A Distributed Control Architecture for Autonomous Operation of a Hybrid AC/DC Microgrid System

Document Type : Research Article

Authors

1 Qazvin Science and Research, Islamic Azad University, Qazvin, Iran

2 Faculty of Electrical, Biomedical and Mechatronics Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran

Abstract

Hybrid AC/DC microgrids facilitate the procedure of DC power connection into the conventional AC power system by developing the distributed generations (DGs) technologies. The conversion processes between AC and DC electrical powers are more convenient by hybrid systems. In this paper, an energy management system (EMS) for a hybrid microgrid network is proposed due to the optimal utilization of renewable energy resources. EMS is designed based on two separate control parts, including proportional resonance (PR) and proportional integral (PI) controllers for managing the performance of two distribution generator (DG) and photo-voltaic (PV) sources. The novelty of implemented control scheme is the accurate prediction and recognition of load demand range with considering the DC bus voltage for coordinating the local sources. The advantage of this method is the proper control of both stable and transient states in power-sharing moments. The simulation results verify that the system outputs satisfy the load and power network requirements.

Keywords

Main Subjects

References

[1] M. Liserre, R. Teodorescu, F. Blaabjerg, Stability of photovoltaic and wind turbine grid-connected inverters for a large set of grid impedance values, Power Electronics, IEEE Transactions on, 21(1) (2006) 263- 272.
[2] R. Teodorescu, M. Liserre, P. Rodriguez, Grid converters for photovoltaic and wind power systems, John Wiley & Sons, 2011.
[3] P. Teimourzadeh Baboli, M. Shahparasti, M. Parsa Moghaddam, M.R. Haghifam, M. Mohamadian, Energy management and operation modelling of hybrid AC–DC microgrid, Generation, Transmission & Distribution, IET, 8(10) (2014) 1700-1711.
[4] F. Nejabatkhah, Y.W. Li, Overview of power management strategies of hybrid AC/DC microgrid, Power Electronics, IEEE Transactions on, 30(12) (2015) 7072-7089.
[5] M. Hamzeh, A. Ghazanfari, H. Mokhtari, H.R. Karimi, Integrating hybrid power source into an islanded MV microgrid using CHB multilevel inverter under unbalanced and nonlinear load conditions, Energy Conversion, IEEE Transactions on, 28(3) (2013) 643- 651.
[6]H. Xiao, A. Luo, Z. Shuai, G. Jin, Y. Huang, An Improved Control Method for Multiple Bidirectional Power Converters in Hybrid AC/DC Microgrid, Smart Grid, IEEE Transactions on, 7(1) (2016) 340-347.
[7]M. Hosseinzadeh, F.R. Salmasi, Robust optimal power management system for a hybrid AC/DC micro-grid, IEEE Transactions on Sustainable Energy, 6(3) (2015) 675-687.
[8]H. Mahmood, D. Michaelson, J. Jiang, Decentralized Power Management of a PV/Battery Hybrid Unit in a Droop-Controlled Islanded Microgrid, Power Electronics, IEEE Transactions on, 30(12) (2015) 7215- 7229.
[9]E. Unamuno, J.A. Barrena, Hybrid ac/dc microgrids— Part I: Review and classification of topologies, Renewable and Sustainable Energy Reviews, 52 (2015) 1251-1259.
[10]E. Planas, J. Andreu, J.I. Gárate, I.M. de Alegría, E. Ibarra, AC and DC technology in microgrids: A review, Renewable and Sustainable Energy Reviews, 43 (2015) 726-749.
[11]M. Hosseinzadeh, F.R. Salmasi, Power management of an isolated hybrid AC/DC micro-grid with fuzzy control of battery banks, Renewable Power Generation, IET, 9(5) (2015) 484-493.
[12]R. Rahmani, A. Fakharian, A combination of 3-phase
and dq techniques for controlling the islanded microgrid system: New schemes, in: Electrical Engineering (ICEE), 2015 23rd Iranian Conference on, IEEE, 2015, pp. 1457-1462.
[13] C. Li, C. Cao, Y. Cao, Y. Kuang, L. Zeng, B. Fang, A review of islanding detection methods for microgrid, Renewable and Sustainable Energy Reviews, 35 (2014) 211-220.
[14] P. Wang, C. Jin, D. Zhu, Y. Tang, P.C. Loh, F.H. Choo, Distributed control for autonomous operation of a three-port AC/DC/DS hybrid microgrid, Industrial Electronics, IEEE Transactions on, 62(2) (2015) 1279-1290.
[15] H. Bevrani, S. Shokoohi, An intelligent droop control for simultaneous voltage and frequency regulation in islanded microgrids, Smart Grid, IEEE Transactions on, 4(3) (2013) 1505-1513.
[16] C. Wang, X. Li, L. Guo, Y.W. Li, A nonlinear-disturbance-observer-based DC-bus voltage control for a hybrid AC/DC microgrid, Power Electronics, IEEE Transactions on, 29(11) (2014) 6162-6177.
[17] R. Majumder, A hybrid microgrid with DC connection at back to back converters, Smart Grid, IEEE Transactions on, 5(1) (2014) 251-259.
[18] N. Eghtedarpour, E. Farjah, Power control and management in a hybrid AC/DC microgrid, Smart Grid, IEEE Transactions on, 5(3) (2014) 1494-1505.
[19] M. Farhadi, O. Mohammed, Adaptive energy management in redundant hybrid DC microgrid for pulse load mitigation, Smart Grid, IEEE Transactions on, 6(1) (2015) 54-62.
[20] G. Bayrak, E. Kabalci, Implementation of a new remote islanding detection method for wind–solar hybrid power plants, Renewable and Sustainable Energy Reviews, 58 (2016) 1-15.
[21] R. Rahmani, A. Fakharian, New Control Method of Islanded Microgrid System: A GA & ICA based optimization approach, The Modares Journal of Electrical Engineering, 12(4) (2016) 43-52.
[22] S.J. Pinto, G. Panda, Performance evaluation of WPT based islanding detection for grid-connected PV systems, International Journal of Electrical Power & Energy Systems, 78 (2016) 537-546.
[23]S. Dhar, P. Dash, Adaptive backstepping sliding mode control of a grid interactive PV-VSC system with LCL filter, Sustainable Energy, Grids and Networks, 6 (2016) 109-124.
[24]S. Chowdhury, P. Crossley, Microgrids and active distribution networks, IET, 2009.
AUT Journal of Electrical Engineering
Volume 50, Issue 1
June 2018
Pages 25-32

Files

Share

How to cite

Statistics