The article presents methods for increasing the efficiency of electric traction drives. Rising electricity prices and environmental protection requirements make the processing of electrical energy by a vehicle a priority issue. Practical methods for increasing efficiency are presented. They concern the use of: energy-efficient electric motors, motor control to achieve optimal efficiency under given conditions, regenerative braking, vehicle driving strategies on a given section, and optimal drivetrain systems. Types of modifications in the motor to reduce its losses are provided.Modern traction drives use frequency converters to regulate the rotational speed of AC motors. Currently, the most widespread is the drive with an asynchronous squirrel-cage motor[1,2,3,4,5,6,7,8,9].
The efficiency of energy processing in a vehicle depends on many factors, the main ones being:
– motor efficiency, – drive operation control, – motor selection for the drive, – method of power transmission, – possibility of regenerative braking. (…)
The article contains 23458 characters.
Source: Logistyka Magazine
Energy efficiency of traction drives – PDF file for download