MODELING AND CLOSED LOOPCONTROL OF BLDC MOTOR USING ASINGLE CURRENT SENSOR

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

Tony Mathew¹  Caroline Ann Sam¹ 

[1] Dept. of EEE, Rajagiri School of Engineering and Technology

关键词: Brushless DC(BLDC) motor;    current sensor;    DC link;    closed loop control.;   

来源: Research & Reviews

【 摘 要 】

For closed loop current control of BLDC motor, the motor phase currents are measured using current sensors. These sensors are bulky, heavy and expensive. Also the use of different current sensors can cause undesirable imbalance in phase currents as well as torque fluctuations due to differences in current sensor sensitivities. These drawbacks can be avoided by using a single current sensor placed on the DC link. Here an algorithm is presented to obtain the phase current values from the DC link current. The proposed and conventional systems were simulated using MATLAB/Simulink, to compare their performance.

【 授权许可】

Unknown