Drive circuit-based torque-ripple suppression method for single-phase BLDC fan motors to reduce acoustic noise

• Published in: IET electric power applications Vol. 13; no. 7; pp. 881 - 888
• Main Authors: Hu, Hong-Jin, Cao, Guang-Zhong, Huang, Su-Dan, Wu, Chao, Peng, Ye-Ping
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 01.07.2019
• Subjects: acoustic noise; brushless DC motors; conventional drive circuits; direct current fan motors; drive circuit‐based torque‐ripple suppression method; fans; finite element analysis; machine control; proposed drive circuits; Research Article; single‐phase BLDC fan motors; single‐phase BLDC motor; torque; torque ripple; direct current fan motors; machine control; drive circuit-based torque-ripple suppression method; single-phase BLDC motor; torque; finite element analysis; conventional drive circuits; fans; proposed drive circuits; single-phase BLDC fan motors; torque ripple; brushless DC motors; acoustic noise

This paper proposes a drive circuit for single-phase brushless direct current (BLDC) fan motors to reduce their acoustic noise. First, the torque ripple of a single-phase BLDC motor is analysed theoretically. Then, a drive circuit that is capable of regulating the DC-link voltage during commutation...