NDLI: Coordinated frequency control from offshore wind power plants connected to multi terminal DC system considering wind speed variation

Content Provider	IET Digital Library
Author	Sakamuri, Jayachandra N. Altin, Müfit Hansen, Anca D. Cutululis, Nicolaos A.
Abstract	A coordinated fast primary frequency control scheme from offshore wind power plants (OWPPs) integrated to a three terminal high voltage DC (HVDC) system is proposed in this study. The impact of wind speed variation on the OWPP active power output and thus on the AC grid frequency and DC grid voltage is analysed. The removal of active power support from OWPP after the frequency control action may result in second frequency (and DC voltage) dips. Three different methods to mitigate these secondary effects are proposed, such as, (i) Varying the droop gains of the HVDC converter (ii) Releasing the active power support from OWPP with a ramp rate limiter and (iii) An alternative method for the wind turbine overloading considering rotor speed. The effectiveness of the proposed control scheme is demonstrated on a wind power plant integrated into a three terminal HVDC system developed in DIgSILIENT PowerFactory. The results show that the proposed coordinated frequency control method performs effectively at different wind speeds and minimises the secondary effects on frequency and DC voltage.
Starting Page	1226
Ending Page	1236
Page Count	11
ISSN	17521416
Volume Number	11
e-ISSN	17521424
Issue Number	Issue 8, Jun (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/11/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2016.0433
Journal	IET Renewable Power Generation
Publisher Date	2016-08-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Grid Frequency Active Power Support Control of Electric Power System Coordinated Fast Primary Frequency Control Scheme D.C. Transmission DC Grid Voltage DC Voltage DIgSILIENT PowerFactory Frequency Control HVDC Converter Droop Gain HVDC Power Converter Multiterminal DC System Offshore Installations Offshore Wind Power Plant OWPP Active Power Output Power Generation Control Power Transmission Control Ramp Rate Limiter Rotor Speed Rotors Second Frequency Dips Three-terminal High-voltage DC System Three-terminal HVDC System Wind Power Plant Wind Speed Variation Wind Turbine Wind Turbine Overloading
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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