Dynamic power supply system

Patent metadata

Field	Value
Publication number	US-11605957-B2
Application number	US-202016929904-A
Country	US
Kind code	B2
Filing date	Jul 15, 2020
Priority date	Jul 15, 2020
Publication date	Mar 14, 2023
Grant date	Mar 14, 2023

Abstract

A power supply system includes a set of power supply units, each power supply unit arranged electrically in series and defining a common power supply, each power supply unit having a power module and a selective bypass for selectively bypassing the respective power module. The power supply system can meet a power demand.

First claim

What is claimed is:

1. A dynamic power supply system, comprising:
a set of power supply units arranged electrically in series and defining a common direct current (DC) power supply system output, each of the set of power supply units including:
a power module having a set of energy storage units;
a DC to DC power converter connected with the power module and an energy storage unit power output; and
a selective bypass arranged to controllably bypass the power module across the energy storage unit power output; and

a controller module communicatively connected with each respective DC to DC power converter and the selective bypass, and configured to operate at least a first subset of the energy storage units to operably supply energy by way of operating the respective subset of the DC to DC power converters, to operate at least a second subset of the energy storage units to operably bypass the respective subset of the selective bypasses, and to operate the first subset of the energy storage units by way of interleaving a pulse width modulation, whereby the operating the first subset of the energy storage units operably reduces an output DC voltage ripple at the common DC power supply system output.

2. The dynamic power supply system of claim 1 , further comprising a power demand input configured to receive a power demand for the dynamic power supply system.

3. The dynamic power supply system of claim 2 wherein the controller module is further configured to operate the first subset of the energy storage units and the second subset of energy storage units such that power supplied at the common DC power supply system output meets the power demand.

4. The dynamic power supply system of claim 3 wherein each of the set of energy storage units includes a dischargeable energy source.

5. The dynamic power supply system of claim 4 wherein the dischargeable energy source includes at least one of a battery, a bank of batteries, a rechargeable battery, or a bank of rechargeable batteries.

6. The dynamic power supply system of claim 2 wherein the power demand is a transient power demand.

7. The dynamic power supply system of claim 1 wherein each of the set of power supply units is configured to supply 50 Volts DC at the respective energy storage unit power output.

8. The dynamic power supply system of claim 7 , wherein each of the DC to DC power converters are rated to supply 50 Volts DC at the respective energy storage unit power output.

9. The dynamic power supply system of claim 8 , wherein each of the DC to DC power converters are solid-state DC to DC power converters.

10. The dynamic power supply system of claim 1 , wherein each of the DC to DC power converters is a low-voltage DC to DC power converter designed to reduce a reserved voltage less than 50% of a designed power characteristics.

11. A dynamic power supply system for an aircraft power distribution system, comprising:
at least one generator;
a direct current (DC) power bus selectively connecting the at least one generator with at least one electrical load;
a set of power supply units arranged electrically in series and defining a common DC power supply system output selectively connecting with the DC power bus, each of the set of power supply units including:
a power module having a set of energy storage units;
a solid-state DC to DC power converter connected with the power module and an energy storage unit power output, each of the DC to DC power converters rated to supply 50 Volts DC at the respective energy storage unit power output; and
a selective bypass arranged to controllably bypass the power module across the energy storage unit power output; and

a controller module communicatively connected with each respective DC to DC power converter and the selective bypass, and configured to determine a presence of a supplemental power demand, and in response to determining the presence of the supplemental power demand, operate at least a first subset of the power supply units to operably supply supplemental energy to the DC power bus by way of operating the respective subset of the DC to DC power converters, and to operate at least a second subset of the power supply units to operably bypass the respective subset of the selective bypasses such that power supplied at the common DC power supply system output meets the power demand.

12. The dynamic power supply system of claim 11 wherein each of the set of energy storage units includes a dischargeable energy source includes at least one of a battery, a bank of batteries, a rechargeable battery, or a bank of rechargeable batteries.

13. The dynamic power supply system of claim 11 wherein each of the set of energy storage units includes at least one rechargeable battery, and wherein the controller module is further configured to determine a presence of supplemental power at the DC power bus, and in response to determining the presence of the supplemental power at the DC power bus, operate at least a one of the set of energy storage units to operably recharge the at least one rechargeable battery from the DC power bus.

14. The dynamic power supply system of claim 11 wherein each of the set of power supply units is configured to supply 50 Volts DC at the respective energy storage unit power output.

15. The dynamic power supply system of claim 11 , wherein each of the DC to DC power converters is a low-voltage DC to DC power converter designed to reduce a reserved voltage less than 50% of a designed power characteristics.

16. The dynamic power supply system of claim 11 wherein the supplemental power demand is a transient power demand.

Assignees

• Gen Electric

Inventors

• Wang Ruxi
• Sadilek Tomas

Classifications

• H02J7/54

  Passive balancing, e.g. using resistors or parallel MOSFETs · CPC title

• H02J2105/32

  for aircrafts · CPC title

• H02J7/575 Primary

  Parallel/serial switching of connection of batteries to charge or load circuit · CPC title

• H02M1/14 Primary

  Arrangements for reducing ripples from DC input or output · CPC title

• H02J1/10

  Parallel operation of DC sources · CPC title