Hierarchical Control of a Low Voltage DC Microgrid with Coordinated Power Management Strategies
Received: 15 November 2021 | Revised: 2 December 2021 | Accepted: 4 December 2021 | Online: 12 February 2022
Corresponding author: S. Muchande
Abstract
A microgrid consists of a cluster of renewable energy sources, energy storage elements, and loads. One of the main objectives of a microgrid is to provide reliable and high-quality power to the loads. Under normal operating conditions, this is achieved through suitable Power Management Strategy (PMS). However, under emergency conditions, such as the failure of any source, overloads, or faults, the PMS may not be able to retain the microgrid in operating conditions. Any emergency condition may demand a significant change in control and coordination between various subsystems of the microgrid to survive and continue the operation. This feature makes a microgrid "a fault resilient" system as visualized in its objectives. This paper proposes a novel Coordinated Power Management (CPM) strategy based on three-layer hierarchical control for an autonomous Low Voltage DC (LVDC) microgrid. The proposed CPM strategy ensures the continuation of the microgrid operation under normal and emergency conditions. An emergency control layer is established to extend the microgrid operation during an emergency condition. The performance of the proposed control scheme is validated through simulation and experimental results.
Keywords:
coordinated power management, DC microgrid, hierarchical control, fault resilient systemDownloads
References
X. Lu, K. Sun, J. M. Guerrero, J. C. Vasquez, and L. 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, no. 6, pp. 2804–2815, Jun. 2014. DOI: https://doi.org/10.1109/TIE.2013.2279374
A. Khorsandi, M. Ashourloo, and H. Mokhtari, "A Decentralized Control Method for a Low-Voltage DC Microgrid," IEEE Transactions on Energy Conversion, vol. 29, no. 4, pp. 793–801, Dec. 2014. DOI: https://doi.org/10.1109/TEC.2014.2329236
P. Prabhakaran, Y. Goyal, and V. Agarwal, "Novel Nonlinear Droop Control Techniques to Overcome the Load Sharing and Voltage Regulation Issues in DC Microgrid," IEEE Transactions on Power Electronics, vol. 33, no. 5, pp. 4477–4487, May 2018. DOI: https://doi.org/10.1109/TPEL.2017.2723045
D.-H. Dam and H.-H. Lee, "A Power Distributed Control Method for Proportional Load Power Sharing and Bus Voltage Restoration in a DC Microgrid," IEEE Transactions on Industry Applications, vol. 54, no. 4, pp. 3616–3625, Jul. 2018. DOI: https://doi.org/10.1109/TIA.2018.2815661
P. D. Chung, "Retaining of Frequency in Micro-grid with Wind Turbine and Diesel Generator," Engineering, Technology & Applied Science Research, vol. 8, no. 6, pp. 3646–3651, Dec. 2018. DOI: https://doi.org/10.48084/etasr.2413
R. Eslami, S. H. H. Sadeghi, and H. A. Abyaneh, "A Probabilistic Approach for the Evaluation of Fault Detection Schemes in Microgrids," Engineering, Technology & Applied Science Research, vol. 7, no. 5, pp. 1967–1973, Oct. 2017. DOI: https://doi.org/10.48084/etasr.1472
S. Anand, B. G. Fernandes, and J. Guerrero, "Distributed Control to Ensure Proportional Load Sharing and Improve Voltage Regulation in Low-Voltage DC Microgrids," IEEE Transactions on Power Electronics, vol. 28, no. 4, pp. 1900–1913, Apr. 2013. DOI: https://doi.org/10.1109/TPEL.2012.2215055
S. Peyghami, H. Mokhtari, P. Davari, P. C. Loh, and F. Blaabjerg, "On Secondary Control Approaches for Voltage Regulation in DC Microgrids," IEEE Transactions on Industry Applications, vol. 53, no. 5, pp. 4855–4862, Sep. 2017. DOI: https://doi.org/10.1109/TIA.2017.2704908
T. Dragičević, J. M. Guerrero, J. C. Vasquez, and D. Škrlec, "Supervisory Control of an Adaptive-Droop Regulated DC Microgrid With Battery Management Capability," IEEE Transactions on Power Electronics, vol. 29, no. 2, pp. 695–706, Feb. 2014. DOI: https://doi.org/10.1109/TPEL.2013.2257857
S. Muchande and S. Thale, "Design and Implementation of Autonomous Low Voltage DC Microgrid with Hierarchical Control," in 2020 IEEE First International Conference on Smart Technologies for Power, Energy and Control (STPEC), Nagpur, India, Sep. 2020. DOI: https://doi.org/10.1109/STPEC49749.2020.9297748
R. Pradhan, M. Chirayath, and S. Thale, "Coordinated control strategy for a DC microgrid with low bandwidth communication," in 2016 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Trivandrum, India, Dec. 2016. DOI: https://doi.org/10.1109/PEDES.2016.7914276
R. R. Deshmukh, M. S. Ballal, H. M. Suryawanshi, and G. G. Talapur, "A control algorithm for energy management and transient mitigation in DC microgrid," in 2017 National Power Electronics Conference (NPEC), Pune, India, Dec. 2017, pp. 270–275. DOI: https://doi.org/10.1109/NPEC.2017.8310470
B. R. Naidu, G. Panda, and P. Siano, "A Self-Reliant DC Microgrid: Sizing, Control, Adaptive Dynamic Power Management, and Experimental Analysis," IEEE Transactions on Industrial Informatics, vol. 14, no. 8, pp. 3300–3313, Aug. 2018. DOI: https://doi.org/10.1109/TII.2017.2780193
Seema and B. Singh, "PV-Hydro-Battery Based Standalone Microgrid for Rural Electrification," in 2018 5th IEEE Uttar Pradesh Section International Conference on Electrical, Electronics and Computer Engineering (UPCON), Gorakhpur, India, Nov. 2018. DOI: https://doi.org/10.1109/UPCON.2018.8597005
S. S. Thale, R. G. Wandhare, and V. Agarwal, "A Novel Reconfigurable Microgrid Architecture With Renewable Energy Sources and Storage," IEEE Transactions on Industry Applications, vol. 51, no. 2, pp. 1805–1816, Mar. 2015. DOI: https://doi.org/10.1109/TIA.2014.2350083
T. V. Krishna, M. K. Maharana, and C. K. Panigrahi, "Integrated Design and Control of Renewable Energy Sources for Energy Management," Engineering, Technology & Applied Science Research, vol. 10, no. 3, pp. 5857–5863, Jun. 2020. DOI: https://doi.org/10.48084/etasr.3613
D. Q. Oliveira, A. C. Zambroni de Souza, A. B. Almeida, M. V. Santos, B. I. L. Lopes, and D. Marujo, "Microgrid management in emergency scenarios for smart electrical energy usage," in 2015 IEEE Eindhoven PowerTech, Eindhoven, Netherlands, Jun. 2015. DOI: https://doi.org/10.1109/PTC.2015.7232309
M. AlOwaifeer, A. Alamri, and A. P. S. Meliopoulos, "Microgrid Energy Management System for Normal and Emergency Operating Conditions," in 2019 North American Power Symposium (NAPS), Oct. 2019. DOI: https://doi.org/10.1109/NAPS46351.2019.9000218
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