摘要
为了满足污水处理厂白天用电量,在污水处理厂内构建了分布式光伏发电系统,通过建立数学模型,计算其装机容量。由于光照强度和环境温度随时变化,本文划分春夏秋冬四个典型日进行光伏出力计算,进而得出全天各时段单个光伏电池的发电量,一天中发电量较大的时段集中在10:00–14:00,将该时段的光伏发电量与污水处理厂对应时段的用电量相比,计算出所需光伏电池个数。通过对不同光伏电池个数情况下春夏秋冬四个典型日的自用率相比较发现,当电池数量分别为5175个、4912个、4891个时,自用率在90%~94%之间,此时光伏发电量基本满足春季、夏季10:00–14:00全部用电量以及秋冬季大部分用电量,从而确定污水处理厂分布式光伏最佳装机容量为1272~1346 k Wp。
In order to satisfy the sewage treatment plant power consumption during the day,a distributed photovoltaicpower generation system was constructed in the sewage treatment plant,and the installed capacity was calculated by theestablished mathematical model.As the light intensity and ambient temperature change with time,four typical days wereselected to calculate photovoltaic output,including spring typical day,summer typical day,autumn typical day and wintertypical day.The generation capacity of a single photovoltaic cell was work out in each period of a day.Generating lagerperiod was from10AM to14PM in a day,comparing with sewage treatment plant power consumption in thecorresponding to figure out the required number of photovoltaic cells.And evaluated rates for private use in typical daysfound that private use rates were90%~94%when cell numbers were5175,4912and4891.The photovoltaic powergeneration basically met the power consumption from10AM to14PM during spring and summer,mostly during fall andwinter.Finally the best installed capacity of the distributed photovoltaic in sewage treatment plant was determined,therange was1272~1346kWp.
作者
孙振宇
沈明忠
SUN Zhen-yu;SHEN Ming-zhong(China Huadian Engineering Co., Ltd, Beijing 100160, China;Huadian Water Holding Co., Ltd, Beijing 100160, China)
出处
《新能源进展》
2017年第2期151-156,共6页
Advances in New and Renewable Energy
关键词
分布式光伏
光伏出力
污水处理厂
装机容量
distributed photovoltaic
photovoltaic output
sewage treatment plant
the installed capacity
