Single-phase electric drive for automotive applications

Despite of broad availability and numerous attractive features, single-phase induction motors (SPIMs) are still not in use in the vehicular applications because of their difficult starting, complexity of the low-speed operation, and some other control drawbacks. This work focuses on the design of the variable-speed capacitor-run SPIM drive. The motor behavior upon the broad speed range regulation was explored and some methods were proposed to improve the drive speed-torque and speed-current characteristics. To overcome the prominent shortcomings and to meet the vehicle requirements, some novelties were proposed in the SPIM drive control arrangements.