T-S Fuzzy Model-Based Fault Detection for Continuous Stirring Tank Reactor

Wang, Yanqin; Ren, Weijian; Liu, Zhuoqun; Li, Jing; Zhang, Duo

doi:10.3390/pr9122127

Cited by 6 publications

(4 citation statements)

References 30 publications

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“…Based on (36), pre-and post-multiplying inequality (35) by diag{I, I, I, I, I, Ñ, Ñ} and its transposition, we yield…”

Section: Parameter Design Of Observer and Pid Controllermentioning

confidence: 99%

“…In reality, the time delay phenomenon exists in numerous engineering systems such as chemical processes, electric power systems, mechanical transmission systems, traffic systems, and aerospace systems, which may occur during the measurement process of sensors or the transmission process of signals [35][36][37]. For time-delayed systems, the changing tendency of the state depends on not only the current state but also the previous states [38,39].…”

Section: Introduction 1engineering Background Research Status and Mot...mentioning

confidence: 99%

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Security-Guaranteed PID Control for Discrete-Time Systems Subject to Periodic Dos Attacks

et al. 2023

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This paper is concerned with the observer-based H∞ proportional-integral-derivative (PID) control issue for discrete-time systems using event-triggered mechanism subject to periodic random denial of service (DoS) jamming attacks and infinitely distributed delays. In order to characterize the occurrence of periodic random DoS jamming attacks in the network channel between controller and actuator, the Kronecker delta function is used to represent the periodic switching between the sleeping period and attack period, and a Bernoulli-distributed random variable is utilized to reflect the probabilistic occurrence of DoS attacks. Infinitely distributed delay is involved to reflect actual state lag. The relative event-triggering mechanism is employed to reduce unnecessary information transmission and save communication energy in the network channel between sensor and observer. An observer-based PID controller is constructed for the regulation of the system to achieve an appropriate working effect. The aim of this paper is to design a security-guaranteed PID controller for delayed systems such that both the exponential mean-square stability and the H∞ performance are satisfied. Using the Lyapunov stability theory, stochastic analysis method and matrix inequality technique, a sufficient condition is put forward that ensures the existence of the required observer and PID controller. Gain parameters of the observer and the PID controller are computed by solving a certain matrix inequality. A simulation is carried out to verify the effectiveness of the developed observer-based H∞ PID control method. The obtained H∞ noise rejection level is below 0.85, the average event-based release interval is 13, the absolute values of the maximum estimation error of two elements in the system state are 1.434 and 0.371 using the observer, and two elements of the system state converge to 0.238 and −0.054 at the 41th time step with two elements of the control output being 0.031 and 0.087.

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“…Based on (36), pre-and post-multiplying inequality (35) by diag{I, I, I, I, I, Ñ, Ñ} and its transposition, we yield…”

Section: Parameter Design Of Observer and Pid Controllermentioning

confidence: 99%

Section: Introduction 1engineering Background Research Status and Mot...mentioning

confidence: 99%

Security-Guaranteed PID Control for Discrete-Time Systems Subject to Periodic Dos Attacks

et al. 2023

Self Cite

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“…To solve this problem, numerous scholars have conducted research on the pulse cleaning process through numerical simulation [12][13][14] or experiments [15][16][17][18][19]. Signal processing technology [20][21][22][23][24][25][26] and high-speed cameras are required for experimentation purposes, while professional fluid analysis software is needed for numerical simulation [27]. Many…”

Section: Introductionmentioning

confidence: 99%

Modeling and Cleaning Performance Optimization of Conical Filter Cartridge of Gas Turbine Intake Filter

Yi,

Duan,

Yuan

et al. 2023

Processes

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Intake quality is crucial to gas turbines’ operation. The cartridge filter in the gas turbine intake system filters the gas and outputs a highly clean gas into the gas turbine, while pulse cleaning technology ensures the continuous and efficient operation of cartridge filters. While the current cylindrical pleated filter cartridge used in pulse cleaning usually suffers from insufficient upper cleaning, the conical pleated filter cartridge can effectively solve this issue by providing a greater upper cleaning area with significant application prospects. Despite the existing potential, research on conical filter cartridge cleaning performance is limited; thus, this paper aims to investigate the advantages of pulse cleaning using a conical filter cartridge via numerical simulation. Results demonstrate that while the conical filter cartridge enhances the cleaning strength, cleaning uniformity decreases slightly. To address this shortcoming, this paper innovatively proposes a combination of scattering nozzles and conical filter cartridges to explore the impact of the installation position of scattering nozzles on the cleaning. The modeling and cleaning performance analysis in our research illustrates that the optimal cleaning effect can be achieved under specific conditions when the scattering nozzle is installed parallel to the conical filter cartridge’s inlet. The research work in this paper provides a solution for optimizing the pulse cleaning performance of conical filter cartridges.

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“…In [13], the two-level fuzzy feedback scheduling scheme is designed to adjust the task priority and period according to the combined effects of the response time and packet loss of cyber-physical systems for robot control, proving that fuzzy control has fast and accurate response performance in real-time systems. In [14], according to the characteristics of the actual reaction of the continuous stirred tank reactor, the T-S fuzzy model is used to study the problem of fault detection. In addition, the fuzzy controller is also used in the medical field, such as the fuzzy control-based energy aware routing protocol (EARP) applied in wireless body area networks (WBANs) [15] and combined with sliding mode control applied in gyroscope control systems [16,17].…”

Section: Introductionmentioning

confidence: 99%

Dynamic High-Type Interval Type-2 Fuzzy Logic Control for Photoelectric Tracking System

Qin

Zhang²,

Zhao³

et al. 2022

Processes

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This paper proposes a dynamic high-type control (DHTC) method based on an interval type-2 fuzzy logic controller (IT2FLC), which is used in the photoelectric tracking system to improve the steady-state accuracy and response speed. Adding integrators to the traditional multi-loop feedback control loop can increase the system type, thereby speeding up the response speed and improving the steady-state accuracy, but there is a risk of integral saturation. Switching the type dynamically according to the system state can avoid integral saturation while retaining the advantages of the high-type. Fuzzy logic control (FLC) can dynamically change the output value according to the input change and has the advantages of fast response speed and strong ability to handle uncertainties. Therefore, in this paper, the FLC is introduced into the high-type control system, and the output of the FLC is used as the gain of the integrator to control the on-off to achieve the goal of dynamic switching type, which is successfully verified in the experiment. IT2FLC introduces a three-dimensional membership function, which further improves the FLC’s ability to handle uncertainties. From the experimental results, compared with T1FLC, IT2FLC’s ability to handle uncertainties is significantly improved. In addition, in order to speed up the calculation speed of IT2FLC, this paper proposes an improved type-reduction algorithm, which is called weighted-trapezoidal Nie-Tan (WTNT). Compared with the traditional type-reduction algorithm, WTNT has faster calculation speed and better steady-state accuracy, and has been successfully applied to real-time control systems, which has good engineering application value. Finally, in order to reduce the interference of human factors and improve the automation level of the system, a multi-population genetic algorithm (MPGA) is used to iteratively optimize the parameters of the FLC, which improves the output accuracy. On the experimental platform of the flexible fast steering mirror (FFSM), the control effects of the traditional controller, T1FLC and IT2FLC are compared, which proves that the IT2FLC-DHTC system has a faster response performance, higher steady-state accuracy, and stronger ability to handle uncertainties.

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T-S Fuzzy Model-Based Fault Detection for Continuous Stirring Tank Reactor

Cited by 6 publications

References 30 publications

Security-Guaranteed PID Control for Discrete-Time Systems Subject to Periodic Dos Attacks

Security-Guaranteed PID Control for Discrete-Time Systems Subject to Periodic Dos Attacks

Modeling and Cleaning Performance Optimization of Conical Filter Cartridge of Gas Turbine Intake Filter

Dynamic High-Type Interval Type-2 Fuzzy Logic Control for Photoelectric Tracking System

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