Please use this identifier to cite or link to this item: http://dspace.aiub.edu:8080/jspui/handle/123456789/1444
Title: Transient Stability Enhancement of a Grid-Connected Large-Scale PV System Using Fuzzy Logic Controller
Authors: Hazari, Md. Rifat
Jahan, Effat
Mannan, Mohammad Abdul
Das, Narottam
Issue Date: 8-Oct-2021
Publisher: MDPI
Abstract: This paper presents a new intelligent control strategy to augment the low-voltage ride-through (LVRT) potential of photovoltaic (PV) plants, and the transient stability of a complete grid system. Modern grid codes demand that a PV plant should be connected to the main power system during network disturbance, providing voltage support. Therefore, in this paper, a novel fuzzy logic controller (FLC) using the controlled cascaded strategy is proposed for the grid side converter (GSC) of a PV plant to guarantee voltage recovery. The proposed FLC offers variable gains based upon the system requirements, which can inject a useful amount of reactive power after a severe network disturbance. Therefore, the terminal voltage dip will be low, restoring its pre-fault value and resuming its operation quickly. To make it realistic, the PV system is linked to the well-known IEEE nine bus system. Comparative analysis is shown using power system computer-aided design/electromagnetic transients including DC (PSCAD/EMTDC) software between the conventional proportional–integral (PI) controller-based cascaded strategy and the proposed control strategy to authenticate the usefulness of the proposed strategy. The comparative simulation results indicate that the transient stability and the LVRT capability of a grid-tied PV system can be augmented against severe fault using the proposed FLC-based cascaded GSC controller.
URI: http://dspace.aiub.edu:8080/jspui/handle/123456789/1444
ISSN: 2079-9292
Appears in Collections:Publications From Faculty of Engineering

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