Placement of Virtual Synchronous Generator Controlled Electric Storage combined with Renewable Generation

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Title: Placement of Virtual Synchronous Generator Controlled Electric Storage combined with Renewable Generation
Authors: Chen, JunruLiu, MuyangMilano, FedericoO'Donnell, Terence
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Date: 27-Jun-2019
Online since: 2020-08-18T15:15:45Z
Abstract: The virtual synchronous generator (VSG) control of power converters has been proposed to improve the system inertia. The commonly used VSG requires an energy storage (ESS) to provide the emulated inertia power and the frequency droop power. The placement of the ESS can be either in the DC port of the power electronics generation or co-located with the power electronics generation on the AC side. In the former case, the VSG control makes the total generator behave like a synchronous generator, while in the latter one, the VSG control only regulates the ESS in response to the grid frequency. The different placement of the ESS gives rise to different performance. This paper analyzes this performance firstly by means of simple transfer function analysis and secondly by comparing their effects on the grid frequency at the system level in the IEEE 39 bus test system. The results show that the placement of the ESS has no impact on the system transient stability while it has a significant impact on the frequency dynamics especially in the low inertia situation.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2019 IEEE
Keywords: StorageVirtual synchonous generatorPower system simulationHigher wind penetration
DOI: 10.1109/PTC.2019.8810520
Language: en
Status of Item: Peer reviewed
Is part of: The 13th IEEE PowerTech (PowerTech 2019), Milan, Italy, 23-27 June 2019
ISBN: 9781538647226
Appears in Collections:Electrical and Electronic Engineering Research Collection

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