System and method for identifying an ultracapacitor from a plurality of ultracapacitors

Patent metadata

Field	Value
Publication number	US-2016178686-A1
Application number	US-201414575087-A
Country	US
Kind code	A1
Filing date	Dec 18, 2014
Priority date	Dec 18, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

A source ID generation system for an energy storage system of a virtual spinning reserve coupled to power generator set includes at least one ultracapacitor having a low voltage side and a high voltage side. Each of the high voltage side and the low voltage side of the ultracapacitor includes a positive terminal, a negative terminal, a resistor input terminal, and a resistor output terminal. The source ID generation system further includes a resistor that is connected between the resistor input terminal and the resistor output terminal of the ultracapacitor. A source ID of the ultracapacitor is generated based on a voltage between the resistor input terminal and the negative terminal at the low voltage side of the ultracapacitor.

First claim

What is claimed is:

1 . A source ID generation system for an energy storage system of a virtual spinning reserve coupled to a power generator set, the energy storage system having at least one ultracapacitor therein, the source ID generation system comprising:
a low voltage side of the ultracapacitor, wherein the low voltage side of the ultracapacitor comprises a positive terminal, a negative terminal, a resistor input terminal, and a resistor output terminal; and a resistor connected between the resistor input terminal and the resistor output terminal of the ultracapacitor, wherein a source ID of the ultracapacitor is generated based on a voltage between the resistor input terminal and the negative terminal at the low voltage side of the ultracapacitor.

2 . The source ID generation system of claim 1 further comprising a controller communicably coupled to the ultracapacitor and the resistor, wherein the controller is configured to receive signals indicative of the voltage between the resistor input terminal and the negative terminal at the low voltage side of the ultracapacitor.

3 . The source ID generation system of claim 2 , wherein the controller generates the source ID of each ultracapacitor from the received signals.

4 . The source ID generation system of claim 2 , wherein the controller forms part of a controller area network (CAN) that is adapted to communicate with the ultracapacitor and the resistor using CAN signals.

5 . An energy storage system for a virtual spinning reserve coupled to a power generator set, the energy storage system comprising:
at least one gateway; a plurality of ultracapacitors arranged serially in the at least one gateway; a source ID generation system comprising:
a low voltage side of the plurality of ultracapacitors, wherein the a positive terminal, a negative terminal, a resistor input terminal, and a resistor output terminal; and
a resistor connected between the resistor input terminal and the resistor output terminal of each ultracapacitor, wherein a voltage between the resistor input terminal and the negative terminal at the low voltage side of the ultracapacitor is indicative of the source ID of a corresponding ultracapacitor.

6 . The energy storage system of claim 5 , wherein a sequential voltage drop across each resistor is partly indicative of the source ID of the corresponding ultracapacitor.

7 . The energy storage system of claim 5 , wherein the system further comprises a controller communicably coupled to each of the plurality of ultracapacitors and resistors in the gateway, wherein the controller is configured to receive signals indicative of the voltage between the resistor input terminal and the negative terminal at the low voltage side of the ultracapacitor.

8 . The energy storage system of claim 7 , wherein the controller generates the source ID of each ultracapacitor from the received signals.

9 . The energy storage system of claim 7 , wherein the controller forms part of a controller area network (CAN) that is adapted to communicate with the ultracapacitors and the associated resistors using CAN signals.

10 . The energy storage system of claim 5 , wherein the source ID for each ultracapacitor from the plurality of serially connected ultracapacitors is a unique source ID.

11 . The energy storage system of claim 5 , wherein the plurality of ultracapacitors is coupled with at least one power source.

12 . A method for identifying an ultracapacitor from a plurality of serially connected ultracapacitors, the method comprising:
connecting a resistor to each ultracapacitor from the plurality of ultracapacitors such that at least one resistor corresponds with one ultracapacitor; providing a rated voltage to the resistors so as to undergo a voltage drop in sequence across each of the resistors; and generating a source ID for each ultracapacitor from the plurality of serially connected ultracapacitors based on a voltage measured between a resistor input terminal and a negative terminal at a low voltage side of each ultracapacitor.

13 . The method of claim 12 , wherein connecting the resistor to each ultracapacitor comprises connecting the resistor between a resistor input terminal and a resistor output terminal of each ultracapacitor.

14 . The method of claim 12 further comprising connecting the resistors from adjacent ultracapacitors in series.

15 . The method of claim 12 , wherein a sequential voltage drop across each resistor is partly indicative of the source ID of the corresponding ultracapacitor.

16 . The method of claim 12 further comprising providing a controller communicably coupled to each of the serially connected ultracapacitors and resistors, wherein the controller is configured to receive signals indicative of the voltage between the resistor input terminal and the negative terminal at the low voltage side of each ultracapacitor.

17 . The method of claim 16 , wherein the controller generates the source ID of each ultracapacitor from the received signals.

18 . The method of claim 17 , wherein the controller forms part of a controller area network (CAN) that is adapted to communicate with the plurality of serially connected ultracapacitors and the corresponding resistors using CAN signals.

19 . The method of claim 12 , wherein generating a source ID for each ultracapacitor from the plurality of serially connected ultracapacitors includes generating a unique source ID for each ultracapacitor from the plurality of serially connected ultracapacitors.

20 . The method of claim 12 further including displaying the generated source IDs via a display device.

Assignees

• Caterpillar Inc

Inventors

• Janardhan Vijay
• Anuar Hazarul
• Bennani Omar
• Brown Douglas
• Qattum Basheer B

Classifications

• H02J7/443

  using passive battery identification means, e.g. resistors or capacitors (identification by mechanical connections H02J7/751) · CPC title

• G01R31/396 Primary

  Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery · CPC title

• H01G11/10

  Multiple hybrid or EDL capacitors, e.g. arrays or modules (housings, cases, encapsulations or mountings thereof H01G11/78) · CPC title

• H01G11/14

  Arrangements or processes for adjusting or protecting hybrid or EDL capacitors (emergency protective circuit arrangements specially adapted for capacitors, and effecting automatic switching in the event of an undesired change from normal working conditions H02H7/16; emergency protective circuit arrangements for limiting excess current or voltages without disconnection H02H9/00) · CPC title

• H02J7/485

  with provisions for charging different types of batteries · CPC title