Towards a Hybrid Symbolic/Numeric Computational Approach in Controller Design
- 214 Downloads
Application of general computer algebra systems like MAPLE V® can prove advantageous over conventional ‘numerical’ simulation approach for controller design. In this paper, an approach for the application of hybrid symbolic/numeric computations to obtain explicit equations leading to the design of an output feedback controller is presented. The methodology for controller design using symbolic algebra is exemplified by considering the design of an excitation controller for a simplified model of the synchronous generator connected to an infinite bus. The output feedback controller is obtained from a symbolic full-state feedback controller by eliminating feedback from unmeasurable states using the free parameters in the symbolic feedback gain expressions. The entire analysis is carried out using the MATLAB® symbolic algebra toolbox that supports MAPLE V®.
Unable to display preview. Download preview PDF.
- 1.A. G.(Bram) de Jager, Applications of zero dynamics with symbolic computation, UKACC international conference on control’98, September 1998, pp. 1311–1316.Google Scholar
- 2.H. Baki and N. Munro, Implementation of balanced realisation algorithms in a symbolic environment, UKACC International conference on control’98, pp. 1317–1321.Google Scholar
- 3.E. Kontogiannis and N. Munro, The use of symbolic algebra in robust control, UKACC International conference on control’98, September 1998. pp. 1328–1332.Google Scholar
- 4.D.J. Balance and W. Chen, Symbolic computation in value sets of plants with uncertain parameters, UKACC International Conference on Control’98, September 98, pp. 1322–1327.Google Scholar
- 5.M.T. Soylemez and N. Munro, Pole assignment and symbolic algebra: A new way of thinking, UKACC International Conference on Control’98, September 1998, pp. 1306–1310.Google Scholar
- 6.M. Chetty and K.P Dabke, Symbolic computations: An overview and application to controller design, proceedings of international conference on Information, Decision and Control, Adelaide, 8th-10th February, 1999, pp. 451–456.Google Scholar
- 11.The Mathworks Inc., Symbolic math tool for use with MATLAB, user’s guide, Version 2.Google Scholar
- 12.M.L. Kothari, J. Nanda and K. Bhattacharya, Discrete-mode power system stabilisers, Proc. IEE part-C, Generation Transmission and Distribution, November, 1993, pp. 523–531.Google Scholar
- 13.M. Aldeen and M. Chetty, A dynamic output power system stabiliser, Control’95, October 1997, vol. 2, pp. 575–579.Google Scholar
- 17.P.M. Anderson and A.A. Fouad, Power system control and stability, New York, IEEE press, 1994.Google Scholar