Study on System Loss in Distribution Network with DG

Abstract:

The access of DG changes the operation and structure of traditional distribution network. This study mainly focused on controlling DG output current to reduce network loss of the system. Select a simple radial distribution system as example for theoretical analysis and derive the expressions of load current and node voltage. Assuming that there exists a real number k between DG output current and load. Then list the network loss and voltage deviation expressions. For the purpose of operation optimization, k can be determined by mathematical calculations. It proves that the method has a certain rationality to be effective in controlling network loss.

• Periodical: Applied Mechanics and Materials (Volumes 672-674)
• Pages: 1085-1089
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.672-674.1085
• Online since: October 2014
• Authors: Jia Meng, Zai Lin Piao*, Feng Zhou
• Keywords: Distributed Generation (DG), Network Loss, Operation Optimization, Voltage Offset

References

[1] Yanghua Liu, Zhengqiu Wu, Youqing Tu, et al. A survey on distribution generation and its networking technology. Power System Technology. 32(2008), P71.

[2] Chengshan Wang, Shouxiang Wang. Study on some key problems related to distributed generation systems. Automation of Electric Power Systems. 32(2008), P4.

[3] Chuanquan Liu, Yan Zhang. Distribution network reliability considering distribution generation. Automation of Electric Power Systems, 31(2007), P46.

[4] Metodija Atanasovski, Rubin Taleski. Power summation method for loss allocation in radial distribution networks with DG. IEEE Transactions on Power Systems. Vol. 26( 2011), P2491.

DOI: 10.1109/tpwrs.2011.2153216

[5] E. Rokrok, M.E.H. Golshan. Adaptive voltage droop scheme for voltage source converters in an islanded multi-bus microgrid. IET Generation, Transmission & Distribution, 5(2010), P562.

DOI: 10.1049/iet-gtd.2009.0146

[6] F. Wang, J.L. Duarte, M.A.M. Hendrix. Design and analysis of active power control strategies for distributed generation inverters under unbalanced grid faults. IET Generation, Transmission & Distribution, 19( 2010), P905.

DOI: 10.1049/iet-gtd.2009.0607

[7] Loc Nguyen Khanh, Jae-Jin Seo, Yun-Seong Kim. Power-management strategies for a grid-connected PV-FC hybrid system. IEEE Transactions on Power Delivery, Vol. 25(2010), P1874.

DOI: 10.1109/tpwrd.2010.2047735

[8] Ritwik Majumder, Gerard Ledwich, Arindam Ghosh. Droop control of converter-interfaced microsources in rural distributed generation. IEEE Transaction on Power Delivery, Vol. 25(2010), P 2768.

DOI: 10.1109/tpwrd.2010.2042974