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

张睿超; 王登甲; 焦青太; 万航; 刘轩

doi:10.19912/j.0254-0096.tynxb.2023-1181

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (12) : 165-172. DOI: 10.19912/j.0254-0096.tynxb.2023-1181

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

张睿超^1,2, 王登甲¹, 焦青太³, 万航², 刘轩⁴

作者信息 +

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

Zhang Ruichao^1,2, Wang Dengjia¹, Jiao Qingtai³, Wan Hang², Liu Xuan⁴

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文章历史 +

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%。

Abstract

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.

导出引用

张睿超, 王登甲, 焦青太, 万航, 刘轩. 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[J]. 太阳能学报. 2024, 45(12): 165-172 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1181

Zhang Ruichao, Wang Dengjia, Jiao Qingtai, Wan Hang, Liu Xuan. CO-FREQUENCY CONTROL STRATEGY OF TRANSMISSION AND DISTRIBUTION FLOW OF SOLAR COLLEECTOR FIELD AND PHOTOVOLTAIC IN DISTRICT SOLAR HEATING SYSTEM[J]. Acta Energiae Solaris Sinica. 2024, 45(12): 165-172 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1181

中图分类号： TK01

参考文献

[1] 张睿超, 王登甲, 刘艳峰, 等. 西藏高原离网光伏供暖系统容量配置优化研究[J]. 西安建筑科技大学学报(自然科学版), 2021, 2021, 53(6): 828-834, 788.
ZHANG R C, WANG D J, LIU Y F, et al.The system form and case analysis of off-grid photovoltaic heating in Tibet Plateau[J]. Journal of Xi'an University of Architecture & Technology(natural science edition), 2021, 53(6): 828-834, 788.
[2] 马文生, 刘景东, 郭强, 等. 高寒地区主被动式太阳能暖房热性能实测研究[J]. 太阳能学报, 2020, 41(11): 64-70.
MA W S, LIU J D, GUO Q, et al.Experimental study on indoor thermal performance of combined active and passive solar heating house in alpine region[J]. Acta energiae solaris sinica, 2020, 41(11): 64-70.
[3] TSCHOPP D, TIAN Z Y, BERBERICH M, et al.Large-scale solar thermal systems in leading countries: a review and comparative study of Denmark, China, Germany and Austria[J]. Applied energy, 2020, 270: 114997.
[4] ZHOU X P.Thermal performance of curved-slope solar collector[J]. International journal of heat and mass transfer, 2020, 150: 119295.
[5] SHRESTHA N L, FROTSCHER O, URBANECK T, et al.Thermal and hydraulic investigation of large-scale solar collector field[J]. Energy procedia, 2018, 149: 605-614.
[6] BAVA F, DRAGSTED J, FURBO S.A numerical model to evaluate the flow distribution in a large solar collector field[J]. Solar energy, 2017, 143: 31-42.
[7] WANG D J, ZHANG R C, LIU Y F, et al.Optimization of the flow resistance characteristics of the direct return flat plate solar collector field[J]. Solar energy, 2021, 215: 388-402.
[8] 赵静, 王智平, 王克振, 等. 非均匀流量分布下太阳能平板集热器的热性能分析模型[J]. 东南大学学报(自然科学版), 2015, 45(4): 714-719.
ZHAO J, WANG Z P, WANG K Z, et al.Thermal performance analysis model of solar flat plate collector under nonuniform fluid flow distribution[J]. Journal of Southeast University(natural science edition), 2015, 45(4): 714-719.
[9] 路阳, 刘建波, 王克振, 等. 流量对平板太阳能集热器热性能的影响[J]. 兰州理工大学学报, 2015, 41(4): 60-64.
LU Y, LIU J B, WANG K Z, et al.Effect of flow rate on thermal performance of flat-plate solar energy collector[J]. Journal of Lanzhou University of Technology, 2015, 41(4): 60-64.
[10] 郭锦伟, 谭心, 虞启辉, 等. 太阳能供暖系统流量对其热性能影响的研究[J]. 机械设计与制造, 2022(3): 185-188, 193.
GUO J W, TAN X, YU Q H, et al.Influence of flow rate on thermal performance of solar heating system[J]. Machinery design & manufacture, 2022(3): 185-188, 193.
[11] ABU MALLOUH M, ABDELMEGUID H, SALAH M.A comprehensive comparison and control for different solar water heating system configurations[J]. Engineering science and technology, an international journal, 2022, 35: 101210.
[12] 王敏, 张昕宇, 李博佳, 等. 西藏太阳能区域供暖技术应用探讨[J]. 建筑科学, 2022, 38(10): 1-6,14.
WANG M, ZHANG X Y, LI B J, et al.Discussion on the application of solar district heating technologies in Tibet[J]. Building science, 2022, 38(10): 1-6, 14.
[13] 苏鹏, 季杰, 蔡靖雍, 等. 变转速光伏直驱制冷系统的理论与实验研究[J]. 太阳能学报, 2021, 42(6): 115-123.
SU P, JI J, CAI J Y, et al.Numerical and experimental study on variable speed photovoltaic direct-driven refrigeration system[J]. Acta energiae solaris sinica, 2021, 42(6): 115-123.
[14] GAO Y H, JI J, HAN K D, et al.Comparative analysis on performance of PV direct-driven refrigeration system under two control methods[J]. International journal of refrigeration, 2021, 127: 21-33.
[15] SU P, JI J, CAI J Y, et al.Dynamic simulation and experimental study of a variable speed photovoltaic DC refrigerator[J]. Renewable energy, 2020, 152: 155-164.
[16] MARKUS G, VIKTOR U.Control of large scale solar thermal plants (Report) [EB/OL]. http://task55.iea-shc.org/fact-sheets.
[17] ZHANG R C, WANG D J, YU Z X, et al.Dual-objective optimization of large-scale solar heating systems integrated with water-to-water heat pumps for improved techno-economic performance[J]. Energy and buildings, 2023, 296: 1113281.
[18] ZHANG R C, WANG D J, LIU Y F, et al.Economic optimization of auxiliary heat source for centralized solar district heating system in Tibetan Plateau, China[J]. Energy conversion and management, 2021, 243: 114385.
[19] 李晓霞, 丁业良, 位召祥, 等. 光伏制氢工程项目经济性影响因素分析[J]. 电力勘测设计, 2022(11): 6-11, 40.
LI X X, DING Y L, WEI Z X, et al.Analysis of economic influencing factors of photovoltaic hydrogen production projects[J]. Electric power survey & design, 2022(11): 6-11, 40.