Abstract: A sensorless commutation error compensation system for a brushless motor, comprises: a brushless motor (200) and a commutation logic module circuit (100). The commutation logic module circuit (100) is connected to three virtual Hall signal output ends of the brushless motor (200), and used for receiving three virtual Hall signals output by the brushless motor (200), obtaining three error compensation angle signals on the basis of the three virtual Hall signals, respectively superimposing the three error compensation angle signals and the three virtual Hall signals to form superposition results, and controlling the brushless motor (200) to adjust commutation timing on the basis of the superposition results, so as to achieve commutation error compensation.
Type:
Application
Filed:
July 22, 2020
Publication date:
June 8, 2023
Applicants:
Ningbo Institute of Technology, Beihang University, Beihang University
Inventors:
Gang Liu, Hao Jin, Shiqiang Zheng, Haitao Li, Tong Wen, Sha He