Straight and chopped DC performance data for a Prestolit MTC-4001 motor and a General Electric EV-1 controller
This report is intended to supply the electric vehicle manufacturer with performance data on the Prestolite MTC-4001 series wound DC motor and General Electric EV-1 Chopper Controller. Data is provided for both straight and chopped DC input to the motor, at 2 motor temperature levels. Testing was done at 6 voltage increments to the motor, and 2 voltage increments to the controller. Data results are presented in both tabular and graphical forms. Tabular information includes motor voltage and current input data, motor speed and torque output data, power data and temperature data. Graphical information includes torque-speed, motor power output-speed, torque-current, and efficiency-speed plots under the various operating conditions. The data resulting from this testing shows the speed-torque plots to have the most variance with operating temperature. The maximum motor efficiency is between 76 and 82%, regardless of temperature or mode of operation. When the chopper is utilized, maximum motor efficiency occurs when the chopper duty cycle approaches 100%. At low duty cycles the motor efficiency may be considerably less than the efficiency for straight DC. Chopper efficiency may be assumed to be 95% under all operating conditions. For equal speeds at a given voltage level, the motor operated in the chopped mode develops slightly more torque than it does in the straight DC mode. System block diagrams are included, along with test setup and procedure information.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center; Eaton Corp., Southfield, MI (USA). Engineering and Research Center
- DOE Contract Number:
- AI01-77CS51044
- OSTI ID:
- 6347128
- Report Number(s):
- DOE/NASA/0123-2; NASA-CR-165382; ON: DE81028183
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330300* -- Advanced Propulsion Systems-- Electric-Powered Systems
CONTROL EQUIPMENT
DATA
EFFICIENCY
ELECTRIC MOTORS
ELECTRIC-POWERED VEHICLES
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
MOTORS
NUMERICAL DATA
PERFORMANCE
PERFORMANCE TESTING
TEMPERATURE DEPENDENCE
TESTING
TORQUE
VEHICLES