NDLI: AC load bus frequency control of a DC microgrid based on DC voltage regulation using inertia emulation and economic power management

Content Provider	IET Digital Library
Author	Samanta, Soumya Mishra, Jyoti Prakash Roy, Binoy Krishna
Abstract	The use of inertia emulation in a microgrid has been growing as a promising control approach to maintain the bus voltage and frequency. An inertia emulation-based control technique is proposed for a DC microgrid supplying AC loads in this study. The proposed work includes: (i) the DC bus voltage regulation using virtual inertia control and economic power management by a current sharing algorithm in cascade with a restoration control; (ii) AC load bus voltage and frequency regulation using virtual excitation emulation and inertia emulated control that utilises the emulated inertia and DC bus voltage. Further, it also provides inertia support to the grid. The coordinated current sharing algorithm manages the current (power) sharing between the grid and battery pack of electric vehicles based on electricity price and state of charge of the battery. The cascaded restoration control eliminates the steady-state error in the DC bus voltage. Finally, the DC microgrid is simulated under various operating conditions to verify the performance of the proposed control approach. The simulation results reveal that the objectives are achieved successfully.
Starting Page	5117
Ending Page	5128
Page Count	12
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 22, Nov (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/22
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0187
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-09-10
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Load Bus Frequency Control AC Loads Cascaded Restoration Control Control of Electric Power System Control System Analysis Control System Synthesis Coordinated Current Sharing Algorithm DC Bus Voltage Regulation DC Microgrid DC Voltage Regulation Distributed Power Generation Economic Power Management Electric Vehicle Emulated Inertia Frequency Control Frequency Regulation Inertia Emulation-based Control Technique Inertia Support Power Converter Power Generation Control Power Grid Power System Control Promising Control Approach Synthesis Method Transportation Virtual Excitation Emulation Virtual Inertia Control Voltage Control
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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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
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