独立式太阳能-空气源热泵热风供暖系统的设计

Design of Independent Heating System with Solar and Air Source Heat Pump

为改善传统太阳能供暖质量低、能耗高等问题,设计一套独立式太阳能-空气源热泵热风供暖系统。基于可发电的太阳能平板集热器,按照能源的梯度等级逐级利用集取太阳能。吸收的热能经热泵用于室内采暖,光伏电能经微电网控制和存储,输出的高品质电能维持系统中用电设备的运行,并以混合储能元件均衡微电网中因供暖系统用电功率改变引发的母线电压波动。采用模糊控制对压缩机、电子膨胀阀等设备进行调节,确保系统的稳定性和可靠性,最后构建实物平台。结果表明：太阳能-空气源热泵热风供暖采暖质量达到国家标准要求且平均制热性能系数可达3.47,节能减排效果较为显著。

In order to improve the problems of low quality and high energy comsumption for the traditional solar heating system, an independent heating system with solar and air source heat pump is designed in the paper. Based on the solar panel collector and power generation, the energy collected is utilized gradu- ally according to the gradient of energy level. The absorption of thermal energy can be used for indoor heating by the heating pump. The photovohaic power, controlled and stored by the microgrid, provides high quality power for the operation of power equipments, and the hybrid energy storage element is used to bal- ance the voltage fluctuation of the bus caused by the change of the electric power in the heating system from the microgrid. Fuzzy control is used to adjust the compressor and electronic expansion valve to ensure the stability and reliability of the system. Finally, the physical platform is constructed. The system operation data shows that the air heating with solar air source heat pump meets the national standard, and the average thermal performance coefficient can reach 3.47, resulting in remarkable energy saving and emission reduction.