太阳能热泵热水系统循环水流量控制仿真

设计了一套新的太阳能热泵热水系统,介绍了该系统的工作原理和特点,分析表明,该系统既具有普通太阳能热泵的优点,又能够实现供暖、供冷、全年供应生活热水等多种功能。采用机理建模的方法建立了房间冷负荷、风机盘管、执行器、传感器和循环水系统的传递函数模型。设计了太阳能热泵热水系统的循环水系统PID控制、模糊控制和模糊自适应PID控制三种控制方案,并针对设计的三种控制方案对系统进行了控制仿真。结果表明,从调节时间、超调量和阶跃响应等几个方面综合考虑,由于模糊自适应PID控制能够在线调整控制系统的特性参数,随时适应系统的运行变化,在太阳能热泵热水系统的循环水系统运行控制上具有明显的优势。

Circulating water flow control simulation of solar-assisted heat pump water heating(SAHPWH) system

A new kind of solar-assisted heat pump(SAHP) system was designed,which not only has the general advantages,but also can heat,cool,provide domestic hot water throughout the year.Transfer function models for the room cooling load,fan-coil,implementation,sensor and the circulating water system were established on the mechanism modeling method.Three control scheme were designed,including PID control,fuzzy control and fuzzy adaptive PID control,which were used in the circulating water system and the room tempera...