| 摘要 |
FIELD: electricity. ^ SUBSTANCE: present invention pertains to electrical engineering. The device has unit for setting the supply frequency, device for setting frequency on sign, unit for limiting frequency value, unit for setting the coefficient of the linear characteristic voltage/frequency and a voltage regulator, unit for setting the coefficient of inclination of the voltage/frequency characteristic, unit for limiting the maximum current value and regulator of limiting maximum current, three-phase ac voltage transformer, rectifier-converter of three-phase alternating voltage into dc voltage, converter of dc voltage into three-phase ac voltage with regulation of voltage amplitude and frequency on the pulse-duration modulation principle, and stator windings of the machine, to which are connected a current sensor, a toggle-switch for controlling operation of the frequency converter. ^ EFFECT: wider of functional capabilities of the device. ^ 1 dwg |
