Wide-Area Delay-Dependent Adaptive Supervisory Control of Multi-machine Power System Based on Improve Free Weighting Matrix Approach
- 1 School of Electrical Engineering, Wuhan University, Wuhan, China
- 2 School of Electrical Engineering, Wuhan University, Wuhan, China
- 3 School of Electrical Engineering, Wuhan University, Wuhan, China.
- 4 Jiangsu Suzhou Power Supply Company, STATE GRID Corporation of China, Suzhou, China
- 5 School of Electrical Engineering, Wuhan University, Wuhan, China.
- 6 School of Electrical Engineering, Wuhan University, Wuhan, China.
Abstract
The paper demonstrates the possibility to enhance the damping of inter-area oscillations using Wide Area Measurement (WAM) based adaptive supervisory controller (ASC) which considers the wide-area signal transmission delays. The paper uses an LMI-based iterative nonlinear optimization algorithm to establish a method of designing state-feedback controllers for power systems with a time-varying delay. This method is based on the delay-dependent stabilization conditions obtained by the improved free weighting matrix (IFWM) approach. In the stabilization conditions, the upper bound of feedback signal’s transmission delays is taken into consideration. Combining theoriesof state feedback control and state observer, the ASC is designed and time-delay output feedback robust controller is realized for power system. The ASC uses the input information from Phase Measurement Units (PMUs) in the system and dispatches supplementary control signals to the available local controllers. The design of the ASC is explained in detail and its performance validated by time domain simulations on a New England test power system (NETPS).
- P. Kundur, Power system stability and control, New York: McGraw-Hill, 1994.
- G. J. Rogers, “The Application of Power System Stabilizers to a Multi-Generator Plant,” IEEE Transacti Power Systems, Vol. 15, No. 1,2000. doi:10.1109/59.852143
- B. Bhargava, “Synchronized Phasor Measurement System Project at Southern California Edison Co.,” in Proc. IEEE power Engineering Society Summer Meeting, 1999, pp. 16-22.
- H. Ni, G. T. Heydt and L. Mili, “Power System Stability Agents Using Robust Wide Area Control,” IEEE Transacti Power Systems, Vol. 17, No. 4, 2002, pp. 1123-1131.doi:10.1109/TPWRS.2002.805016
- M. E. Aboul-Ela, A. A. Sallam, J. D. McCalley and A. A. Fouad, “Damping Controller Design for Power System Oscillation,”IEEE Transacti Power Systems, Vol. 11, No. 2, , 1996, pp. 767-773. doi:10.1109/59.496152
- M. Klein, L. Le, G. Rogers, S. Farrokpay and N. Balu, “H∞ Damping Controller Design in Large Power System,” IEEE Transacti Power Systems, Vol. 10, No. 1, 1995, pp. 158-166. doi:10.1109/59.373938
- H. Wu, S. Tsakalis and G. T. Heydt, “Evaluation of Time Delay Effects to Wide-area Power System Stabilizer Design,” IEEE Transacti Power Systems, Vol. 19, No. 4, 2004, pp. 1935-1941. doi:10.1109/TPWRS.2004.836272
- B. Chaudhuri, R. Majumder and B. Pal, “Wide Area Measurement Based Stabilizing Control of Power System Considering Signal Transmission Delay,” IEEE Transacti Power Systems, Vol. 19, No. 4, 2004, pp. 1971-1979. doi:10.1109/TPWRS.2004.835669
- B. Chaudhuri, B. Pal, A. C. Zolotas, I. M. Jaimoukha and T. C. Green, “Mixed-sensitivity approach to H∞ control of power system oscillations employing multiple facts devices,” IEEE Transacti Power Systems, Vol. 18, No. 3, 2003, pp. 1149-1156. doi:10.1109/TPWRS.2003.811311
- S. Skogestad and I. Postlethwaite, Multivariable feedback control, John Wiley and Sons, UK, 2001.
- P. Gahinet and P. Apkarian, “A Linear Matrix Inequality Approach to H∞ Control,” International Journal of Robust and Non-linear Control, Vol. 4, No. 4, 1994, pp. 421-448. doi:10.1002/rnc.4590040403
- C. Scherer, P. Gahinet and M. Chilali, “Multi-Objective Output Feedback Control Via LMI Optimization,” IEEE Transacti Automatic Control, Vol. 42, No. 7, 1997, pp. 896-911. doi:10.1109/9.599969
- Jianhua Z, Guolian H, Yunze W, et al., “Networked Control For Robotic Manipulators Via T-S Fuzzy Control And Descriptor Representation,” 2006.