| dc.description.abstract | Permanent magnet synchronous machines (PMSM) have shown increasing
popularity in recent years for industrial drive applications due to the recent developments
in magnetic materials, power converters, and digital signal processors.
In particular, Interior Permanent Magnet Synchronous Motor (IPMSM)
drives are widely used in high performance drive (HPD) applications. Fast and
accurate speed response and quick recovery of speed from any disturbances are
essential. The control of a high performance permanent magnet synchronous
motor drive for general industrial application has received wide spread interest
of researchers.
In this work, a novel speed and position control scheme for an IPMSM is
developed based on a nonlinear adaptive control scheme. The vector control
scheme is used to simplify control of the IPMSM. System model equations are
represented in the synchronously rotating reference frame and provide the basis
for the controller which is designed using the adaptive backstepping technique.
Using Lyapunov’s stability theory, it is also shown that the control variables
are asymptotically stable. The complete system model is developed and then
simulated using MATLAB/Simulink software. Performance of the proposed
controller is investigated extensively at different dynamic operating conditions
such as sudden load change, command speed change, command position change
and parameter variations. The results show the global stability of the proposed controller and hence found to be suitable for high performance industrial drive
applications. The real time implementation of the complete drive system is
currently underway. | |
