Protection Scheme for DC Microgrid Distribution System

Abstract:

The low voltage DC (LVDC) distribution system is a new concept and a promising technology to be used in the future smart distribution system having high level cost-efficiency and reliability. In this paper, a low-voltage (LV) DC microgrid protection system design is proposed. Usually, an LVDC microgrid must be connected to an ac grid through converters with bidirectional power flow and, therefore, a different protection scheme is needed. This paper describes practical protection solutions for the LVDC network and an LVDC system laboratory prototype is being experimentally tested by MATLAB/SIMULINK. The results show that it is possible to use available devices to protect such a system. But other problems may arise which needs further study.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 1661-1665
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.1661
• Online since: December 2012
• Authors: Ling Hui Deng, Zhi Xin Wang, Jian Min Duan
• Keywords: Distribution System Protection, LVDC, Power Electronics

References

[1] Guo Tianyong, Zhao Gengshen, Zhao Yao, et al. Modeling and Simulation of Microgrid System based on Wind-solar Hybrid[J].Power System Protection and Control, 2010, 38(21):104-108(in Chinese).

DOI: 10.1109/peits.2009.5406813

[2] Wang Zhixin, Zhang Huaqiang. New Development of Wind Energy Generation and Control Strategy[J]. Low Voltage Apparatus, 2009(19): 1-7(in Chinese).

[3] Daniel Salomonsson, Lennart Söder, Ambra Sannino. Protection of Low-voltage DC Microgrids[J]. IEEE Transactions on Power Delivery, 2009, 24(3):1045-1053.

DOI: 10.1109/tpwrd.2009.2016622

[4] WANG Chengshan, WANG Shouxiang. Study on some key problems related to distributed generation systems[J]．Automation of Electric Power Systems，2008，32(20):1-4(in Chinese).

[5] D. Salomonsson, A. Sannino. Comparative Design and Analysis of DC-link-voltage Controllers for Grid-connected Voltage-source Converters [J]. Proc. Conf. Rec. IEEE-Ind. Appl. Soc. Annu. Meeting, New Orleans, LA. 2007,(9):1593-1600.

DOI: 10.1109/07ias.2007.246

[6] D. Salomonsson, A. Sannino. Low-voltage DC Distribution System for Commercial Power Systems with Sensitive Electronic Loads[J]. IEEE Transactions on Power Delivery 2007,22(3): 1620–1627.

DOI: 10.1109/tpwrd.2006.883024

[7] N. Hatziargyriou, H. Asano, R. Iravani, C. Marnay. Microgrids[J]. IEEE Power Energy 2007, 5(4):78-84.

DOI: 10.1109/mpae.2007.376583

[8] Guo Li, Wang Chengshan. Dynamical Simulation on Microgrid of Different Types of Distributed Generations[J]. Automation of Electric Power Systems, 2009,33(2):82-86.

[9] Shi Jie, Zheng Zhanghua, Ai Qian. Modeling of DC Micro-grid and Stability Analysis[J]. Electric Power Automation Equipment 2010,30(2):86-90.

[10] Lu Zongxiang，Wang Caixia，Min Yong，et al. Overview on Microgrid Research [J].Automation of Electric Power Systems, 2007, 31(19):100-107.

[11] Hymiar Hamilton, Noel N. Schulz, Senior Member. DC Protection on the Electric Ship[J]. IEEE Transactions on Power Delivery. 2007:294-300.

[12] Akagi H., Ito Y., Zhongqing Y., DC Micro-grid Based Distribution Power Generation System[J]. The 4th International Power Electronics and Motion Control Conference, 2004. IPEMC. 2004,(3): 1740 - 1745.

[13] S. Brahma, A. Girgis. Development of Adaptive Protection Scheme for Distribution Systems with High Penetration of Distributed Generation[J]. IEEE Trans. Power Delivery, 2004, 19(1):56-63.

DOI: 10.1109/tpwrd.2003.820204

[14] A. Dys´ ko, G.M. Burt, S. Galloway, C. Booth et al. UK Distribution System Protection Issues[J]. IET Gener. Transm. Distrib., 2007, 1(4):679–687.

DOI: 10.1049/iet-gtd:20070054

[15] F. Katiraei, M. Iravani, P. Lehn. Micro-grid Autonomous Operation during and Subsequent to Islanding Process[J]. IEEE Trans. Power Del.2005,20(1):248-257.

DOI: 10.1109/tpwrd.2004.835051

[16] D. Salomonsson and A. Sannino. Low-voltage DC Distribution System for Commercial Power Systems with Sensitive Electronic Loads[J]. IEEE Trans. Power Del. 2007, 22(3): 1620–1627.

DOI: 10.1109/tpwrd.2006.883024