Evaluation of Virtual Synchronous Generator Compared to Synchronous Generator

Abuagreb, Mohamed; Ajao, Babatunde; Hess, H.L.; Johnson, Brian K.

doi:10.1109/isgt45199.2020.9087692

Cited by 10 publications

(7 citation statements)

References 14 publications

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“…Please follow these instructions as carefully as possible so all articles within a conference have the same style to the title page. This paragraph follows a section title so it should not be indented [2][3]. As mentioned in the abstract from this paper, VSG needs to emulate one of the SG model's main characters: the stator voltage equation, especially when the parallel operation of a VSG and SG is required.…”

Section: Third-order Vsg Model Descriptionmentioning

confidence: 99%

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Sharing VSG Operation with Synchronous Generator

Hasabelrasul

Cai

Sun

et al. 2022

J. Phys.: Conf. Ser.

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While several synchronous generators (SGs) are substituted through virtual synchronous generators (VSGs), some SGs remain in today’s microgrids. And the majority of the research assumes that VSG mimics SG characteristics, allowing it to function in parallel among SGs. However, few studies have gone to great lengths to study this concept. As a result, the paper’s goal system is a microgrid that runs both VSG and regular SG in parallel. In this article, new parameters for the VSG are designed in parallel with the SG. Then, in an independent microgrid, identical VSG-VSG and scenario SG-VSG configurations are fixed to equate the complex activity. The emotional responses contrasted when the load requirement is shared fairly and proportionally.

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Section: Third-order Vsg Model Descriptionmentioning

confidence: 99%

“…Distributed generation (DGs) using renewable energy sources (RES) has been developed in recent years [1][2][3]. A dispatchable small (SG) using a diesel engine or a gas engine is typically used as the main power supply in a remote microgrid where the primary grid is not available.…”

Section: Introductionmentioning

confidence: 99%

Sharing VSG Operation with Synchronous Generator

Hasabelrasul

Cai

Sun

et al. 2022

J. Phys.: Conf. Ser.

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“…As the existing grid-tied power converters mostly use current source control, the overall equivalent inertia and frequency stability of modern power systems are greatly reduced [4,5]. To address this concern, scholars have proposed Virtual Synchronous Generator (VSG) technology [6][7][8][9][10][11][12], which provides inertia and damping to the grid by simulating the motion equations of a synchronous generator. Therefore, the power electronic converters will have the same external characteristics as synchronous generators.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Offline Transient Power Oscillation and Its Suppression Method in the Microgrid with Multiple Virtual Synchronous Generators

Shan,

Yang,

2023

Energies

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When multiple Virtual Synchronous Generators (VSGs) operate in parallel in an islanded grid, power and frequency oscillations will occur when one VSG goes offline. However, the existing literature does not cover the related analysis and transient suppression schemes for this scenario. To analyze these complex high-order system dynamics, this paper first establishes an intuitive equivalent circuit model for multiple VSGs, and the frequency domain expressions of the multi-machine VSG system during the VSG offline transient simulation are then derived. Based on the multi-VSG model and its transient oscillations analysis, this paper further proposes a configuration scheme for the equivalent circuit parameters. Equivalently, the virtual inertia, damping coefficient and virtual impedance of the VSGs can be configured. With the proposed parameter configuration scheme, the power oscillation during the VSG offline transient can be eliminated, as verified by experiments with a microgrid lab platform using three VSGs. Compared with the existing multi-VSG studies, the proposed scheme is not only the first attempt to study the transient suppression when a VSG goes offline, but also is more intuitive in analysis and less complicated in the controller parameter tuning.

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“…In terms of virtual governor and virtual AVR, they enable the SSSG to participate in the frequency and voltage regulation using droop characteristics like implementation in the actual governor and AVR. However, whether the time constant of the physical parts should be emulated leads to different models of the SSSG [30,34]. Meanwhile, various feedback signals such as the reactive power and capacitor voltage may be used to establish the droop characteristics, which enriches the categories of the virtual AVR as well [35].…”

Section: Modeling Of Solid-state Sgmentioning

confidence: 99%

“…Especially, the most popular 2nd-order simplified model cannot reflect any transient and sub-transient behavior of the SG. The differences between the SSSG and SG have been observed and studied by some simulation analysis [34]. Second, the dynamics among different SSSGs are not identical as well.…”

Section: Modeling Of Solid-state Sgmentioning

confidence: 99%

Modeling and Control of Solid-State Synchronous Generator

Chen¹

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Evaluation of Virtual Synchronous Generator Compared to Synchronous Generator

Cited by 10 publications

References 14 publications

Sharing VSG Operation with Synchronous Generator

Sharing VSG Operation with Synchronous Generator

Analysis of Offline Transient Power Oscillation and Its Suppression Method in the Microgrid with Multiple Virtual Synchronous Generators

Modeling and Control of Solid-State Synchronous Generator

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