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Power Management of Heterogeneous Autonomous DC Microgrid System with EVs Using Modified SoC Reference Based DC Bus Voltage Control

K. M. Bhargavi(1), N. S. Jayalakshmi(2*)

(1) Manipal Institute of Technology, Manipal Academy of Higher Education, Department of Electrical and Electronics Engineering, India
(2) Manipal Institute of Technology, Manipal Academy of Higher Education, Department of Electrical and Electronics Engineering, India
(*) Corresponding author



Due to stochastic and intermittent nature of distributed generation (DG) sources, different types of nonlinear loads, different transmission lines and heterogeneous energy storage devices (ESDs) the direct current (DC) microgrid (MG) system becomes complex and diverse in nature. The battery module of different capacities, different types, different age and of  different state of charge (SoC) makes the system heterogeneous. With the  traditional droop control method, characteristics of the system parameters are homogeneous in nature which neglect the dynamics of different distributed energy resources (DERs) and ESDs. If multiple DERs are present, the dynamics and characteristics of different DERs would be different since the environment is dynamically varying in nature. In this article, modified SoC reference based droop control technique to examine the complex and heterogeneous autonomous DC MG system operation considering multiple DGs is presented. The controller implemented in this paper regulates the DC bus voltage on the basis of interconnected battery bank SoC and it also ensures equal load/power sharing between heterogeneous battery banks and neighbour nodes. The effectiveness of the proposed DC MG system with modified droop controller has been validated by MATLAB/Simulink environment. The simulation result validates the approach presented for hetrogeneous MG system with regulation of DC bus voltage with effective power sharing.
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DC Microgrid; Power Management; Heterogeneous System; Plug In Electric Vehicle; SoC Reference Based Droop Control; Voltage Regulation

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Nordman and K. Christensen, DC Local Power Distribution: Technology, eployment, and Pathways to Success, IEEE Electrification Magazine, Vol. 4, n. 2, June 2016, pp. 29-36.

T. Hakala, T. Lähdeaho and P. Järventausta, “Low-Voltage DC Distribution-Utilization Potential in a Large Distribution Network Company”, IEEE Transactions on Power delivery, Vol. 30, n. 4, August 2015, pp.1694-1701.

Jhunjhunwala, A. Lolla and P. Kaur, “Solar-dc Microgrid for Indian Homes: A Transforming Power Scenario”, IEEE Electrification Magazine, Vol. 4, n. 2, June 2016, pp. 10-19.

Rodriguez-Diaz, J. C. Vasquez and J. M. Guerrero, Intelligent DC Homes in Future Sustainable Energy Systems: When efficiency and intelligence work together, IEEE Consumer Electronics Magazine, Vol. 5, n. 1, January. 2016, pp. 74-80.

Lombana DA, Di Bernardo M., Multiplex PI control for consensus in networks of heterogeneous linear agents. Automatica 67, 2016 May 1, pp. 310-20.

M. S. Rahman, A. M. T. Oo. Distributed multi-agent based coordinated power management and control strategy for microgrids with distributed energy resources, Energy Conversion and Management 139, May 1 2017, pp. 20-32.

S. D. G. Jayasinghe, D. M. Vilathgamuwa and U. K. Madawala A Dual Inverter-Based Supercapacitor Direct Integration Scheme for Wind Energy Conversion Systems, IEEE Transactions on Industry Applications, Vol. 49, n.3, May 2013. pp. 1023-1030.

J. M. Guerrero, P. C. Loh, T. L. Lee and M. Chandorkar, Advanced Control Architectures for Intelligent Microgrids-Part II: Power Quality, Energy Storage, and AC/DC Microgrids, IEEE Transactions on Industrial Electronics, vol. 60, n. 4, April 2013, pp. 1263-1270.

Q. Chen, R. Li and X. Cai, Analysis and Fault Control of Hybrid Modular Multilevel Converter with Integrated Battery Energy Storage System, IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 5, n. 1, March 2017, pp. 64-78.

Kim, H.-1., Han, T-H., Han, B.-M. Operation analysis of stand-alone DC micro-grid with coordinated droop control, ECCE Asia Down Under (ECCE Asia), 2013 IEEE: June 2013, pp.692-698.

Xiaonan Lu, Kai Sun, Josep M. Guerrero, Juan C. Vasquez, and Lipei Huang: Double-quadrant State-of-Charge-Based Droop Control Method for Distributed Energy Storage Systems in Autonomous DC Microgrids, IEEE Transactions on Smart Grid: Vol. 6, n. 1 , January 2015, pp.147-157.

Marcelino F. L., Sathler H. H., Silva W. W., de Oliveira T. R., Donoso-Garcia P. F., A comparative study of Droop Compensation Functions for State-of-Charge based adaptive droop control for Distributed Energy Storage Systems. In Power Electronics for Distributed Generation Systems (PEDG), 2017 IEEE 8th International Symposium on 2017 Apr 17 pp. 1-8.

Xiaonan Lu, Kai Sun, Josep M. Guerrero, Juan C. Vasquez, Lipei Huang, Remus Teodorescu, SoC-Based Droop Method for Distributed Energy Storage in DC Microgrid Applications, IEEE International Symposium on Industrial Electronics, May 28 2012, pp-1640-1645.

Byung-Moon Han Battery SoC-based DC Output Voltage Control of BESS in Stand-alone DC Microgrid, 2016 IEEE Region 10 Conference (TENCON), November 22 2016, pp. 1445-1449.

Qobad Shafiee, Tomislav Dragicevic, Juan C. Vasquez, and Josep M. Guerrero: Hierarchical Control for Multiple DC-Microgrids Clusters, IEEE Transaction on Energy Conversion, Vol.29, n. 4, October 2014, pp. 922–933.

Tomislav Dragicevi.c, Josep M. Guerrero, Juan C. Vasquez, and Davor Skrlec Supervisory Control of an Adaptive-Droop Regulated DC Microgrid with Battery Management Capability, IEEE Transactions on Power Electronics, Vol. 29, n.2, February 1 2014, pp. 695-706.

Xiaonan Lu, Kai Sun, Josep M. Guerrero, Juan C. Vasquez, and Lipei Huang, State-of-Charge Balance Using Adaptive Droop Control for Distributed Energy Storage Systems in DC Microgrid Applications, IEEE Transactions on Industrial Electronics, Vol. 61, n.6, Junuary 2014, pp. 2804-2815.

Le Yi Wang, Caisheng Wang, IEEE, George Yin, Feng Lin, Michael P. Polis, Caiping Zhang and Jiuchun Jiang, Balanced Control Strategies for Interconnected Heterogeneous Battery Systems, IEEE Transactions on sustainable energy, Vol. 7, n. 1, January 2016, pp.189-199.

Bathurst G, Hwang G, Tejwani L. MVDC- the new technology for distribution networks, 11th IET international conference on AC and DC power transmission, pp. 027-5, 2015.

T. Esram and PL. Chapman Comparison of Photovoltaic Array Maximum Power Point Tracking Technique, IEEE Transactions on Energy Conversion, vol. 22, n. 2, June 2007, pp 439-449.

Daniel Zammit, Cyril Spiteri Staines, Alexander Micallef, Maurice Apap MPPT with Current Csontrol for a PMSG Small Wind Turbine in a Grid-Connected DC Microgrid, Research and Innovation on Wind Energy Exploitation in Urban Environment, conference 2017, pp. 205-219, Springer, Cham.

Kedar Patil, Bhinal Mehta Modeling and Simulation of Variable Speed Wind Turbine with Direct Drive Permanent Magnet Synchronous Generator, 2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE), 2014 March 6, pp. 1-6, IEEE.

Nabil, A. Miyatake and M. Miyatake, A Stand-Alone Hybrid Generation System Combining Solar Photovoltaic and Wind Turbine with Simple Maximum Power Point Tracking Control, IEEE 5th International Power Electronics and Motion Control Conference (IPMEC’06), 2006 Aug 14, pp. 1-7.

N. Mars, F. Krouz, F.Louar, L. Sbita Comparison study of different dynamic battery model, International Conference on Green Energy Conversion Systems (GECS), 2017, pp. 1-6). IEEE.

S. Anand and B. G. Fernandes, Reduced-Order Model and Stability Analysis of Low-Voltage DC Microgrid, IEEE Transactions on Industrial Electronics, vol. 60, n. 11, November 2013, pp. 5040-5049.

Aithal A, Wu J. Operation and performance of a medium-voltage DC link. CIRED-Open Access Proceedings Journal. n.1 October 1 2017, pp. 1355-8.

Jayalakshmi N. S, D. N. Gaonkar, Pramod Bhat Nempu Power Control of PV/Fuel Cell/Super capacitor Hybrid System for Stand-Alone Applications, International Journal of Renewable Energy Research, Vol.6, n.2, June 2016, pp.672-679.

Liu X, Wang P, Loh PC, Gao F, Choo FH. Control of hybrid battery/ultra-capacitor energy storage for stand-alone photovoltaic system. In Energy Conversion Congress and Exposition (ECCE), 2010 Sep 12, pp. 336-341. IEEE.

T. Dragicevic, X. Lu, J. Vasquez, and J. Guerrero: DC Microgrids-Part I: A Review of Control Strategies and Stabilization Techniques, IEEE Transactions on Power Electronics, vol. 31, n. 7, July 2016, pp. 4876-4891.

J. Becker and B. Sonnenberg, DC microgrids in buildings and data centers, 2011 IEEE 33rd International Telecommunications Energy Conference (INTELEC), pp. 1-7, October 9. 2011.

Handbook on Cables, Nexans Olex Cable, Victoria, Australia, 2011.

Hart, Daniel W. Power electronics. Tata McGraw-Hill Education, 2011.

Tephiruk, N., Hongesombut, K., Enhancement of Stabilizing Performance of a Microgrid Using Energy Storage System with Under Frequency Relay, (2016) International Review of Electrical Engineering (IREE), 11 (6), pp. 635-643.

Ganesan, E., Dash, S., A New Approach in Modelling and Control of Distributed Energy Resources for Performance Optimisation and Reliability Improvement in a Micro Grid, (2015) International Review on Modelling and Simulations (IREMOS), 8 (1), pp. 26-40.

Sabiri, Z., Machkour, N., El Majdoub, K., Kheddioui, E., Ouoba, D., Ailane, A., An Adaptative Control Management Strategy Applied to a Hybrid Renewable Energy System, (2017) International Review on Modelling and Simulations (IREMOS), 10 (4), pp. 258-267.

Cheddadi, Y., Diouri, O., Gaga, A., Errahimi, F., Es-Sbai, N., Design and Simulation of an Accurate Neural Network State-of-Charge Estimator for Lithium Ion Battery Pack, (2017) International Review of Automatic Control (IREACO), 10 (2), pp. 186-192.

Khamis, A., Mohd Aras, M., Mohd Zambri, M., Ab. Ghani, M., Abdul Rahim, M., Analysis of Microturbine and Battery Storage System in Grid-Connected and Off-Grid Operations, (2016) International Review of Automatic Control (IREACO), 9 (5), pp. 269-278.


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