Electrical power distribution network monitoring and control

Patent metadata

Field	Value
Publication number	US-9472946-B2
Application number	US-201313962441-A
Country	US
Kind code	B2
Filing date	Aug 8, 2013
Priority date	Jul 19, 2012
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

An electrical power distribution network may include a plurality of transformers and a local manager associated with a transformer. Each local manager may be configured to monitor and control a magnetic flux level in a magnetic flux core of the associated transformer. The electrical power distribution network may also include a central manager configured to receive magnetic flux level data from each local manager and control operation of each local manager in response to the magnetic flux level data.

First claim

What is claimed is:

1. An electrical power distribution network, comprising:
a plurality of transformers, each transformer comprising a magnetic flux core and an opening through the magnetic core;
a local manager associated with each transformer, each local manager configured to monitor and control a magnetic flux level in the magnetic flux core of the associated transformer;
a central manager configured to receive magnetic flux level data from each local manager and control operation of each local manager in response to the magnetic flux level data;
a core flux sensor arrangement associated with each transformer to detect a magnetic flux flow in the magnetic flux core of the associated transformer to control the magnetic flux flow in the magnetic flux core, wherein the core flux sensor arrangement comprises:
a first pair of sensor holes formed through magnetic material of at least a portion of the magnetic flux core in a path of the magnetic flux flow, the first pair of sensor holes being positioned relative to the opening through the magnetic flux core for sensing the magnetic flux flow while minimizing disruption of the magnetic flux flow in the magnetic flux core; and
a first sensor conductor winding through the first pair of sensor holes, the magnetic flux flow generating a first electrical signal in the first sensor conductor winding, the first electrical signal in the first sensor conductor winding corresponding to the magnetic flux flow at a location of the first sensor conductor winding.

2. The electrical power distribution network of claim 1 , wherein the central manager is configured to analyze the magnetic flux level data from each local manager and transmit an individual instruction to at least some local managers for controlling the magnetic flux level in the associated transformer in response to the analysis of the magnetic flux level data.

3. The electrical power distribution network of claim 1 , wherein the central manager is configured to control a level of electrical power transmitted on a power distribution circuit to an electrical power end user.

4. The electrical power distribution network of claim 1 , wherein the central manager is configured to integrate the magnetic flux level data from each of the local managers and evaluate performance of the electrical power distribution network.

5. The electrical power distribution network of claim 1 , wherein the central manager is configured to detect a fault from analysis of the magnetic flux level data and to isolate the fault by transmitting an instruction to the local manager associated with the fault, the local manger configuring the associated transformer to isolate the fault in response to the instruction.

6. The electrical power distribution network of claim 1 , wherein the central manager is configured to set at least one local manager parameter, the local manager configuring the associated transformer in response to the at least one local manager parameter.

7. The electrical power distribution network of claim 1 , further comprising a network model associated with the central manager, wherein the central manager is configured to modify the network model to match a configuration of the electrical power distribution network in response to a change in the configuration of the electrical power distribution network.

8. The electrical power distribution network of claim 1 , wherein the local manager is configured to receive the magnetic flux level data and to adjust an electrical current flowing through a conductor winding of the associated transformer to control the magnetic flux flow in the magnetic flux core.

9. The electrical power distribution network of claim 1 , wherein each transformer further comprises:
a conductor winding received in the opening and extending through the magnetic flux core, wherein an electrical current flowing through the conductor winding generates a magnetic field about the conductor winding and the magnetic flux flow about the opening in the magnetic flux core.

10. The electrical power distribution network of claim 1 , wherein the core flux sensor arrangement comprises:
a second pair of sensor holes formed through at least the portion of the magnetic flux core, the second pair of sensor holes for use in sensing the magnetic flux flow at a location of the second pair of sensor holes; and
a second sensor conductor winding through the second pair of sensor holes, the magnetic flux flow generating a second electrical signal in the second sensor conductor winding, the second electrical signal in the second sensor conductor winding corresponding to the magnetic flux flow at the location of the second sensor conductor winding.

11. The electrical power distribution network of claim 1 , wherein a conductor winding is received in the opening and extends through the magnetic core, the electric current flowing through the conductor winding generates a magnetic field about the conductor winding and generates the magnetic flux flow about the opening in the magnetic flux core and wherein the first pair of sensor holes are positioned relative to the opening through the magnetic flux core for sensing the magnetic flux flow at the location of the first sensor conductor winding.

12. The electrical power distribution network of claim 11 , wherein the core flux sensor arrangement further comprises:
a second pair of sensor holes formed through at least the portion of the magnetic flux core at a greater distance from the opening than the pair of sensor holes, the second pair of sensor holes for use in sensing the magnetic flux flow at a location of the second pair of sensor holes; and
a second sensor conductor winding through the second pair of sensor holes, the magnetic flux flow generating a second electrical signal in the second sensor conductor winding, the second electrical signal in the second sensor conductor winding corresponding to the magnetic flux flow at the location of the second sensor conductor winding.

13. The electrical power distribution network of claim 1 , wherein the local manager is configured to transmit magnetic flux level data to the central manager of the power distribution network and to receive instructions from the central manager to control the magnetic flux level in the magnetic flux core of the associated transformer.

14. A transformer for use in a power distribution network, comprising:
a magnetic flux core;
an opening through the magnetic flux core;
a conductor winding received in the opening and extending through the magnetic flux core, wherein an electrical current flowing through the conductor winding generates a magnetic field about the conductor winding and a magnetic flux flow about the opening in the magnetic flux core;
a core flux sensor arrangement to detect a magnetic flux level in the magnetic flux core, wherein the core flux sensor arrangement comprises:
a first pair of sensor holes formed through magnetic material of at least a portion of the magnetic flux core in a path of the magnetic flux flow, the first pair of sensor holes being positioned relative to the opening through the magnetic flux core for use in sensing the magnetic flux flow while minimizing disruption of the magnetic flux flow in the magnetic flux core; and
a first sensor conductor winding through the first pair of sensor holes, the magnetic flux flow generating a first electrical signal in the first sensor conductor winding, the first electrical signal in the first sensor conductor winding corresponding to the magnetic flux flow at a location of the first sensor conductor winding;

a local manager associated with the transformer and configu

Assignees

• Boeing Co

Inventors

• Peck Jr James Leo

Classifications

• H02J13/333

  the equipment forming part of substations · CPC title

• H02J13/36

  specially adapted for protection systems · CPC title

• H01F41/02

  for manufacturing cores, coils, or magnets (H01F41/14 takes precedence; for dynamo-electric machines H02K15/00) · CPC title

• H01F17/06 Primary

  with core substantially closed in itself, e.g. toroid · CPC title

• H02H7/263 Primary

  involving transmissions of measured values (comparison of currents or voltages using pilot wires H02H3/30) · CPC title