NDLI: Impact assessment of virtual synchronous generator on the electromechanical dynamics of type 4 wind turbine generators

Content Provider	IET Digital Library
Author	Tessaro, Heitor José Oliveira, Ricardo Vasques de
Abstract	The de-loaded operation of wind turbine generators (WTGs) with inertial and frequency control considerably affects the dynamics and stability of variable speed wind turbines. In this context, this work proposes a comprehensive assessment of the simultaneous impact of virtual synchronous generator and frequency controllers on the electromechanical dynamics of type 4 WTGs. The proposed power balance formulation and the performed analysis, which are the main contributions of this work, provide insight into the simultaneous impact of the inertial and frequency control on the dynamics of the wind generation unit and system frequency. The assessment has been performed by means of an analytical formulation for the power balance in the WTG, characteristic curves of the wind turbine, and non-linear time-domain simulations of two test systems. The analyses have shown that the speed and torque deviation magnitudes of the wind turbine, as well as the amount of kinetic energy released by the wind turbine, depend on the wind turbine operating point. The study has also shown that the de-loaded operation considerably increases the inertial response capability of WTGs. The integrated inertial and frequency control approach has resulted in well-behaved electromechanical dynamics for the WTG.
Starting Page	5294
Ending Page	5304
Page Count	11
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 23, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/23
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0818
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-10-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Comprehensive Assessment Control of Electric Power System De-loaded Operation Electromechanical Dynamics Frequency Control Frequency Controller Impact Assessment Integrated Inertial Frequency Control Approach Power Balance Formulation Power Generation Control Simultaneous Impact Synchronous Generator Synchronous Machine System Frequency Type 4 Wind Turbine Generator Type 4 WTGs Variable Speed Wind Turbines Virtual Synchronous Generator Wind Generation Unit Wind Power Plant Wind Turbine Wind Turbine Operating Point
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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