Abstract
As a new type of microgrid structure, hybrid AC/DC microgrid can efficiently consume photovoltaic-based distributed renewable energy, fitting for the circumstances where electric vehicles work as the main load. Unlike the voltage of AC bus, the DC bus voltage of the hybrid AC/DC microgrid has typical low inertia guaranteed by the power electronic equipment connected to it. Thus, how to enhance the DC bus inertia of hybrid AC/DC microgrid system and improve the stability of DC bus voltage become particularly important. To solve these two problems, this paper presents a flexible method of coordinated control of microgrid bus voltages. The P/U droop characteristics of DC ports of power electronic equipment, such as energy storage and charging and discharging equipment for electric vehicles are taken into account, meanwhile the power reserve rate and energy reserve rate of various distributed renewable energy are comprehensively considered. Under the use of curve translation and other adjustment methods flexibly, DC bus voltage stability is maximized in different working conditions and stable operation of the hybrid AC/DC microgrid system is guaranteed. The validity of the proposed method is also verified by establishing a matlab/simulink simulation system.
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References
Ahmed, M.A., El-Sharkawy, M.R., et al.: Remote monitoring of electric vehicle charging stations in smart campus parking lot. J. Mod. Power Syst. Clean Energy 8(1), 124–132 (2020)
Chen, T., Zhang, X.-P., Wang, J., et al.: A review on electric vehicle charging infrastructure development in the UK. J. Mod. Power Syst. Clean Energy 8(2), 193–205 (2020)
Lu, Z., Jiang, C., Li, X., Zhao, H., et al.: Low-carbon benefit analysis on coordinating investment for clean energy and electric vehicle charging station. Trans. China Electr. Technol. 31(9), 163–171 (2016)
Zhou, T., et al.: Electric vehicle-to-grid technology based on microgrid. Autom. Electr. Power Syst. 42(3), 98–117 (2018)
Atia, R., Yamada, N.: More accurate sizing of renewable energy sources under high levels of electric vehicle integration. Renew. Energy 81, 918–925 (2015)
Li, X., Guo, L., Wang, C., et al.: Key technologies of DC microgrids: an overview. Proc. CSEE 36(1), 2–17 (2016)
Chen, A.: Coordination control and mode switching strategy for hybrid AC/DC microgrid with multi-bus structure. Autom. Electr. Power Syst. 42(17), 175–183 (2018)
Zhou, T., et al.: Analysis on dynamic performance of droop control for multi-terminal VSC based DC distribution system. Autom. Electr. Power Syst. 43(2), 89–96 (2019)
Bi, D., Fan, Z., Xie, D., et al.: Autonomous control strategy of island DC microgrid. Power Syst. Technol. 39(4), 886–891 (2015). (in Chinese)
Sun, F., et al.: Optimized dispatching and control method of droop parameters with assurance of small-signal stability in DC distribution network. Autom. Electr. Power Syst. 42(3), 48–55 (2018)
Mohammed, A., Refaat, S.S., Bayhan, S., Abu-Rub, H.: AC microgrid control and management strategies: evaluation and review. IEEE Power Electron. Mag. 6(2), 18–31 (2019)
Liang, H., Zheng, C., Gao, Y., Li, P.: Research on improved droop control strategy for microgrid. Proc. CSEE 37(17), 4901–4910 (2017)
Gao, F., Bozhko, S.B., Costabeber, A., et al.: Control design and voltage stability analysis of a droop-controlled electrical power system for more electric aircraft. IEEE Trans. Ind. Electron. 64(12), 9271–9281 (2017)
Li, C., Chaudhary, S.K., Savaghebi, M., et al.: Power flow analysis for low-voltage AC and DC microgrids considering droop control and virtual impedance. IEEE Trans. Smart Grid 8(6), 2754–2764 (2017)
Zhang, Y., Li, Y.W.: Energy management strategy for supercapacitor in droop-controlled DC microgrid using virtual impedance. IEEE Trans. Power Electron. 32(4), 2704–2716 (2017)
Meng, L., Dragicevic, T., Vasquez, J.C., et al.: Tertiary and secondary control levels for efficiency optimization and system damping in droop controlled DC-DC converters. IEEE Trans. Smart Grid 6(6), 2615–2626 (2015)
Li, C., Bosio, F., Chen, F., et al.: Economic dispatch for operating cost minimization under real time pricing in droop controlled DC microgrid. IEEE J. Emerg. Sel. Top. Power Electron. 5(1), 587–595 (2017)
Jin, Y., et al.: Small-signal stability analysis of DC distribution network adopting droop control. Autom. Electr. Power Syst. 40(14), 78–85 (2016)
Li, X., Li, Z., et al.: Flexible control and stability analysis of AC/DC microgrids clusters. Proc. CSEE 39(20), 5948–5961 (2019)
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Wang, J., Li, P.Y., Gong, C., Li, D., Fan, C. (2021). Flexible Control Strategy of DC Bus for Hybrid AC/DC Microgrid with Electric Vehicle. In: Xue, Y., Zheng, Y., Bose, A. (eds) Proceedings of 2020 International Top-Level Forum on Engineering Science and Technology Development Strategy and The 5th PURPLE MOUNTAIN FORUM (PMF2020). PMF 2020. Lecture Notes in Electrical Engineering, vol 718. Springer, Singapore. https://doi.org/10.1007/978-981-15-9746-6_8
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DOI: https://doi.org/10.1007/978-981-15-9746-6_8
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