CA2448536A1 - Back-up power system - Google Patents
Back-up power system Download PDFInfo
- Publication number
- CA2448536A1 CA2448536A1 CA002448536A CA2448536A CA2448536A1 CA 2448536 A1 CA2448536 A1 CA 2448536A1 CA 002448536 A CA002448536 A CA 002448536A CA 2448536 A CA2448536 A CA 2448536A CA 2448536 A1 CA2448536 A1 CA 2448536A1
- Authority
- CA
- Canada
- Prior art keywords
- battery
- capacity
- batteries
- management unit
- power system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
Abstract
A back-up power system having a monitoring system for determining, and for allowing remote monitoring of, a back-up time can be provided by a plurality of batteries for a given application, at all times. The back-up power system includes a plurality of batteries (10(1) to (10(n)), each having an integrat ed circuit adapted to monitor individual battery's state of health. The back-up power system also includes a data management unit (25) for evaluating the ba ck- up time available from the plurality of batteries based on a sum of individu al battery available capacity, a measured ambient temperature (35) and a continuously updated measured application current load (34). The available back-up time and the measured application current load are accessible to a remote user (30) via a communication link (28).
Claims (15)
1. A back-up power system having a monitoring system for determining and for allowing remote monitoring of a back-up time that can be provided by a plurality of batteries, at all time, in a given application requiring a given current load, said back-up power system comprising:
- a plurality of batteries, each having an integrated circuit adapted to monitor individual battery's state of health based on an internal resistance measurement;
and - a data management unit operative to evaluate the back-up time available from said plurality of batteries based on a sum of individual battery available capacity, a measured ambient temperature and a continuously updated measured application current load - a communication link for exchanging data with a remote user, said available back-up time and said measured application current load being accessible to the remote user via said communication link.
- a plurality of batteries, each having an integrated circuit adapted to monitor individual battery's state of health based on an internal resistance measurement;
and - a data management unit operative to evaluate the back-up time available from said plurality of batteries based on a sum of individual battery available capacity, a measured ambient temperature and a continuously updated measured application current load - a communication link for exchanging data with a remote user, said available back-up time and said measured application current load being accessible to the remote user via said communication link.
2. A back-up power system as defined in claim 1 wherein said individual battery available capacity is obtain by subtracting a delivered capacity of each said plurality of batteries from an initial capacity of each said plurality of batteries, said initial capacity being modified by a value of the state of health of a battery.
3. A back-up power system as defined in claim 2 wherein each said plurality of batteries comprises at least one heating element for controlling individual battery internal temperature, said measured ambient temperature being used to correlate an expected battery capacity consumed by said at least one heating element of all said plurality of batteries; said data management unit subtracting expected battery capacity consumed by said at least one heating element from said initial capacity.
4. A back-up power system as defined in claim 3 wherein said back-up time available from said plurality of batteries is calculated as the sum of individual battery available capacity divided by said continuously updated measured application current load.
5. A back-up power system as defined in claim 4 further comprising a load transmitter unit connected to said data management unit, itself connected to a thermocouple and to a current transducer, said load transmitter unit receiving signals representative of the ambient temperature at the plurality of batteries' location and of the application current load and sending said signals in computer readable form to said data management unit for calculation of said back-up time available.
6. A back-up power system as defined in claim 5 wherein said data management unit comprises a memory in which is stored a table of expected battery capacity consumed by said at least one heating element as a function of ambient temperature and discharge rate.
7. A back-up power system as defined in claim 6, wherein said integrated circuit comprises a memory in which are stored a plurality of initial battery capacities, each initial battery capacity corresponding to a discharge curve representative of a battery state of health; said integrated circuit selecting an initial capacity corresponding to one of said battery discharge curves based on its state of health to determine said delivered capacity, and transferring a value of said delivered capacity to said data management unit.
8. A back-up power system as defined in claim 7, wherein said state of health is defined by a measurement of an internal resistance of individual batteries, said internal resistance representative of the deterioration of a respective individual battery through chemical degradation and aging.
9. A back-up power system as defined in claim 8, wherein said integrated circuit provides an electronic signature with any transfer of data sent to said data management unit.
10. A back-up power system as defined in claim 9, wherein said integrated circuit generates an alarm signal which is relayed to said data management unit if any deficiencies within its corresponding battery is found; said alarm signal accessible by a remote user.
11. A back-up power system as defined in claim 3, wherein said plurality of batteries are Lithium polymer batteries.
12. A method for determining the back-up time that can be provided by a plurality of batteries, at all time, in a given application requiring a given current load, the method comprising the steps of:
- coupling a plurality of batteries to a data management unit; each battery of said plurality of batteries having an integrated circuit adapted to monitor individual battery's parameters and at least one heating element for controlling individual battery internal temperature;
- coupling an application current load reading device and an ambient temperature reading device to said data management unit;
- determining an initial battery capacity based on individual battery's state of health; said state of health defined by an internal resistance measurement;
- calculating individual battery's delivered capacity;
- correlating an expected battery capacity consumed by said at least one heating element of each said battery based on a measured ambient temperature;
- calculating total available capacity of said plurality of batteries by subtracting said expected battery capacity consumed by said at least one heating element of each said batteries and said delivered capacity from said initial battery capacity to obtain individual battery available capacity; the sum of all individual battery available capacity being the total available capacity of said plurality of batteries;
- calculating back-up time available from said plurality of batteries by dividing total available capacity by a measured current load obtained from said current load reading device; and - having said back-up time information accessible for remote monitoring at all time.
- coupling a plurality of batteries to a data management unit; each battery of said plurality of batteries having an integrated circuit adapted to monitor individual battery's parameters and at least one heating element for controlling individual battery internal temperature;
- coupling an application current load reading device and an ambient temperature reading device to said data management unit;
- determining an initial battery capacity based on individual battery's state of health; said state of health defined by an internal resistance measurement;
- calculating individual battery's delivered capacity;
- correlating an expected battery capacity consumed by said at least one heating element of each said battery based on a measured ambient temperature;
- calculating total available capacity of said plurality of batteries by subtracting said expected battery capacity consumed by said at least one heating element of each said batteries and said delivered capacity from said initial battery capacity to obtain individual battery available capacity; the sum of all individual battery available capacity being the total available capacity of said plurality of batteries;
- calculating back-up time available from said plurality of batteries by dividing total available capacity by a measured current load obtained from said current load reading device; and - having said back-up time information accessible for remote monitoring at all time.
13. A method for determining the back-up time as defined in claim 12 further comprising the step of storing into a memory of said data management unit a table of expected battery capacity consumed by said at least one heating element as a function of ambient temperature and discharge rate.
14. A method for determining the back-up time as defined in claim 13 wherein said integrated circuit comprises a memory in which are stored a plurality of initial battery capacities, each initial battery capacity corresponding to a discharge curve representative of a battery state of health and battery temperature in table form; said integrated circuit selecting one of said initial battery capacities based on individual battery state of health to determine said delivered capacity, and transferring a value of said delivered capacity to said data management unit.
15. A method for determining the back-up time as defined in claim 11 wherein a plurality of initial battery capacities as a function of battery state of health are stored in said memory of said data management unit; said data management unit selecting one of said initial battery capacities based on data representative of individual battery state of health received from said integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002448536A CA2448536C (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002348586A CA2348586A1 (en) | 2001-05-25 | 2001-05-25 | Power management system |
| CA2,348,586 | 2001-05-25 | ||
| CA002448536A CA2448536C (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
| PCT/CA2002/000766 WO2002097946A2 (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2448536A1 true CA2448536A1 (en) | 2002-12-05 |
| CA2448536C CA2448536C (en) | 2009-12-01 |
Family
ID=31496513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002448536A Expired - Lifetime CA2448536C (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2448536C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2996219A1 (en) * | 2014-09-10 | 2016-03-16 | Moog Unna GmbH | Method to prepare a back up energy store for operation |
| US10516293B2 (en) * | 2017-01-03 | 2019-12-24 | Cyber Power Systems Inc. | Un-interruptible power supply with indication of battery internal resistance |
| CN111428896A (en) * | 2020-04-02 | 2020-07-17 | 硕能(上海)自动化科技有限公司 | Lithium ion capacitor back-up power supply device |
| CN112119522A (en) * | 2018-07-11 | 2020-12-22 | 康明斯公司 | Integration of secondary lithium ion batteries in power generation |
| CN112398212A (en) * | 2020-11-30 | 2021-02-23 | 南京四象新能源科技有限公司 | Standby power supply control method and device, energy storage system and storage medium |
| CN114280417A (en) * | 2021-12-20 | 2022-04-05 | 新疆交投科技有限责任公司 | Power failure and data transmission processing method for energy efficiency and environment monitoring system |
-
2002
- 2002-05-24 CA CA002448536A patent/CA2448536C/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2996219A1 (en) * | 2014-09-10 | 2016-03-16 | Moog Unna GmbH | Method to prepare a back up energy store for operation |
| WO2016037834A1 (en) * | 2014-09-10 | 2016-03-17 | Moog Unna Gmbh | Method for preparing an emergency energy store for operation |
| CN107078540A (en) * | 2014-09-10 | 2017-08-18 | 穆格昂纳公司 | Carry out method for operation for preparing emergent energy storing device |
| CN107078540B (en) * | 2014-09-10 | 2020-07-07 | 穆格昂纳公司 | Method for preparing an emergency energy storage device for operation |
| US10985599B2 (en) | 2014-09-10 | 2021-04-20 | General Electric Renovables Espana, S.L. | Method for preparing an emergency energy store for operation |
| US10516293B2 (en) * | 2017-01-03 | 2019-12-24 | Cyber Power Systems Inc. | Un-interruptible power supply with indication of battery internal resistance |
| CN112119522A (en) * | 2018-07-11 | 2020-12-22 | 康明斯公司 | Integration of secondary lithium ion batteries in power generation |
| CN111428896A (en) * | 2020-04-02 | 2020-07-17 | 硕能(上海)自动化科技有限公司 | Lithium ion capacitor back-up power supply device |
| CN111428896B (en) * | 2020-04-02 | 2024-02-20 | 硕能(上海)自动化科技有限公司 | Lithium ion capacitor backup power supply device |
| CN112398212A (en) * | 2020-11-30 | 2021-02-23 | 南京四象新能源科技有限公司 | Standby power supply control method and device, energy storage system and storage medium |
| CN114280417A (en) * | 2021-12-20 | 2022-04-05 | 新疆交投科技有限责任公司 | Power failure and data transmission processing method for energy efficiency and environment monitoring system |
| CN114280417B (en) * | 2021-12-20 | 2023-08-08 | 新疆交投科技有限责任公司 | Power failure and data transmission processing method for energy efficiency and environment monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2448536C (en) | 2009-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220524 |
|
| MKEX | Expiry |
Effective date: 20220524 |