An Optimal Evaluation Model for Grid Short-Circuit Current Limitation Measures

Abstract:

A model for optimally evaluating grid short-circuit current limitation measures is proposed. Based on the fuzzy comprehensive evaluation model, a comprehensive evaluation system is introduced to consider the limiting effect and economy of the limiting measures configure program, also the program's impact on system security is involved. A judgment matrix is constructed to determine the weights of different system layers. With fuzzy behavior indices and membership function being led into, the evaluation of configuration program is given. Taking Gansu power grid for example, the feasibility and practicality of the proposed model are verified by simulation results.

• Periodical: Advanced Materials Research (Volumes 732-733)
• Pages: 782-788
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.732-733.782
• Online since: August 2013
• Authors: Jing Hao Chen, Wen Ying Liu, Wei Zheng, Chen Liang
• Keywords: Fuzzy Behavior Indices, Multi-Level Comprehensive Evaluation Model, Optimal Configuration, Short-Circuit Current

References

[1] Di Wu. Research on Measures to Limit the Short-Circuit Current Level of Large Grid [D]. Hangzhou: Zhejiang University, 2005. (in Chinese).

[2] Juan Yuan, Wenying Liu, Mingqi Dong, et al. Application of Measures Limiting Short Circuit Currents in Northwest China Power Grid [J]. Power System Techonology, 2007, 31(10): 42-45. (in Chinese).

[3] Sarmiento H G, Castellanos R, Pampin G, et al. An Example in Controlling Short Circuit Levels in A Large Metropolitan Area [C]. Power Engineering Society General Meeting, 2003, IEEE. IEEE, 2003, 2.

DOI: 10.1109/pes.2003.1270364

[4] Lili Chen, Minxiang Huang, Hong Zhang, et al. An Optimization Strategy for Limiting Short Circuit Current [J]. Automation of Electric Power Systems, 2009, 33(11): 38-42. (in Chinese).

[5] Yongkang Zhang, Zexiang Cai, Aimin Li, et al. An Optimization Algorithm for Short-circuit Current Limitation of 500 kV Power Grid by Adjusting Power Grid Configuration [J]. Automation of Electric Power Systems, 2009, 33(022): 34-39. (in Chinese).

[6] Lili Chen, Minxiang Huang, Nuo Xu, et al. Optimal Strategy for Short-circuit Current Limiters Deployment Considering Power Flower [J]. High Voltage Engineering, 2010 (6): 1572-1576. (in Chinese).

[7] Shuili Chen, Jinggong Li, Xianggong Wang. Fuzzy Set Theory and Its Applications [M]. Beijing: Science Press, 2005: 23-46. (in Chinese).

[8] Yongxiu He, et al. Power Evaluation Methods and Applications [M]. Beijing: China Electric Power Press, 2011: 146-154. (in Chinese).

[9] Huanchen Zhao, Shubai Xu, Jinsheng He. Analytic Hierarchy Process [M]. Beijing: Science Press, 1986: 5-11. (in Chinese).

[10] Pingyang Wang, Zhaoguang Hu. Fuzzy Mathematics in Power System [M]. Beijing: China Electric Power Press, 1999: 76-89. (in Chinese).