STORAGE BATTERY MONITORING METHOD, STORAGE BATTERY MONITORING SYSTEM, AND STORAGE BATTERY SYSTEM

• US 20140089692A1
• Filed: 03/18/2013
• Published: 03/27/2014
• Est. Priority Date: 03/19/2012
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Hanafusa, Hiroshi
• Granted Patent: US 9,720,478 B2
• Time in Patent Office: Days
• US Class Current: 713/310
• CPC Class Codes: G01R 31/367 Software therefor, e.g. for battery testing using modelling or look-up tables
• CPC Class Codes: G01R 31/392 Determining battery ageing or deterioration, e.g. state of health
• CPC Class Codes: G06F 1/28 Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00022 using wireless data transmission
• CPC Class Codes: H02J 7/007192 in response to temperature
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage
• CPC Class Codes: H04Q 2209/10 using a centralized architecture
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y04S 10/30 State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge

Abstract

A storage battery monitoring method including: receiving, via a communication network, identification information indicating a storage battery system and characteristic data indicating a state of at least one storage battery; determining, based on the received characteristic data, a deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database and indicating deterioration tendencies of other storage batteries; generating, via the communication network, control data for ameliorating a deterioration state of the at least one storage battery at a predetermined point in time according to the corresponding deterioration model; transmitting the generated control data to the storage battery system; and controlling, in the storage battery system, the at least one storage battery based on the transmitted control data.

Claims

1. A storage battery monitoring method for use in a storage battery monitoring system including (i) a storage battery system including at least one storage battery that charges or discharges power and a control unit that controls the at least one storage battery, and (ii) a server that communicates with the storage battery system via a communication network, the method comprising:

receiving, via the communication network, identification information indicating the storage battery system and characteristic data indicating a state of the at least one storage battery;

determining, based on the received characteristic data, a deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database and indicating deterioration tendencies of other storage batteries;

generating, via the communication network, control data for ameliorating a deterioration state of the at least one storage battery at a predetermined point in time according to the corresponding deterioration model;

transmitting the generated control data to the storage battery system; and

controlling, in the storage battery system, the at least one storage battery based on the transmitted control data.

2. The storage battery monitoring method according to claim 1,

wherein the characteristic data includes at least one of output power, a voltage, a temperature, and a state of charge of the at least one storage battery.

3. The storage battery monitoring method according to claim 1, comprising

transmitting control data for decreasing an amount of charge to be returned to the at least one storage battery when charging, in the case where the deterioration model corresponding to the at least one storage battery has a deterioration level less than a predetermined threshold value.

4. The storage battery monitoring method according to claim 1, comprising

transmitting control data for decreasing output power of the at least one storage battery, in the case where the deterioration model corresponding to the at least one storage battery has a deterioration level less than a predetermined threshold value.

5. The storage battery monitoring method according to claim 1, comprising

transmitting control data for deactivating the at least one storage battery, in the case where the deterioration model corresponding to the at least one storage battery has a deterioration level less than a predetermined threshold value.

6. The storage battery monitoring method according to claim 1, comprising

registering, into the database, the deterioration model corresponding to the at least one storage battery, in the case where the deterioration models managed in the database include no deterioration model similar to the deterioration model corresponding to the at least one storage battery.

7. The storage battery monitoring method according to claim 1, comprising

determining, based on the received characteristic data of the at least one storage battery, whether or not the at least one storage battery is in an abnormal state, using error models managed in the database and indicating characteristics when the other storage batteries are abnormal, and notifying a predetermined notification unit when the at least one storage battery is in the abnormal state.

8. The storage battery monitoring method according to claim 1,

wherein the storage battery system includes a plurality of the storage batteries,

the method comprising transmitting the control data about each of the storage batteries.

9. The storage battery monitoring method according to claim 8, comprising

transmitting control data for increasing output power for a less-deteriorated storage battery among the storage batteries and decreasing output power for a more-deteriorated storage battery among the storage batteries.

10. The storage battery monitoring method according to claim 1,

wherein a plurality of the storage battery systems are connected,

the method comprising:

generating the control data about each of the storage battery systems; and

transmitting the control data to each of the storage battery systems.

11. A storage battery monitoring system comprising (i) a storage battery system including at least one storage battery that charges or discharges power and a control unit that controls the at least one storage battery, and (ii) a server that communicates with the storage battery system via a communication network,

wherein the server:

receives, via the communication network, identification information indicating the storage battery system and characteristic data indicating a state of the at least one storage battery,

determines, based on the received characteristic data, a deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database and indicating deterioration tendencies of other storage batteries;

generates, via the communication network, control data for ameliorating a deterioration state of the at least one storage battery at a predetermined point in time according to the corresponding deterioration model; and

transmits the generated control data to the storage battery system, and

the storage battery system controls the at least one storage battery based on the transmitted control data.

12. A storage battery system for use in the storage battery monitoring system according to claim 11.

13. A storage battery system comprising:

at least one storage battery that charges or discharges power;

a monitoring unit configured to monitor a state of the at least one storage battery; and

a control unit configured to (i) transmit, to a storage battery monitoring device connected via a communication network, identification information indicating the storage battery system and characteristic data indicating the state of the at least one storage battery, (ii) receive, from the storage battery monitoring device via the communication network, control data for ameliorating a deterioration state of the at least one storage battery at a predetermined point in time according to a deterioration model corresponding to the at least one storage battery, and (iii) control the at least one storage battery based on the received control data,

wherein the storage battery monitoring device determines, based on the characteristic data, the deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database and indicating deterioration tendencies of other storage batteries, and

the control of the at least one storage battery based on the control data is control for decreasing a voltage applied to the at least one storage battery when the at least storage battery is charging or decreasing a current passing through the at least one storage battery when the at least one storage battery discharging.