State-Space Based H ∞ Robust Controller Design for Boiler-Turbine System

Maher, Rami A.; Mohammed, Ismail A.; Ibraheem, Ibraheem Kasim

doi:10.1007/s13369-012-0275-5

Cited by 13 publications

(12 citation statements)

References 6 publications

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“…Since various linear controllers [13,16,54] and various MPC controllers [1,[10][11][12][13]55] were designed for the Bell-Åström boiler-turbine unit, to evaluate the performance of the proposed NSFSFC strategy for the tracking control of the Bell-Åström boiler-turbine system, an LSFSFC strategy and an NMPC strategy are presented for comparisons. The NMPC strategy is developed based on [1,55].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…If the tracking error z(t) = 0, then according to (22), the state vector x(t) = x r (t), which means the tracking goal has been achieved. In light of (15,16) and Lemma 1, (30) can be expressed as: , namely . (32) results in: < 0:…”

Section: Lemma 1 ([45]mentioning

confidence: 99%

“…An adaptive control strategy was developed in [9] where unknown model uncertainties were considered. A linear controller based on an H∞ robust control scheme was developed by Rami [16]. The nonlinear Bell-Åström model was linearized at a typical operation point in [13,16], which could have a negative effect on the effectiveness and on the performance of the developed controllers because of the existence of model mismatch.…”

Section: Introductionmentioning

confidence: 99%

“…A linear controller based on an H∞ robust control scheme was developed by Rami [16]. The nonlinear Bell-Åström model was linearized at a typical operation point in [13,16], which could have a negative effect on the effectiveness and on the performance of the developed controllers because of the existence of model mismatch. The nonlinear model was represented by successively linearized models in [1], and hybrid models based on several linearized models were developed in [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…The Bell-Åström boiler-turbine unit was modeled based on several local linear models in [9,10,14,15], and TS fuzzy control system was proposed to approximate the nonlinear model. The performance and the effectiveness of the controllers presented in [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] were demonstrated by simulations.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A nonlinear state‐feedback state‐feedforward tracking control strategy for a boiler‐turbine unit

Wang

2019

Asian Journal of Control

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A boiler‐turbine unit is a primary module for coal‐fired power plants, and an effective automatic control system is needed for the boiler‐turbine unit to track the load changes with the drum water level kept within an acceptable range. The aim of this paper is to develop a nonlinear tracking controller for the Bell‐Åström boiler‐turbine unit. A Takagi‐Sugeno fuzzy control system is introduced for the nonlinear modeling of the Bell‐Åström boiler‐turbine unit. Based on the Takagi‐Sugeno fuzzy models, a nonlinear tracking controller is developed, and the proposed control law is comprised of a state‐feedforward term and a state‐feedback term. The stability of the closed‐loop control system is analyzed on the basis of Lyapunov stability theory via the linear matrix inequality approach and Schur complement. Moreover, model uncertainties are also considered, and it is proved that with the proposed control law the tracking error converges to zero. To assess the performance of the proposed nonlinear state‐feedback state‐feedforward control strategy, a nonlinear model predictive control strategy and a linear strategy are presented as comparisons. The effectiveness and the advantages of the proposed nonlinear state‐feedback state‐feedforward control strategy are demonstrated by simulations.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Lemma 1 ([45]mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A nonlinear state‐feedback state‐feedforward tracking control strategy for a boiler‐turbine unit

Wang

2019

Asian Journal of Control

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Robust Position Tracking Control of an Electro-Hydraulic Actuator in the Presence of Friction and Internal Leakage

et al. 2013

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This paper proposes an improved robust position controller for the electro-hydraulic actuator system using the varying boundary layered sliding mode control scheme. The proposed scheme has the ability to improve the position tracking performance of the actuator in the presence of friction and internal leakage. The former is represented using the LuGre model while later is modelled as a turbulent flow. To evaluate the effectiveness of the proposed method, MATLAB simulations are carried out under friction and leakage effects. Its performance is compared with the conventional PID and fuzzy PID (FPID) methods. Finally, an experimental rig that comprises of a single-rod and double acting hydraulic cylinder is set up to validate the proposed idea. The software development is carried out in the DSpace 1104 environment using a TMS320F240 digital signal processor. The superiority of the proposed method over the PID and FPID in terms of tracking position is highlighted by simulation and experimental results.

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Decoupled control scheme for output tracking of a general industrial nonlinear MIMO system using improved active disturbance rejection scheme

Abdul-Adheem

Ibraheem

2019

Alexandria Engineering Journal

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State-Space Based H ∞ Robust Controller Design for Boiler-Turbine System

Cited by 13 publications

References 6 publications

A nonlinear state‐feedback state‐feedforward tracking control strategy for a boiler‐turbine unit

A nonlinear state‐feedback state‐feedforward tracking control strategy for a boiler‐turbine unit

Robust Position Tracking Control of an Electro-Hydraulic Actuator in the Presence of Friction and Internal Leakage

Decoupled control scheme for output tracking of a general industrial nonlinear MIMO system using improved active disturbance rejection scheme

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