The Experts below are selected from a list of 207 Experts worldwide ranked by ideXlab platform

Ibrahim Sefa - One of the best experts on this subject based on the ideXlab platform.

  • sliding mode and proportional resonant based control strategy for three phase grid connected lcl filtered vsi
    Conference of the Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.

  • IECON - Sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered VSI
    IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.

Hasan Komurcugil - One of the best experts on this subject based on the ideXlab platform.

  • sliding mode and proportional resonant based control strategy for three phase grid connected lcl filtered vsi
    Conference of the Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.

  • IECON - Sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered VSI
    IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.

Elisa Franco - One of the best experts on this subject based on the ideXlab platform.

  • sequestration and delays enable the synthesis of a molecular Derivative operator
    Conference on Decision and Control, 2020
    Co-Authors: Christian Cuba Samaniego, Jongmin Kim, Elisa Franco
    Abstract:

    Many biological systems need to sense and respond to chemical gradients in order to find nutrients and adapt to their environment. In nature, molecular networks able to compute molecular gradients are complex, making it challenging to build minimal components for use in synthetic biology. In this work, we propose a motif that relies on molecular sequestration and delays to perform an approximate Derivative Operation. We analyze and discuss the properties and physical limitations of this network. We outline potential biological implementations of the motif, and we show its capacity for gradient computation with simulations. Other molecular architectures with the topology of an incoherent feed forward loop could be used for Derivative computation, but they present nonlinear behavior that is avoided in our motif.

  • CDC - Sequestration and delays enable the synthesis of a molecular Derivative operator
    2020 59th IEEE Conference on Decision and Control (CDC), 2020
    Co-Authors: Christian Cuba Samaniego, Jongmin Kim, Elisa Franco
    Abstract:

    Many biological systems need to sense and respond to chemical gradients in order to find nutrients and adapt to their environment. In nature, molecular networks able to compute molecular gradients are complex, making it challenging to build minimal components for use in synthetic biology. In this work, we propose a motif that relies on molecular sequestration and delays to perform an approximate Derivative Operation. We analyze and discuss the properties and physical limitations of this network. We outline potential biological implementations of the motif, and we show its capacity for gradient computation with simulations. Other molecular architectures with the topology of an incoherent feed forward loop could be used for Derivative computation, but they present nonlinear behavior that is avoided in our motif.

Necmi Altin - One of the best experts on this subject based on the ideXlab platform.

  • sliding mode and proportional resonant based control strategy for three phase grid connected lcl filtered vsi
    Conference of the Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.

  • IECON - Sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered VSI
    IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.

Saban Ozdemir - One of the best experts on this subject based on the ideXlab platform.

  • sliding mode and proportional resonant based control strategy for three phase grid connected lcl filtered vsi
    Conference of the Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.

  • IECON - Sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered VSI
    IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
    Co-Authors: Hasan Komurcugil, Necmi Altin, Saban Ozdemir, Ibrahim Sefa
    Abstract:

    A sliding-mode and proportional-resonant based control strategy for three-phase grid-connected LCL-filtered voltage source inverter (VSI) is proposed. The generation of three-phase capacitor voltage references is essential in the proposed control strategy. Although the reference capacitor voltage for a specific phase can be generated by adding the measured grid voltage for that phase with the voltage drop on the grid-side inductor caused by the reference grid current, the computation of the voltage drop on the inductor requires a Derivative Operation which is not preferred in a control algorithm. Therefore, a proportional-resonant (PR) controller is employed to generate the three-phase reference capacitor voltages. The consequence of using PR controller is that the need for using the Derivative Operation is eliminated. The PR controller offers another advantage regarding the ability to track ac quantities with zero steady-state error. In addition, the equation for the optimum sliding coefficient is derived analytically. Computer simulation results are presented and reported to validate the proposed control approach.