Proportional Resonant Current Control and Output-Filter Design Optimization for Grid-Tied Inverters Using Grey Wolf Optimizer

Faria, João; Fermeiro, João; Pombo, J.A.N.; Calado, M.R.A.; Mariano, S.J.P.S.

doi:10.3390/en13081923

Cited by 9 publications

(4 citation statements)

References 41 publications

(39 reference statements)

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“…Where t is the current iteration,  A and  C is coefficient vectors. The vectors  A and  C are calculated as follows, shown in equations (13) and (14).…”

Section: Control Scheme Using Modified Whale Optimization Algorithmmentioning

confidence: 99%

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Optimal control for a photovoltaic integrated grid system using PSO and modified whale optimization to enhance power quality

Tiwari

Agarwal

2023

Eng. Res. Express

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The paper proposes a modified & optimized controller for PV-integrated grid-connected PV systems. As the solar power output depends on the environmental conditions, i.e., irradiation and atmospheric temperature, the maximum power from the photovoltaic (PV) module is extracted using perturb and observe (P & O) algorithm. With a variety of controllers, such as conventional proportional and integral (PI) controllers, particle swarm optimization (PSO), and the modified Whale optimization algorithm (MWOA) method based on optimum control, the power as compared to extracted from PV panels using MWOA-based controllers. A complete simulation and implementation of a single-phase grid-connected inverter are shown to verify the proposed PV controller. The power flow control and grid synchronization are also presented when the above controllers act as MPPT controllers in the proposed system. The performance of proposed system is evaluated and compared among conventional and optimal controllers under a MATLAB-Simulink environment.

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“…Where t is the current iteration,  A and  C is coefficient vectors. The vectors  A and  C are calculated as follows, shown in equations (13) and (14).…”

Section: Control Scheme Using Modified Whale Optimization Algorithmmentioning

confidence: 99%

“…The technical criteria both for the utility grid side and PV system side must be satisfied to ensure the safety of the PV installation, reliability of utility grid, and effective use of the generated electricity [13,14].…”

Section: Introductionmentioning

confidence: 99%

Optimal control for a photovoltaic integrated grid system using PSO and modified whale optimization to enhance power quality

Tiwari

Agarwal

2023

Eng. Res. Express

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“…It is important to transform all the variables from their local reference to a global reference frame, because all the mathematical models were derived in each of the component's local frame. This transformation is carried out using (29).…”

Section: Microgrid Modelmentioning

confidence: 99%

“…Moreover, the chaotic GWO determines the optimal droop parameters. Reference [29] uses GWO to optimize the control parameters of the proportional resonant controllers and find the optimal design of the output filter of a grid-tied inverter. Furthermore, Djerioui et al in [30] present a predictive torque control of a permanent magnet synchronous motor based on GWO for smooth operation of electric vehicles.…”

Section: Introductionmentioning

confidence: 99%

Resiliency-Oriented Optimization of Critical Parameters in Multi Inverter-Fed Distributed Generation Systems

2021

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In the modern power grid, with the growing penetration of renewable and distributed energy systems, the use of parallel inverters has significantly increased. It is essential to achieve stable parallel operation and reasonable power sharing between these parallel inverters. Droop controllers are commonly used to control the power sharing between parallel inverters in an inverter-based microgrid. In this paper, a small signal model of droop controllers with secondary loop control and an internal model-based voltage and current controller is proposed to improve the stability, resiliency, and power sharing of inverter-based distributed generation systems. The distributed generation system’s nonlinear dynamic equations are derived by incorporating the appropriate and accurate models of the network, load, phase locked loop and filters. The obtained model is then trimmed and linearized around its operating point to find the distributed generation system’s state space representation. Moreover, we optimize the critical control parameters of the model, which are found using eigenvalue analysis, and Grey Wolf optimization technique. Through time-domain simulations, we show that the proposed method improves the system’s resiliency, stability, and power sharing characteristics.

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Control and mathematical design of PV-based renewable energy systems for LCL-SR filter-based power quality improvement

Tiwari

2024

Phys. Scr.

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Power quality challenges arise when photovoltaic (PV) systems are integrated into power networks. This research work examines the control and mathematical design of an LCL-SR filter for power quality improvement in PV-based sustainable energy systems to meet this difficulty. Power quality may be improved via LCL filter in grid-connected systems. A non-linear load-connected PV system incorporates a variety of power electronics controllers, including as an MPPT controller, battery controller, and inverter current controller, which introduce harmonics into the grid. A passive filter, LCL-SR, is suggested for PV applications that interact with voltage source inverters and the utility grid or electric load to reduce harmonics. A detailed mathematical modeling is presented to design an LCL-SR filter, and its performance is evaluated under different load conditions in terms of THD and efficiency. LCL-SR filter has 4.32% THD but in the case of LCL filter with parallel R is less THD, which is 3.61%. In terms of efficiency and THD LCL-SR is best among all compared filters which have THD is 4.32% along with an efficiency is 75.95%. The results are compared without a filter, and different configurations of LCL-SR are simulated to show the effectiveness of the proposed filter for PV & residential applications.

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Proportional Resonant Current Control and Output-Filter Design Optimization for Grid-Tied Inverters Using Grey Wolf Optimizer

Cited by 9 publications

References 41 publications

Optimal control for a photovoltaic integrated grid system using PSO and modified whale optimization to enhance power quality

Optimal control for a photovoltaic integrated grid system using PSO and modified whale optimization to enhance power quality

Resiliency-Oriented Optimization of Critical Parameters in Multi Inverter-Fed Distributed Generation Systems

Control and mathematical design of PV-based renewable energy systems for LCL-SR filter-based power quality improvement

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