TY  - JOUR
T1  - Sensorless Speed Control of FSTPI Fed Brushless DC Motor Drive Using Terminal Voltage Sensing Method
AU - Manikandan, R. AU - Arulmozhiyal, R. AU - Binitha, T.M. 
JO  - International Journal of Soft Computing
VL  - 9
IS  - 4
SP  - 273
EP  - 279
PY  - 2014
DA  - 2001/08/19
SN  - 1816-9503
DO  - ijscomp.2014.273.279
UR  - https://makhillpublications.co/view-article.php?doi=ijscomp.2014.273.279
KW  - Brushless DC motor
KW  -four switch inverter
KW  -sensorless control
KW  -back-emf
KW  -implementation
AB  - This study presents the design to control the speed of permanent 
  magnet brushless DC motor using Sensorless Method. In conventional operation 
  hall sensors are used to detect the position of the rotor windings and according 
  to which the six switches of the voltage source inverter are gated. In Sensorless 
  Method, zero crossing point of back-emf of line voltage differences are measured 
  which will give the information about the phase which is to be energized. The 
  zero crossing instant of back-emf waveforms is estimated indirectly from the 
  measurement of three terminal voltages of the motor, from which correct commutation 
  instants of the six switches are estimated. A Direct Phase Current Control Method 
  is used to control the phase currents in four switches. Cost reduction is achieved 
  by elimination of three hall effect position sensors and the numbers of power 
  switches are reduced to four instead of six. An algorithm for four switch topology 
  is developed with the third winding connected to the neutral of the supply line 
  and performance of the developed sensorless technique is demonstrated by simulation. 
  The hardware implementation is done by using PIC16F877 and the voltage and virtual 
  hall signals are verified.
ER  -