共 37 条
Fast Commutation Error Compensation for BLDC Motors Based on Virtual Neutral Voltage
被引:27
|作者:
Zhao, Dongdong
[1
]
Wang, Xipo
[1
]
Tan, Bo
[2
]
Xu, Liangcai
[1
]
Yuan, Cong
[1
]
Huangfu, Yigeng
[1
]
机构:
[1] Northwestern Polytech Univ, Sch Automat, Xian 710129, Peoples R China
[2] Xian Technol Univ, Sch Elect Informat Engn, Xian 710021, Peoples R China
关键词:
Commutation;
Brushless DC motors;
Robot sensing systems;
Permanent magnet motors;
Delays;
Brushless direct current (BLDC) motor;
commutation errors;
sensorless;
virtual neutral voltage;
SENSORLESS CONTROL;
DRIVE;
D O I:
10.1109/TPEL.2020.3006536
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
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.
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页码:1259 / 1263
页数:5
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