Improvement of THD performance of a robust controller for grid-side energy conversion system based on LCL filter without RC sensor

Elyaalaoui, Kamal; Ouassaid, Mohammed; Cherkaoui, Mohamed

doi:10.1016/j.ijepes.2020.106143

Cited by 16 publications

(6 citation statements)

References 24 publications

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“…The active damping method solves the power loss problem by adding the extra terms to the control strategy, but it is very sensitive to parameter variation [6] and requires multiple sensors. The passive damping method is simple, but its disadvantage is the damping resistance losses, which reduces the system efficiency [7]. This study also reveals that with some improvement in the topology of the LCL filter, the power losses in the damping resistors can be reduced considerably and can be almost identical to those of active damping methods, while preserving the inherited advantages of passive damping methods [7].…”

Section: Introductionmentioning

confidence: 80%

Finite time control for grid-connected wind turbine under power step change and grid faults

Elyaalaoui

Labbadi

Caux

2023

2023 International Conference on Control, Automation and Diagnosis (ICCAD)

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This paper proposes a Finite-Time Nonlinear Sliding Mode Control (FTNSMC) for wind turbine system-based squirrel cage induction generator (SCIG) connected to grid trough LCL filter. The proposed FTNSMC employs a sliding surface based on the nonlinear integral function to improve the system performance. Both, the generator-side and grid-side converters are controlled to ensure the robustness and stability of the power system subjected to grid voltage faults. The simulation results demonstrate the superiority of the proposed control strategy compared with the conventional Sliding Mode Control (SMC) method and confirm its robustness against grid faults and disturbances.

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Section: Introductionmentioning

confidence: 80%

Finite time control for grid-connected wind turbine under power step change and grid faults

Elyaalaoui

Labbadi

Caux

2023

2023 International Conference on Control, Automation and Diagnosis (ICCAD)

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“…if P WF_max = P WF_ref and Q WF_max = Q WF_ref then (8) (10) else (11) while P WF_max < P WF_ref do (12) P WF_ref = P WF_ref -1000 {decreases the reference} (13) end while (14) while Q WF_max < Q WF_ref do (15) Q WF_ref = Q WF_ref -1000 (16) end while (17) end if (18) end while the rated value. e voltage dip should be regulated after 500 ms and return to the dead-band ±5% V n [41][42][43].…”

Section: Pq Controlmentioning

confidence: 99%

“…For solving the problem of WF reactive power control at Point of Common Coupling (PCC), various control methods are proposed recently in the literature, such as hierarchal fuzzy controller [9], nonlinear fuzzy controller [10], and fractional-order controller (FOC) [11]. e first work on FO derivatives is started in the last centuries and the theory of fractional calculus has been developed mostly by mathematicians.…”

Section: Introductionmentioning

confidence: 99%

Optimal Fractional Order Based on Fuzzy Control Scheme for Wind Farm Voltage Control with Reactive Power Compensation

Elyaalaoui

Labbadi

Ouassaid

et al. 2021

Mathematical Problems in Engineering

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Voltage stability margin is ensured through the reactive power resources. In order to generate the reactive power references and ensure the low-voltage ride-through (LVRT) control of a wind farm system based on squirrel cage induction generator, this paper proposed an optimal control approach based on fractional-order (FO) PI-fuzzy-PI (FOPI-fuzzy-FOPI) controller. The proposed control method ensures, also, the demand for active and reactive power predetermined by the transmission system operator (TSO) and satisfies the grid code recommendations. In order to achieve a faster tracking of state variables of the system, the FO operators are optimized using the particle swarm optimization algorithm (PSOA). Using FO operator and PSOA, the responses of the system can be improved. The proposed controller provides additional parameters for better tracking performance and faster convergence can be achieved. Numerical simulation results are presented to analyze the advantages of the proposed control approach to design a physically, realizable controller. The present results are compared with various control methods to show the superiority of the method proposed in this paper.

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“…Harmonics are mainly generated due to the constant on and off switching and connection of non-linear loads in the power system. In [39] improvement of THD performance on the grid side using a robust controller is studied. A comparative study control method for wind based energy system at grid side for reducing THD is given in [40] .…”

Section: Introductionmentioning

confidence: 99%

Investigating the input power quality of multi-pulse AC-DC power converter fed induction motor drives

Nahin¹,

Nafis²,

Biswas³

et al. 2022

Heliyon

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Improvement of THD performance of a robust controller for grid-side energy conversion system based on LCL filter without RC sensor

Cited by 16 publications

References 24 publications

Finite time control for grid-connected wind turbine under power step change and grid faults

Finite time control for grid-connected wind turbine under power step change and grid faults

Optimal Fractional Order Based on Fuzzy Control Scheme for Wind Farm Voltage Control with Reactive Power Compensation

Investigating the input power quality of multi-pulse AC-DC power converter fed induction motor drives

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