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建立了由散热器、阀门、室内空气和围护结构动态模型构成的室内散热器供热系统动态模型,分析了散热器供热系统的稳态与动态特性,提出了鲁棒H_∞控制器和鲁棒PI控制器的设计方法,对比分析了这2种控制器的扰动抑制性能。结果表明,这2种控制器都能提高室内供热系统的扰动抑制效果,但鲁棒H_∞控制器在稳定性、控制速度、控制精度上都优于鲁棒PI控制器。
The dynamic model of indoor radiator heating system, which is composed of radiator, valve, indoor air and enclosure dynamic model, is established. The steady-state and dynamic characteristics of radiator heating system are analyzed. The robust H_∞controller and Robust PI controller design method, comparative analysis of these two kinds of controller disturbance rejection performance. The results show that both controllers can improve the disturbance rejection of indoor heating system, but the robust H_∞ controller is superior to robust PI controller in stability, control speed and control precision.