LED直流集中供电在隧道照明中的应用研究  

Research on the Application of LED DC Centralized Power Supply in Tunnel Lighting

作　　者：骆少卿 LUO Shaoqing(LEDLUCKY HOLDINGS Co.,Ltd.,Shenzhen 518118,China)

机构地区：[1]深圳福凯半导体技术股份有限公司,广东深圳518118

出　　处：《中国照明电器》2024年第10期35-37,共3页China Light & Lighting

摘　　要：隧道照明全天24 h工作,且总负荷较大,对灯具的能效和可靠性具有较高要求。高效能可降低隧道照明的用电负荷,减少隧道工程成本和维护成本。直流供电可省掉AC转DC的电路转换部分,显著提高供电效率。同时,直流供电的电路系统拓扑更简单,比交流供电系统的故障率和维护成本更低,系统可靠性更高,能更好地满足隧道照明的全天供电需求。在安全性上,直流比交流更安全。新能源通常为直流电,如太阳能等,同时直流供电也能更好地兼容新能源系统,不用经过“新能源-逆变交流-转换直流”过程,在节省系统成本的同时,也能进一步提升效率。此外,隧道照明通常还涉及应急照明需求,而直流供电可以无缝对接应急照明系统。Tunnel lighting works 24 hours a day,and the total load is large,which has higher requirements for the energy efficiency and reliability of lamps.The high energy efficiency can decrease the electrical load of tunnel lighting,and reduce the tunnel engineering cost and maintenance cost.DC power supply eliminates the circuit conversion part of AC to DC,which can significantly improve the power supply efficiency.The DC power supply circuit system topology is simpler,which failure rate and maintenance cost are lower than the AC power supply system,and the tunnel lighting system reliability is higher that can better meet the 24-hour power supply demand.In terms of security,DC is safer than AC.Since the new energy is usually direct current,such as solar energy,DC power supply can also be better compatible with the new energy system,without going through the process of new energy-inverter AC-DC conversion,saving system costs and further improving efficiency.Tunnel lighting is also usually related to the need for emergency lighting,and DC centralized power supply can seamlessly connect with emergency lighting systems(ELS).

关 键 词：高效节能 无频闪 可靠性 安全性 兼容新能源 

分 类 号：TM923[电气工程—电力电子与电力传动]