Voltage Dip's Mitigation During PV-Grid-Connection Using STATCOM

Hamdeen, Ibrahim; Saeed, Mohammed A.; Badran, Ebrahim A.

doi:10.1109/mepcon.2018.8635292

Cited by 3 publications

(9 citation statements)

References 6 publications

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“…Fig. 1a illustrates a schematic diagram for grid-connected PV system [9]. The system contains PV source, a dc-link capacitor, a dc-dc converter, a dc-dc controller with maximum power point tracking (MPPT), a grid interface inverter with an appropriate filter and a step up transformer.…”

Section: Test System Simulationmentioning

confidence: 99%

“…3c, with 1.2 μs rise time and 50 μs fall time. Coefficient of temperature 0.001 (a) The schematic diagram [9] (b) The PSCAD/EMTDC model Fig. 1: The Grid-connected PV system Lightning impulse voltage hits the PV grid-connected system at inverter terminals.…”

Section: B) the Impulse Lightning Voltage Simulationmentioning

confidence: 99%

“…STATCOM is considered as a voltage-source converter (VSC) that uses a dc voltage to produce a three-phase ac voltage [9]. If the dc link voltage is increased, the reactive power flows from the inverter to the system and vice versa.…”

Section: B) Mitigation Using Statcommentioning

confidence: 99%

“…If the dc link voltage is increased, the reactive power flows from the inverter to the system and vice versa. The DC side of the STATCOM is used to keep the DC voltage as low as possible and to improve DC capacitor utilization [9]. The DC capacitor is used to inject reactive power to the STATCOM when the voltage is in sag condition.…”

Section: B) Mitigation Using Statcommentioning

confidence: 99%

“…The DC capacitor is used to inject reactive power to the STATCOM when the voltage is in sag condition. The parameters of STATCOM are calculated as equations in [9]. (a) IEEE Frequency-dependent model [12].…”

Section: B) Mitigation Using Statcommentioning

confidence: 99%

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Mitigation of Lightning Overvoltages Using STATCOM in Grid-Connected PV Systems

Hamdeen

Badran

Saeed

2019

Port-Said Engineering Research Journal

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Lightning strike causes a large lightning voltage injection into grid-connected PV systems at the point between inverter and transformer. The overvoltage resulting from the lightning-impulse voltage is a major concern for the multiple expensive electrical devices of the grid-connected PV system and to be studied in depth in order to decrease the damage caused by this overvoltage. In this paper, PSCAD/EMTDC software simulated the complete model of the system. In this work, the point which selected from gridconnected PV system to inject impulse lightning voltage is between transformer and inverter. In different locations of the gridconnected PV system, lightning overvoltage has been noted by injecting impulse lightning voltages. In this paper, the surge arrester is used to mitigate the lightning overvoltage on the PV array. STATCOM is used to improve voltage of the PV array. The results show that in case of using the surge arresters and STATCOM, the lightning overvoltage is mitigated.

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Section: Test System Simulationmentioning

confidence: 99%

Section: B) the Impulse Lightning Voltage Simulationmentioning

confidence: 99%

Section: B) Mitigation Using Statcommentioning

confidence: 99%

Section: B) Mitigation Using Statcommentioning

confidence: 99%

Section: B) Mitigation Using Statcommentioning

confidence: 99%

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Mitigation of Lightning Overvoltages Using STATCOM in Grid-Connected PV Systems

Hamdeen

Badran

Saeed

2019

Port-Said Engineering Research Journal

Self Cite

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A Proposed Single-Tuned Filter for Harmonic Reduction in Grid-Tied PV Systems

Samy

Eladl

Badran³

2019

Port-Said Engineering Research Journal

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The increasing of the Photovoltaic (PV) systems penetration requires study of their effects on the grid's power quality. Therefore, in this paper the grid-tied PV system is studied. This needs an appropriate simulation of the PV system. Therefore, PSCAD/EMTDC is used in this study. The paper starts with investigation of the effect of PV on the harmonic distortion of the system. Finally, a proposed low-cost series connected single tuned-filter is designed for harmonic reduction in grid-tied PV systems. The results confirm the validity of the proposed filter for wide rating of PV systems.

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Power Quality Assessment of Grid-Connected PV System in Compliance with the Recent Integration Requirements

et al. 2020

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The generation and integration of photovoltaic power plants (PVPPs) into the utility grid have increased dramatically over the past two decades. In this sense, and to ensure a high quality of the PVPPs generated power as well as a contribution on the power system security and stability, some of the new power quality requirements imposed by different grid codes and standards in order to regulate the installation of PVPPs and ensure the grid stability. This study aims to investigate the recent integration requirements including voltage sag, voltage flicker, harmonics, voltage unbalance, and frequency variation. Additionally, compliance controls and methods to fulfill these requirements are developed. In line with this, a large-scale three-phase grid-connected PVPP is designed. A modified inverter controller without the use of any extra device is designed to mitigate the sage incidence and achieve the low-voltage ride-through requirement. It can efficiently operate at normal conditions and once sag or faults are detected, it can change the mode of operation and inject a reactive current based on the sag depth. A dynamic voltage regulator and its controller are also designed to control the voltage flicker, fluctuation, and unbalance at the point of common coupling between the PVPP and the grid. The voltage and current harmonics are reduced below the specified limits using proper design and a RLC filter. The obtained results show that the proposed controller fulfilled the recent standard requirements in mitigating power quality (PQ) events. Thus, this study can increase the effort towards the development of smooth PVPP integration by optimizing the design, operation and control strategies towards high PQ and green electricity.

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Voltage Dip's Mitigation During PV-Grid-Connection Using STATCOM

Cited by 3 publications

References 6 publications

Mitigation of Lightning Overvoltages Using STATCOM in Grid-Connected PV Systems

Mitigation of Lightning Overvoltages Using STATCOM in Grid-Connected PV Systems

A Proposed Single-Tuned Filter for Harmonic Reduction in Grid-Tied PV Systems

Power Quality Assessment of Grid-Connected PV System in Compliance with the Recent Integration Requirements

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