis of the altitude effect on the excitation has also been given.%本文阐述了励磁功率柜强迫风冷散热的设计原则,给出了可控硅功耗和温升的计算公式,概述了散热器和风机选型要考虑的主要指标,海拔高度对散热的影响也给予了定量的分析.