Analysis of Sliding Mode Observer based SVPWM Inverter Fed BLDC Motor

Author(s):

M.Ramesh Kanna , v.s.b engineering college; S.Sivaranjani, v.s.b engineering college

Keywords:

BLDC Motor, Voltage Source Inverter, Sliding Mode Observer, Direct Torque Control

Abstract:

This paper proposes a sliding mode control scheme for effective speed tracking by obtaining ripple free torque through the inner loop current control for a BLDC motor. Sliding mode observer is a parameter for estimating the phase to phase trapezoidal back-EMF in sensor less mode. BLDC motor drive uses one or more sensors giving positional information to keep synchronization. Such implementation results in a higher drive cost due to sensor wiring and implementation in the motor. This project shows that the torque and speed control of three phase BLDC motors. Using sliding mode observer it is used to estimate the back EMF for sensorless operation. This project proposes, a space vector pulse width modulation(SVPWM) technique is employed to obtain the required output voltage in the line side of the inverter to control the BLDC motor speed and the same was simulated using MATLAB software.

Other Details:

Manuscript Id	:	IJSTEV1I11040
Published in	:	Volume : 1, Issue : 11
Publication Date	:	01/06/2015
Page(s)	:	505-509

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