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Title: Improved transistorized ac motor controller for battery powered urban electric passenger vehicles

Abstract

The objectives of this program for an improved ac motor controller for battery powered urban electric passenger vehicles were: the design, fabrication, test, evaluation and cost analysis of an engineering model controller for an ac induction motor drive system, the investigation of a power level expansion to a family of horsepower and battery system voltages, and the investigation of the applicability of the ac controller for use as an on-board battery charger and for providing the function of motor reversal. Additional vehicle specifications, e.g., acceleration and pulling out of potholes, were added to the NASA vehicle specifications. Then, a vehicle performance analysis was done to establish the vehicle tractive effort-speed requirements. These requirements were then converted into a set of ac motor and ac controller requirements. The General Electric ac induction motor used in the drive is optimized to operate as a vehicle traction motor with a pulse width modulated (PWM) inverter as a power source. The motor is nominally rated 20 hp and 41 hp peak. The power inverter design is a three-phase transistorized bridge configuration with feedback diodes. The transistors are a special design General Electric high-power Darlington transistor rated 450 volts and 200 amps. The battery systemmore » voltage chosen was 108 volts. The control strategy is a constant torque profile by PWM operation to base speed and a constant horsepower profile by square-wave operation to maximum speed. A gear shifting transmission is not required. An advanced current-controlled PWM technique is used to control the motor voltage. The primary feedback control is a motor angle control, with voltage and torque outer loop controls.« less

Authors:
Publication Date:
Research Org.:
General Electric Co., Schenectady, NY (USA). Corporate Research and Development Center
OSTI Identifier:
6165008
Report Number(s):
DOE/NASA/0059-1; NASA-CR-167978; SRD-81-088
ON: DE83011771
DOE Contract Number:  
AI01-77CS51044
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; ELECTRIC-POWERED VEHICLES; CONTROL EQUIPMENT; DESIGN; ELECTRIC BATTERIES; ELECTRIC MOTORS; FEEDBACK; INVERTERS; SPECIFICATIONS; ELECTRICAL EQUIPMENT; ELECTROCHEMICAL CELLS; EQUIPMENT; MOTORS; VEHICLES; 330300* - Advanced Propulsion Systems- Electric-Powered Systems

Citation Formats

Peak, S C. Improved transistorized ac motor controller for battery powered urban electric passenger vehicles. United States: N. p., 1982. Web.
Peak, S C. Improved transistorized ac motor controller for battery powered urban electric passenger vehicles. United States.
Peak, S C. 1982. "Improved transistorized ac motor controller for battery powered urban electric passenger vehicles". United States.
@article{osti_6165008,
title = {Improved transistorized ac motor controller for battery powered urban electric passenger vehicles},
author = {Peak, S C},
abstractNote = {The objectives of this program for an improved ac motor controller for battery powered urban electric passenger vehicles were: the design, fabrication, test, evaluation and cost analysis of an engineering model controller for an ac induction motor drive system, the investigation of a power level expansion to a family of horsepower and battery system voltages, and the investigation of the applicability of the ac controller for use as an on-board battery charger and for providing the function of motor reversal. Additional vehicle specifications, e.g., acceleration and pulling out of potholes, were added to the NASA vehicle specifications. Then, a vehicle performance analysis was done to establish the vehicle tractive effort-speed requirements. These requirements were then converted into a set of ac motor and ac controller requirements. The General Electric ac induction motor used in the drive is optimized to operate as a vehicle traction motor with a pulse width modulated (PWM) inverter as a power source. The motor is nominally rated 20 hp and 41 hp peak. The power inverter design is a three-phase transistorized bridge configuration with feedback diodes. The transistors are a special design General Electric high-power Darlington transistor rated 450 volts and 200 amps. The battery system voltage chosen was 108 volts. The control strategy is a constant torque profile by PWM operation to base speed and a constant horsepower profile by square-wave operation to maximum speed. A gear shifting transmission is not required. An advanced current-controlled PWM technique is used to control the motor voltage. The primary feedback control is a motor angle control, with voltage and torque outer loop controls.},
doi = {},
url = {https://www.osti.gov/biblio/6165008}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {9}
}

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