Paper Details

This paper presents a three phase sensor less field oriented control for BLDC motor. The proposed sensorless control technique gives the simple and high-performance motor drive. With In addition maximum torque per ampereblock is implemented to optimize torque generation efficiency without power factor angle calculation. The space vectormodulation (SVPWM) of Brushless DC motor (BLDC) is different from that of permanent magnet synchronous motor forits turn-off phase and trapezoidal back electromotive force. To overcome these problems, a SVPWM method is presentedin this paper. The application of SVPWM to Brushless AC drives has been investigated extensively. This paper describesits application to BLDC drives and highlights the essential differences in its implementation, as regards torqueestimation and the representation of the inverter voltage space vectors, this makes more robust against disturbances.This proposed technique is more preferred for small and medium rating applications. This technique is ideal forapplications which require good performance over the wide operating speed rages. It also presents robustness toparameters variation causes by temperature or flux. This paper discusses the theoretical analysis along with simulationresults.

A.V.G.A.MARTHANDA, Dr.G.V.MARUTHESWAR, “A THREE PHASE SENSOR LESS FIELD ORIENTED CONTROL FOR BLDC MOTOR”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 11, pp. 378-384, November 2017.