Method for operating a permanent magnet three-phase machine with one rotor and one soft starter and three-phase machine

DE112018008022B4Active Publication Date: 2026-07-16SIEMENS AG
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Patent Information

Application Number
DE112018008022
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-09-26
Filing Date
2018-09-26
Publication Date
2026-07-16
Estimated Expiration
2038-09-26

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Abstract

Method for operating a permanent magnet three-phase machine (M) with a rotor (L) and a soft starter, comprising the steps: S1) Applying several current pulses to two phases (U, V, W) of the three-phase machine (M) until the rotor (L) has aligned itself in a first position; andS2) applying several current pulses to two other phases (U, V, W) of the three-phase machine (M) until the rotor (L) has aligned itself in a different, second position, characterized in that, a) step S2) is repeated iteratively, wherein the two phases (U, V, W) applied with the several current pulses are two different phases (U, V, W) than the two phases (U, V, W) previously applied, b) that in step S2) the two phases to be energized (U, V, W) are chosen such that the rotor (L) of the three-phase machine (M) rotates in the same direction, and c) that the rotor (L) is rotated stepwise in one direction.
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Citation Information

Patent Citations

  • Device for operating synchronous motors and associated method

    DE102010008814A1

  • Method for aligning a three-phase machine having soft start and three-phase machine

    WO2018072810A1