国际水协IWA提出的ADM1模型可以较好地描述厌氧发酵过程，但其大量的模型参数使其在实际应用中存在困难。针对ADM1模型，在分析了各可变参数的可辨识性和灵敏度后，确定六种参数对于整个动态过程影响较大。因此，可以对这六种参数进行辨识，从而得到一个较好的ADM1模型。以此为基础，针对ADM1具体实施条件进行了仿真建模，利用标准仿真软件STOAT生成数据，通过求解一个非线性最优化问题得到参数的最优估计值，进而通过辨识后的模型进行仿真比较，验证了本文的结论。%The process of anaerobic digestion(AD) can be described well by ADM1 developed by International Water Associa-tion(IWA).However, the complexity of our model contributes a large number of parameters,which make the model difficult to apply in practical. After analyzing the identification and sensitivity of variable parameters, six important parameters have been proved to have significant impact on the whole process. So these six parameters are identified to obtain a better model to simulate the process. Based on this, simulation model for specific cases was built, producing a set of real data by using the standard simula-tion software STOAT. Through solving a problem of nonlinear constrained optimization, the parameters’ optimal estimation was obtained. From comparison between output of identified model and real data, the conclusion was verified.
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