Multi-Index Nonlinear Coordinated Control of TCBR and Hydro-Generator Excitation

Abstract:

As a new FACTS device, thyristor controlled braking resistor (TCBR) is one of the effective devices to enhance transient stability of generator. In this paper, a coordinated controller for TCBR and hydro-generator excitation system with the multi-index nonlinear coordinate control method based differential geometry theory is proposed. By means of Hartman-Grobman theorem, differential geometry multi-index nonlinear control (DGMINC) design method can reassign the closed-loop system eigenvalues of linear approximate system to the nonlinear system via appropriately selecting output function parameter matrix. Therefore, the system can get good control performance. The simulation results show that TCBR and generator excitation system controlled by this coordinate control strategy can decrease the generator acceleration area rapidly when the severe fault occurred and increase deceleration area significantly after the fault is cleared. So that, power system transient stability limitation improved significantly.

• Periodical: Applied Mechanics and Materials (Volume 704)
• Pages: 199-203
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.704.199
• Online since: December 2014
• Authors: Xiao Cong Li*, Tao Zheng, Zhi Jian Liang, Jun Hua Xu
• Keywords: Generator Excitation, Multi-Index Nonlinear Control, Thyristor Controlled Braking Resistor (TCBR), Transient Stability

References

[1] Prabha Kundur, Power System Stability and Control, Tata McGraw-Hill, New York, (1994).

[2] K. R. Padiyar, Power System Dynamics-Stability and Control, 2nd ed. BS Publications, Hyderabad, India, (2002).

[3] Shelton M L, Winkelman P F, Minkelman W A, et al. Bonneville power administration 1400-MW braking resistor[J]. Power Apparatus and Systems, IEEE Transactions on. 1975, 94(2): 602-611.

DOI: 10.1109/t-pas.1975.31888

[4] Rahim A H M A, Alamgir D A H. A closed-loop quasi-optimal dynamic braking resistor and shunt reactor control strategy for transient stability [J], IEEE Trans on Power Systems, 1988, 3 (3): 879-886.

DOI: 10.1109/59.14536

[5] Fu Rong, Han Jingdong, Ju Ping, et al. Fuzzy neural network control of thyristor controlled braking resistance (TCBR) [J]. Power System Technology, 2001, 25(2): 13-16.

[6] M. H. Ali, T. Murata, and J. Tamura, Effect of fuzzy controlled braking resistor on damping turbine generator shaft torsional oscillations during unsuccessful reclosing, International Review of Electrical Engineering (IREE), vol. 1, no. 5, pp.711-718, December (2006).

DOI: 10.1109/icems12746.2007.4411991

[7] M. H. Ali, T. Murata, and J. Tamura, Effect of coordination of optimal reclosing and fuzzy controlled braking resistor on transient stability during unsuccessful reclosing, IEEE Trans. Power Systems, vol. 21, no. 3, pp.1321-1330, August (2006).

DOI: 10.1109/tpwrs.2006.876670

[8] Sun Yusong, Sun Yuanzhang, Lu Qiang, et al. Research on nonlinear robust control strategy for hydroelectric generator's valve [J]. Proceedings of the CSEE. 2001, 21(2): 56-59.

[9] Rubaai A, Ofoli A R, Cobbinah D, et al. Two-layer supervisory controller-based thyristor-controlled braking resistor for transient stability crisis[J]. Industry Applications, IEEE Transactions on. 2005, 41(6): 1539-1547.

DOI: 10.1109/tia.2005.857465