Similar articles

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.

基于动态等值及数值积分灵敏度的快速紧急控制策略计算

[1]Abdelkader SM, 2007. Transmission loss allocation through complex power flow tracing. IEEE Trans Power Syst, 22(4):2240-2248.

[2]Chiang HD, 2011. Direct Methods for Stability Analysis of Electric Power Systems: Theoretical Foundation, BCU Methodologies, and Applications. John Wiley & Sons, New York, USA.

[3]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.

[4]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.

[5]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.

[6]Nakawiro W, Erlich I, 2009. Optimal load shedding for voltage stability enhancement by ant colony optimization. Proc 15^th Int Conf on Intelligent System Applications to Power Systems, p.1-6.

[7]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.

[8]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.

[9]Tian F, Zhang X, Yu ZH, et al., 2016. Online decision-making and control of power system stability based on super-real- time simulation. CSEE J Power Energy Syst, 2(1):95-103.

[10]Wang XF, Song Y, Irving M, 2008. Modern Power System Analysis. Springer, New York, USA.

[11]Xue Y, 1993. An emergency control framework for transient security of large power systems. Int Symp on Power Systems, p.120-125.

[12]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.

[13]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.

[14]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.

[15]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.

[16]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 10^th Int Conf on Computers, Communications and Automation, p.72-76.

[17]Xue YS, Zhang YW, 1990. Direct transient stability assessment with two-axis generator models. IFAC Proc Vol, 23(8):7-12.

[18]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.

[19]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 power- money flow analysis. IET Gener Trans Distrib 10(10): 2399-2409.