journal article·2016-11-03Open access

An Efficient Approach for Fast and Accurate Voltage Stability Margin Computation in Large Power Grids

Heng-Yi Su

Applied Sciences· Volume 6· Issue 11

Abstract

This paper proposes an efficient approach for the computation of voltage stability margin (VSM) in a large-scale power grid. The objective is to accurately and rapidly determine the load power margin which corresponds to voltage collapse phenomena. The proposed approach is based on the impedance match-based technique and the model-based technique. It combines the Thevenin equivalent (TE) network method with cubic spline extrapolation technique and the continuation technique to achieve fast and accurate VSM computation for a bulk power grid. Moreover, the generator Q limits are taken into account for practical applications. Extensive case studies carried out on Institute of Electrical and Electronics Engineers (IEEE) benchmark systems and the Taiwan Power Company (Taipower, Taipei, Taiwan) system are used to demonstrate the effectiveness of the proposed approach.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Power System Optimization and Stability · Optimal Power Flow Distribution · Power Systems Fault Detection

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrical Engineering, Feng Chia University (FCU), No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan

Funding

Ministry of Science and Technology of Taiwan

References (31)

Show source-provided references
1. Kundur, P. (1994). Power System Stability and Control, McGraw-Hill.
2. Taylor, C.W. (1994). Power System Voltage Stability, McGraw-Hill.
3. A synchrophasor based optimal voltage control scheme with successive voltage stability margin improvement10.3390/app6010014 ↗
4. Definition and classification of power system stability IEEE/CIGRE joint task force on stability terms and definitions10.1109/TPWRS.2004.825981 ↗
5. Voltage stability analysis using static and dynamic approaches10.1109/59.260881 ↗
6. Causes of the 2003 major grid blackouts in north America and Europe, and recommended means to improve system dynamic performance10.1109/TPWRS.2005.857942 ↗
7. Ajjarapu, V. (2006). Computational Techniques for Voltage Stability Assessment and Control, Springer.10.1007/978-0-387-32935-2 ↗
8. Simpson-Porco, J.W., Dörfler, F., and Bullo, F. (2016). Voltage collapse in complex power grids. Nat. Commun.10.1038/ncomms10790 ↗
9. Summary of system protection and voltage stability10.1109/61.400868 ↗
10. A voltage stability security assessment method10.1109/59.736286 ↗
11. Voltage stability condition in a power transmission system calculated by sensitivity methods10.1109/59.99379 ↗
12. A method for calculation of margins to voltage instability applied on the Norwegian system for maintaining required security level10.1109/59.260910 ↗
13. A posturing strategy against voltage instabilities in electric power systems10.1109/59.43177 ↗
14. Voltage stability evaluation using modal analysis10.1109/59.207377 ↗
15. Online monitoring of voltage stability margin using an artificial neural network10.1109/TPWRS.2009.2038059 ↗
16. Regression tree for stability margin prediction using synchrophasor measurements10.1109/TPWRS.2012.2220988 ↗
17. Use of local measurements to estimate voltage-stability margin10.1109/59.780916 ↗
18. Local voltage-stability index using Tllegen’s theorem10.1109/TPWRS.2006.876702 ↗
19. A real-time voltage instability identification algorithm based on local phasor measurements10.1109/TPWRS.2008.922586 ↗
20. Estimating the voltage stability margin using PMU measurements10.1109/TPWRS.2015.2477426 ↗
21. Calculation of the critical loading with nose curve using homotopy continuation method10.1109/59.76701 ↗
22. The continuation power flow: A tool for steady state voltage stability analysis10.1109/59.141737 ↗
23. Point of collapse and continuation methods for large AC/DC systems10.1109/59.221241 ↗
24. CPFLOW: A practical tool for tracing power system steady-state stationary behavior due to load and generation variations10.1109/59.387897 ↗
25. Moghavvemi, M. (1997, January 22–24). New method for indicating voltage stability in power system. Proceedings of the IEEE International Conference on Power Engineering, Singapore.
26. Real-time contingency evaluation and ranking technique10.1049/ip-gtd:19982179 ↗
27. Cupelli, M., Doig Cardet, C., and Monti, A. (2012, January 14–17). Comparison of line voltage stability indices using dynamic real time simulation. Proceedings of the 3rd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies (ISGT Europe), Berlin, Germany.10.1109/ISGTEurope.2012.6465625 ↗
28. Cupelli, M., Doig Cardet, C., and Monti, A. (November, January 30). Voltage stability indices comparison on the IEEE-39 bus system using RTDS. Proceedings of the IEEE International Conference on Power System Technology (POWERCON), Auckland, New Zealand.
29. De Boor, C. (1978). A Practical Guide to Splines, Springer.10.1007/978-1-4612-6333-3 ↗
30. Mathworks, Inc., Mathworks Matlab. Available online: http://www.mathworks.com/.
31. Power Systems Test Case Archive, University of Washington College of Engineering. Available online: http://www.ee.washington.edu/re-serach/pstcal/.