Efficiency analysis of electric vehicles, with emphasis on efficiency optimized excitation
- 30 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 455-462
- https://doi.org/10.1109/ias.1993.298963
Abstract
An attempt is made to quantify the efficiency improvements in electric vehicles which can be obtained with optimized flux control. A constant current ratio control strategy and a true optimum flux control strategy are evaluated and compared in stationary speed-torque working points and for standard driving cycles. This is done by the use of a computer-assisting analysis program for electric vehicles. Two different systems are analyzed; a smaller vehicle with a DC motor drive, and a larger vehicle with an induction motor drive. The constant current ratio control strategy is shown to be a simple alternative to true optimum control for DC motors. Driving cycle calculations show efficiency improvements of up to 5-6% with optimized flux control.Keywords
This publication has 8 references indexed in Scilit:
- Electric vehiclesIEEE Spectrum, 1992
- Simple efficiency maximizer for an adjustable frequency induction motor driveIEEE Transactions on Industry Applications, 1991
- An efficient high performance voltage decoupled induction motor drive with excitation controlIEEE Transactions on Energy Conversion, 1989
- On-Line Efficiency Optimization of a Variable Frequency Induction Motor DriveIEEE Transactions on Industry Applications, 1985
- A Study of System Losses in a Transistorized Inverter-Induction Motor Drive SystemIEEE Transactions on Industry Applications, 1985
- Optimal Efficiency Drive of a Current Source Inverter Fed Induction Motor by Flux ControlIEEE Transactions on Industry Applications, 1984
- Minimizing Induction Motor Losses by Excitation Control in Variable Frequency DrivesIEEE Transactions on Industry Applications, 1984
- Control Means for Minimization of Losses in AC and DC Motor DrivesIEEE Transactions on Industry Applications, 1983