摘要
结合天津地区某小区屋顶分布式光伏发电系统,对其运行状态进行实时测试和分析。从发电效率、累计发电量、逆变器效率等指标评价实际工程的运行效果。针对分布式发电的特点,比较售楼处4个发电单元的运行情况,验证了发电单元朝向正南、倾角为当地纬度安装才有最佳的运行效果。并网逆变器能在阵列输出功率较小时达到较高的效率,且能量损失小。
Combined with a rooftop distributed PV system of a district in Tianjin area, its running state was real-time tested and analyzed. Operation effect of practical engineering from power generation efficiency, total generating capacity and inverter efficiency was evaluated. According to the characteristics of distributed PV system, the running stations of four generation unit were analyzed. The system has an optimal running state when generation unit toward the south and is installed at the latitude angle is verified. Grid inverter can achieve a high efficiency when the array output power is low and has a small energy loss.
出处
《建筑热能通风空调》
2014年第5期71-73,104,共4页
Building Energy & Environment
关键词
分布式光伏系统
发电效率
并网逆变器
distributed PV system, generation efficiency, grid inverter
