光伏高压直流供电在LED照明中的应用

Application of Photovoltaic High-Voltage DC Power Supply in LED Lighting

提出一种光伏离网发电系统与LED照明结合应用的方法,将光伏发电系统、240 V直流电源、蓄电池组等功能模块按照一定的配置要求组合形成光伏高压直流供电系统,直接用于LED照明灯具的供电。系统取消了传统光伏照明系统中的逆变环节,减少能源转换的效率损失,高电压的应用也降低了线路电能传输损耗;基于直流电的工作特性,采用高压直流供电可减少LED电源内电解电容等元器件的工作损耗,延长了LED照明灯具的使用寿命并可消除灯具频闪问题;本系统组成模块可根据实际需要灵活配置,是一种高效、稳定的光伏照明解决方案。

A method of combining off-grid photovoltaic power generation system with LED lighting is proposed.The photovoltaic power generation system,240 V DC power supply,battery pack and other functional modules are combined to form a photovoltaic high-voltage DC power supply system according to certain configuration requirements,which is directly used for the power supply of LED lighting fixtures.The system cancels the inverter link in the traditional photovoltaic lighting system,reduces the efficiency loss of energy conversion,and the application of high voltage also reduces the line power transmission loss.Based on the working characteristics of direct current,high-voltage DC power supply can reduce the working loss of LED power supply electrolytic capacitor and other components,extend the service life of LED lighting fixtures and eliminate the stroboscopic problem of lamps.The system component modules can be flexibly configured according to actual needs.It is an efficient and stable photovoltaic lighting solution.