Study and Design of Improved Synchronverter Control Schemes for Distributed Energy Resources

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Name of the Speaker: Hariharan R (EE17D009)
Guide: Dr. Mahesh Kumar
Venue/Online meeting link:
Date/Time: 28th October 2022, 2.30pm

Recently, there has been an increasing focus on control techniques for distributed energy resources (DERs) that emulate the behavior of a synchronous generator (SG). This type of control is known as synchronverter (SV) or virtual synchronous generator (VSG), which has the advantage of better stability. This research involves different improvements to the SV control of DERs under various conditions and configurations, which are briefly given as follows and the same will be presented in the talk. Initially, a simple gradient descent-based pre-synchronization control for SV scheme is proposed, which does not disturb local load connection to DER during the synchronization. The parameters of the proposed method are designed using steady state and transient response analysis, as compared to trial and error parameters tuning in previous virtual current-based methods. Experimental validations are presented for the proposed pre-synchronization control under all initial conditions, transient response analysis, local load changes, and grid integration.