Methodology of testing and optimal setting of an asynchronous traction drive for electric vehicles

What is it about?

This paper presents a methodology of tests of traction asynchronous drives applied in electric vehicles. It is similar to Urban Driving Cycle ECE-15 (UDC). The objective of the research is to verify the developed methodology through tests performed on a laboratory simulator, which consists of energy-saving asynchronous motor controlled by a frequency inverter (converter). Vector Control on the drive is used for smooth speed regulation over a wide range at high values of efficiency and power factor. Contemporary measuring and control devices and special software products are used for capturing the dynamic characteristics when starting, stopping and changing the speed set point of the drive. Some of tests are presented and an experimental verification of the developed methodology is made. An optimal setting of the drive parameters can be made to minimize the electric energy consumption

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Why is it important?

The developed methodology provides the opportunity of an optimal setting of the drive and combines the advantages of the UDC and SAE J227a driving schedules. It is based on the possibility of examining the influence of the inverter parameters on the energetic drive performance. The optimal ratio of the dynamic features of the car to the energy consumption can be accomplished.

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