Sliding mode control based on disturbance observer for greenhouse climate systems
type: Item
instance of: scholarly article
title: Sliding mode control based on disturbance observer for greenhouse climate systems
zbMATH Open document ID: 1426.93104
DOI: 10.1155/2018/2071585
author: Lijun Chen
author: Shangfeng Du
author: Dan Xu
author: Yaofeng He
author: Meihui Liang
published in: Mathematical Problems in Engineering
publication date: 2019-02-08T00:00:00Z
review text: Summary: Greenhouses are closed environments that require careful climatic control, which can benefit from a system control method to cope with the high nonlinearity, complex coupling, and robustness of unknown disturbances. This paper presents a general framework for an integral sliding mode controller based on a disturbance observer combined with feedback linearization for a greenhouse temperature and humidity system. The first-principle greenhouse climate model is described as a standard affine nonlinear system. The feedback linearization control law is used to achieve a system consisting of two separate integrator channels for temperature and humidity. System compound disturbances are estimated by applying a sliding mode disturbance observer. Based on the observer, an integral sliding mode control is incorporated to enhance the robustness against uncertainties and guarantee satisfactory tracking performance even when there are unknown estimation errors. The validity and efficacy of the proposed control technique for greenhouse climate tracking were verified by comparison with simulation results obtained using the common sliding mode control method using feedback linearization without the disturbance observer. Based on this comparison, the developed controller shows a faster system response speed, higher control precision, and stronger anti-interference ability. This method can be applied to improve greenhouse climate control systems.
Mathematics Subject Classification ID: 93C10
Mathematics Subject Classification ID: 93B12
Mathematics Subject Classification ID: 93B35
Mathematics Subject Classification ID: 86A10
zbMATH DE Number: 7018596
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2018/2071585
OpenAlex ID: W2795593064
cites work: Adaptive hierarchical control of greenhouse crop production
cites work: Fuzzy decoupling control of greenhouse climate
cites work: Robust adaptive control for greenhouse climate using neural networks
cites work: Robust adaptive sliding mode control for uncertain discrete-time systems with time delay
cites work: Quadrotor vehicle control via sliding mode controller driven by sliding mode disturbance observer
cites work: Sliding mode disturbance observer‐based adaptive control for uncertain MIMO nonlinear systems with dead‐zone
cites work: Multiobjective hierarchical control architecture for greenhouse crop growth
cites work: Robust exact differentiation via sliding mode technique
description: scientific article; zbMATH DE number 7018596