TRANSFORMER STRUCTURE FOR SMART LOAD BALANCING

• US 20120277926A1
• Filed: 04/29/2011
• Published: 11/01/2012
• Est. Priority Date: 04/29/2011
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Nielsen, Matthew Christian, Shah, Manoj Ramprasad, Reid, Andrew Andre
• Application Number:
  US13/097,250
• Publication Number:
  US 20120277926A1
• Time in Patent Office: Days
• US Class Current: 700/292
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: H01F 27/402 Association of measuring or protective means
• CPC Class Codes: H02J 13/00009 using pulsed signals
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 3/144 Demand-response operation of the power transmission or distribution network
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y04S 10/126 the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 40/121 using the power network as support for the transmission
• CPC Class Codes: Y04S 40/126 using wireless data transmission

Abstract

A load balancing system includes a transformer having a plurality of integrated sensors. A control system that may be embedded within the transformer is in electrical communication with the plurality of sensors. The control system is configured to estimate or determine the state of health of the transformer. The state of health of the transformer is based upon signals generated via the plurality of sensors. A load request that may be received that is compared to the state of health of the transformer to determine if the transformer can support the load request. The control system determines whether or not the transformer can provide electrical power based upon the estimated state of health of the transformer and in response to the load request.

Claims

1. A load balancing system comprising:

a transformer comprising a plurality of sensors integrated therewith; and

a control system in electrical communication with the plurality of sensors and configured to estimate or determine the state of health of the transformer in response to signals generated via the plurality of sensors and further configured to compare a load request received from one or more loads to the state of transformer health to determine if the transformer can support the load request, and further to acknowledge or agree to provide electrical power to meet the load request or request agreement from the one or more loads to modify the load request.

2. The load balancing system according to claim 1, further comprising a state estimator configured to determine the state of health based upon the signals generated via the plurality of sensors.

3. The load balancing system according to claim 1, wherein the load request is communicated to the control system via at least one of a power line carrier (PLC) and a wireless carrier.

4. The load balancing system according to claim 1, wherein the control system is integrated with the transformer.

5. The load balancing system according to claim 1, wherein the control system is independent from the transformer.

6. The load balancing system according to claim 1, wherein the transformer is a residential neighborhood transformer servicing a plurality of homes.

7. The load balancing system according to claim 1, wherein the load request is generated by one or more plug-in electric vehicle charging systems.

8. The load balancing system according to claim 1, wherein the load request is based upon one or more residential loads.

9. The load balancing system according to claim 1, wherein the control system comprises:

one or more memory units configured to store a state estimator, state of transformer health data, and sensor signal data;

one or more analog/digital converters configured to generate the sensor signal data in response to the sensor signals;

a plurality of input/output ports in electrical communication with the plurality of sensors; and

a processor configured to process the sensor signal data to generate the state of transformer health data.

10. The load balancing system according to claim 1, further comprising a distribution management system configured to balance a grid load based upon the state of transformer health.

11. The load balancing system according to claim 1, wherein the modified load request is selected from a disapproved load condition, and a modified load condition.

12. A load balancing system comprising:

a transformer comprising a plurality of sensors integrated therewith;

a communications and control system embedded within the transformer, the communications and control system in electrical communication with the plurality of sensors and configured to estimate or determine the state of health of the transformer based upon signals generated via the plurality of sensors and to compare a load request from one or more loads to the state of transformer health to determine if the transformer can support the load request, and further to acknowledge or agree to provide electrical power to meet the load request or request agreement from the one or more loads to modify the load request; and

a distribution management system configured to balance a grid load based upon the state of transformer health.

13. The load balancing system according to claim 12, further comprising a state estimator configured to determine the state of health based upon the signals generated via the plurality of sensors.

14. The load balancing system according to claim 12, wherein the distribution management system is further configured to balance the grid load based upon a load request approval status.

15. The load balancing system according to claim 14, wherein the load request approval status is selected from an approved load condition, a disapproved load condition, and a modified load condition.

16. The load balancing system according to claim 12, wherein the load request is generated by one or more plug-in electric vehicle charging systems.

17. The load balancing system according to claim 12, wherein the load request is based upon one or more residential loads.

18. The load balancing system according to claim 12, wherein the control system comprises:

one or more memory units configured to store a state estimator, state of transformer health data, and sensor signal data;

one or more analog/digital converters configured to generate the sensor signal data in response to the sensor signals;

a plurality of input/output ports in electrical communication with the plurality of sensors; and

a processor configured to process the sensor signal data to generate the state of transformer health data.

19. A method of transformer load balancing, the method comprising:

providing a transformer comprising a plurality of sensors integrated therewith;

providing a control system in electrical communication with the plurality of sensors;

estimating or determining the state of health of the transformer via the control system in response to signals received from the plurality of sensors;

comparing a load request received from one or more loads to the state of transformer health to determine if the transformer can support the load request; and

acknowledging or agreeing to provide electrical power to meet the load request or requesting agreement from the one or more loads to modify the load request based on the state of transformer health.

20. The method of transformer load balancing according to claim 19, further comprising generating the load request via one or more plug-in electric vehicle charging systems.