NDLI: Optimal droop gains assignment for real-time energy management in an islanding microgrid: a two-layer techno-economic approach

Content Provider	IET Digital Library
Author	Khaledian, Amir Ahmadian, Ali Golkar, Masoud Aliakbar
Abstract	Real-time energy management is an important challenge in today's microgrids. In this study, a two-layer techno-economic energy management framework is proposed for an islanding microgrid. The minimisation of operation and emission costs are considered in the first layer procedure. Dynamic performance of dispatchable distributed energy resources is taken into account to improve the load following performance. Optimal operation of the microgrid is considered as an optimisation problem which is solved using modified particle swarm optimisation algorithm. In the second layer, optimal droop gains of micro-resources are assigned based on the combination of gradient descent method and minimum mean square frequency error algorithm. The proposed methodology is applied to a typical microgrid and its performance is evaluated. The simulation results show that using the proposed methodology, the frequency deviation of microgrid is reduced properly so that the results are better than the results of conventional methodology. Moreover, the microgrid energy management and power sharing between micro-sources are more economical in comparison with conventional methods.
Starting Page	2292
Ending Page	2304
Page Count	13
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 9, Jun (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.1718
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-04-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Costing Distributed Power Generation Emission Cost Energy Management System Gradient Descent Method Gradient Method Interpolation And Function Approximation Islanding Microgrid Linear Algebra Mean Square Error Method Minimum Mean Square Frequency Error Algorithm Modified Particle Swarm Optimisation Algorithm Numerical Analysis Operation Cost Minimisation Optimal Droop Optimal Droop Gain Assignment Optimisation Technique Particle Swarm Optimisation Power Generation Economics Power System Economics Power System Managemen Power System Operation Real-time Energy Management Two-layer Techno-economic Approach Two-layer Techno-economic Energy Management Framework
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
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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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