NDLI: Energy management in DC microgrid with energy storage and model predictive controlled AC

Content Provider	IET Digital Library
Author	Rana, Md Juel Abido, Mohammad Ali
Abstract	Renewable energy-based direct current microgrids are becoming popular due to their higher energy efficiency than AC microgrids. Energy storage system (ESS) helps to stabilise the system against the instability caused by stochastic nature of the renewable sources as well as demand variation within a microgrid. This work proposes effective energy management and control techniques for a photovoltaic-based DC microgrid. In order to regulate power exchange with the main grid, model predictive controller (MPC) is proposed to control bidirectional voltage source converter. The performance of MPC is compared with classical PI controller. Frequency approach control of hybrid ESS comprising of battery and supercapacitor is used to suppress both low- and high-frequency power variation in the microgrid by exchanging power with DC bus. To confirm the efficacy of proposed control strategy, real-time simulations of the system are carried out considering both grid-connected and islanded modes of the microgrid operation. The results show the effectiveness of the proposed control strategy for energy management in the microgrid. Further, real-time controller hardware-in-the-loop experiment validates the simulation results.
Starting Page	3694
Ending Page	3702
Page Count	9
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 15, Oct (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.1934
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-04-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC-DC Power Converter Battery Storage Plants Bidirectional Voltage Source Converter Control of Electric Power System Distributed Power Generation Energy Control Technique Energy Management System Energy Management Technique Energy Storage System ESS Islanded Mode Model Predictive Controlled AC–DC Converter MPC Optimal Control Other Power Stations And Plant Photovoltaic-based DC Microgrid PI Control PI Controller Power And Energy Control Power Control Power Electronics Power Exchange Regulation Power Supply Power System Control Power System Economics Power System Managemen Power System Operation Power System Stability Predictive Control Renewable Energy Source Renewable Energy-based Direct Current Microgrid Supervisory Circuit Voltage-source Converter
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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