This paper presents a control strategy for grid-integrated PV/Pico-hydro hybrid system. The PV and Pico-hydro systems are considered in this paper as DG system, which are hybridized for injecting generated power to main grid. As the islanding situation occurs, the DG system is cut off from the main grid, and then, there will be power difference between generation and load demand. This will cause the unstable voltage operation of the system. Hence, a smart load shedding algorithm for islanding is developed in this paper featuring fast load voltage regulation and successful mitigation of unbalanced voltage disturbances. An algorithm for synchronization and grid reconnection is also developed, when the fault is recovered. The transient and steady-state analysis, stability analysis of the proposed grid-integrated hybrid system are performed under the grid disconnection and reconnection to realize that the proposed system, and its control strategies are working well. The harmonic analysis is also performed to indicate the improved power quality of the system.
An Inimitable Control Strategy for Micro-Grid with Fast Voltage Regulation and Voltage Disturbances Mitigation
Lect. Notes Electrical Eng.
2022-10-05
14 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Improved DC-Link Voltage Regulation Strategy for Grid-Connected Converters
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