Fuzzy Sliding Mode Control of a VAV Air-Conditioning Terminal Temperature System

Fuzhou Niu, Ziyang Li, Lijian Yang, Zhengtian Wu, Qixin Zhu and Baoping Jiang

Complexity, 2020, vol. 2020, 1-10

Abstract:

A varied air volume (VAV) air-conditioning system comprises diverse input and/or output disturbances, which are commonly nonlinear, with large lag and uncertainty. Based on the traditional control methods, testing the controlling parameters of a VAV air-conditioning system is challenging. Sliding mode control could improve the robustness of the system due to the adaptive capacity of disturbance rejection. Moreover, the fuzzy algorithm could be employed to determine the stability of a sliding control system by adjusting the parameters in the approach rate, reducing the switching frequency, and weakening chatter. Fuzzy sliding mode control is investigated in this paper to improve the performance of a VAV air-conditioning system. Simulation results verify that the sliding mode control is suitable for a VAV air-conditioning system to achieve good adaptability and robustness considering the influence of multiple external variable disturbances. In addition, the chattering of the system is improved after the introduction of fuzzy control.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:8823674

DOI: 10.1155/2020/8823674

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