© The Institution of Engineering and Technology
Transient excitation boosting control (TEBC) is a cost-effective emergency control technique to improve the power system transient stability. However, it is found in this study that the conventional TEBCs have some drawbacks and may be ineffective or even worsen the system stability in some cases. To overcome these problems, a novel wide-area measurement system (WAMS)-based TEBC (WTEBC) is proposed in this study. The proposed control law is as follows: boosting the excitation of the critical machines (CMs) in the critical swing and stopping their excitation boosting as the rotor angles of the CMs drop below a threshold after the critical swing. The implementations of the above control law in the special protection system are also provided. The simulation results from the 4-machine system and the China Southern power grid prove the superiority of the WTEBC over the conventional TEBCs. Furthermore, it also indicates that the stabilising effect is quite significant as long as the round-trip WAMS delay is <0.3 s, which further confirms the feasibility of the WTEBC in the practical engineering.
References
-
-
1)
-
1. Kundur, P.: ‘Power system stability and control’ (McGraw-Hill, New York, 1994).
-
2)
-
12. Taylor, C.W., Mechenbier, J.R., Matthews, C.E.: ‘Transient excitation boosting at Grand Coulee third power plant: power system application and field tests’, IEEE Trans. Power Syst., 1993, 8, (3), pp. 1291–1298 (doi: 10.1109/59.260865).
-
3)
-
16. Yang, Q., Bi, T., Wu, J.: ‘WAMS implementation in China and the challenges for bulk power system protection’. 2007 Power Engineering Society General Meeting, 2007.
-
4)
-
8. Liu, C.: ‘Laboratory verification of an excitation control system for increasing power transfer capability’, Int. J. Electr. Power Energy Syst., 1983, 5, (2), pp. 127–134 (doi: 10.1016/0142-0615(83)90017-0).
-
5)
-
19. Zhang, M., Lu, Q.: ‘A speculation on hybrid control system of super-EMS of China Southern power grid’, Power Syst. Technol., 2007, 31, (18), pp. 5–9.
-
6)
-
10. Lennon, C.A.: ‘Test results for transient excitation boosting at Grand Coulee’, IEEE Trans. Energy Convers., 1991, 6, (3), pp. 367–372 (doi: 10.1109/60.84308).
-
7)
-
9. Genc, I., Diao, R., Vittal, V., Kolluri, S., Mandal, S.: ‘Decision trees-based preventive and corrective control applications for dynamic security enhancement in power systems’, IEEE Trans. Power Syst., 2010, 25, pp. 1611–1619 (doi: 10.1109/TPWRS.2009.2037006).
-
8)
-
11. Osburn, G.D., Lennon, C.A.: ‘Transient excitation boosting at Grand Coulee third powerplant’, IEEE Trans. Energy Convers., 1992, 7, (2), pp. 289–294 (doi: 10.1109/60.136223).
-
9)
-
15. Xue, Y., Ribbens-Pavella, M.: ‘Critical-cluster identification in transient stability studies’, IEE Proc., Gener. Transm. Distrib., 1993, 140, (6), pp. 481–489 (doi: 10.1049/ip-c.1993.0070).
-
10)
-
9. Liu, C., Yan, A.: ‘Transient stability improvement using discrete excitation control’. Proc. of IEEE 11th Int. Conf. on Research, Development and Application in Electrical and Electronic Engineering, 1984.
-
11)
-
M.H. Haque
.
Improvement of first swing stability limit by utilizing full benefit of shunt FACTS devices.
IEEE Trans. Power Syst.
,
4 ,
1894 -
1902
-
12)
-
Y. Xue ,
T.V. Cutsem ,
M. Ribbens-Pavella
.
Extended equal area criterion justifications, generalizations, applications.
IEEE Trans. Power Syst.
,
1 ,
44 -
52
-
13)
-
18. Zhou, J., Zhang, D., Yu, Y., Wu, J., Zhou, J., Bi, T., Xiong, M.: ‘Rotor position measurement method for generator power angles’. 2011 Int. Conf. on Advanced Power System Automation and Protection, 2011.
-
14)
-
Y. Xue ,
T. Van Cutsem ,
M. Ribbens-Pavella
.
A simple direct method for fast transient stability assessment of large power systems.
IEEE Trans. Power Syst.
,
2 ,
400 -
412
-
15)
-
7. Bayne, J.P., Kundur, P., Watson, W.: ‘Static exciter control to improve transient stability’, IEEE Trans. Power Appl. Syst., 1975, 94, (4), pp. 1141–1146 (doi: 10.1109/T-PAS.1975.31948).
-
16)
-
3. Pavella, M., Ernst, D., Ruiz-Vega, D.: ‘Transient stability of power systems: a unified approach to assessment and control’ (Kluwer Academic Publishers, Norwell, 2000).
-
17)
-
17. Wu, J., Zhou, J., Zhang, D., Wang, Z., Xu, S.: ‘PMU standard of China’. 2008 IEEE Asia Pacific Conf. on Circuits and Systems, 2008.
-
18)
-
6. Zweigle, G.C., Venkatasubramanian, V.: ‘Wide-area optimal control of electric power systems with application to transient stability for higher order contingencies’, IEEE Trans. Power Syst., 2013, 28, (3), pp. 2313–2320 (doi: 10.1109/TPWRS.2012.2233764).
-
19)
-
2. Savulescu, S.C.: ‘Real-time stability assessment in modern power system control centers’ (Wiley, New York, 2009).
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-gtd.2014.1030
Related content
content/journals/10.1049/iet-gtd.2014.1030
pub_keyword,iet_inspecKeyword,pub_concept
6
6