The study of Harmonic suppression strategies based on permanent-magnet synchronous servo system

The Harmonics will make the motor generate additional losses, reduce energy efficiency and power factor, affect the normal operation of equipments, and also make the motor generate an electrical fault such as mechanical vibrations and noise, and also interfere with the nearby devices, and reduce their communication quality and EMC, EMI performances. In order to solve the existence of harmonic problems in AC servo motor control system, this paper proposes a low-cost harmonics detection method based on the DSP TMS320F2812, which also uses the corresponding harmonics suppression strategy to achieve purified control voltage and improves the stability and power efficiency of the motor.