TY - JOUR
T1 - Fast Commutation Error Compensation for BLDC Motors Based on Virtual Neutral Voltage
AU - Zhao, Dongdong
AU - Wang, Xipo
AU - Tan, Bo
AU - Xu, Liangcai
AU - Yuan, Cong
AU - Huangfu, Yigeng
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2021/2
Y1 - 2021/2
N2 - Precise commutation signal is the prerequisite for the efficient operation of brushless direct current (BLDC) motors. However, the low-pass filter, nonideal current, circuit, and software retarding can bring about the commutation errors that will deteriorate the performance of BLDC motors, for example, resulting in larger current ripple and noise. To eliminate the commutation errors quickly and improve the performance of the motor, a novel compensation method is proposed in this letter. The compensation time is calculated by a counter. And the start-stop signals of the counter are obtained by the virtual neutral voltage. The proposed method requires none voltage or current sensor and has a faster compensation speed and higher precision than the traditional compensation method based on the integration of virtual neutral voltage. The effectiveness of the proposed method is verified by comparable exp eriments using an 80-W BLDC motor.
AB - Precise commutation signal is the prerequisite for the efficient operation of brushless direct current (BLDC) motors. However, the low-pass filter, nonideal current, circuit, and software retarding can bring about the commutation errors that will deteriorate the performance of BLDC motors, for example, resulting in larger current ripple and noise. To eliminate the commutation errors quickly and improve the performance of the motor, a novel compensation method is proposed in this letter. The compensation time is calculated by a counter. And the start-stop signals of the counter are obtained by the virtual neutral voltage. The proposed method requires none voltage or current sensor and has a faster compensation speed and higher precision than the traditional compensation method based on the integration of virtual neutral voltage. The effectiveness of the proposed method is verified by comparable exp eriments using an 80-W BLDC motor.
KW - Brushless direct current (BLDC) motor
KW - commutation errors
KW - sensorless
KW - virtual neutral voltage
UR - https://www.scopus.com/pages/publications/85092548624
U2 - 10.1109/TPEL.2020.3006536
DO - 10.1109/TPEL.2020.3006536
M3 - 文章
AN - SCOPUS:85092548624
SN - 0885-8993
VL - 36
SP - 1259
EP - 1263
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 2
M1 - 9132662
ER -