Title: Residual-based fault detection isolation and recovery of a greenhouse

Authors: Rahul Singhal; Rajesh Kumar; Satyanarayana Neeli

Addresses: Department of Electrical Engineering, Malaviya National Institute of Technology, Jaipur, India ' Department of Electrical Engineering, Malaviya National Institute of Technology, Jaipur, India ' Department of Electrical Engineering, Malaviya National Institute of Technology, Jaipur, India

Abstract: This paper is concerned with fault detection, isolation and recovery (FDIR) of the greenhouse whose temperature is regulated by the model predictive controller (MPC). The residual generation approach is adopted for fault detection and isolation. The new considerations in the proposed FDIR approach are the residual generation for actuator faults, regulation failure detection as the indication of inappropriate regulation by the controller, below threshold actuator fault detection strategy, and recovery operation updating model used by MPC once the FDIR isolates the actuator fault. The proposed control strategy FDIR with MPC was compared with fixed model information MPC for simulated scenarios of the actuator fault. It has been shown that FDIR successfully detects, isolates and updates model information with low computation burden for non-delayed control evaluation.

Keywords: fault detection; fault isolation; fault recovery; greenhouse environment control; model predictive control.

DOI: 10.1504/IJAAC.2022.122599

International Journal of Automation and Control, 2022 Vol.16 No.3/4, pp.410 - 432

Received: 23 May 2019
Accepted: 04 Apr 2020
Published online: 04 May 2022 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article