基于太阳能热泵干燥系统的综合能源运行优化

Optimize Operation of Integrated Solar and Heat-pump Drying System

本文设计了太阳能热泵干燥系统,引入了PVT(光伏/光热)及储能设备,对干燥过程进行热力学及负荷分析,建立了系统的干燥模型。在此基础上,建立综合能源系统运行优化模型,对可控变量进行约束求解,分析不同场景下的最优运行策略。最后以干燥油茶籽为例,在不同天气情况下进行仿真测算,对优化方案和原方案的能效及经济性进行对比,结果显示在能效保持不变的情况下,优化方案可节省10%左右的用电成本,提高干燥过程的经济性。

This paper designs a solar heat pump drying system,introduces PVT(photovoltaic/photothermal)and energy storage equipment,analyzes the thermodynamics and load of the drying process,and establishes the drying model of the system.On this basis,the operation optimization model of integrated energy system is established,the constraints of controllable variables are solved,and the optimal operation strategies under different scenarios are analyzed.Finally,taking the dried camellia seed as an example,the simulation calculation is carried out under different weather conditions,and the energy efficiency and economy of the optimization scheme and the original scheme are compared.The results show that when the energy efficiency remains unchanged,the optimization scheme can save about 10%of the power cost and improve the economy of the drying process.