Firefly Algorithm based LCL filtered grid-tied STATCOM design for reactive power compensation in SCIG based Micro-grid

Saxena, Nitin Kumar; Gupta, Atma Ram; Mekhilef, Saad; Gao, Wenzhong; Kumar, Ashwani; Gupta, Varun; Netto, Roberto S.; Kanungo, Abhas

doi:10.1016/j.egyr.2022.07.106

Cited by 14 publications

(8 citation statements)

References 25 publications

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“…To eliminate the harmonics created by the PWM switching inverter, an LCL flter is interfaced between the inverter and the point of coupling. Te LCL flter dynamics are represented by the state equations below in (8), which assume that the inverter generates the desired inverter bridge voltage.…”

Section: Lcl Filter Modelmentioning

confidence: 99%

“…( 6) Te voltages in MG must remain in an acceptable range, if the voltage limits are not respected the algorithm returns to the frst step to decrease the voltage drops because minimizing the reactive power exchanges implies voltage drops which need to be respected, another solution is to change the voltage set points within the respected boundaries. (7) If the voltage limits are respected, the algorithm returns the optimal parameters for virtual inductances and resistances.…”

Section: Virtual Impedance Optimizationmentioning

confidence: 99%

“…As highlighted in Figure 1, converters signifcantly infuence grid synchronization, power quality, and energy fow within MGs [6]. Similarly, the LCL flter is considered as the most suitable option in terms of cost because of its smaller passive element size and its capability to efectively suppress and reduce high-frequency harmonics [7,8]. To ensure highquality current in MG, it is crucial to design the LCL flter properly [9].…”

Section: Introductionmentioning

confidence: 99%

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Stability and Reactive Power Sharing Enhancement in Islanded Microgrid via Small-Signal Modeling and Optimal Virtual Impedance Control

Bennia,

Daili,

Harrag

et al. 2024

International Transactions on Electrical Energy Systems

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In the context of integrating Renewable Energy Sources, Microgrid (MG) development is pivotal, particularly as a foundational technology for Smart-Grid evolution. Despite advancements in control techniques, challenges persist in ensuring system stability and accurate power sharing across diverse operational conditions and load types. The objective of this research is to control numerous paralleled inverters-based distributed generators (DGs) that contribute to power sharing in an island MG. The proposed methodology involves developing an innovative small-signal model for islanding MGs that incorporate virtual impedances. Subsequently, optimization algorithms based on Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) are proposed and compared for designing the virtual impedances. These algorithms analyze all potential operating points, aiming to minimize reactive power mismatches while maximizing MG stability. The suggested objective function facilitates the simultaneous achievement of these objectives. The proposed approaches were tested using MATLAB-Simulink software, and the comparison of the results between conventional approach and the proposed optimal approaches shows significant improvement in terms of the dynamic response during load changes, such as a decrease in response time by up to 20%, a reduction in overshoot percentage by approximately 15%, and a settling time improvement of nearly 25%. These quantified improvements highlight the effectiveness of the GA and PSO methods in minimizing the reactive power-sharing error while optimizing MG performance and stability.

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Section: Lcl Filter Modelmentioning

confidence: 99%

Section: Virtual Impedance Optimizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Stability and Reactive Power Sharing Enhancement in Islanded Microgrid via Small-Signal Modeling and Optimal Virtual Impedance Control

Bennia,

Daili,

Harrag

et al. 2024

International Transactions on Electrical Energy Systems

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“…The formulas presented here can be used to determine how much power the PV panel is producing at any given moment [ 52 ].

…”

Section: Description and Modeling Of The Investigated Systemmentioning

confidence: 99%

Enhancing the Functionality of a Grid-Connected Photovoltaic System in a Distant Egyptian Region Using an Optimized Dynamic Voltage Restorer: Application of Artificial Rabbits Optimization

Ibrahim

Alkuhayli

Béroual

et al. 2023

Sensors

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Photovoltaic (PV) systems are crucial to the production of electricity for a newly established community in Egypt, especially in grid-tied systems. Power quality (PQ) issues appear as a result of PV connection with the power grid (PG). PQ problems cause the PG to experience faults and harmonics, which affect consumers. A series compensator dynamic voltage restorer (DVR) is the most affordable option for resolving the abovementioned PQ problems. To address PQ difficulties, this paper describes a grid-tied PV combined with a DVR that uses a rotating dq reference frame (dqRF) controller. The main goal of this study is to apply and construct an effective PI controller for a DVR to mitigate PQ problems. The artificial rabbits optimization (ARO) is used to obtain the best tune of the PI controller. The obtained results are compared with five optimization techniques (L-SHADE, CMAES, WOA, PSO, and GWO) to show its impact and effectiveness. Additionally, Lyapunov’s function is used to analyze and evaluate the proposed controller stability. Also, a mathematical analysis of the investigated PV, boost converter, and rotating dqRF control is performed. Two fault test scenarios are examined to confirm the efficacy of the suggested control approach. The parameters’ (voltage, current, and power) waveforms for the suggested system are improved, and the system is kept running continuously under fault periods, which improves the performance of the system. Moreover, the findings demonstrate that the presented design successfully keeps the voltage at the required level with low THD% values at the load side according to the IEEE standards and displays a clear enhancement in voltage waveforms. The MATLAB/SIMULINK software is used to confirm the proposed system’s performance.

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“…Thus, efficient charging stations for EVs at seaports and PQ-improved charging stations are studied in the articles. 10,11 Saxena et al 12 argue that a grid-tied STATCOM with suitable LCL filtering must be designed to address the reactive power compensation capabilities as a local area problem. For the proposed microgrid, the parameters are calculated through transient analysis, PQ, and power balancing studies.…”

Section: Introductionmentioning

confidence: 99%

Bernoulli polynomial‐based control technique for PV‐integrated grid system under distorted supply

Bala

Singh

Kumar

2023

Circuit Theory & Apps

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Summary This paper discusses the performance of the Bernoulli Polynomial‐based artificial neural network (BePANN) for the control of a single‐phase grid‐integrated solar photovoltaic (PV) system. A single‐phase, single‐stage topology of a grid‐integrated PV system is utilized to feed nonlinear loads at the point of common coupling. The fundamental load component is extracted from distorted load current using a single‐layer neural network. There are several control techniques mentioned in the literature for load compensation. However, many techniques show slower convergence response, higher oscillations, and a large computational burden. The designed BePANN controller attenuates harmonic components from nonlinear current and improves the power quality (PQ) under normal and distorted grid conditions. The single‐layer BePANN control has a simplified structure based on several polynomial terms; this reduces the computational burden and complexity of the controller. The objective of the designed controller is to fulfill the load's active power demand from the generated solar PV power and feed the excess power back to the grid when surplus. When solar PV is not integrated with the grid, the voltage source converter acts as a distribution static compensator, improving the system's utilization factor. The proposed control technique is simulated in MATLAB Simulink, and results are experimentally verified through laboratory prototype under normal and abnormal grid conditions. The application of higher order polynomials for PV‐integrated systems with multifunctional PQ capabilities has been implemented for the first time in this article. The main outcomes of the proposed control technique are solving current‐related PQ issues and reactive power compensation and providing improved power factor under both normal and distorted polluted grids.

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Firefly Algorithm based LCL filtered grid-tied STATCOM design for reactive power compensation in SCIG based Micro-grid

Cited by 14 publications

References 25 publications

Stability and Reactive Power Sharing Enhancement in Islanded Microgrid via Small-Signal Modeling and Optimal Virtual Impedance Control

Stability and Reactive Power Sharing Enhancement in Islanded Microgrid via Small-Signal Modeling and Optimal Virtual Impedance Control

Enhancing the Functionality of a Grid-Connected Photovoltaic System in a Distant Egyptian Region Using an Optimized Dynamic Voltage Restorer: Application of Artificial Rabbits Optimization

Bernoulli polynomial‐based control technique for PV‐integrated grid system under distorted supply

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