污水处理厂分布式光伏的构建及优化
收稿日期: 2017-01-17
修回日期: 2017-03-06
网络出版日期: 2017-04-28
Constructing and Optimizing Distributed Photovoltaic in Sewage Treatment Plant
Received date: 2017-01-17
Revised date: 2017-03-06
Online published: 2017-04-28
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 kWp。
孙振宇 , 沈明忠 . 污水处理厂分布式光伏的构建及优化[J]. 新能源进展, 2017 , 5(2) : 151 -156 . DOI: 10.3969/j.issn.2095-560X.2017.02.012
In order to satisfy the sewage treatment plant power consumption during the day, a distributed photovoltaic power generation system was constructed in the sewage treatment plant, and the installed capacity was calculated by the established mathematical model. As the light intensity and ambient temperature change with time, four typical days were selected to calculate photovoltaic output, including spring typical day, summer typical day, autumn typical day and winter typical day. The generation capacity of a single photovoltaic cell was work out in each period of a day. Generating lager period was from 10 AM to14 PM in a day, comparing with sewage treatment plant power consumption in the corresponding to figure out the required number of photovoltaic cells. And evaluated rates for private use in typical days found that private use rates were 90% ~ 94% when cell numbers were 5175, 4912 and 4891. The photovoltaic power generation basically met the power consumption from 10 AM to 14 PM during spring and summer, mostly during fall and winter. Finally the best installed capacity of the distributed photovoltaic in sewage treatment plant was determined, the range was 1272 ~ 1346 kWp.
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