摘要
以传递函数为数学模型讨论了利用频域数据辨识有自平衡能力和无自平衡能力两类热工对象动态特性的通用方法,分别描述了阶次、积分环节数和各参数的辨识过程,并给出了两类热工对象的辨识实例,结果表明:该方法具有一定的精度和工程应用价值,其递推的特点使其对于热工对象动态特性的在线辨识也有参考价值。
By using the transfer function as the model, it discussed the general way to identify the dynamic behaviour of the two kinds of thermal objects including the balanced and the nonbalanced from frequency data, which convered the identification of the order of the denominator and the numerator, the order of integrating factor and the coefficients. Additionally, it also gaves the examples for each case. The results show that this method is precise and valuable in application. It is especially fit for the online identification owing to the recursion. Fig 1 and refs 4.
出处
《动力工程》
CSCD
北大核心
2003年第5期2687-2689,共3页
Power Engineering
关键词
系统辨识
热工对象
传递函数
system identification
thermal objects
transfer function
