WO2002097946A2 - Back-up power system - Google Patents
Back-up power system Download PDFInfo
- Publication number
- WO2002097946A2 WO2002097946A2 PCT/CA2002/000766 CA0200766W WO02097946A2 WO 2002097946 A2 WO2002097946 A2 WO 2002097946A2 CA 0200766 W CA0200766 W CA 0200766W WO 02097946 A2 WO02097946 A2 WO 02097946A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- capacity
- batteries
- management unit
- data management
- Prior art date
Links
Classifications
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- 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
-
- 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
-
- 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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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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
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
-
- 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]
- G01R31/364—Battery terminal connectors with integrated measuring arrangements
-
- 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
- H02J9/061—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 for DC powered loads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to the field of power systems. More specifically, the invention relates to a back-up power system, as well as to a method for determining a battery string back-up time that can be provided by a plurality of batteries, at all times, in a given application requiring a given current load.
- Electric public utilities normally provide energy to telecommunication networks.
- the traditional wire line telephony networks have been required to have extremely high reliability levels (between 99.999% and 99.99999%) to handle lifeline services such as 911 and alarm systems, while the electric utilities only offer a 99.9% reliability level. It is therefore important and considered best practice for telephone companies to have 8 hours of standby energy to power their network equipment in the event of a power outage.
- More recent telecommunication technologies, such as wireless and broadband, are also moving towards a high level of network reliability.
- Batteries for power sources are usually provided in banks or strings, for example, a string of 24 batteries is often used for back-up purposes in central offices of telecommunications providers and in remote locations of transmission stations.
- These backup battery power systems provide the energy to power equipment in the event of an electrical outage or failure. Therefore, maintaining the reliability of battery power systems, especially backup battery power systems, is extremely important. Further, it is important to be able to predict the level of power needed in case of power outages or failures and plan where extra batteries may be needed.
- operators and equipment suppliers have struggled to offset the costs and risks associated with battery reliability in the hostile remote environment.
- 6,211,654 discloses iterative calculations based on voltage readings at specific intervals to estimate the remaining back-up time or current discharge capability of a lead-acid battery.
- the method disclosed provides only a rough estimate of the back-up time and does not take into account temperature variables, specific loads of the equipment, and battery age and or deterioration.
- Lithium Polymer (LP) batteries on the other hand have relatively high density energy (high energy generation in a low volume package), relatively high safety margins, and produce energy from a highly predictable electrochemical system.
- Lithium Polymer batteries are equipped with on-board control and monitoring integrated electronics able to accurately measure each battery's SOH and SOC individually taking into account temperature variables.
- US Pat. No. 5,705,929 discloses a method and apparatus for centrally monitoring the capacity of batteries in a battery string including electrical leads connected to each battery terminal of the battery, string.
- a capacity testing system a) switches between the electrical leads for sequentially selecting the leads associated with the terminals of each battery, b) measures the internal resistance of the battery associated with each selected pair of electrical leads, c) compares the internal resistance of each battery cell to an internal resistance threshold, and d) triggers an alarm when the internal resistance of a battery exceeds the internal resistance threshold.
- a central monitoring station monitors battery capacity data and alarm signals from various battery strings, schedules battery capacity testing, transmits control commands to each capacity testing system for i) scheduling testing, ii) initialising upload of capacity data, and iii) requesting status information, provides battery capacity data analysis, and uploads information to a network management computer.
- This system is an improvement over the previous manual testing procedures however it falls short in that it can only determine the apparent State of Health of the battery power system as good or not good, detecting malfunctions of the batteries (alarms) and relaying the alarms to a central monitoring system. This system is unable to accurately predict battery back-up time based on real time data. When an actual power outage occurs, the end user is left hoping that the back-up system will last.
- the invention provides 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 times, in a given application requiring a given current load.
- the back-up power system includes a plurality of batteries, each having an integrated circuit adapted to monitor individual battery's state of health.
- the back-up power system also includes a data management unit for evaluating the back-up time available from the plurality of batteries. The back-up time is evaluated on the basis of a sum of individual battery available capacity, a measured ambient temperature and a continuously updated measured application current load.
- the value of available back-up time is accessible to a remote user via a communication link of the back-up power system.
- Figure 1 is a diagram of a back-up power system of telecommunication equipment installed in a remote telecommunication outside plant.
- FIG. 1 is a diagram illustrating a string 10 of Lithium Polymer (LP) batteries 10(1) to 10(n) installed as a back-up power source in a remote telecommunication outside plant typical to telecommunication networks.
- Figure 1 also depicts a monitoring system 12 comprising a Data Management Unit 25 (DMU) and a Load Transmitter Unit 26 (LTU).
- the monitoring system 12 provides centralized monitoring of battery capacity for each battery 10(1) to 10(n), and of the total capacity of battery string 10. In such applications, the system is totally automated and requires no manual intervention after being installed and initialized.
- the telecommunications industry generally utilizes strings of batteries, i.e., groups of batteries attached in parallel, series, or both, to supply DC power to telecommunications equipment.
- Lithium polymer batteries in a back-up telecommunications application, two to eight LP batteries, rated at 70Ah would be connected in parallel to form a battery string having a total theoretical capacity of between 140 Ah to 560 Ah.
- the particular voltages and amperages discussed are provided by way of example only, it being understood that depending upon the particular telecommunications or other applications, the batteries or battery strings may have different terminal voltages, different ratings, smaller batteries may be connected in series in strings themselves connected in parallel, different number of batteries may be connected together, etc.
- the back-up power system includes a plurality of LP batteries 10(1) to 10(n), all of which are connected in parallel connection to provide power to a load 20 such as a telecommunication cabinet, when the public utility network fails.
- a rectifier 22 receives AC line power from the public utility network and provides power to load 20.
- Rectifier 22 is connected to load 20 and to battery string 10 and provides a rectified charging voltage to recharge the string of LP batteries 10(1) to 10(n) when required.
- a data management unit 25 having memory for storage of data and program algorithms for data processing is connected to the integrated control and diagnosis circuit of each battery 10(1) to 10(n) and to a load transmitter unit 26.
- Data management unit 25 further comprises an external communication port 28 adapted to send and receive data to and from a remote user 30 either through a local connection such as a portable computer using CAN, USB, RS- 232, IrDA or TCP-IP protocols or through internet or telephone linked to a remote network monitoring station using TCP-IP or modem protocols.
- a local connection such as a portable computer using CAN, USB, RS- 232, IrDA or TCP-IP protocols or through internet or telephone linked to a remote network monitoring station using TCP-IP or modem protocols.
- each LP energy module 10(1) to 10(n) comprises an integrated circuit which perform, at regular intervals, diagnosis evaluation of the module's individual critical parameters such as: its state of health (SOH); its state of charge (SOC); its initial capacity; its delivered capacity; and feeds this data to data management unit 25 along with its electronic signature which is stored into the memory of data management unit 25.
- SOH state of health
- SOC state of charge
- the state of charge at the module level is defined as:
- each module 10(1) to 10(n) preferably measures the internal resistance of each individual electrochemical cell of a module during a small charge or discharge, one cell at a time, to establish the state of health of the module.
- the state of health of a module represents the deterioration of the module through chemical degradation and aging and is expressed as a percentage of the initial capacity of the module. The percentage value of the state of health of the module is applied to the initial capacity in the calculation of the module's state of charge.
- the state of health's value is also used to determine the selection of an initial capacity based on a corresponding discharge curve stored in the memory of the integrated circuit, which is used to calculate the delivered capacity.
- the delivered capacity is calculated as the current delivered by the module over time, which represents the area under the discharge curve. The selected initial capacity and the module's state of charge, adjusted with the state of health value, determine the exact available capacity of the module.
- the determination of the available capacity of each module 10(1) to 10(n) may also be calculated at the level of the Data Management Unit 25.
- discharge curves corresponding to various states of health are stored in the memory of data management unit 25 instead of the memory of the integrated circuit and its selection based on measured internal resistance is performed by data management unit 25.
- Data management Unit 25 receives from each module 10(1) to 10(n), its state of health value and monitors the current delivered by each module over time to calculate the delivered capacity of each modulel ⁇ (l) to 10(n). Each module's available capacity is then calculated based on the selected initial capacity and the delivered capacity for each LP module 10(1) to 10(n).
- Data management unit 25 also monitors load 20 and the cabinet's ambient temperature through load transmitter unit 26.
- a DC current transducer 34 and a thermocouple 35 are connected to load transmitter unit 26 which in turn provides data management unit 25 with ongoing readings of the current drawn by load 20 and actual temperature inside the telecommunication cabinet.
- the ongoing reading of the current drawn by load 20 is required to establish the exact power requirement of the telecommunication equipment at any given time in order to effectively evaluate the exact back-up time available from battery string 10 relative to the load current.
- Load fluctuates according to demand and will affect the back-up time available from battery string 10.
- Data monitoring unit 25 monitors load changes in the telecommunication equipment to insure that when battery string 10 is no longer capable of providing an effective eight hours of back-up time, remote user 30 is made aware that additional modules 10(n) are required to compensate for the load increases.
- Each LP modules 10(1) to 10(n) comprises one or more heating element 14 required to maintain or raise the electrochemistry of the LP module to an optimal temperature for a given condition (floating, charge and discharge).
- Heating elements 14 are resistive elements electrically driven, drawing their required current directly from their respective modules 10(1) to 10(n). The energy drawn by heating elements 14 is therefore not available for as back-up energy and must be subtracted from the individual module's initial capacity to obtain the exact total available capacity of the entire module string 10 to the load in case of power outage or failure.
- the capacity consumed by heating element 14 through a full discharge has been established as a function of the cabinet's ambient temperature.
- the heating elements 14 When the ambient temperature is low (e.g., -40°C and the like), the heating elements 14 will require more energy then when ambient temperature is high (e.g., 30°C and the like) and closer to the optimal temperature for discharge condition which is around 60°C. For example, when the ambient temperature of the cabinet is -20°C, 9Ah will be consumed by heating element 14 over a full discharge at a load current of C/8. The entire range of capacity consumed by heating element 14 for ambient temperature ranging from -40°C to 65°C and for various load current has been tabulated and stored into the memory of data management unit 25.
- Data management unit's 25 primary function is to monitor the total available capacity of the entire module string 10, the state of health of each module 10(1) to 10(n), to calculate the available back-up time of the power system and make this information available to remote user 30.
- data management unit 25 proceeds to calculate the total available capacity of the entire module string 10.
- Data management unit first retrieves from memory the corresponding capacity (Ah) expected to be consumed by heating element 14 over a full discharge for the ambient temperature and instantaneous load current readings.
- Data management unit 25 then subtracts the capacity (Ah) expected to be consumed by heating element 14 from the initial capacity (Ah) of each module 10(1) to 10(n) and calculates the total available capacity of the module string 10 as the sum of the corrected available capacities of each module 10(1) to 10(n) : ⁇ (initial capacity -heater capacity - delivered capacity).
- the total available capacity of the power system expressed in C (Ah) is the total available energy that can be withdrawn from fully charged modules 10(1) to 10(n) for a specific set of operating conditions which include the instantaneous load current and ambient temperature.
- the back-up time available from module string 10 is the result of the total available capacity C (Ah) of the system divided by instantaneous load current expressed in Amps (A) and is expressed in hours. Best practice dictates that when modules 10(1) to 10(n) are in floating mode, the calculated back-up time remains at or above eight hours. The updated calculated back-up time value is available to remote user 30 in real time.
- the integrated circuit of LP modules 10(1) to 10(n) measures the current perceived at the module level. Since LP modules 10(1) to 10(n) are connected in parallel, the current perceived by each module is a fraction of the current supplied to load 20 and measured by DC current transducer 34. The current load perceived by each module is measured through a shunt resistance as is well known in the art and continuously monitored. The current load perceived by each module expressed in Amps (A) is transmitted to data management unit 25. Data management unit 25 can calculate at any time the delivered capacity of each module 10(1) to 10(n).
- the data management unit 25 is powered by the rectifier used to charge module string 10 in the exterior telecommunications cabinet. In the event of a power outage, LP modules string 10 immediately takes over the supply of DC current to load 20 and to data management unit 25. During loss of primary power, data management unit 25 continues to monitor the battery capacity of each LP module 10(1) to 10(n) by subtracting delivered capacity, and to calculate remaining back-up time based on instantaneous load current readings from load transmitter unit 26 and provides remote user 30 with updated remaining back-up time available from the entire module string 10. The remaining back-up time is updated at short intervals such that the remote user 30 is fully aware of the situation of the telecommunication cabinet in real time.
- All data information stored in memory are available for remote user 30 through external communication port 28. Gathering data from modules 10(1) to 10(n) and calculations are ordinarily performed using pre-programmed routine at regular intervals. Intervals as well as calculations may be amended, updated or changed by remote user 30.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Power Sources (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003501025A JP3862698B2 (en) | 2001-05-25 | 2002-05-24 | Backup power system |
CA002448536A CA2448536C (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
US10/478,746 US7218078B2 (en) | 2001-05-25 | 2002-05-24 | Back-up power system and monitoring system therefor |
EP02729716A EP1396065B1 (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
AU2002302256A AU2002302256A1 (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2,348,586 | 2001-05-25 | ||
CA002348586A CA2348586A1 (en) | 2001-05-25 | 2001-05-25 | Power management system |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2002097946A2 true WO2002097946A2 (en) | 2002-12-05 |
WO2002097946A3 WO2002097946A3 (en) | 2003-07-10 |
WO2002097946A8 WO2002097946A8 (en) | 2004-02-19 |
Family
ID=4169101
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2002/000766 WO2002097946A2 (en) | 2001-05-25 | 2002-05-24 | Back-up power system |
PCT/CA2002/000767 WO2002097456A2 (en) | 2001-05-25 | 2002-05-24 | Self-diagnosis system for an energy storage device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2002/000767 WO2002097456A2 (en) | 2001-05-25 | 2002-05-24 | Self-diagnosis system for an energy storage device |
Country Status (6)
Country | Link |
---|---|
US (3) | US7218078B2 (en) |
EP (2) | EP1396066B1 (en) |
JP (3) | JP3862698B2 (en) |
AU (2) | AU2002302256A1 (en) |
CA (1) | CA2348586A1 (en) |
WO (2) | WO2002097946A2 (en) |
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US8779718B2 (en) | 2003-09-22 | 2014-07-15 | Valence Technology, Inc. | Electrical systems and battery assemblies |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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US8471531B2 (en) * | 2007-03-20 | 2013-06-25 | Belkin International, Inc. | Estimated remaining life of a battery included in an uninterruptible power supply |
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US8437908B2 (en) * | 2008-03-10 | 2013-05-07 | 4 Peaks Technology Llc | Battery monitor system attached to a vehicle wiring harness |
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US8581548B2 (en) * | 2009-12-28 | 2013-11-12 | 4 Peak Technology LLC | Integrated cell balancing system, method, and computer program for multi-cell batteries |
US20100217551A1 (en) * | 2009-02-25 | 2010-08-26 | Lonnie Calvin Goff | Embedded microprocessor system for vehicular batteries |
US20090210736A1 (en) * | 2008-02-20 | 2009-08-20 | Lonnie Calvin Goff | Multi-function battery monitor system for vehicles |
US8386199B2 (en) * | 2009-01-08 | 2013-02-26 | 4 Peaks Technology Llc | Battery monitoring algorithms for vehicles |
CN102084517A (en) | 2008-05-15 | 2011-06-01 | 江森自控帅福得先进能源动力系统有限责任公司 | Battery system |
US8111037B2 (en) * | 2008-06-27 | 2012-02-07 | GM Global Technology Operations LLC | Method for battery state-of-health monitoring using battery voltage during vehicle starting |
US8729732B2 (en) | 2008-07-10 | 2014-05-20 | T-Mobile Usa, Inc. | Cell site power generation |
US8255176B2 (en) * | 2008-08-07 | 2012-08-28 | Research In Motion Limited | Systems and methods for monitoring deterioration of a rechargeable battery |
KR100970841B1 (en) | 2008-08-08 | 2010-07-16 | 주식회사 엘지화학 | Apparatus and Method for estimating battery's state of health based on battery voltage variation pattern |
DE102008037193A1 (en) * | 2008-08-11 | 2010-02-18 | Endress + Hauser Process Solutions Ag | Method for monitoring the remaining service life of a battery |
JP5435928B2 (en) * | 2008-11-21 | 2014-03-05 | 矢崎総業株式会社 | Bus bar device and battery liquid temperature estimating device |
DE102008059966B4 (en) | 2008-12-02 | 2011-06-22 | Daimler AG, 70327 | Battery having a plurality of battery cells arranged in a cell assembly and using a battery |
DE102008059964B4 (en) | 2008-12-02 | 2011-06-16 | Daimler Ag | Battery with a plurality of cell cells forming a battery cell and use of a battery |
US8399115B2 (en) * | 2009-02-04 | 2013-03-19 | Bayerische Motoren Werke Aktiengesellschaft | System and apparatus for monitoring large battery stacks using wireless sensor networks |
CN102439781A (en) | 2009-05-11 | 2012-05-02 | 马亨德拉雷瓦电动汽车私人有限公司 | System and method for monitoring and controlling energy system |
US8412272B2 (en) | 2009-07-24 | 2013-04-02 | T-Mobile Usa, Inc. | Rectifier circuit management system, such as for use in cell site power systems |
DE102009050125A1 (en) | 2009-10-21 | 2011-04-28 | Continental Automotive Gmbh | Electric energy storage with integrated deep discharge device |
TWI411796B (en) * | 2009-12-22 | 2013-10-11 | Ind Tech Res Inst | Apparatus for estimating battery's state of health |
US8310103B2 (en) * | 2010-03-17 | 2012-11-13 | T-Mobile Usa, Inc. | Cell site power system management, including battery circuit management |
US8796883B2 (en) * | 2010-04-01 | 2014-08-05 | Westell, Inc. | Hybrid power management system and method for unmanned remote cell sites |
US20110258126A1 (en) * | 2010-04-14 | 2011-10-20 | Lg Chem, Ltd. | Systems and methods for determining a warranty obligation of a supplier to an original equipment manufacturer for a vehicle battery pack |
JP5644855B2 (en) * | 2010-05-14 | 2014-12-24 | トヨタ自動車株式会社 | Secondary battery control device and control method |
EP2583867B1 (en) * | 2010-06-18 | 2019-10-02 | Toyota Jidosha Kabushiki Kaisha | Deterioration degree determination device |
US20120033676A1 (en) * | 2010-08-03 | 2012-02-09 | Texas Instruments Incorporated | Mgcp package for battery backup control |
US9065292B2 (en) | 2010-08-23 | 2015-06-23 | California Institute Of Technology | Methods and systems for charging electrochemical cells |
US8888743B2 (en) * | 2010-12-13 | 2014-11-18 | Baxter International Inc. | Battery management system |
US20120210150A1 (en) * | 2011-02-10 | 2012-08-16 | Alcatel-Lucent Usa Inc. | Method And Apparatus Of Smart Power Management For Mobile Communication Terminals |
US20120253713A1 (en) * | 2011-04-01 | 2012-10-04 | Continental Automotive Systems, Inc. | Estimating the capacity of a li-ion battery based on initial part of the discharge curve |
WO2012148019A1 (en) * | 2011-04-28 | 2012-11-01 | Sk 이노베이션 주식회사 | Device and method for measuring the capacity degradation of a battery |
KR20120134415A (en) * | 2011-06-02 | 2012-12-12 | 에스케이이노베이션 주식회사 | Method for estimating state of health |
US8872389B2 (en) | 2011-08-09 | 2014-10-28 | Creston Electronics Inc. | Intelligent backup power system |
CN103023560B (en) * | 2011-09-28 | 2015-10-07 | 上海电信通信设备有限公司 | A kind of control method of backup battery for terminal of telecommunication optical network |
US8835029B2 (en) | 2011-10-04 | 2014-09-16 | International Business Machines Corporation | Fuse for three dimensional solid-state battery |
ITBO20110699A1 (en) * | 2011-12-07 | 2013-06-08 | Magneti Marelli Spa | ESTIMATE METHOD OF THE HEALTH STATUS OF AN ACCUMULATION SYSTEM IN A HYBRID OR ELECTRIC DRIVE VEHICLE |
US11314854B2 (en) | 2011-12-30 | 2022-04-26 | Bedrock Automation Platforms Inc. | Image capture devices for a secure industrial control system |
US9600434B1 (en) | 2011-12-30 | 2017-03-21 | Bedrock Automation Platforms, Inc. | Switch fabric having a serial communications interface and a parallel communications interface |
US11144630B2 (en) | 2011-12-30 | 2021-10-12 | Bedrock Automation Platforms Inc. | Image capture devices for a secure industrial control system |
US9191203B2 (en) | 2013-08-06 | 2015-11-17 | Bedrock Automation Platforms Inc. | Secure industrial control system |
PL3252854T3 (en) | 2012-04-13 | 2019-04-30 | Lg Chemical Ltd | Battery system for secondary battery comprising blended cathode material, and apparatus and method for managing the same |
EP2841956B1 (en) | 2012-04-27 | 2019-02-13 | California Institute of Technology | An imbedded chip for battery applications |
US10556510B2 (en) | 2012-04-27 | 2020-02-11 | California Institute Of Technology | Accurate assessment of the state of charge of electrochemical cells |
JP6119402B2 (en) * | 2012-05-29 | 2017-04-26 | 株式会社Gsユアサ | Internal resistance estimation device and internal resistance estimation method |
JP5919566B2 (en) * | 2012-05-31 | 2016-05-18 | パナソニックIpマネジメント株式会社 | Control method and control device using the same |
US9077181B2 (en) * | 2013-01-11 | 2015-07-07 | GM Global Technology Operations LLC | Battery section balancing methods and systems |
US9347999B2 (en) * | 2013-03-14 | 2016-05-24 | Emerson Network Power, Energy Systems, North America, Inc. | Methods and systems for warning users of a degraded backup capacity in battery plants |
US20140274219A1 (en) * | 2013-03-14 | 2014-09-18 | Telect Inc. | Telecommunication Power System |
US9537332B2 (en) | 2013-05-30 | 2017-01-03 | Canara, Inc. | Apparatus, system and method for charge balancing of individual batteries in a string of batteries using battery voltage and temperature, and detecting and preventing thermal runaway |
FR3006450B1 (en) * | 2013-06-04 | 2015-05-22 | Renault Sa | METHOD FOR ESTIMATING THE HEALTH STATUS OF AN ELECTROCHEMICAL CELL FOR STORING ELECTRIC ENERGY |
US9389279B2 (en) * | 2013-10-02 | 2016-07-12 | Lg Chem, Ltd. | Battery cell assembly with a thin profile sensor |
JP5888315B2 (en) * | 2013-12-18 | 2016-03-22 | トヨタ自動車株式会社 | Power storage system |
US20150221994A1 (en) * | 2014-02-06 | 2015-08-06 | Derek Ziemian | Calibration Shunt |
US9869723B2 (en) * | 2014-05-22 | 2018-01-16 | Mediatek Inc. | Power management scheme for separately and accurately measuring battery information of each of multiple batteries |
US20150377971A1 (en) * | 2014-06-27 | 2015-12-31 | Icc-Nexergy, Inc. | Required Available Capacity Indication for Battery Backup Unit |
SE540542C2 (en) * | 2014-07-03 | 2018-09-25 | Ctek Sweden Ab | A method for determining a capacity of a battery, a circuit and a battery charger |
US9768625B2 (en) * | 2014-07-04 | 2017-09-19 | Makita Corporation | Battery pack, and method for controlling the same |
US20160061173A1 (en) * | 2014-08-27 | 2016-03-03 | General Electric Company | System and method for determining health of an engine-generator set |
CN104466970B (en) * | 2014-12-22 | 2017-08-08 | 国家电网公司 | Dynamically connection cuts control method, device and system to a kind of prepared auto restart |
CN104734281B (en) * | 2015-01-28 | 2019-04-16 | 惠州Tcl移动通信有限公司 | Wearable mobile power source and its method for controlling power supply |
JP6205401B2 (en) * | 2015-03-13 | 2017-09-27 | 聯發科技股▲ふん▼有限公司Mediatek Inc. | Power management method and power supply system to which power management method is applied |
SE541171C2 (en) | 2015-03-16 | 2019-04-23 | Ctek Sweden Ab | A method for operating a battery charger, and a battery charger |
EP3082215B1 (en) * | 2015-04-13 | 2020-11-25 | Bedrock Automation Platforms Inc. | Secure power supply for an industrial control system |
KR102317500B1 (en) * | 2015-04-29 | 2021-10-26 | 삼성에스디아이 주식회사 | Battery pack |
JP2017028883A (en) * | 2015-07-23 | 2017-02-02 | 京セラ株式会社 | Power storage system and control method for power storage battery |
ITUB20153222A1 (en) * | 2015-08-25 | 2017-02-25 | Oxis Energy Ltd | Battery sensor. |
KR20180044374A (en) * | 2015-08-25 | 2018-05-02 | 옥시스 에너지 리미티드 | Battery Sensor |
US10120034B2 (en) | 2015-10-07 | 2018-11-06 | Canara, Inc. | Battery string monitoring system |
CN105467238A (en) * | 2015-11-30 | 2016-04-06 | 国家电网公司 | Multifunctional portable backup power automatic switching test device |
US11437829B2 (en) | 2016-03-07 | 2022-09-06 | The Regents Of The University Of Michigan | Method to charge lithium-ion batteries with user, cell and temperature awareness |
US10291028B2 (en) | 2016-07-29 | 2019-05-14 | Cummins Power Generation Ip, Inc. | Masterless distributed power transfer control |
KR20180057046A (en) * | 2016-11-21 | 2018-05-30 | 삼성전자주식회사 | Method and apparatus for controlling battery temperature |
JP2018189606A (en) * | 2017-05-11 | 2018-11-29 | 昇 若月 | Device and method for evaluating battery |
CN107271906B (en) * | 2017-05-31 | 2019-10-18 | 宁德时代新能源科技股份有限公司 | battery pack health degree estimation method and device |
US11258285B2 (en) * | 2017-06-06 | 2022-02-22 | The Regents Of The University Of Michigan | User aware charging algorithm that reduces battery fading |
US10712396B2 (en) | 2018-05-29 | 2020-07-14 | NDSL, Inc. | Methods, systems, and devices for monitoring state-of-health of a battery system operating over an extended temperature range |
KR102660502B1 (en) * | 2019-04-18 | 2024-04-24 | 현대모비스 주식회사 | Method for managing battery for vehicle and apparatus for the same |
US11350298B2 (en) * | 2019-04-23 | 2022-05-31 | Centurylink Intellectual Property Llc | Method and system for implementing telecommunications equipment health monitoring and management |
US11175346B2 (en) | 2019-05-20 | 2021-11-16 | Amazon Technologies, Inc. | Power supply monitoring systems and methods using ultrasonic sensors |
US11374415B2 (en) | 2019-05-20 | 2022-06-28 | Amazon Technologies, Inc. | Aerial vehicle fleet maintenance systems and methods |
WO2020243466A1 (en) * | 2019-05-30 | 2020-12-03 | Cummins Inc. | Method and system for estimating an end of life of a rechargeable energy storage device |
CN112448463A (en) * | 2019-08-30 | 2021-03-05 | 戴尔产品有限公司 | Pass-through system based on power consumption/power standby equipment |
CN112630666B (en) * | 2019-10-08 | 2023-10-27 | 中国移动通信集团浙江有限公司 | Storage battery test scheduling method and device |
EP4047380A1 (en) * | 2021-02-18 | 2022-08-24 | FRONIUS INTERNATIONAL GmbH | Method and system for analyzing an electrical energy storage device and power supply system |
US11527911B1 (en) | 2021-10-12 | 2022-12-13 | Appleton Grp Llc | Fault-tolerant battery management system and method |
US20230196846A1 (en) * | 2021-12-17 | 2023-06-22 | Caterpillar Inc. | Machine and battery system prognostics |
DE102022210471A1 (en) * | 2022-10-04 | 2024-04-04 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method for analyzing a condition of a battery pack, analysis device, system and computer program |
CN116008842A (en) * | 2022-11-30 | 2023-04-25 | 广东电网有限责任公司佛山供电局 | New energy data management system, device and method based on low-carbon economy |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5936383A (en) | 1998-04-02 | 1999-08-10 | Lucent Technologies, Inc. | Self-correcting and adjustable method and apparatus for predicting the remaining capacity and reserve time of a battery on discharge |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3886426A (en) * | 1973-03-16 | 1975-05-27 | Eagle Picher Ind Inc | Battery switching circuit |
US3816805A (en) * | 1973-05-16 | 1974-06-11 | Maremont Corp | Dual battery electrical system for internal combustion engine |
JPS61170678A (en) | 1985-01-25 | 1986-08-01 | Nissan Motor Co Ltd | Battery state detector |
US5047722A (en) | 1989-04-17 | 1991-09-10 | Ssmc Inc. | Apparatus for measuring internal resistance of wet cell storage batteries having non-removable cell caps |
US5126675A (en) | 1990-09-14 | 1992-06-30 | Yang Tai Her | Battery capacity monitor |
US5198698A (en) * | 1991-02-11 | 1993-03-30 | Best Power Technology, Inc. | Auxiliary power supply system for providing dc power on demand |
EP0622863B1 (en) | 1992-10-23 | 2002-01-23 | Sony Corporation | Battery pack |
JP3172977B2 (en) | 1993-05-26 | 2001-06-04 | 富士重工業株式会社 | In-vehicle battery capacity meter |
US5631540A (en) | 1994-11-23 | 1997-05-20 | Lucent Technologies Inc. | Method and apparatus for predicting the remaining capacity and reserve time of a battery on discharge |
US5565759A (en) | 1994-12-15 | 1996-10-15 | Intel Corporation | Smart battery providing battery life and recharge time prediction |
US5600230A (en) | 1994-12-15 | 1997-02-04 | Intel Corporation | Smart battery providing programmable remaining capacity and run-time alarms based on battery-specific characteristics |
US5705929A (en) * | 1995-05-23 | 1998-01-06 | Fibercorp. Inc. | Battery capacity monitoring system |
JPH0933620A (en) * | 1995-07-19 | 1997-02-07 | Nippon Telegr & Teleph Corp <Ntt> | Degradation judgment method for lead storage-battery |
JP3416395B2 (en) * | 1996-05-29 | 2003-06-16 | 三洋電機株式会社 | Battery discharging method |
DE19725204C1 (en) | 1997-06-14 | 1999-04-08 | Megamos F & G Sicherheit | Device and method for monitoring the state of charge of a battery |
US6167309A (en) | 1997-09-15 | 2000-12-26 | Cardiac Pacemakers, Inc. | Method for monitoring end of life for battery |
US6072299A (en) | 1998-01-26 | 2000-06-06 | Medtronic Physio-Control Manufacturing Corp. | Smart battery with maintenance and testing functions |
US6218809B1 (en) | 1998-03-20 | 2001-04-17 | Dallas Semiconductor Corporation | Method for monitoring operating parameters of a rechargeable power supply |
JP4013003B2 (en) * | 1998-03-27 | 2007-11-28 | 宇部興産株式会社 | battery pack |
JP3598873B2 (en) * | 1998-08-10 | 2004-12-08 | トヨタ自動車株式会社 | Secondary battery state determination method and state determination device, and secondary battery regeneration method |
JP2000215923A (en) * | 1999-01-25 | 2000-08-04 | Matsushita Electric Ind Co Ltd | Battery degradation judging device |
US6087808A (en) | 1999-04-23 | 2000-07-11 | Pritchard; Jeffrey A. | System and method for accurately determining remaining battery life |
US6124701A (en) | 1999-06-22 | 2000-09-26 | Lucent Technologies, Inc. | System and method for determining battery condition and telecommunications equipment incorporating the same |
JP4186092B2 (en) * | 1999-08-18 | 2008-11-26 | ソニー株式会社 | Battery device and battery management method |
US6307377B1 (en) | 1999-11-05 | 2001-10-23 | Dell Usa, L.P. | Battery charge determination |
US6211654B1 (en) | 2000-07-06 | 2001-04-03 | Telcordia Technologies, Inc. | Method for predicting battery capacity |
US6646561B1 (en) * | 2000-10-06 | 2003-11-11 | Battery Alert Ltd. | Method and device for in-use detecting low cranking strength of a combustion engine battery during engine starting |
CA2348586A1 (en) * | 2001-05-25 | 2002-11-25 | Corporation Avestor Inc. | Power management system |
EP1417503B1 (en) * | 2001-06-29 | 2010-02-17 | Robert Bosch Gmbh | Methods for determining the charge state and/or the power capacity of a charge store |
US6850038B2 (en) * | 2002-05-14 | 2005-02-01 | Yazaki Corporation | Method of estimating state of charge and open circuit voltage of battery, and method and device for computing degradation degree of battery |
-
2001
- 2001-05-25 CA CA002348586A patent/CA2348586A1/en not_active Abandoned
-
2002
- 2002-05-24 AU AU2002302256A patent/AU2002302256A1/en not_active Abandoned
- 2002-05-24 US US10/478,746 patent/US7218078B2/en not_active Expired - Lifetime
- 2002-05-24 EP EP20020729717 patent/EP1396066B1/en not_active Expired - Lifetime
- 2002-05-24 WO PCT/CA2002/000766 patent/WO2002097946A2/en active Application Filing
- 2002-05-24 JP JP2003501025A patent/JP3862698B2/en not_active Expired - Fee Related
- 2002-05-24 EP EP02729716A patent/EP1396065B1/en not_active Expired - Lifetime
- 2002-05-24 JP JP2003500583A patent/JP2004532416A/en active Pending
- 2002-05-24 WO PCT/CA2002/000767 patent/WO2002097456A2/en active Application Filing
- 2002-05-24 US US10/478,745 patent/US6956355B2/en not_active Expired - Lifetime
- 2002-05-24 AU AU2002302257A patent/AU2002302257A1/en not_active Abandoned
-
2005
- 2005-08-10 US US11/200,098 patent/US7132832B2/en not_active Expired - Lifetime
-
2008
- 2008-10-08 JP JP2008262230A patent/JP4913109B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5936383A (en) | 1998-04-02 | 1999-08-10 | Lucent Technologies, Inc. | Self-correcting and adjustable method and apparatus for predicting the remaining capacity and reserve time of a battery on discharge |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8779718B2 (en) | 2003-09-22 | 2014-07-15 | Valence Technology, Inc. | Electrical systems and battery assemblies |
JP2006038859A (en) * | 2004-07-02 | 2006-02-09 | Kinhyakutatsu Kagi Yugenkoshi | Method and system for monitoring battery power by comparison of battery internal resistance and setting warning resistance |
US8115455B2 (en) | 2007-02-06 | 2012-02-14 | Batscap | Power battery module, battery, module charging method, vehicle having the battery |
US11899604B2 (en) | 2011-12-30 | 2024-02-13 | Bedrock Automation Platforms Inc. | Input/output module with multi-channel switching capability |
US11658519B2 (en) | 2011-12-30 | 2023-05-23 | Bedrock Automation Platforms Inc. | Electromagnetic connector for an Industrial Control System |
US11966349B2 (en) | 2011-12-30 | 2024-04-23 | Analog Devices, Inc. | Electromagnetic connector for for an industrial control system |
US11967839B2 (en) | 2011-12-30 | 2024-04-23 | Analog Devices, Inc. | Electromagnetic connector for an industrial control system |
US11688549B2 (en) | 2011-12-30 | 2023-06-27 | Bedrock Automation Platforms Inc. | Electromagnetic connector for an industrial control system |
US11960312B2 (en) | 2013-08-06 | 2024-04-16 | Analog Devices, Inc. | Secure power supply for an industrial control system |
US11700691B2 (en) | 2013-08-06 | 2023-07-11 | Bedrock Automation Platforms Inc. | Industrial control system cable |
US11722495B2 (en) | 2013-08-06 | 2023-08-08 | Bedrock Automation Platforms Inc. | Operator action authentication in an industrial control system |
US20210195742A1 (en) | 2013-08-06 | 2021-06-24 | Bedrock Automation Platforms Inc. | Industrial control system cable |
US11977622B2 (en) | 2013-08-06 | 2024-05-07 | Analog Devices, Inc. | Authentication between industrial elements in an industrial control system |
CN107534313B (en) * | 2015-03-30 | 2021-12-24 | 威尔蒂夫有限公司 | Method for controlling an uninterruptible power supply system to optimize component life |
WO2016156998A1 (en) * | 2015-03-30 | 2016-10-06 | Emerson Network Power Srl | Method of controlling an uninterruptible power supply system to optimize component life |
CN107534313A (en) * | 2015-03-30 | 2018-01-02 | 威尔蒂夫有限公司 | Uninterruptible power system is controlled to optimize the method for component life |
US10305320B2 (en) | 2015-03-30 | 2019-05-28 | Vertiv S.R.L. | Method of controlling an uninterruptible power supply system to optimize component life |
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WO2002097456A2 (en) | 2002-12-05 |
JP2004532416A (en) | 2004-10-21 |
CA2348586A1 (en) | 2002-11-25 |
AU2002302257A1 (en) | 2002-12-09 |
JP3862698B2 (en) | 2006-12-27 |
EP1396065A2 (en) | 2004-03-10 |
JP2004532596A (en) | 2004-10-21 |
US20040232884A1 (en) | 2004-11-25 |
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EP1396066B1 (en) | 2012-12-05 |
WO2002097946A3 (en) | 2003-07-10 |
WO2002097946A8 (en) | 2004-02-19 |
JP2009058518A (en) | 2009-03-19 |
EP1396066A2 (en) | 2004-03-10 |
EP1396065B1 (en) | 2012-07-11 |
US7218078B2 (en) | 2007-05-15 |
US6956355B2 (en) | 2005-10-18 |
WO2002097456A3 (en) | 2003-05-22 |
JP4913109B2 (en) | 2012-04-11 |
US20060028172A1 (en) | 2006-02-09 |
AU2002302256A1 (en) | 2002-12-09 |
US20040178770A1 (en) | 2004-09-16 |
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