| 摘要 |
A method for controlling the power supplied to a load (1) which is powered by an AC voltage source U with a period T via a generalised phase adjustment system. The method comprises periodically delivering a sequence of p elements to the load (1), in accordance with a predetermined set power, wherein p is an integer and each element comprises ni periods T, where ni is an integer, during which the voltage U is divided symmetrically at an angle alpha i, the consecutive phase angles alpha i and alpha i+1 being different, and the combination of angles alpha 1... alpha i... alpha p being selected in such a way that they provide limitation of a current harmonics, and a flicker effect is maintained in an authorised area. The method is particularly suitable for power control in electric motors.
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