Prefailure monitoring system

Patent metadata

Field	Value
Publication number	US-11380943-B2
Application number	US-202117195088-A
Country	US
Kind code	B2
Filing date	Mar 8, 2021
Priority date	Oct 11, 2016
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

A system includes an energy storage system having a plurality of batteries and a monitoring system operably coupled to the energy storage system. The monitoring system is configured to receive a first measurement corresponding to a characteristic from at least one of the plurality of batteries, determine a baseline from the first measurement, receive a second measurement from the at least one of the plurality of batteries, and compare the second measurement with the baseline to identify an issue with the at least one of the plurality of batteries. The monitoring system is also configured to perform a remediation action in response to the identified issue.

First claim

What is claimed is:

1. An energy storage system comprising:
a first subsystem comprising a plurality of energy storage devices;
a second subsystem comprising a plurality of environmental condition sensors; and
a monitoring system operably coupled to the first subsystem and the second subsystem and programmed to perform the following steps:
determine an energy flow status of the first subsystem;
receive a first plurality of measurements from the second subsystem during a first period of time when the energy flow status of the first subsystem corresponds to a first status condition;
calculate a baseline value for an environmental condition using the first plurality of measurements;
at a second period of time, receive a second plurality of measurements from the second subsystem when the energy flow status condition is the same as that determined at the first period of time;
using the second plurality of measurements, identify a future critical condition by determining that the second plurality of measurements indicate a trend which will extend outside of a predetermined range from the baseline; and
perform a remediation action that is dependent upon the energy flow status.

2. The system of claim 1 , wherein the second subsystem comprises temperature sensors for each of the plurality of energy storage devices and the future critical condition is a temperature value outside of a predetermined range.

3. The system of claim 2 , wherein the remediation action comprises ventilation of the first subsystem.

4. The system of claim 2 , wherein the remediation action comprises activation of a climate control system.

5. The system of claim 2 , wherein the remediation action comprises disconnecting at least one of the energy storage devices from the first subsystem.

6. The system of claim 1 wherein the remediation action comprises limiting one of a charging current or a discharging current.

7. The system of claim 1 , wherein the environmental condition sensors comprise at least one gas sensor.

8. The system of claim 7 , wherein the remediation action comprises ventilation of the first subsystem.

9. The system of claim 7 , wherein the remediation action comprises disconnecting at least one of the energy storage devices from the first subsystem.

10. The system of claim 1 , wherein the energy flow status is a flow of energy into the first subsystem.

11. The system of claim 1 , wherein the energy flow status is a flow of energy out of the first subsystem.

12. A method of managing an energy storage system comprising:
determining an energy flow status of a subsystem comprising a plurality of energy storage devices;
receiving a first plurality of environmental condition measurements during a first period of time when the energy flow status of the subsystem corresponds to a status condition selected from a flow of energy into the subsystem or a flow of energy out of the subsystem;
calculating a baseline value for an environmental condition using the first plurality of measurements;
receiving a second plurality of environmental condition measurements during a second period of time when the energy flow status condition is the same as that determined at the first period of time;
identifying a future critical condition by determining that the second plurality of measurements indicate a trend which will extend outside of a predetermined range from the baseline; and
performing a remediation action that is dependent upon the energy flow status.

13. The method of claim 12 , wherein the received plurality of environmental conditions are temperatures and the future critical condition is a temperature measurement outside of a predetermined range.

14. The method of claim 13 , wherein the remediation action comprises activation of a climate control system.

15. The method of claim 12 , wherein the remediation action comprises disconnecting at least one of the energy storage devices from the subsystem.

16. The method of claim 12 , wherein the remediation action comprises limiting one of a charging current or a discharging current.

17. The method of claim 12 , wherein the environmental condition sensors comprise at least one gas sensor.

18. The method of claim 17 , wherein the remediation action comprises ventilation of the subsystem.

19. A system comprising:
a first subsystem comprising a plurality of energy storage components;
a second subsystem comprising a plurality of environmental condition sensors;
a discharge subsystem operably coupled to and configured to remove energy from the energy storage components of the first subsystem; and
a monitoring system operably coupled to the first subsystem, the second subsystem, and the discharge subsystem, and programmed to perform the following steps:
receive environmental data from the second subsystem representing sensed environmental conditions;
analyze the environmental data to detect a hazardous environmental condition; and
if a hazardous environmental condition is detected, cause the discharge subsystem to remove energy from the energy storage components of the first subsystem.

20. The system of claim 19 , wherein the second subsystem is configured to conditions indicative of combustion.

Assignees

• Oneevent Tech Inc

Inventors

• Wedig Kurt Joseph
• Parent Daniel Ralph

Classifications

• H02J7/84

  Control of state of health [SOH] · CPC title

• H02J7/865 Primary

  Battery or charger load switching, e.g. concurrent charging and load supply (H02J7/50 takes precedence) · CPC title

• H01M10/482 Primary

  for several batteries or cells simultaneously or sequentially · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H02J9/061

  for DC powered loads · CPC title