Permanent magnet synchronous motor Hall interval angle compensation method based on Hall sensor

• Main Authors: LIU DAN, SHIBAKAWA SHO, LI KUN, CHEN CHANGJIE
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention relates to the technical field of Hall signal correction, and particularly discloses a permanent magnet synchronous motor Hall interval angle compensation method based on a Hall sensor, which comprises the following steps: S01, obtaining a three-phase Hall original signal, carrying out traditional coordinate transformation, obtaining a transformed Hall vector signal, and obtaining a relation between an actual angle and a deviation angle; s02, analyzing the converted Hall vector signal characteristics, and deducing the relationship between the Hall vector deviation angle and the installation deviation angle; s03, using a novel three-phase difference 60-degree coordinate transformation method to obtain a relationship between a three-phase Hall vector deviation angle and an installation error angle, S04, extracting a three-phase Hall vector phase, and obtaining a relationship between a Hall interval actual angle and the three-phase Hall vector deviation angle through a phase shift difference value