Abstract
To simplify the transient stability analysis of a large-scale power system and realize real-time emergency control, a fast transient stability simulation algorithm based on real-time dynamic equivalence is proposed. Generator models are grouped and aggregated according to a fast numerical integration. A fast calculation method of the admittance matrix is then proposed to calculate the parameters of an equivalent system, and numerical integration is performed using the obtained equivalent system. Then, based on integral sensitivity, a new fast emergency control strategy is proposed for the equivalent system. The final emergency control strategy is obtained by mapping the control strategy for the equivalent system back to the original system. The results of a simulation on an East China Power System that includes 496 generators and 5075 buses show that the suggested algorithm can output an accurate transient stability simulation result and form an effective emergency control strategy. The proposed algorithm is much faster than the existing solutions and has the potential to be used for online pre-decision.
Similar content being viewed by others
References
Abdelkader SM, 2007. Transmission loss allocation through complex power flow tracing. IEEE Trans Power Syst, 22(4):2240–2248. https://doi.org/10.1109/TPWRS.2007.907586
Chiang HD, 2011. Direct Methods for Stability Analysis of Electric Power Systems: Theoretical Foundation, BCU Methodologies, and Applications. John Wiley & Sons, New York, USA.
Euxibie E, Goubin M, Heilbronn B, et al., 1992. Prospects of application to the French system of fast methods for transient stability and voltage security assessment. Proc CIGRE Conf, p.38–208.
Jiang QY, Wang Y, Geng GC, 2014. A parallel reduced-space interior point method with orthogonal collocation for first-swing stability constrained emergency control. IEEE Trans Power Syst, 29(1):84–92. https://doi.org/10.1109/TPWRS.2013.2275175
Li YQ, Tenglin, Liu WS, et al., 2002. The study on real-time transient stability emergency control in power system. Proc IEEE Canadian Conf on Electrical and Computer Engineering, p.138–143. https://doi.org/10.1109/CCECE.2002.1015188
Nakawiro W, Erlich I, 2009. Optimal load shedding for voltage stability enhancement by ant colony optimization. Proc 15th Int Conf on Intelligent System Applications to Power Systems, p.1–6. https://doi.org/10.1109/ISAP.2009.5352886
Rao MSS, Soman SA, Chitkara P, et al., 2010. Min-max fair power flow tracing for transmission system usage cost allocation: a large system perspective. IEEE Trans Power Syst, 25(3):1457–1468. https://doi.org/10.1109/TPWRS.2010.2040638
Song H, Kezunovic M, 2004. Stability control using PEBS method and analytical sensitivity of the transient energy margin. Proc IEEE Power Systems Conf and Exposition, p.1153–1158. https://doi.org/10.1109/PSCE.2004.1397700
Tian F, Zhang X, Yu ZH, et al., 2016. Online decision-making and control of power system stability based on super-realtime simulation. CSEE J Power Energy Syst, 2(1):95–103. https://doi.org/10.17775/CSEEJPES.2016.00014
Wang XF, Song Y, Irving M, 2008. Modern Power System Analysis. Springer, New York, USA. https://doi.org/10.1007/978-0-387-72853-7
Xue Y, 1993. An emergency control framework for transient security of large power systems. Int Symp on Power Systems, p.120–125.
Xue Y, Pavella M, 1989. Extended equal-area criterion: an analytical ultra-fast method for transient stability assessment and preventive control of power systems. Int J Electr Power Energy Syst, 11(2):131–149. https://doi.org/10.1016/0142-0615(89)90021-5
Xue Y, van Cutsem T, Ribbens-Pavella M, 1988a. A simple direct method for fast transient stability assessment of large power systems. IEEE Trans Power Syst, 3(2):400–412. https://doi.org/10.1109/59.192890
Xue Y, van Cutsem T, Ribbens-Pavella M, 1988b. Real-time analytic sensitivity method for transient security assessment and preventive control. IEE Proc C-Gener Trans Distrib, 135(2):107–117. https://doi.org/10.1049/ip-c.1988.0013
Xue Y, Wehenkel L, Belhomme R, et al., 1992. Extended equal area criterion revisited (EHV power systems). IEEE Trans Power Syst, 7(3):1012–1022. https://doi.org/10.1109/59.207314
Xue Y, Luo Y, Xue F, et al., 1993. On-line transient stability assessment in operation—DEEAC in Northeast China Power System. Proc IEEE Region 10th Int Conf on Computers, Communications and Automation, p.72-76. https://doi.org/10.1109/TENCON.1993.320588
Xue YS, Zhang YW, 1990. Direct transient stability assessment with two-axis generator models. IFAC Proc Vol, 23(8):7–12. https://doi.org/10.1016/S1474-6670(17)51390-7
Yuan Y, Kubokawa J, Sasaki H, 2003. A solution of optimal power flow with multicontingency transient stability constraints. IEEE Trans Power Syst, 18(3):1094–1102. https://doi.org/10.1109/TPWRS.2003.814856
Zhu SM, Wu L, Guan XH, et al., 2016. SCUC-based optimal power tracing approach for scheduling physical bilateral transactions and its verification via an integrated powermoney flow analysis. IET Gener Trans Distrib 10(10): 2399–2409. https://doi.org/10.1049/iet-gtd.2015.1160
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Yi-fan GAO, Jian-quan WANG, Tan-nan XIAO, and Dao-zhuo JIANG declare that they have no conflict of interest.
Rights and permissions
About this article
Cite this article
Gao, Yf., Wang, Jq., Xiao, Tn. et al. Fast emergency control strategy calculation based on dynamic equivalence and integral sensitivity. Frontiers Inf Technol Electronic Eng 20, 1119–1132 (2019). https://doi.org/10.1631/FITEE.1700389
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/FITEE.1700389