变风量空调系统风道分布参数的研究与建模.pdf

24 , 140 Vol. 24, Sum.No. 140 2006 11 , 6 ENERGY CONSERVATION TECHNOLOGY Nov. 2006, No. 6 变风量空调系统风道分布参数的研究与建模 , , ( 上海大学机电学院自动化系, 上海200072) : 变风量空调系统优化节能控制的 一个要素是空调系统的风道分布 数的变化规律 通过对风道实测数据的分析, 建立了风道分布 数实时变化的神经网络辨识模型和现代回归辨识 模型, 并研究它们和周围影响因素的关系, 同时借用暖通空调专业仿真软件HVACSIM 进行系统 仿真, 对两者进行了比较, 结果表明,HVACSIM 可以仿真相对复杂的大系统, 而系统辨识的精度较 高 :风道温升; 压力损失; HVACSIM 仿真; 现代回归方法; 人工神经网络 :TU8313; TP273 : A : 1002- 6339 ( 2006) 06- 0487- 04 Study and Modeling of Duct Parameters in VAV Air Conditioning System WU Ye, ZHAO Zhe- shen, LIU Bing ( College of Electromechanical Engineering and Automation, Shanghai University, Shanghai 200072, China) Abstract :The temperature rise and pressure losses along the ducts in variable air volume air conditioning sys- tem is essential to optimal energy- saving control.With ARX and artificial neural network identification, mod- eling temperature rise and pressure losses along ducts is presented according to experimental data of variable air volume air conditioning system.The relationship among them and the ambient conditions of the ducts are stud- ied.The heating, ventilation, air conditioning simulation software HVACSIM is adopted to simulate the tem- perature rise and pressure losses and the results of simulation are compared with that of ARX,which confirms that HVACSIM is suitable to complicated system and system identification leads to more accurate results. Key words: duct temperature rise; pressure losses; HVACSIM simulation; ARX; artificial neural network ( NBS) 1 HVACSIM , , , , HVACSIM ,