Title :
Standstill estimation of electrical parameters in motors with optimal input signals
Author_Institution :
Dept. of Electr. Eng., Tech. Univ. Dresden, Germany
Abstract :
The paper deals with the problem of the conditions for an optimal accuracy at the application of parameter estimation methods on induction motors at standstill. A discrete-time model of the machine and excitations with voltage steps and pseudo-random-binary signals (PRES) are used. The high influence of the input signal concerning the analysis time, the voltage level and the frequency spectrum to the standard deviation and the nonlinearities of the estimated parameters requires a careful choice of the test conditions. Simulation results are verified by practical tests and comparisons with other machine tests are presented
Keywords :
discrete time systems; induction motor drives; machine control; optimal control; parameter estimation; analysis time; discrete-time model; electrical parameters; frequency spectrum; induction motors; nonlinearities; optimal input signals; parameter estimation methods; pseudo-random-binary signals; standard deviation; standstill estimation; test conditions; voltage level; voltage steps; Frequency estimation; Induction machines; Induction motors; Nonlinear equations; Paper technology; Parameter estimation; Power engineering; Signal processing; Testing; Voltage;
Conference_Titel :
Devices, Circuits and Systems, 1998. Proceedings of the 1998 Second IEEE International Caracas Conference on
Conference_Location :
Isla de Margarita
Print_ISBN :
0-7803-4434-0
DOI :
10.1109/ICCDCS.1998.705873
