For the non-inductive square wave control,there are some problems such as low control accuracy,large current sampling error,and poor low speed start-up performance.An integrated brushless motor control driver circuit sys-tem based on sensorless FOC is designed.The system takes the high-current gate driver DRV8301 of TI company as the pre-drive core,and designs the digital-analog coupling circuit and the high-end current sampling circuit,which realizes the high integration of the controller and the driver,and reduces the current sampling error.The experimental results show that the designed circuit system can realize the stable output of FOC sine wave,the continuous output power can reach up to kilowatts,and the real-time current monitoring error is not more than 1%.It has the advantages of small size,high burst,high precision control and fast response speed,which can be widely used in industrial automation control and other fields.
关键词
无感FOC/一体式无刷电机控制驱动器/数模耦合电路/DRV8301
Key words
non-inductive FOC/integrated brushless motor control driver/digital-analog coupling circuit/DRV8301
维普
万方数据