Penetration Capacity Analysis of Distributed Generation Considering Overcurrent Relay Protection and Flux-Coupling Type FCL

Abstract:

In light of the rapid development of the electric power grid, the integrated application of distributed generation (DG) units can be considered as a key driver. Nevertheless, along with large number of DG units are connected into a distribution network, maybe different kinds of effects are accordingly induced. In particular, regarding the configured relay protection, its selectivity and sensitivity may be affected. In this paper, the penetration capacity analysis of DG considering overcurrent relay protection and flux-coupling type FCL is conducted. Under different fault conditions, the theoretical impacts of introducing DG on the fault current are investigated, and a flux-coupling type FCL is suggested to limit the fault current and potentially enhance the DG’s access capacity. Furthermore, the detailed simulation model of a typical distribution network integrated with the DG and FCL is created. From the simulation results, the employment of the FCL can effectively reduce the fault current’s negative influence on the DG, and improve the DG’s access capacity to a certain extent.

• Periodical: Advanced Materials Research (Volumes 1070-1072)
• Pages: 923-928
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1070-1072.923
• Online since: December 2014
• Authors: Peng Sun, Ming Wu Luo, Zhao Xia Sun, Tian Ci Liu, Chang Hong Deng, Lei Chen, Hao Pan, Feng Zheng
• Keywords: Distributed Generation (DG), FCL, Overcurrent Relay Protection, Penetration Capacity

References

[1] M. Amin Zamani, Tarlochan S. Sidhu and Amirnaser Yazdani, A Protection Strategy and Microprocessor-Based Relay for Low-Voltage Microgrids, IEEE Trans. Power Del., vol. 26, no. 3, pp.1873-1883, (2011).

DOI: 10.1109/tpwrd.2011.2120628

[2] N. Nimpitiwan, G. T. Heydt, R. Ayyanar and S. Suryanarayanan, Fault current contribution from synchronous machine and inverter based distributed generators, IEEE Trans. Power Del., vol. 22, no. 1, p.634–641, (2007).

DOI: 10.1109/tpwrd.2006.881440

[3] B. Hussain, S. Sharkh and S. Hussain, Impact studies of distributed generation on power quality and protection setup of an existing distribution network, in Proc. Int. SPEEDAM, 2010, p.1243–1246.

DOI: 10.1109/speedam.2010.5545061

[4] Waleed K. A. Najy, H. H. Zeineldin and Wei Lee Woon, Optimal Protection Coordination for Microgrids With Grid-Connected and Islanded Capability, IEEE Trans. Ind. Elect., vol. 60, no. 4, pp.1668-1677, (2013).

DOI: 10.1109/tie.2012.2192893

[5] Lei Chen, Yuejin Tang, Zhi Li, Li Ren, Jing Shi and Shijie Cheng, Current Limiting Characteristics of a Novel Flux-Coupling Type Superconducting Fault Current Limiter, IEEE Trans. Appl. Superconduct., vol. 20, no. 3, pp.1143-1146, (2010).

DOI: 10.1109/tasc.2010.2044651

[6] Li Ren, Yuejin Tang, Zhi Li, Lei Chen, Jing Shi, Fengshun Jiao and Jingdong Li, Techno-Economic Evaluation of a Novel Flux-Coupling Type Superconducting Fault Current Limiter, IEEE Trans. Appl. Superconduct., vol. 20, no. 3, pp.1242-1245, (2010).

DOI: 10.1109/tasc.2009.2039784