Power Line Communication in Emergency Power Microgrid for Mining Industry

Emergency Power Microgrids are used in Mining operations to supply critical loads. A robust decentralised AC microgrid architecture has been recently proposed by the authors, that provides an automatic and equitable load sharing between distributed generators. This paper focuses on Power Line Communication (PLC) within the decentralised AC microgrid, for added flexibility in case of real-time changes in the microgrid structure and/or distributed generation levels. The proposed PLC is based on using a single and constant PLC frequency. The paper details PLC injection, detection and suppression methods, as well as the overall communication logic. Findings of the paper are confirmed by simulations and experimental results.

[1]  K. Mauch,et al.  Control of parallel inverters in distributed AC power systems with consideration of the line impedance effect , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[2]  S. M. Silva,et al.  Powerline Communication (PLC) through power converter's DC bus: Applicability assessment , 2015, 2015 IEEE 13th Brazilian Power Electronics Conference and 1st Southern Power Electronics Conference (COBEP/SPEC).

[3]  Kashem M. Muttaqi,et al.  An Effective Power Dispatch Strategy for Clustered Micro-grids while Implementing Optimal Energy Management and Power Sharing Control using Power Line Communication , 2019, 2019 IEEE Industry Applications Society Annual Meeting.

[4]  Alfeu J. Sguarezi Filho,et al.  Enabling Smart Grid Concept in Wind Farms by Means of Power Line Communication Technology , 2018, 2018 13th IEEE International Conference on Industry Applications (INDUSCON).

[5]  Ping Yang,et al.  Enhanced Consensus-based Distributed Control for Accurate Reactive Power Sharing of Islanded Microgrids Without LBC lines , 2018, 2018 IEEE 4th Southern Power Electronics Conference (SPEC).

[6]  Ranjan K. Mallik,et al.  A Frequency Control Strategy Using Power Line Communication in a Smart Microgrid , 2019, IEEE Access.

[7]  G. Mirzaeva,et al.  Use of harmonic power line communication to enhance a decentralised control method of parallel inverters in an AC microgrid , 2017, 2017 IEEE Southern Power Electronics Conference (SPEC).

[8]  Hongpeng Liu,et al.  Power Talk: A novel power line communication in DC MicroGrid , 2016, 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia).

[9]  G. Mirzaeva,et al.  Decentralised control of parallel inverters in an AC microgrid using downstream current as an implicit communication method , 2017, 2017 IEEE Southern Power Electronics Conference (SPEC).

[10]  Amaia Arrinda,et al.  The Role of Power Line Communications in the Smart Grid Revisited: Applications, Challenges, and Research Initiatives , 2019, IEEE Access.

[11]  Tomislav Dragicevic,et al.  High-Bandwidth Secondary Voltage and Frequency Control of VSC-Based AC Microgrid , 2019, IEEE Transactions on Power Electronics.

[12]  Nicolas Ginot,et al.  Power Line Communication Management of Battery Energy Storage in a Small-Scale Autonomous Photovoltaic System , 2017, IEEE Transactions on Smart Grid.