OVERVIEW OF PARAMETER ESTIMATION FOR THE PERMANENT MAGNET SYNGCHRONOUS MACHINE, PROPOSAL OF AN OBSERVER-BASED TECHNIQUE WITH SECOND ORDER FORM

Abstract

The values of model parameters of electric machine are essential inputs in
the control design, operation and condition monitoring of the system. The paper
introduces a pilot overview of parameter esimation methods of permanent
magnet synchronous machine. Next, a nonlinear observer-based technique is
proposed to estimate each parameter of the permanent magnet synchronous
machine. The observer is simple since it is desgined for second order systems
with the output of the quadrature axis stator current. Computer simulation
results show that good estimation can be achieved that confirms the
effectiveness of the proposed method. The parameters are online estimated and
can be useful in the condition monitoring of the machine.