基于Simscape的太阳能热泵供暖系统仿真

Simulation of solar heat pump heating system based on Simscape

文章通过Simulink/Simscape构建一套包括集热器、热泵、水箱、房屋等关键模块的太阳能热泵供暖系统仿真模型,并与数学模型的压力模拟值和能效比(COP)模拟值作对比。基于Simscape模型分析辐照度、压缩机流量对能效比的影响,并对系统运行期间的关键参数变化进行了动态分析。结果表明:Simscape模型模拟值精度比数学模型高5.5%左右,在模拟精度上具有显著优势。更强的辐照度会带来更高的系统性能;随着压缩机流量的增加,系统性能明显降低。运行期间各部件出力合理,各项参数随温度变化动态响应,能效比稳定在3左右,具有较高的运行效率。采用物理建模方法来实现系统建模仿真,为供暖系统性能优化与节能控制的提升提供参考。

The article constructed a comprehensive solar heat pump heating system simulation model using Simulink/Simscape,which included key components such as collectors,heat pumps,water tanks,and residential housing.The model was compared with simulated values of pressure and the coefficient of performance(COP) against those obtained from a mathematical model.The impact of irradiance and compressor flow rate on COP was analyzed using the Simscape model,alongside a dynamic analysis of key parameter changes during system operation.The results indicate that the Simscape model achieves approximately 5.5% higher accuracy in simulation values compared to the mathematical model,demonstrating a significant advantage in simulation precision.The increasing of irradiance leads to the improving of system performance;however,as compressor flow rate increases,system performance significantly decreases.Throughout operation,the output from each component is reasonable,and parameters dynamically respond to temperature changes,maintaining a stable COP around 3,indicative of high operational efficiency.Employing physical modeling methods to achieve system simulation provides valuable insights for optimizing performance and enhancing energy control in heating systems.