Approaches to the Realization of A Virtual Electric Machine Laboratory on Matlab&Simulink

This virtual lab integrates the Matlab&Simulink experimental model, which gives students the opportunity to verify their theoretical knowledge. The paper proposes the development of the Simulink model of the DC motor, aiming to achieve a more effective speed control. We describe the implementation of a virtual lab based on mathematical models. Our virtual lab in Matlab&Simulink in correspondence with the traditional one implies particular advantages: the time allocated to the development of a virtual laboratory is shorter than that required for a classic one, the scalability is wider and the cost is lower. The paper presents with the three main blocks: the excitation, the inductor and the mechanical block. The parameters defining both the transient regime of the excitation circuit (application duration and excitation voltage) and the stabilized operating regime at idle are established. The new transient regime of operation under load is studied, followed by the stabilized regime of operation under load.