Novel five-phase fault tolerant permanent magnet motor sensorless control method based on expansion state observer
An expansion state, permanent magnet motor technology, applied in motor control, motor generator control, AC motor control, etc., can solve problems such as back-EMF signal buffeting problems
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[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0071] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0072] Such as figure 1 As shown, a five-phase fault-tolerant permanent magnet motor position sensorless control method based on an extended state observer of the present invention includes the following control steps:
[0073] S1, detect the five-phase current i of the five-phase permanent magnet fault-tolerant motor a ,i b ,i c ,i ...
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