On-line parameter and state estimation of an air handling unit model: experimental results using the modulating function method
For HVAC control engineers, it demonstrates a practical on-line implementation of a known method, but the results are incremental and limited to a specific testbed.
The paper implements the modulating function method for on-line parameter and state estimation of an air handling unit model, validating it experimentally on a heat flow setup and comparing favorably with conventional techniques like Matlab tools and Luenberger observers.
This paper considers the on-line implementation of the modulating function method, for parameter and state estimation, for the model of an air-handling unit, the central element of HVAC systems. After recalling the few elements of the method, more attention is paid on issues related to its on-line implementation, issues for which we use two different techniques. Experimental results are obtained after implementation of the algorithms on a heat flow experiment, and they are compared with conventional techniques (conventional tools from Matlab for parameter estimation, and a simple Luenberger observer for state estimation) for their validation.