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Wednesday, November 15 • 14:00 - 14:20
A Comparative Study between Droop and Virtual Synchronous Generator based Inverter Control for Voltage and Frequency Regulation in Microgrids

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In a microgrid with large number of distributed generation (DG) units, proper control of grid interfacing inverter is necessary to facilitate safe, stable operation of the system. Droop control is a widely accepted control method in microgrid operation, which can ensure accurate power sharing among DG units in islanded mode and can realize proper power control in grid connected mode. The virtual synchronous generator (VSG) control can provide additional inertia support to the system during disturbance conditions along with emulation of steady state droop characteristics of synchronous generators. In this paper, the droop and VSG methods are evaluated for inverter control in microgrid and compared in terms of their ability to reduce voltage and frequency deviation during disturbance conditions. Several case studies are done to analyze controllers' effectiveness and robustness. Dynamic model of a test microgrid is developed and simulations are carried out in MATLAB/Simulink environment.

Wednesday November 15, 2017 14:00 - 14:20
Salon A/B 180 Portugal Cove Rd, St. John's, NL A1B 2N4, Canada