基于热电耦合模型的储能电站预制舱舱内热环境数值计算

袁涤非　吴涵　范元亮　顾锦书

摘要：導热辐射数值离散角度区域划分混乱，导致储能电站预制舱中通风冷却能耗比过高。计算基于热电耦合模型的储能电站预制舱舱内热环境数值，建立储能电站预制舱舱内热平衡方程组，并分割网格的积分区域，计算预制舱舱内综合导热系数;重新划分导热辐射数值离散角度区域，构建热电耦合预制舱热负荷算法，完成预制舱舱内热环境数值计算。实验结果表明：共轭梯度计算方法的储能电站预制舱中通风冷却能耗比最小为250 kW/h，广义最小残量的储能电站预制舱中通风冷却能耗比下降到最小为298 kW/h;基于热电耦合模型的储能电站预制舱舱内热环境数值计算，储能电站预制舱中通风冷却能耗比最小为150 kW/h。

关键词：热电;耦合模型;储能电站;预制舱;热环境;数值

中图分类号：TB126

文献标识码：A文章编号：1001-5922（2022）06-0163-06

Numerical calculation of thermal environment in prefabricated cabin of energy storage power station based on thermoelectric coupling model

YUAN Difei WU Han FAN Yuanliang GU Jinshu

（1. Nanjing SAC Power Grid Automation Co.， Ltd.， Nanjing 211153， China;

2. State Grid Fujian Electric Power Research Institute， Fuzhou 350007， China; 3. Fujian Provincial

Enterprise Key Laboratory of High Reliable Electric Power Distribution Technology， Fuzhou 350007， China

）

Abstract：The numerical dispersion angle and regional division of heat conduction radiation are chaotic， which leads to the high energy consumption ratio of ventilation and cooling in the prefabricated cabin of energy storage power station. Calculate the thermal environment in the prefabricated cabin of the energy storage power station based on the thermoelectric coupling model， establish the heat balance equations in the prefabricated cabin of the energy storage power station， divide the integral region of the grid， and calculate the comprehensive thermal conductivity in the prefabricated cabin; The numerical discrete angle area of heat conduction radiation is re-divided， the thermal load algorithm of thermoelectric coupling prefabricated cabin is constructed， and the numerical calculation of thermal environment in prefabricated cabin is completed. The experimental results show that the minimum ventilation and cooling energy consumption ratio in the prefabricated cabin of the energy storage power station based on the conjugate gradient calculation method is 250 kW/h， and the minimum ventilation and cooling energy consumption ratio in the prefabricated cabin of the generalized minimum residue energy storage power station is 298 kW/h; The numerical calculation of thermal environment in the prefabricated cabin of energy storage power station based on thermoelectric coupling model shows that the minimum energy consumption ratio of ventilation and cooling in the prefabricated cabin of energy storage power station is 150 kW/h.

Key words：thermoelectricity; coupling model; energy storage power station; prefabricated cabin; thermal environment; numerical value

电力调度与控制需要电站予以调配，因此变电站的建设规模正在逐渐扩大。与此同时，热负荷也为变电站带来了新的危机，高能耗提高了电站的运营成本[1]。由于电力设备在运行过程中会发热，且外部大气环境与太阳辐射热对流渗透，造成电力设备发热[2]。储能电站预制舱主要用于保护电力二次设备，因此储能电站预制舱对电力系统重要[3]。顺应智慧城市建设思路可以发现，使用预制舱式二次设备能够提高舱体保温功能[4]。因此，储能电站预制舱的构成材料要具备隔热性能，通过热桥结构控制舱内空气流场。……