区域太阳能供热集热场输配流量与光伏同频控制策略研究  

CO-FREQUENCY CONTROL STRATEGY OF TRANSMISSION AND DISTRIBUTION FLOW OF SOLAR COLLEECTOR FIELD AND PHOTOVOLTAIC IN DISTRICT SOLAR HEATING SYSTEM

作　　者：张睿超 王登甲[1] 焦青太 万航 刘轩 Zhang Ruichao;Wang Dengjia;Jiao Qingtai;Wan Hang;Liu Xuan(School of Building Services Science and Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;Department of Architecture and Civil Engineering,City University of Hong Kong,Hong Kong 999077,China;Sunrain Group Co.,Ltd.,Lianyungang 222000,China;Northwest Engineering Corporation Limited,Xi'an 710055,China)

机构地区：[1]西安建筑科技大学建筑设备科学与工程学院,西安710055 [2]香港城市大学建筑与土木工程学院,中国香港999077 [3]日出东方控股股份有限公司,连云港222000 [4]中国电建集团西北勘测设计研究院有限公司,西安710055

出　　处：《太阳能学报》2024年第12期165-172,共8页Acta Energiae Solaris Sinica

基　　金：“十四五”国家重点研发计划(2022YFC3802705);西安建筑科技大学优秀博士培育基金(2021XYBPY007)。

摘　　要：探讨性提出一种基于光伏发电功率响应太阳辐照度变化,以光伏系统实时发电功率为基准驱动太阳能集热场水泵运行,进而控制输配流量和有效集热功率的控制策略。对所提出的集热场流量控制策略的节能运行效果进行计算分析,并与传统定流量控制和定出口温度控制方法进行对比。结果表明,所提控制方式具有最佳的经济与热力性能,其集热场单位产热量成本η_(UHC)为0.0405元/kWh,而定流量控制与定出口温度控制方式的η_(UHC)分别为0.0455元/kWh与0.0446元/kWh;其供暖季热效率可达52.44%,高于定流量控制方式的52.43%与定出口温度控制方式的48.78%。This paper proposes a new control strategy based on photovoltaic power generation response to solar irradiance changes,and taking the real-time power generation of the photovoltaic system as the standard to drives the operation of the water pump in the SCF,then controlling the transmission and distribution flow and effective heat collection.The energy-saving operation effect of the proposed SCF flow control strategy is obtained through the calculation and analysis,and compared with the traditional constant flow control and constant outlet temperature control method.The results show that the proposed flow control strategy of the solar collector field has the best economic and thermal performance.Under the proposed control method,the unit heat cost(η_(UHC))of the solar collector field can reach 0.0405¥/kWh,and the constant flow and constant outlet temperature control methods are 0.0455¥/kWh and 0.0446¥/kWh respectively.In addition,the thermal efficiency in the heating season can reach 52.44%,which is higher than 52.43%of the constant flow control method and 48.78%of the constant collector outlet temperature control method.

关 键 词：太阳能集热器 流量控制 光伏系统 经济性能 热力性能 

分 类 号：TK01[动力工程及工程热物理]