Title: Voltage control utilizing multiple PWM patterns

Abstract

A power-delivery system may comprise a load device and a direct-current converter configured to deliver current to the load device when the direct-current converter is in an on state. The power-deliver system may comprise a voltage-measurement system configured to measure, at a beginning of each measurement cycle in a cyclic measurement pattern, a voltage at the load device. The power-deliver system may comprise a power controller configure to receive, at the beginning of each measurement cycle, the measurement of the voltage, and to perform, at the beginning of a control cycle in a cyclic control pattern, a voltage-control decision in response to a change in the measurement of the voltage being below a voltage-change threshold. The voltage-control decision may comprise whether to switch the state of the first direct-current converter. The cyclic control pattern may operate at a first frequency, and the measurement pattern may operate at a second frequency.

Inventors:

Ferencz, Andrew; Takken, Todd E.; Coteus, Paul W.; Zhang, Xin

Issue Date:

2018-10-09

Research Org.:

International Business Machines Corp., Armonk, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1485058

Patent Number(s):

10097090

Application Number:

15/826,793

Assignee:

International Business Machines Corporation (Armonk, 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

H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS

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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

H02M2001/0003 - {Details of control, feedback and regulation circuits}
H02M3/158 - including plural semiconductor devices as final control devices for a single load
H02M1/36 - Means for starting or stopping converters
H02M1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS

H02P9/30 - using semiconductor devices

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

H02M2003/1566 - {with means for compensating against rapid load changes, e.g. with auxiliary current source, with dual mode control, with inductance variation}

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DOE Contract Number:  

B604142

Resource Type:

Patent

Resource Relation:

Patent File Date: 2017 Nov 30

Country of Publication:

United States

Language:

English

Subject:

24 POWER TRANSMISSION AND DISTRIBUTION