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Vol: 51(65) No: 1 / March 2006       Motivation for Dynamic Reconfigurable Vector Control Systems Jozsef Vasarhelyi Department of Automation, University of Miskolc, H3515 Miskolc-Egyetemváros, Hungary, phone: (+36-46) 565-111, e-mail: vajo@mazsola.iit.uni-miskolc.hu Maria Imecs Department of Electrical Drives and Robots, Technical University of Cluj-Napoca, Of. Postal 1 PO BOX 99, Cluj-Napoca, Romania, phone: (567) 999-9999, e-mail: imecs@edr.utcluj.ro Keywords: vector control, dynamic reconfiguration. FPGA, embedded systems. Abstract The paper analyses the reconfiguration possibilities of the vector control schemes. First some aspects of system reconfiguration are treated and dynamic reconfiguration is defined. There are defined the hardware constraints of the reconfigurable vector control system for AC drives. There are two cases when reconfiguration should be applied. In one case the reconfiguration is motivated by the fact that the drive can start with better staring conditions and the work with a control system which control more effectively the drive when is working. The second case is treated for the so called tandem inverter, when the drive is supplied from two inverters and on of them fails. When of the inverters fail the control system needs reconfiguration. These cases are treated and finally some simulation results are given. References [1] S. Hauck, “The roles of FPGAs in re-programmable systems”, Proceedings of the IEEE, Vol. 86, No. 4, pp. 615 ­ 639, April 1998. [2] M. Imecs, A. M. Trzynadlowski, I. I. Incze and Cs. Szabó, “Vector control schemes for tandem-converter fed induction motor drives, IEEE Transactions on Power Electronics, Vol. 20, No. 2, pp. 493 – 501, 2005. [3] W. Luk, N. Shirazi and P. Cheung, “Modelling and optimizing run-time reconfigurable systems”, Proceedings of FCCM6, IEEE Computer Society Press, pp. 167 – 176, 1996. [4] P. Lysaght and J. Dunlop, “Dynamic reconfiguration of FPGAs”, In W. R. Moore, W. Luk, Editors, More FPGAs, Abingdon Ee&Cs Books, Oxford, pp. 82 – 94, 1994. [5] J. M. Maciejowski, “Re-configurable control using constrained optimization”, Proceedings of European Control Conference ECC’97, Bruxelles, Belgium, pp. 107 – 130, 1997. [6] W. H. Mangione­Smith and B. L. Hutchings, “Configurable computing: the road ahead”, Proceedings of Reconfigurable Architectures Workshop, pp. 81 – 96, 1997. [7] N. Shirazi, W. Luk and P. Y. K. Cheung, “Run-time management of dynamically reconfigurable designs”, Proceedings of 8th International Workshop FPL’98 Tallinn, Estonia, pp. 59 – 79, 1998. [8] J. Vásárhelyi, Reconfigurable Architectures For Vector Control Structures Of Induction Motor Drives, Report, Technical University of Cluj, Cluj, Romania, 2004, pp. 180. [9] J. Vásárhelyi, “Run-time reconfiguration of AC drive controllers”, Proceedings of Dagstuhl Seminar 0261 on Dynamically Reconfigurable Architectures, Dagstuhl, Germany, 2000. [10] J. Vásárhelyi, M. Imecs and J. J. Incze, “Run-time reconfiguration of tandem inverter used in induction motor drives”, Proceedings of Symposium on Intelligent Systems in Control and Measurement, Veszprém, Hungary, pp. 138 – 143, 2000. [11] J. Vásárhelyi, M. Imecs, J. J. Incze and Cs. Szabó, “Reconfiguration generated perturbations in the vector controlled AC drives”, Proceedings of Power Electronics Intelligent Motion Power Quality Conference PCIM 2002, Nuremberg, Germany pp. 219 – 222, 2002.