多输入多输出热工系统的辨识与建模研究

针对热工系统一般为多输入多输出的特性,介绍了多输入多输出辨识建模方法的基本原理,分析了将多输入多输出系统推导简化为多个多输入单输出系统的具体过程,在此基础上,研究了采用以独立伪随机信号为输入信号的多输入多输出系统的辨识试验方法及相应的辨识算法.利用上述辨识方法建立了某燃煤锅炉燃烧系统的动态数学模型,计算结果表明:该辨识建模方法对多输入多输出热工系统具有良好的建模效果.

Study on Identification and Modeling of Multi-input and Multi-output Thermal System

Aiming at the multi-input and multi-output characteristic of the thermal system,the basic principle of identification and modeling for multi-input and multi-output system was introduced,and the detail derivation process of simplifying the multi-input and multi-output system as multi-input and single-output system was analyzed.Then the identification experimental method and corresponding identification algorithm were studied for the multi-input and multi-output system which adopts independent pseudo-random s...