TY  - JOUR
T1  - Sensor Less Control of Position and Displacements of Bearing Less
Switched Reluctance Motor by using Sliding Mode Observer
AU - Rao Pulivarthi, Nageswara AU - Siva Krishna Rao, G.V. AU - Nagesh Kumar, G.V. 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 6
SP  - 1492
EP  - 1498
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.1492.1498
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.1492.1498
KW  - Asymmetric converter
KW  -hysteresis controller
KW  -rotor displacement
KW  -sliding mode observer
KW  -BSRM
KW  -appropriate
AB  - In this study, a novel indirect sensorless sliding mode observer based displacement and position
sensing techniques are proposed for Bearing less Switched Reluctance Motor (BSRM) to avoid the limitations
of the mechanical sensors and to get the fast dynamic response for high-speed operations. To get fast
convergence and more robustness against parameter variations in view of both mechanical and electrical
disturbances, the sliding mode observer design is very appropriate for the BSRM. The conventional on-off
hysteresis current controller and asymmetric converters are used for the estimation of position and
displacements. Under different initial states, variations of drive parameters and suspension load disturbance
conditions the performance of proposed SMO for BSRM was simulated to verify the robustness. At the instant
of change of load there is a temporary increment of errors of position and rotor displacements of proposed SMO
for BSRM. The whole system reached its expected precision tracking. The fast convergence rate and more
robustness and disturbance rejection capability properties are carefully studied. The observer can provide
stable and accurate position estimation and displacement estimation and speed estimation even there is an
unexpected variations in reference and suspension loading conditions.
ER  -