skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Bi-directional power control system for voltage converter

Abstract

A control system for a voltage converter includes: a power comparator for comparing a power signal on input terminals of the converter with a commanded power signal and producing a power comparison signal; a power regulator for transforming the power comparison signal to a commanded current signal; a current comparator for comparing the commanded current signal with a measured current signal on output terminals of the converter and producing a current comparison signal; a current regulator for transforming the current comparison signal to a pulse width modulator (PWM) duty cycle command signal; and a PWM for using the PWM duty cycle command signal to control electrical switches of the converter. The control system may further include: a command multiplier for converting a voltage signal across the output terminals of the converter to a gain signal having a value between zero (0) and unity (1), and a power multiplier for multiplying the commanded power signal by the gain signal to provide a limited commanded power signal, wherein power comparator compares the limited commanded power signal with the power signal on the input terminals.

Inventors:
 [1];  [2];  [3]
  1. Niskayuna, NY
  2. Schenectady, NY
  3. Slingerlands, NY
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
OSTI Identifier:
872286
Patent Number(s):
5903449
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
DOE Contract Number:  
FC07-96ID13406
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
bi-directional; power; control; voltage; converter; comparator; comparing; signal; input; terminals; commanded; producing; comparison; regulator; transforming; current; measured; output; pulse; width; modulator; pwm; duty; cycle; command; electrical; switches; multiplier; converting; value; zero; unity; multiplying; provide; limited; compares; input terminal; input terminals; power signal; command signal; output terminal; power control; voltage signal; pulse width; duty cycle; current signal; commanded power; electrical switch; voltage converter; power multiplier; output terminals; electrical switches; power regulator; control electrical; /363/

Citation Formats

Garrigan, Neil Richard, King, Robert Dean, and Schwartz, James Edward. Bi-directional power control system for voltage converter. United States: N. p., 1999. Web.
Garrigan, Neil Richard, King, Robert Dean, & Schwartz, James Edward. Bi-directional power control system for voltage converter. United States.
Garrigan, Neil Richard, King, Robert Dean, and Schwartz, James Edward. Fri . "Bi-directional power control system for voltage converter". United States. https://www.osti.gov/servlets/purl/872286.
@article{osti_872286,
title = {Bi-directional power control system for voltage converter},
author = {Garrigan, Neil Richard and King, Robert Dean and Schwartz, James Edward},
abstractNote = {A control system for a voltage converter includes: a power comparator for comparing a power signal on input terminals of the converter with a commanded power signal and producing a power comparison signal; a power regulator for transforming the power comparison signal to a commanded current signal; a current comparator for comparing the commanded current signal with a measured current signal on output terminals of the converter and producing a current comparison signal; a current regulator for transforming the current comparison signal to a pulse width modulator (PWM) duty cycle command signal; and a PWM for using the PWM duty cycle command signal to control electrical switches of the converter. The control system may further include: a command multiplier for converting a voltage signal across the output terminals of the converter to a gain signal having a value between zero (0) and unity (1), and a power multiplier for multiplying the commanded power signal by the gain signal to provide a limited commanded power signal, wherein power comparator compares the limited commanded power signal with the power signal on the input terminals.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

Save / Share: