Harmonic Mitigation in Grid-Connected Distributed Energy Systems using PI and Fuzzy Logic Controller

Zahariah, Jenner; Symon, V. A. Tibbie Pon

doi:10.1007/s40031-021-00661-y

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…It has two inputs and one output, as seen in the figure. This error and change in error(CE) is given in equations ( 9) and (10).…”

Section: Dc-link Voltage Controller/battery Controllermentioning

confidence: 99%

“…The input for the fuzzy analysis is represented by the equation (10), which is the nth sample time. After a limit has been reached, the output of the fuzzy controller is used to determine the maximum amplitude of the reference voltage V max .…”

Section: Dc-link Voltage Controller/battery Controllermentioning

confidence: 99%

“…As a result of the constantly shifting environmental circumstances, power systems that are fueled by renewable sources of energy produce asymmetrical values for key metrics including voltage, current, and power. The FLC has been used to control the multilevel inverter that has been suggested for usage in grid integration of the solar system [9][10][11][12]. A nonlinear type of load and grid is also connected at the PCC and the utility grid also takes power from the inverter.…”

Section: Introductionmentioning

confidence: 99%

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A comparative analysis of PI & FLC based grid connected PV system with power backup to improve power quality

Tiwari

Agarwal²

2022

Eng. Res. Express

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In this article, a fuzzy logic controller (FLC) tuned DC-link controller is presented. This controller is utilized to enhance the power quality characteristic of grid-integrated PV systems with power backup in comparison to the PI controller, without any filter at PCC (point of common coupling). The primary purpose of these controllers is to maintain power to the DC / AC sides by maintaining the DC-link voltage under transient conditions. The proposed system is tested with a non-linear load; hence, the proposed system requires power quality enhancements on PCC. By using both controller power flow control, reactive power compensation and harmonic mitigation is done on PCC, after that grid current becomes sinusoidal. For the power quality improvement, no filter/shunt active power filter (SAPF) is connected to PCC, only proposed inverter current controller improves the power quality at PCC by using these controllers. Using the MPPT (maximum power point tracking) Controller, the maximum power extraction feature is also included in this paper to extract maximum power from the PV module under varying atmospheric circumstances. The power backup unit is also connected with this system, power backup unit includes a battery controller which works as a boost and buck converter according to system requirements, along with a battery. On the MATLAB/Simulink platform, the control scheme and functioning of both controllers are tested, and the results are validated as satisfactory. According to IEEE 519, the grid current THD is below 5% when the suggested control system is implemented.

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“…It has two inputs and one output, as seen in the figure. This error and change in error(CE) is given in equations ( 9) and (10).…”

Section: Dc-link Voltage Controller/battery Controllermentioning

confidence: 99%

Section: Dc-link Voltage Controller/battery Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A comparative analysis of PI & FLC based grid connected PV system with power backup to improve power quality

Tiwari

Agarwal²

2022

Eng. Res. Express

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“…The current obtained by the addition of the compensation current and the grid-connected current is controlled by PI to obtain the reference current that the inverter will eventually send out. The static error can be eliminated by adopting the PI [8] control strategy.…”

Section: Icricamentioning

confidence: 99%

A new type of microgrid power quality improvement strategy based on harmonic suppression

Wang

Liu

2022

J. Phys.: Conf. Ser.

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Current harmonics and distorted voltage are two important factors that affect the power quality of microgrids. Combining with the operating characteristics of microgrids, this article uses a new strategy to control grid-connected inverters and UPQC to improve grid quality. Pointed out its advantages relative to traditional active filters, and in view of the current harmonic detection problems, In this paper, the inverter adopts an improved ip-iq harmonic detection method to improve the accuracy of harmonic current detection and has strong interference. The UPQC structure uses SVPWM and PWM control methods as its new control strategies on the series side and parallel side to compensate for distortion voltage and harmonic current. A detailed model is built in MATLAB/Simulink to verify the feasibility of this method.

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Hybrid aquila arithmetic optimization based ANFIS for harmonic mitigation in grid connected solar fed distributed energy systems

Zahariah,

V․ A․

2024

Electric Power Systems Research

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Harmonic Mitigation in Grid-Connected Distributed Energy Systems using PI and Fuzzy Logic Controller

Cited by 4 publications

References 20 publications

A comparative analysis of PI & FLC based grid connected PV system with power backup to improve power quality

A comparative analysis of PI & FLC based grid connected PV system with power backup to improve power quality

A new type of microgrid power quality improvement strategy based on harmonic suppression

Hybrid aquila arithmetic optimization based ANFIS for harmonic mitigation in grid connected solar fed distributed energy systems

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