直流地域并网型太阳能光伏系统的研究

THE STUDY ON DC COMMUNITY GRID-CONNECTED PV SYSTEM

提出直流地域并网型太阳能光伏系统，引入直流供电系统，直流地域配电线以及带蓄电池屋顶光伏系统的概念，并就地域内电能利用率、降低蓄电池容量以及CO2减排效果等与目前太阳能光伏系统进行比较研究，在本研究设定条件下，电能利用率可达约32％，蓄电池容量可减少约40％～80％，CO2减排效果最大可达30％。

In this paper, we have proposed the DC community grid-connected PV system with power storage systems. The utilization ratio of electric energy, the battery capacity and the effect of carbon-dioxide emissions reduction are analyzed by simulating method. The results showed that the utilization radio of electric energy is about 32%, the battery capacity is decreased to 40%-80%, CO2 emissions reduction is about 30% in the simulating conditions.