© The Institution of Engineering and Technology
The reversible synchronous machines in a pumped station are put into operation frequently for effective operation of the hydro pumped-storage system. The detection of loss-of-excitation (LOE), which is a common failure for synchronous machines, must be guaranteed not only in normal operation, but also under starting and other possible operation conditions. A model of pumped-storage units under the starting condition was developed using the SimPowerSystems in Matlab/Simulink. The simulation results and real tests of a pumped-storage power plant in northeast China were presented. The LOE characteristics during starting were analysed for the first time. Since the frequency of voltage and current runs up gradually from zero to the rated frequency during starting, conventional LOE protections based on impedance under the rated frequency have to be disabled during starting. For this reason, a novel LOE protection was developed based on the R–L time-domain model and the least-square algorithm. Theoretical analysis and simulation tests demonstrate that the proposed LOE protection method is correct and valid.
References
-
-
1)
-
3. Anagnostopoulos, J.S., Papantonis, D.E.: ‘Pumping station design for a pumped-storage wind-hydro power plant’, Energy Convers. Manage., 2007, 48, (11), pp. 3000–3017.
-
2)
-
17. Sivakumar, N., Das, D., Padhy, N.P.: ‘Variable speed operation of reversible pump-turbines at Kadamparai pumped storage plant – a case study’, Energy Convers. Manage., 2014, 78, pp. 96–104 (doi: 10.1016/j.enconman.2013.10.048).
-
3)
-
20. IEEE Std C37.102TM-2006: ‘IEEE guide for AC generator protection’, 2006.
-
4)
-
2. Sivakumar, N., Das, D., Padhy, N.P., et al: ‘Status of pumped hydro-storage schemes and its future in India’, Renew. Sustain. Energy Rev., 2013, 19, pp. 208–213 (doi: 10.1016/j.rser.2012.11.001).
-
5)
-
6. Wang, F., Jiang, J.: ‘A novel static frequency converter based on multilevel cascaded H-bridge used for the startup of synchronous motor in pumped-storage power station’, Energy Convers. Manage., 2011, 52, pp. 2085–2091 (doi: 10.1016/j.enconman.2010.12.018).
-
6)
-
14. Sharaf, A.M., Lie, T.T.: ‘ANN based pattern classification of synchronous generator stability and loss of excitation’, IEEE Trans. Energy Convers., 1994, 9, (4), pp. 753–759 (doi: 10.1109/60.368331).
-
7)
-
1. Rodica, L.: ‘Power system flexibility with electricity storage technologies: a technical-economic assessment of a large-scale storage facility’, Int. J. Electr. Power Energy Syst., 2012, 42, (1), pp. 542–552 (doi: 10.1016/j.ijepes.2012.04.058).
-
8)
-
5. Ma, T., Yang, H., Lu, L.: ‘Feasibility study and economic analysis of pumped hydro storage and battery storage for a renewable energy powered island’, Energy Convers. Manage., 2014, 79, pp. 387–397 (doi: 10.1016/j.enconman.2013.12.047).
-
9)
-
15. Pajuelo, E., Gokaraju, R., Sachdev, M.S.: ‘Identification of generator loss-of-excitation from power-swing conditions using a fast pattern classification method’, IET Gener. Transm. Distrib., 2013, 7, (1), pp. 24–36 (doi: 10.1049/iet-gtd.2012.0340).
-
10)
-
21. Mehrkanoon, S., Falck, T., Suykens, J.A.K.: ‘Approximate solutions to ordinary differential equations using least squares support vector machines’, IEEE Trans. Neural Netw. Learn. Syst., 2012, 23, (9), pp. 1356–1367 (doi: 10.1109/TNNLS.2012.2202126).
-
11)
-
11. Yaghobi, H., Mortazavi, H., Ansari, K., et al: ‘Study on application of flux linkage of synchronous generator for loss of excitation detection’, Int. Trans. Electr. Energy Syst., 2013, 23, pp. 802–817 (doi: 10.1002/etep.1626).
-
12)
-
13. de Morais, A.P., Cardoso, G.Jr., Mariotto, L.: ‘An innovative loss-of-excitation protection based on the fuzzy’, IEEE Trans. Power Deliv., 2010, 25, (4), pp. 2197–2204 (doi: 10.1109/TPWRD.2010.2051462).
-
13)
-
7. Chiang, J.-C., Wu, C.-J., Yen, S.-S.: ‘Mitigation of harmonic disturbance at pumped storage power station with static frequency converter’, IEEE Trans. Energy Convers., 1997, 12, (3), pp. 232–240 (doi: 10.1109/60.629708).
-
14)
-
12. Elsamahy, M., Faried, S.O., Sidhu, T.: ‘Impact of midpoint STATCOM on generator loss of excitation protection’, IEEE Trans. Power Deliv., 2014, 29, (2), pp. 724–732 (doi: 10.1109/TPWRD.2013.2281581).
-
15)
-
9. Konidaris, D.N.: ‘Investigation of back-to-back starting of pumped storage hydraulic generating units’, IEEE Trans. Energy Convers., 2002, 17, (2), pp. 273–278 (doi: 10.1109/TEC.2002.1009480).
-
16)
-
4. Varkani, A.K., Daraeepour, A., Monsef, H.: ‘A new self-scheduling strategy for integrated operation of wind and pumped-storage power plants in power markets’, Appl. Energy, 2011, 88, (12), pp. 5002–5012 (doi: 10.1016/j.apenergy.2011.06.043).
-
17)
-
22. Rahman, M.A., Dash, P.K., Downtor, E.R.: ‘Digital protection of power transformer based on weighted least square algorithm’, IEEE Trans. Power Appar. Syst., 1982, PAS-101, (11), pp. 4204–4210 (doi: 10.1109/TPAS.1982.317365).
-
18)
-
16. ‘SIPROTEC – Multifunctional machine protection 7UM62 manual’, ., 2005.
-
19)
-
19. Lipo, T.A.: ‘Analysis of synchronous machines’ (CRC Press, Salem, MA, 2012).
-
20)
-
10. Mason, C.R.: ‘A new loss-of-excitation relay for synchronous generators’, AIEE Trans. III, Power Appar. Syst., 1949, 68, pp. 1240–1245.
-
21)
-
3. Anagnostopoulos, J.S., Papantonis, D.E.: ‘Pumping station design for a pumped-storage wind-hydro power plant’, Energy Convers. Manage., 2007, 48, (11), pp. 3000–3017.
-
22)
-
18. Li, B., Duan, Z., Wu, J.: ‘Short-circuit analysis of pumped storage unit during back-to-back starting’, IET Renew. Gener., 2015, 9, (2), pp. 99–108 (doi: 10.1049/iet-rpg.2013.0419).
-
23)
-
18. Phadke, G., Kasztenny, B.: ‘Synchronized phasor and frequency measurement under transient conditions’, IEEE Trans. Power Deliv., 2009, 24, (1), pp. 89–95 (doi: 10.1109/TPWRD.2008.2002665).
-
24)
-
8. Osburn, G.D., Atwater, P.L.: ‘Design and testing of a back-to-back starting system for pumped storage hydro generators at Mt. Elbert powerplant’, IEEE Trans. Energy Convers., 1992, 7, (2), pp. 280–288 (doi: 10.1109/60.136222).
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