Dual function solid state converter

Patent metadata

Field	Value
Publication number	US-10014790-B2
Application number	US-201213450562-A
Country	US
Kind code	B2
Filing date	Apr 19, 2012
Priority date	Apr 19, 2012
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

A dual function solid state power converter operable from a three phase AC input current simultaneously provides; an AC or DC output current on an aircraft power cable to provide ground power to a parked aircraft, and a low voltage DC current on a battery charging power cable to charge batteries in nearby service vehicles. The power converter includes an AC to DC converter which converts the current on an internal DC bus, a DC to AC converter which converts the DC bus current to an AC current at a higher voltage and frequency, or a DC to DC converter which converts the DC bus current to a lower voltage DC, for supplying ground power to a parked aircraft, and a DC to DC converter for converting the DC bus current to a lower voltage battery charging current on the battery charging cable.

First claim

I claim:

1. A dual purpose power converter, comprising:
an airport terminal applied alternating current supply input;
a rectifier circuit for converting the applied alternating current supply to a direct current;
an inverter circuit for converting said direct current from said rectifier circuit to primary AC output current, said primary AC output current coupled to a parked aircraft connector;
a direct current conversion circuit for converting said direct current from said rectifier circuit to the secondary DC output current, said secondary DC output current coupled to a ground support vehicle connector; and
a control circuit for controlling operation of said rectifier circuit, said inverter circuit and said conversion circuit in response to control signals whereby said power converter simultaneously provides power to a parked aircraft coupled to said aircraft connector and to a ground support vehicle coupled to said vehicle connector.

2. A dual purpose power converter as defined in claim 1 wherein said rectifier circuit comprises a thyristor bridge circuit.

3. A dual purpose power converter as defined in claim 2 wherein said thyristor bridge circuit includes a direct current filter.

4. A dual purpose power converter as defined in claim 1 wherein said inverter circuit comprises a three phase DC to AC inverter circuit.

5. A dual purpose power converter as defined in claim 4 wherein said DC to AC inverter circuit includes an output filter.

6. A dual purpose power converter as defined in claim 5 wherein said DC to AC inverter circuit further includes an output transformer.

7. A dual purpose power converter as defined in claim 1 wherein said DC to DC converter includes a regulation circuit responsive to output load voltage and load temperature.

Assignees

• Leadingham David Wayne
• Illinois Tool Works

Inventors

• Leadingham David Wayne

Classifications

• H02M7/217

  using semiconductor devices only · CPC title

• B64F1/305

  Bridges extending between terminal building and aircraft, e.g. telescopic, vertically adjustable · CPC title

• H02M5/458 Primary

  using semiconductor devices only · CPC title

• H02M2001/008

  Electricity · mapped topic

• H02M1/008

  Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators · CPC title