Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems
- Schenectady, NY
A method and apparatus for load leveling of a battery in an electrical power system includes a power regulator coupled to transfer power between a load and a DC link, a battery coupled to the DC link through a first DC-to-DC converter and an auxiliary passive energy storage device coupled to the DC link through a second DC-to-DC converter. The battery is coupled to the passive energy storage device through a unidirectional conducting device whereby the battery can supply power to the DC link through each of the first and second converters when battery voltage exceeds voltage on the passive storage device. When the load comprises a motor capable of operating in a regenerative mode, the converters are adapted for transferring power to the battery and passive storage device. In this form, resistance can be coupled in circuit with the second DC-to-DC converter to dissipate excess regenerative power.
- Research Organization:
- EG & G IDAHO INC
- DOE Contract Number:
- AC07-76ID01570
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Number(s):
- US 5710699
- OSTI ID:
- 871338
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
electronic
interface
circuits
batteries
ultracapacitors
electric
vehicles
battery
storage
systems
method
apparatus
load
leveling
electrical
regulator
coupled
transfer
dc
link
dc-to-dc
converter
auxiliary
passive
energy
device
unidirectional
conducting
whereby
supply
converters
voltage
exceeds
comprises
motor
capable
operating
regenerative
mode
adapted
transferring
form
resistance
circuit
dissipate
excess
load leveling
battery voltage
device coupled
electric vehicle
electrical power
storage device
energy storage
electric vehicles
storage systems
motor capable
device whereby
power regulator
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