| 摘要 |
The invention relates to an installation meant for the experimental enhancement of the mechanical characteristics of the induction machine operating as a motor, employed in electric drives. The installation enhancing the mechanical characteristics of the asynchronous machines is characterized in that it comprises a separator (1), a frequency converter (2) which supplies the stator circuit of an asynchronous motor (3), and is used to alter the frequency parameter required in enhancing the family of mechanical characteristics, a mechanical-hydraulic installation (11) providing the resistance couple and the loading of the asynchronous motor (3), a speed transducer (5) which collects the alternating voltage signal uG (t) processed by a rectifying bridge (6), filtered by means of a filter (7, 8) and applied to the input port of the compensator on the channel (Y) of the plotter (10), the same signal being applied to the input port of the operational amplifier (A) and then to the input of the operational amplifier (B) with a J/RC amplification factor, series connected with the former, which makes up the electronic adapter (9) due to which the uM (t) signal is obtained at its output, said signal u M (t) being proportional with the dynamic couple applied to the input port of the compensator on the (X) channel of the plotter (10).
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