Title :
Determining constant power speed ratio of the induction motor from equivalent circuit parameters
Author :
Patil, Niranjan A. ; Lawler, J.S. ; McKeever, J.W.
Author_Institution :
Univ. of Tennessee, Knoxville
Abstract :
The equivalent circuit of the induction machine is used to derive analytic expressions for the constant power speed ratio (CPSR) of an induction motor traction drive. The formulas indicate that while many model parameters influence the CPSR to some extent, it is the maximum permissible magnetizing current magnitude, dc supply voltage, base speed and torque requirement, and leakage inductances that have the greatest effect. In situations where the motor design is fixed the only parameters that can be varied by the drive designer are the DC supply voltage and power rating. For such cases explicit formulas are developed to find the supply voltage and power rating that meets a given CPSR requirement.
Keywords :
equivalent circuits; induction motor drives; traction motor drives; DC supply voltage; constant power speed ratio; equivalent circuit parameters; induction motor traction drive; magnetizing current magnitude; Current supplies; DC motors; Equivalent circuits; Induction machines; Induction motors; Magnetic analysis; Power supplies; Torque; Traction motors; Voltage;
Conference_Titel :
Southeastcon, 2008. IEEE
Conference_Location :
Huntsville, AL
Print_ISBN :
978-1-4244-1883-1
Electronic_ISBN :
978-1-4244-1884-8
DOI :
10.1109/SECON.2008.4494339