Simulation of Idle Running Operating Characteristics for Low-Power Asynchronous Motors


The opportunity of this work is backed by the possibility to predetermine the operating characteristics of an asynchronous motor in idle running. This contributes to the realization of a high performance electric drive. An analysis is aimed for low power asynchronous motors used in different types of applications, such as robots, medical equipment and home appliances, transportation systems a.s.o. It is insisted on an advanced mathematical model that provides the best results in simulations and applications [1]. The simulations are important for their quality and preci-sion because they allow us to anticipate the motor behavior and also to establish the errors between the simulation and experimental results. The mathematical model used consid-ered the equations written in the two-axes theory, the rotor quantities being expressed in the fixed stator reference frame. The need for knowledge of qualitative and quantita-tive dynamic behavior related to the field of use determined major investments and extensive research in large laborato-ries. Research on an asynchronous motor with a power of 1.1 kW with variable parameters proved that, between the idle running simulated and experimentally determined val-ues, the errors do not exceed 3.97%. These results authorize the conducted research, providing qualitative and quantita-tive correct simulations for the rated regime. images