STATOR CURRENT CONTROL FOR HIGH-SPEED INDUCTION MACHINES OPERATED FROM INVERTERS WITH LC-OUTPUT-FILTER

Operating modern high-speed spindles directly from an inverter often l eads to intolerable disadvantages. Equipping the inverter with an LC-o utput filter avoids these disadvantages bur, on the other hand, drasti cally increases the system's complexity. Particularly there is no meth od known yet that combines an operation of high-speed spindles via LC- filter with high-quality motion control. In this paper a new robust me thod for stator current control is introduced, which makes field-orien ted motion control easily applicable to such a system.