Analiza wybranych stanów przejściowych podczas rozruchu częstotliwościowego synchronicznego silnika reluktancyjnego

The paper deals with computer based simulations of frequency controlled starting up of two pole synchronous reluctance motor with axially laminated, anisotropic rotor. A field-circuit model was used, with magnetic circuit non-linearity taking into account. The model was implemented in Matlab/Simulink environment and is presented in fig. 3 and 4. A series of simulation were done for different values of start up parameters: initial voltage, initial frequency, frequency slope, shaft load, moment of inertia. The simulation results show, that, at some conditions, significant lack of stability may occur during start up. Especially, fast start up at no load, high moment of inertia and low initial voltage may be impossible - the motor pulls out of synchronism. The possible cause of observed occurrence and ways of overcoming that phenomenon, both through a proper control and adequate modification of design, were proposed.