The application discloses a running control method and
system of a direct
drive motor, relates to the technical field of control of the direct
drive motor, and realizes the real-time collection of three-phase
voltage fluctuation data, extracts a
harmonic spectrum in combination with
frequency domain analysis, and preliminarily estimates a
conduction delay and a dead zone compensation time; when low-order
harmonic exceeds a standard, the dead zone compensation is increased to form preliminary optimization parameters; subsequently, neutral point deviation, common-mode
voltage and three-phase
asymmetry are evaluated through waveform
simulation; finally, a
swarm intelligence optimization
algorithm is adopted to iteratively adjust a potential balance correction coefficient, the
conduction delay, the dead zone compensation and a phase-to-phase timing offset angle, target timing parameters are obtained, and three-
phase switching control instructions are generated and applied to a
control system. In the high-power direct
drive motor control, the application realizes the timing design of optimized switching action, effectively reduces
harmonic interference, avoids
system risks caused by potential imbalance, and improves equipment operation stability and reliability.