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http://hdl.handle.net/2080/4143
Title: | Enhancement of Power Sharing in an Islanded AC Microgrid Using Modified Reverse Droop Control Strategy |
Authors: | Mishra, Bibhudatta Pattnaik, Monalisa |
Keywords: | Virtual Impedance Reverse Droop Control Frequency Restoration Power Sharing AC Microgrid |
Issue Date: | Dec-2023 |
Citation: | IEEE 3rd International Conference on Smart Technologies for Power, Energy, and Control (STPEC), KIIT, Bhubaneswar, 10th-13th December 2023 |
Abstract: | In this paper, an attempt has been made to share the power more accurately among two parallel inverters using a droop-based decentralized control scheme. One of the key problems in exact power-sharing using reverse droop controller (P-V/Q-f) is line impedance mismatch. It initiates several issues regarding frequency and voltage deviation, circulating current, PCC voltage instability, etc. To cater to such problems a modified virtual impedance control loop is added to the existing P-V/Q-f control loop. The reverse droop control scheme is used on a system of two DGs with the same line impedances and different line impedances. Equal power sharing is achieved with a system having the same line impedance, whereas the existing reverse droop controller fails in a mismatched line impedance condition. Hence, the failure of the existing controller is compensated by the inclusion of an additional virtual impedance-based control loop. A block diagram model has been constructed in MATLAB/SIMULINK domain. The simulation results show that the proposed controller can accurately share the active and reactive power keeping the system frequency and PCC voltage within the prescribed limit for a load transient condition |
Description: | Copyright belongs to proceeding publisher |
URI: | http://hdl.handle.net/2080/4143 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2023_STPEC_BMishra_Enhancement.pdf | 959.91 kB | Adobe PDF | View/Open Request a copy |
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