Voltage profile improvement of weak grid with solar PV integration

Vuddanti, Sandeep; John, Varun N.; Salkuti, Surender Reddy

doi:10.12928/telkomnika.v19i3.17736

Cited by 3 publications

(3 citation statements)

References 28 publications

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“…Figure 2. Basic block diagram of PV power ramp rate control [14] The corresponding power shortage or excess is then compensated from the BESS, either by discharging from or charging to the battery. PG represents the smoothed output power injected to the grid after the ramp rate control process.…”

Section: [𝛥𝑃 𝛥𝑡 (𝑡)]| ≥ 𝑟𝑚𝑎𝑥mentioning

confidence: 99%

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Strategy to reduce solar power fluctuations by using battery energy storage system for UTeM’s grid-connected solar system

Tee

Yee²,

Gan

et al. 2022

Bulletin EEI

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Recent years have witnessed the increasing uptake of solar photovoltaic (PV) installations, ranging from a few kilowatts for residential rooftops to a few megawatts for large-scale solar farms. One of the key challenges for the solar PV systems is its dependency on the solar energy, which is intermittent in nature and highly unpredictable. In this regard, battery energy storage system (BESS) is regarded as the effective solution that can smoothen the output power fluctuation from the solar PV system. Hence, this work utilized BESS that had fast response time with high power and energy density to reduce the solar output fluctuations from a real grid-connected solar system installed at the campus rooftop. The characteristic of the PV power fluctuation and the BESS storage requirement to smooth out the fluctuation within the allowable limit were determined and analyzed. More importantly, actual solar irradiance data with an interval of one minute was utilized in this work. The findings suggest that BESS with 66% of the installed solar capacity and 21% of the average daily solar generation of the installed system are required to smoothen the solar fluctuation that exceeds the ramp rate limit of 10%/min.

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Section: [𝛥𝑃 𝛥𝑡 (𝑡)]| ≥ 𝑟𝑚𝑎𝑥mentioning

confidence: 99%

“…The number of fluctuations that exceed the rmax will decrease when rmax increases. When the ramp rate power control is introduced to the PV system, the fluctuation will be limited to 10%/min with the help of the energy storage system (ESS) due to its fast time response characteristics in charging and discharging [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

Strategy to reduce solar power fluctuations by using battery energy storage system for UTeM’s grid-connected solar system

Tee

Yee²,

Gan

et al. 2022

Bulletin EEI

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“…The work uses the Artificial neural network fuzzy interface system (ANFIS) based controller in maximum power point tracking (MPPT) to track the maximum power point in solar panels. Vuddanti et al [35] describe solar PV with a weak grid system to improve the voltage profile. The work analyzes the voltage and current profiles at the grid and load sides.…”

Section: Introductionmentioning

confidence: 99%

Hybrid control mechanism-based DVR for mitigation of voltage sag and swell in solar PV-based IEEE 33 bus system

Setty

Shashikala

Veeramanju

2023

IJPEDS

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The power quality issues are raised due to sag/swell, which affects the overall performance of the grid-connected system. This study introduces the hybrid control mechanism based on a dynamic voltage restorer (DVR) to mitigate the sag and swell issues in the solar PV-based IEEE 33 bus system. The hybrid controller improves the dynamic performance and boosts the overall efficiency of the DVR system. The proposed work is also used to address the distribution system's voltage quality issues with minimal energy drawn out from the utility grid and effectively use solar energy. The sag and swell are introduced at the grid side and compensated at the load side by injecting DVR voltage. The proportional-integral (PI) controller followed by the fuzzy logic controller (FLC) is used to create the hybrid control mechanism for DVR. In this work, the solar PV system with DVR system is connected to the 29th location in the IEEE 33 bus system for performance realization. The hybrid control mechanism-based DVR provides 1.06% and 1.05% total harmonic distortion (THD) at sag and swell conditions for load voltage. The proposed work meets the IEEE 519 standards in terms of THD calculation. The proposed design compares with existing work and shows better THD reduction for load voltages.

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Impact of a Weak Grid-network on a Grid-tied Solar Photovoltaic System Supplying a Non-linear Load

Neku,

Koko

2023

2023 International Conference on Electrical, Communication and Computer Engineering (ICECCE)

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Voltage profile improvement of weak grid with solar PV integration

Cited by 3 publications

References 28 publications

Strategy to reduce solar power fluctuations by using battery energy storage system for UTeM’s grid-connected solar system

Strategy to reduce solar power fluctuations by using battery energy storage system for UTeM’s grid-connected solar system

Hybrid control mechanism-based DVR for mitigation of voltage sag and swell in solar PV-based IEEE 33 bus system

Impact of a Weak Grid-network on a Grid-tied Solar Photovoltaic System Supplying a Non-linear Load

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