Novel Hybrid Design for Microgrid Control

This paper proposes a new hybrid control system for an AC microgrid. The system uses both centralised and decentralised strategies to optimize the microgrid energy control while addressing the challenges introduced by current technologies and applied systems in real microgrid infrastructures. The well-known 3-level control (tertiary, secondary, primary) is employed with an enhanced hierarchical design using intelligent agent-based components in order to improve efficiency, diversity, modularity, and scalability. The main contribution of this paper is dual. During normal operation, the microgrid central controller (MGCC) is designed to undertake the management of the microgrid, while providing the local agents with the appropriate constraints for optimal power flow. During MGCC fault, a peer-to-peer communication is enabled between neighbouring agents in order to make their optimal decision locally. The initial design of the control structure and the detailed analysis of the different operating scenarios along with their requirements have shown the applicability of the new system in real microgrid environments.This work is supported by the Cyprus Research Promotion Foundation (RPF, Cyprus, Project ΚΟΙΝΑ/ERANETMED/ 1114), the Malta Council for Science and Technology (MCST), the Spain Ministerio de Economía, Industria y Competitividad (MINECO), the Jordan Higher Council for Science and Technology (HCST), the General Secretariat for Research and Technology of Greece (GSRT), the Scientific and Technological Research Council of Turkey (TUBITAK) and the Algeria General Direction of Scientific Research and Technological Development (DGRSDT) through the ERANETMED initiative of Member States, Associated Countries and Mediterranean Partner Countries (3DMgrid Project ID eranetmed_energy-11- 286). © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. 32. A. Bintoudi, L. Zyglakis, T. Apostolos, D. Ioannidis, S. Al-Agtash, J. Martinez-Ramos, A. Onen, B. Azzopardi, L. Hadjidemetriou, N. Martensen, C. Demoulias, D. Tzovaras, "Novel hybrid design for microgrid control", in Proc. IEEE Asia-Pacific Power and Energy Engineering Conference, Bangalore, India, 2017, pp. 1-6. DOI: 10.1109/APPEEC.2017.8308958. https://www.ieee.org/publications_standards/publications/rights/rights_policies.htm