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Title: Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems

Abstract

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.

Inventors:
 [1];  [2]
  1. (Schenectady, NY)
  2. (Malvern, PA)
Publication Date:
Research Org.:
EG & G IDAHO INC
OSTI Identifier:
871338
Patent Number(s):
US 5710699
Assignee:
General Electric Company (Schenectady, NY) INEEL
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
power; 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; /363/318/323/

Citation Formats

King, Robert Dean, and DeDoncker, Rik Wivina Anna Adelson. Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems. United States: N. p., 1998. Web.
King, Robert Dean, & DeDoncker, Rik Wivina Anna Adelson. Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems. United States.
King, Robert Dean, and DeDoncker, Rik Wivina Anna Adelson. Thu . "Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems". United States. doi:. https://www.osti.gov/servlets/purl/871338.
@article{osti_871338,
title = {Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems},
author = {King, Robert Dean and DeDoncker, Rik Wivina Anna Adelson},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}

Patent:

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