1results about How to "Achieve self-alignment" patented technology

This invention relates to the field of electric motor control technology and discloses an electromechanical converter regulation system for compressor drive, comprising: a bus current gradient acquisition unit for acquiring DC bus current gradient; a switching timing calculation unit for reconstructing the switching vector execution timing within the space voltage vector modulation period; and a pulse width signal generation unit for generating switching control signals. When the DC bus current gradient exceeds a preset load mutation threshold, the switching timing calculation unit subtracts the zero vector duration to obtain the adjustment compensation time and injects the adjustment compensation time into the effective vector according to the original ratio of the effective vector. This invention achieves quasi-synchronous offsetting between converter output power and mechanical load fluctuations, compensates for current hysteresis caused by load torque pulsation, suppresses electromagnetic noise, and improves the energy efficiency and robustness of the drive system.