摘要
Abstract
Introducing the power supply system and energy storage system of photovoltaic buildings,and analyzing the operating data of photovoltaic buildings using photovoltaic DC power supply on typical operating days.The results show that during typical daily periods,according to the distribution of local peak and valley electricity prices,municipal AC/DC power supply is used from 23:00 to 7:00 the next day.When the photovoltaic power is insufficient to meet the load demand,the battery can supplement the insufficient part.16:After 00,the photovoltaic supply continues to be lower than the load power,and the battery remains in a discharged state until it reaches the lower limit of charge,after which it switches to using municipal power supply.On that operating day,the maximum power generation output was achieved and on-site consumption was realized.Applying energy storage and low-voltage direct current to photovoltaic buildings can achieve various benefits,including effectively suppressing power fluctuations in load and generation,achieving energy time shift,peak shaving and valley filling,and on-site consumption,thereby improving the utilization efficiency of electrical energy.关键词
光电建筑/储能蓄电池/电化学储能/光伏供电Key words
optoelectronic building/energy storage batteries/electrochemical energy storage/photovoltaic power supply分类
能源科技
