Denoising Control of Temperature Tracking for LiBr-H2O Absorption Refrigeration System

Abstract

To alleviate the noise in the temperature tracking of the LiBr-H2O absorption refrigeration system, denoising model-free adaptive control algorithm has been proposed in this paper. Firstly, the improved tracking differentiator is mainly used to alleviate the phase delay. Secondly, the model-free adaptive control with single input and single output has been extended to dual input and single output, equipped with the improved tracking differentiator, the denoising control of temperature tracking for LiBr-H2O absorption refrigeration system has been constructed. Thirdly, the stability of denoising model-free adaptive control algorithm has been proven. Finally, the proposed algorithm is applied to the mathematical model and actual system, the experimental results prove the rapidity and immunity of the proposed algorithm in different systems.