Integral inverter/battery charger for use in electric vehicles. Final report

Technical Report · Thu Sep 01 04:00:00 EDT 1983

OSTI ID:6924627

Thimmesch, D

The design and test results of a thyristor based inverter/charger are discussed. A battery charger is included integral to the inverter by using a subset of the inverter power circuit components. The resulting charger provides electrical isolation between the vehicle propulsion battery and ac line and is capable of charging a 25 kWh propulsion battery in 8 hours from a 220 volt ac line. The integral charger employs the inverter commutation components as a resonant ac/dc isolated converter rated at 3.6 kW. Charger efficiency and power factor at an output power of 3.6 kW are 86% and 95%, respectively. The inverter, when operated with a matching polyphase ac induction motor and nominal 132 volt propulsion battery, can provide a peak shaft power of 34 kW (45 hp) during motoring operation and 45 kW (60 hp) during regeneration. Thyristors are employed for the inverter power switching devices and are arranged in an input-commutated topology. This configuration requires only two thyristors to commutate the six main inverter thyristors. Inverter efficiency during motoring operation at motor shaft speeds above 450 rad/sec (4300 rpm) is 92 to 94% for output power levels above 11 KW (15 hp). The combined ac inverter/charger package weighs 47 kg (103 lbs).

• Research Organization: Gould, Inc., Rolling Meadows, IL (USA). Gould Labs.-Electrical and Electronic Research
• DOE Contract Number: AI01-77CS51044
• OSTI ID: 6924627
• Report Number(s): DOE/NASA/0249-83/1; NASA-CR-168177; ON: DE84010642
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330300* -- Advanced Propulsion Systems-- Electric-Powered Systems
BATTERY CHARGERS
CONTROL SYSTEMS
ELECTRIC-POWERED VEHICLES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
INVERTERS
OPERATION
POWER CONDITIONING CIRCUITS
SEMICONDUCTOR DEVICES
THYRISTORS
VEHICLES