NDLI: Improved plug–play SV with virtual inertia for enhancing the stability of high RES-penetrated grids

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Improved plug–play SV with virtual inertia for enhancing the stability of high RES-penetrated grids

Content Provider	IET Digital Library
Author	Elshenawy, Mahmoud Awad Abdelkader, Sobhy Mohamed Amin, Abdelrahman Ahmed Farghal, Soliman Ahmed
Abstract	The synchronverter (SV) is currently one of the most promising grid-friendly inverters that mimic synchronous generators (SGs). Almost all the available SV use virtual current signal for synchronization, which require a complicated controller that lacks plug–play capability. This paper proposes a new generation of self-synchronised SV with a simpler controller, which provides plug–play capability with no need for switching between actual controller current and a virtual current for each ON–OFF process. The proposed SV (PSV) can also share the load with other SGs and SVs and also it is able to take part in regulating system frequency and voltage. A linearised small-signal model is derived for the controller to investigate its stability. The PSV is also validated through multiple simulation studies carried out in MATLAB/Simulink environment. The results show the capability of the PSV to achieve self-synchronisation and plug–play operation without a dedicated PLL or a virtual current. Compared to the current self-synchronised SV, the PSV guarantees a smoother grid connection and gives more accurate reactive power sharing. Moreover, the PSV is applied to a modified IEEE 14-bus test system considering three different contingencies to prove its impact on enhancing system dynamics and stability.
Starting Page	571
Ending Page	580
Page Count	10
Volume Number	2
e-ISSN	25152947
Issue Number	Issue 4, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-stg/2/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-stg.2018.0214
Journal	IET Smart Grid
Publisher	The Institution of Engineering and Technology
Publisher Date	2019-07-17
Access Restriction	Open
Rights License	Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Subject Keyword	Actual Controller Current Complicated Controller Control of Electric Power System Dedicated PLL Distributed Power Generation Grid-friendly Inverter High RES-penetrated Grid Improved Plug–play SV Invertors Multiple Simulation Studies Phase Locked Loop Plug–play Capability Plug–play Operation Power And Energy Control Power Generation Control Power Grid Power System Control Power System Stability PSV Reactive Power Reactive Power Control Self-synchronisation Simpler Controller Smoother Grid Connection Synchronisation Synchronisation Process Synchronous Generator Synchronous Machine System Frequency Virtual Inertia Voltage Control
Content Type	Text
Resource Type	Article

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