Low voltage ride through control strategy for grid-tied solar photovoltaic inverter
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Ramesh Daravath
and
Srinivasa Rao Sandepudi
Abstract
This paper presents a low voltage ride through (LVRT) control strategy using an active power oscillations based reference current generation approach for grid tied solar photo voltaic (SPV) system under line-to-ground (LG) and double line-to-ground (LLG) faults. Proposed control strategy minimizes the harmonics injected into the grid, as well as oscillations in injected reactive power and DC-link voltage. Further this control strategy provides a dynamic control of active and reactive powers, the flow of sinusoidal currents into the grid, and avoids the disconnection between the utility grid and SPV system during faults. A proportional resonant (PR) current controller is developed in a stationary reference frame to achieve the power quality by fulfilling the grid codes. Simulation and experimental results are presented to highlight the merits of the proposed control scheme.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The authors gratefully acknowledge the financial support provided by the Central Power Research Institute (CPRI), Bangalore, Ministry of Power (MoP), Government of India, under the Research Scheme on Power (RSoP) (CPRI/PM/RD/RSOP/F-1) for carrying out this research work.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
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- Performance evaluation of seven level grid-tied PV inverter employs seven switches with the triple gain
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- Improved adaptive micro-grid over current protection scheme considering false tripping
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Articles in the same Issue
- Frontmatter
- Research Articles
- Harmonic power sharing control using adaptive virtual harmonic impedance in islanded microgrids
- Performance evaluation of seven level grid-tied PV inverter employs seven switches with the triple gain
- Transient thermal analysis of gas insulated switchgear modules using thermal network approach
- Multi-source perceptual blind compensation inspection method for substation based on equipment’s visual blind area identification and saliency detection
- Electric vehicle charging pile capacity planning based on normal distribution Monte Carlo sampling model
- Robust synergetic control of electric vehicle equipped with an improved load torque observer
- Techno-economic analysis of integrating battery energy storage systems in industrial buildings
- Enhanced sensitive phase alpha plane scheme against high resistance ground faults
- Improved adaptive micro-grid over current protection scheme considering false tripping
- Low voltage ride through control strategy for grid-tied solar photovoltaic inverter
- Study on the influence of dual-winding optimization design on the torque and suspension performance of bearingless motor
