Low cost electronic ultracapacitor interface technique to provide load leveling of a battery for pulsed load or motor traction drive applications
Patent
·
OSTI ID:871401
- Schenectady, NY
A battery load leveling arrangement for an electrically powered system in which battery loading is subject to intermittent high current loading utilizes a passive energy storage device and a diode connected in series with the storage device to conduct current from the storage device to the load when current demand forces a drop in battery voltage. A current limiting circuit is connected in parallel with the diode for recharging the passive energy storage device. The current limiting circuit functions to limit the average magnitude of recharge current supplied to the storage device. Various forms of current limiting circuits are disclosed, including a PTC resistor coupled in parallel with a fixed resistor. The current limit circuit may also include an SCR for switching regenerative braking current to the device when the system is connected to power an electric motor.
- Research Organization:
- EG & G IDAHO INC
- DOE Contract Number:
- AC07-76ID01570
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Number(s):
- US 5723956
- OSTI ID:
- 871401
- Country of Publication:
- United States
- Language:
- English
Design methodologies for soft switched inverters
|
journal | January 1993 |
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/318/307/323/
applications
arrangement
average
battery
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braking
charge current
circuit
circuit functions
circuits
conduct
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cost
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coupled
current
current limit
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current load
current supplied
demand
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diode
diode connected
disclosed
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electric
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ptc
pulsed
recharge
recharging
regenerative
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utilizes
various
various forms
voltage
applications
arrangement
average
battery
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circuit functions
circuits
conduct
connected
cost
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current supplied
demand
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drop
electric
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electrically
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electronic
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fixed
forces
forms
functions
including
interface
intermittent
leveling
limit
limiting
load
load leveling
loading
magnitude
motor
parallel
passive
power
powered
provide
ptc
pulsed
recharge
recharging
regenerative
regenerative braking
resistor
series
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traction
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