Hybrid multi-agent-based adaptive control scheme for AC microgrids with increased fault-tolerance needs
Open Access
- 6 January 2020
- journal article
- research article
- Published by Institution of Engineering and Technology (IET) in IET Renewable Power Generation
- Vol. 14 (1), 13-26
- https://doi.org/10.1049/iet-rpg.2019.0468
Abstract
This paper presents a fault-tolerant secondary and adaptive primary microgrid control scheme using a hybrid multi-agent system (MAS), capable of operating either in a semi-centralised or distributed manner. The proposed scheme includes a droop-based primary level that considers the microgrid energy reserves in production and storage. The secondary level is responsible for: a) the microgrid units' coordination, b) voltage and frequency restoration and c) calculation of the droop/ reversed-droop coefficients. The suggested architecture is arranged upon a group of dedicated asset agents that collect local measurements, take decisions independently and, collaborate in order to achieve more complex control objectives. Additionally, a supervising agent is added to fulfill secondary level objectives. The hybrid MAS can operate either with or without the supervising agent operational, manifesting fast redistribution of the supervising agent tasks. The proposed hybrid scheme is tested in simulation upon two separate physical microgrids using three scenarios. Additionally, a comparison with conventional control methodologies is performed in order to illustrate further the operation of a hybrid approach. Overall, results show that the proposed control framework exhibits unique characteristics regarding reconfigurability and fault-tolerance, while power quality and improved load sharing are ensured even in case of critical component failure.This publication has 38 references indexed in Scilit:
- Identification of dominant low‐frequency modes in ring‐down oscillations using multiple Prony modelsIET Generation, Transmission & Distribution, 2015
- Secondary Frequency and Voltage Control of Islanded Microgrids via Distributed AveragingIEEE Transactions on Industrial Electronics, 2015
- Multi-agent-based distributed state of charge balancing control for distributed energy storage units in AC microgridsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- Control strategies for a hybrid renewable energy system: A reviewRenewable and Sustainable Energy Reviews, 2015
- A Control Architecture to Coordinate Renewable Energy Sources and Energy Storage Systems in Islanded MicrogridsIEEE Transactions on Smart Grid, 2014
- A Novel Reconfigurable Microgrid Architecture With Renewable Energy Sources and StorageIEEE Transactions on Industry Applications, 2014
- Distributed Control Techniques in MicrogridsIEEE Transactions on Smart Grid, 2014
- Coordinated V-f and P-Q Control of Solar Photovoltaic Generators With MPPT and Battery Storage in MicrogridsIEEE Transactions on Smart Grid, 2014
- Energy-sorted Prony analysis for identification of dominant low frequency oscillationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- Anaerobic treatment of municipal wastewater with a staged anaerobic fluidized membrane bioreactor (SAF-MBR) systemBioresource Technology, 2012