| Title |
A Study on Optimal Current Control Method for Small BLDC Motor Drive |
| Authors |
Chang-Seok Park ; Tae-Uk Jung |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2015.29.4.108 |
| Keywords |
Brushless DC Motor ; Optimal Current ; Maximum Torque ; Motor Drive |
| Abstract |
This paper proposed a optimal current control method to improve efficiency of BLDC motors. The aim of the proposed method is to use the maximum torque operating method by increasing the effective voltage at the maximum torque point unlike existing SPM operating method. The proposed method is based on existing IPM maximum torque operating method grafting onto a square wave operating of SPM motors. As the method of increasing the effective output voltage from inverter using the maximum torque point, the proposed method is to improve efficiency of BLDC motors using the same amount of the existing current effectively. For this method, the maximum torque point is carried out by FEA and analysis of magnetic flux vector. In this paper, the prototype of general-purpose BLDC drive is manufactured and the performance characteristic and validity are verified. |