国内外全直流供电建筑案例对比分析

Comparative Analysis of all DC Power Supply Buildings atHome and Abroad

分析了国内外全直流供电建筑的相关信息,对比发现国外直流建筑案例建成时间较早、规模较小,国内直流建筑案例建成时间较晚,实际应用建筑居多,规模较大。国内外全直流供电建筑的电力系统架构大同小异,均采用2~3级电压等级直流母线,高电压等级电压为380 V左右,低电压等级电压为48 V左右。全直流供电建筑的案例表明直流供电技术已经成熟稳定,具有替代交流供电成为建筑首选电力系统的潜力。

The relevant information of all DC power supply buildings at home and abroad was analyzed.It is found that foreign DC building cases were built earlier and of smaller scale.In China,DC building cases were built relatively late,and most of them are applied in practice.The power system architecture of all DC power supply buildings at home and abroad is similar,which adopts 2~3 voltage level DC bus.The high voltage level voltage is about 380 V,the low voltage level voltage is about 48 V.The cases of all-DC power supply building show that DC power supply technology has been mature and stable.The DC power supply technology can replace AC power supply and become the first choice of building power.