Virtual Oscillator Control of Smart Transformer based Meshed Low Voltage Distribution Grid

Publications

Virtual Oscillator Control of Smart Transformer based Meshed Low Voltage Distribution Grid

Author : Dr Chandan Kumar

Year : 2023

Publisher : Institute of Electrical and Electronics Engineers Inc.

Source Title : 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

Document Type :

Abstract

Distributed generations (DGs) and electric vehicle charging stations (EVCSs) are continuously increasing in the distribution system. These lead to voltage and frequency violations, lower inertia, poor power quality, etc. Smart transformer (ST) with meshed network of distribution lines is considered as an effective solution for improving the performance, stability and flexibility in power flow. However, it requires effective and precise control of power converters. This paper analyzes the performance of an autonomous decentralized virtual oscillator (VO) control strategy for dc-ac converters in ST based meshed distribution system. Moreover, the comparison of time domain-based VO with phasor domain-based droop controlled converters is carried out. Simulation and experimental results are presented to show their active and reactive power-sharing capability, voltage, and frequency at buses during steady state and transient conditions.