Publications

@conference{Guefrachi201714563b,

title = {Tuning of Fractional Complex Order PID Controller},

author = {Ayadi Guefrachi and Slaheddine Najar and Messaoud Amairi and Mohamed Aoun},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044862009\&doi=10.1016%2fj.ifacol.2017.08.2093\&partnerID=40\&md5=7d6e94566853a2d70c14eca6f8255d30},

doi = {10.1016/j.ifacol.2017.08.2093},

year  = {2017},

date = {2017-01-01},

volume = {50},

number = {1},

pages = {14563 \textendash 14568},

abstract = {This paper deals with a new structure of Fractional Complex Order Controller (FCOC) with the form PIDx+iy, in which x and y are the real and imaginary parts of the derivative complex order, respectively. A tuning method for the Controller based on numerical optimization is presented to ensure the controlled system robustness toward gain variations and noise. This can be obtained by fulfilling five design requirements. The proposed design method is applied for the control of a Second Order Plus Time Delay resonant system. The effectiveness of the FCOC design method is checked through frequency and time domain analysis. © 2017},

note = {Cited by: 22; All Open Access, Bronze Open Access},

keywords = {Calculations, Complex order controllers, Controlled system robustness, Controllers, Delay control systems, Design, Electric control equipment, Fractional calculus, Frequency and time domains, Frequency domain analysis, Gain variations, Numeric optimization, Numerical methods, Numerical optimizations, Optimization, PID controllers, Proportional control systems, Robust control, Three term control systems, Time domain analysis},

pubstate = {published},

tppubtype = {conference}

}

@conference{BenHmed2015c,

title = {Stabilizing fractional order controller design for first and second order systems},

author = {A. Ben Hmed and M. Amairi and M. Aoun},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962682322\&doi=10.1109%2fSSD.2015.7348217\&partnerID=40\&md5=2c2fa689ec9eee718997cc0d455c46d3},

doi = {10.1109/SSD.2015.7348217},

year  = {2015},

date = {2015-01-01},

journal = {12th International Multi-Conference on Systems, Signals and Devices, SSD 2015},

abstract = {The paper deals with the stabilization problem of the Linear Time Invariant system. In this work, we present a new method of stabilization addressed to the first and second order unstable system in order to guarantee the stability and the time domain performances. Analytic expressions are developed in the purpose of setting the stabilizing parameters of the controller by describing the stability region. Moreover, the time domain-curves of the desired closed-loop system are used to show time domain specifications. Finally, some numerical examples and a control of DC motor are proposed in order to show the benefits and the reliability of the new technique. © 2015 IEEE.},

note = {Cited by: 1},

keywords = {Analytic expressions, Calculations, Closed loop systems, Control, Controllers, DC motors, Electric machine control, Fractional calculus, Fractional-order controllers, Invariance, Linear systems, Linear time invariant systems, Numerical methods, Resonance, Second-order systemss, Stability regions, Stabilization, Stabilization problems, Time domain analysis, Time varying control systems, Time-domain specifications},

pubstate = {published},

tppubtype = {conference}

}

@conference{BenHmed2015e,

title = {Stabilizing fractional order controller design for first and second order systems},

author = {A. Ben Hmed and M. Amairi and M. Aoun},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962682322\&doi=10.1109%2fSSD.2015.7348217\&partnerID=40\&md5=2c2fa689ec9eee718997cc0d455c46d3},

doi = {10.1109/SSD.2015.7348217},

year  = {2015},

date = {2015-01-01},

journal = {12th International Multi-Conference on Systems, Signals and Devices, SSD 2015},

abstract = {The paper deals with the stabilization problem of the Linear Time Invariant system. In this work, we present a new method of stabilization addressed to the first and second order unstable system in order to guarantee the stability and the time domain performances. Analytic expressions are developed in the purpose of setting the stabilizing parameters of the controller by describing the stability region. Moreover, the time domain-curves of the desired closed-loop system are used to show time domain specifications. Finally, some numerical examples and a control of DC motor are proposed in order to show the benefits and the reliability of the new technique. © 2015 IEEE.},

note = {Cited by: 1},

keywords = {Analytic expressions, Calculations, Closed loop systems, Control, Controllers, DC motors, Electric machine control, Fractional calculus, Fractional-order controllers, Invariance, Linear systems, Linear time invariant systems, Numerical methods, Resonance, Second-order systemss, Stability regions, Stabilization, Stabilization problems, Time domain analysis, Time varying control systems, Time-domain specifications},

pubstate = {published},

tppubtype = {conference}

}

@conference{BenHmed2014462b,

title = {Fractional order controller design using time-domain specifications},

author = {A. Ben Hmed and M. Amairi and M. Aoun},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983113529\&doi=10.1109%2fSTA.2014.7086744\&partnerID=40\&md5=9a013474680a6de39951b74183cb77ce},

doi = {10.1109/STA.2014.7086744},

year  = {2014},

date = {2014-01-01},

journal = {STA 2014 - 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering},

pages = {462 \textendash 467},

abstract = {This paper deals with the design of a fractional controller to achieve a desired closed loop system. Based on the resonance and time-domain studies of the desired closed-loop behavior, the controller design is carried out by a pole-compensator method. Numerical examples are proposed to show the efficiency of the proposed technique. © 2014 IEEE.},

note = {Cited by: 1},

keywords = {Automation, Closed loop systems, Closed-loop behavior, Control design, Controller designs, Controllers, Convergence of numerical methods, Design, Fractional controllers, Fractional systems, Fractional-order controllers, Numerical methods, Resonance, Time domain, Time domain analysis, Time-domain specifications},

pubstate = {published},

tppubtype = {conference}

}

@conference{BenHmed2014462c,

title = {Fractional order controller design using time-domain specifications},

author = {A. Ben Hmed and M. Amairi and M. Aoun},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983113529\&doi=10.1109%2fSTA.2014.7086744\&partnerID=40\&md5=9a013474680a6de39951b74183cb77ce},

doi = {10.1109/STA.2014.7086744},

year  = {2014},

date = {2014-01-01},

journal = {STA 2014 - 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering},

pages = {462 \textendash 467},

abstract = {This paper deals with the design of a fractional controller to achieve a desired closed loop system. Based on the resonance and time-domain studies of the desired closed-loop behavior, the controller design is carried out by a pole-compensator method. Numerical examples are proposed to show the efficiency of the proposed technique. © 2014 IEEE.},

note = {Cited by: 1},

keywords = {Automation, Closed loop systems, Closed-loop behavior, Control design, Controller designs, Controllers, Convergence of numerical methods, Design, Fractional controllers, Fractional systems, Fractional-order controllers, Numerical methods, Resonance, Time domain, Time domain analysis, Time-domain specifications},

pubstate = {published},

tppubtype = {conference}

}