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《Journal of Nanjing University of Aeronautics & Astronautics》 1993-01
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Elevator Driving System with Slip Frequency Control

Zhuang Xinfu Fan Shizuei (Automatic Control Dept. Nanjing Aeronautical Institute Nanjing, 210016)Zhang Lezhi (Suzhou Schindler Elevator Company Limited Suzhou ,215008)  
A variable-voltage variable-frequency (VVVF) elevator driving system controlled by a microcomputer is introduced in the paper. The controller is composed of a 8031 single chip system, while the motor is supplied by a voltage type inverter. The paper gives the principle of speed adjustment by slip irequency control , and sets up the nonlinear digital model of the induction motor. Results are then obtained after searching the possibility and the basic performance of the control project under the digital simulation of the system. In order to verify the results of the simulation, a small power elevator driving system is built. The results of both test and simulation are very close. It is proved that the control project is satisfactory in the follow-up property for giving the speed of the fast elevator driving system.
【CateGory Index】: TM343;;TP39. 9
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