空气焓差法试验台空调系统在线辨识算法的研究Research on Online Identification Arithmetic in Air-conditioning System of Air Enthalpy Difference Testing Platform
白建波,张小松
BAI JIAN-bo,ZHANG XIAO-song(Southeast University
摘要(Abstract):
对空气焓差法试验台空调系统的温度控制进行了动态特性分析并建立了数学模型。采用了带遗忘因子的递推最小二乘和基于零频率的模型匹配的联合辨识算法对空调系统进行在线辨识。仿真结果表明,该联合算法计算量较少,具有良好的辨识精度,可以不断提供试验台空调系统温度控制对象的实时模型。该辨识算法为空调对象的自适应控制提供了重要的手段。
The dynamic behavior and mathematical model of temperature control in air-conditioning system of air enthalpy-difference testing platform were analyzed.A kind of arithmetic of recursive least squares(RLS) method with forgetting factor combined with model matching of zero frequency was adopted to identify the object online.Simulation results show that the joint arithmetic has less computing with good precision;it can obtain the real-time model of the platform's air-conditioning system continually.It provides an effective way to realize self-tuning control in air-conditioning systems.
关键词(KeyWords):
空调系统;数学模型;在线辨识;递推最小二乘
air-conditioning system;mathematical model; online identification;RLS
基金项目(Foundation): 国家自然科学基金项目(50376052)
作者(Author):
白建波,张小松
BAI JIAN-bo,ZHANG XIAO-song(Southeast University
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