新型单相IGBT机车空调逆变电源

A novel single phase IGBT inverter power supply for locomotive air conditioner

针对内燃机车司机室使用单相空调，设计研制了１１０Ｖ／２２０Ｖ变换用ＩＧＢＴ单相逆变电源。该电源由ＰＷＭ高频升压斩波器及数字化控制ＳＰＷＭ逆变器组成，具有ＩＧＢＴ多重保护及机车抗ＥＭＩ特殊设计。试验结果表明：该电源能长期可靠地为２．２ｋＷ单相空调供电，具有６ｋＶＡ（５００ｍｓ）瞬时起动功率容量。

For single phase air conditioner in diesel locomotive driver's cab,a IGBT inverter power supply is developed to convert 110 V DC into 220 V AC power.It consists of high frequency PWM boost chopper and digitalized SPWM inverter.It features IGBT multiple protection and special design for the protection of locomotive from EMI.Experiments show that the power supply can drive the rated 2.2 kW single phase air conditioner reliably for a long time,with a transient starting capacity of 6 kVA(500 ms).