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Vol: 48(62) No: 1 / March 2003 Control System of Water Supply with Variable Speed Electrical Drives N. Muntean Department of Electrotechnics and Electrical Machines, University "Politehnica" of Timisoara, Faculty of Electrotechnics, Bd. V. Parvan nr. 2, 1900 Timişoara, Romania, phone: (0040) 0256.403450, e-mail: nicolae@lselinux.utt.ro C. Volosencu Department of Automatics and Industrial Informatics, University "Politehnica" of Timisoara, Faculty of Automatics and Computers, Bd. V. Parvan nr. 2, 1900 Timisoara, Romania, phone: (0040) 0256.403239, e-mail: cvolos@aut.utt.ro, web: http://www.aut.utt.ro/~cvolos Keywords: control systems, water supply, variable speed electrical drives, state space control. Abstract This paper presents an industrial application of control systems for two-stage water supply of a city, based on a state space reaction, implemented on a variable speed electrical drives. A modeling and a simulation of the control system are presented. The lower level consumption compared with the control system based on a bipositional controller is proved. References [1] Albert, C. L., Coggan, D.A. - Fundamentals of Industrial Control, Instrument Society of America, 1992. [2] Basmadjian, D. - The Art of Modeling in Science and Engineering, Chapman & Hall/CRC, Boca Raton, 1999. [3] Linnenbrink, H. – Achema’97: Electrische Antriebstechnik, Automatisierungstechnische Praxis 39, 1997. [4] Muntean, N., Boldea, I., Hedes, A. – Variable Speed Drive Equipment, Romanian Patent no. 112219/1996. [5] *** - Pump and Fan Control, Firmware Manual, ABB Industry Oy, 2002. |