On the Electronic Realizations of Fractional-Order Phase-Lead-Lag Compensators with OpAmps and FPAAs

Muñiz-Montero, Carlos; Sánchez-Gaspariano, Luis Abraham; Sánchez–López, C.; González-Díaz, Víctor R.; Tlelo‐Cuautle, Esteban

doi:10.1007/978-3-319-50249-6_5

Cited by 25 publications

(11 citation statements)

References 35 publications

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“…where is the fractional-order. It is important to mention that high-order fractance approximations can also be obtained; however, the synthesis of them leads to complex and bulky circuits [21,22]. A simple circuit able to synthesize (1) is given in Figure 1, whose transfer function is…”

Section: Fractional-order Integratormentioning

confidence: 99%

Fractional‐Order Memristor Emulator Circuits

et al. 2018

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This brief leads the synthesis of fractional-order memristor (FOM) emulator circuits. To do so, a novel fractional-order integrator (FOI) topology based on current-feedback operational amplifier and integer-order capacitors is proposed. Then, the FOI is substituting the integer-order integrator inside flux- or charge-controlled memristor emulator circuits previously reported in the literature and in both versions: floating and grounded. This demonstrates that FOM emulator circuits can also be configured at incremental or decremental mode and the main fingerprints of an integer-order memristor are also holding up for FOMs. Theoretical results are validated through HSPICE simulations and the synthesized FOM emulator circuits can easily be reproducible. Moreover, the FOM emulator circuits can be used for improving future applications such as cellular neural networks, modulators, sensors, chaotic systems, relaxation oscillators, nonvolatile memory devices, and programmable analog circuits.

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Section: Fractional-order Integratormentioning

confidence: 99%

Fractional‐Order Memristor Emulator Circuits

et al. 2018

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“…On the other hand, in the case in which a controller with predefined characteristics must be designed, the employment of op-amp-based RC filter topologies is a cheaper solution [9,22]. Another attractive solution that combines an easy design procedure with programmability and versatility is the utilization of field-programmable analog arrays (FPAAs), which are based on configurable analog blocks (CABs) connected through programmable interconnects [37,38].…”

Section: Discussionmentioning

confidence: 99%

Design of Low-Voltage FO-[PD] Controller for Motion Systems

Malatesta

Kapoulea

Psychalinos

et al. 2021

JLPEA

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Fractional-order controllers have gained significant research interest in various practical applications due to the additional degrees of freedom offered in their tuning process. The main contribution of this work is the analog implementation, for the first time in the literature, of a fractional-order controller with a transfer function that is not directly constructed from terms of the fractional-order Laplacian operator. This is achieved using Padé approximation, and the resulting integer-order transfer function is implemented using operational transconductance amplifiers as active elements. Post-layout simulation results verify the validity of the introduced procedure.

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“…In recent years, researchers proposed several other techniques, among which one may consider [61][62][63][64][65][66][67]. Namely, it was pointed out that fractional-order lead compensators found difficult application in industry, because it is difficult to obtain the desired functions with the commercially available electronic components, such that special methods that are based on operational amplifiers and field programmable analog arrays should be used [61]. In [63], the authors design two fractional-order lead-lag compensators to control a benchmark refrigeration system (the PID2018 benchmark challenge) such that a more aggressive response is obtained.…”

Section: Realizationmentioning

confidence: 99%

Design of Cascaded and Shifted Fractional-Order Lead Compensators for Plants with Monotonically Increasing Lags

Maione

2020

Fractal Fract

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This paper concerns cascaded, shifted, fractional-order, lead compensators made by the serial connection of two stages introducing their respective phase leads in shifted adjacent frequency ranges. Adding up leads in these intervals gives a flat phase in a wide frequency range. Moreover, the simple elements of the cascade can be easily realized by rational transfer functions. On this basis, a method is proposed in order to design a robust controller for a class of benchmark plants that are difficult to compensate due to monotonically increasing lags. The simulation experiments show the efficiency, performance and robustness of the approach.

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On the Electronic Realizations of Fractional-Order Phase-Lead-Lag Compensators with OpAmps and FPAAs

Cited by 25 publications

References 35 publications

Fractional‐Order Memristor Emulator Circuits

Fractional‐Order Memristor Emulator Circuits

Design of Low-Voltage FO-[PD] Controller for Motion Systems

Design of Cascaded and Shifted Fractional-Order Lead Compensators for Plants with Monotonically Increasing Lags

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