Storage battery monitoring method, storage battery monitoring system, and storage battery system
First Claim
1. A storage battery monitoring method comprising:
- receiving, via a communication network, identification information indicating a storage battery system and characteristic data of at least one storage battery, the storage battery system including the at least one storage battery, the characteristic data including history information which indicates charging and discharging history of the at least one storage battery;
determining, based on the received history information, a deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database, the deterioration models each indicating a relationship between a state of health and a number of charging and discharging cycles performed by the battery as indicated by the charging and discharging history;
generating control data for suppressing deterioration of the at least one storage battery at a predetermined point in time according to the corresponding deterioration model; and
transmitting, via the communication network, the generated control data to the storage battery system to cause the storage battery system to control the at least one storage battery based on the transmitted control data,whereinthe determining of the deterioration model corresponding to the at least one storage battery includes;
obtaining a deterioration pattern of the at least one storage battery from the history information, the deterioration pattern indicating a relationship between a state of health and a number of charging and discharging of the at least one storage battery,calculating respective similarity levels between the obtained deterioration pattern of the at least one of storage battery and each of the deterioration models managed in the database, anddetermining, based on the similarity levels, the deterioration model corresponding to the at least one storage battery, andwherein calculating of respective similarity levels includes calculating a sum of residual squares of an SOH of each deterioration model every time charge and discharge are performed a number of times, anda deterioration model having the smallest sum of the residual squares is determined as a deterioration model corresponding to the at least one storage battery.
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Abstract
A storage battery monitoring method receives identification information indicating a storage battery system and characteristic data of a storage battery, the characteristic data including history information which indicates charging and discharging history of the storage battery; determines, based on the received history information, a deterioration model corresponding to the storage battery from among deterioration models managed in a database, the deterioration models each indicating a relationship between a state of health and a number of charging and discharging cycles performed by the battery as indicated by the charging and discharging history; generates control data for suppressing deterioration of the storage battery at a predetermined point in time according to the corresponding deterioration model; and transmits the generated control data to cause the storage battery system to control the storage battery.
24 Citations
23 Claims
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1. A storage battery monitoring method comprising:
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receiving, via a communication network, identification information indicating a storage battery system and characteristic data of at least one storage battery, the storage battery system including the at least one storage battery, the characteristic data including history information which indicates charging and discharging history of the at least one storage battery; determining, based on the received history information, a deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database, the deterioration models each indicating a relationship between a state of health and a number of charging and discharging cycles performed by the battery as indicated by the charging and discharging history; generating control data for suppressing deterioration of the at least one storage battery at a predetermined point in time according to the corresponding deterioration model; and transmitting, via the communication network, the generated control data to the storage battery system to cause the storage battery system to control the at least one storage battery based on the transmitted control data, wherein the determining of the deterioration model corresponding to the at least one storage battery includes; obtaining a deterioration pattern of the at least one storage battery from the history information, the deterioration pattern indicating a relationship between a state of health and a number of charging and discharging of the at least one storage battery, calculating respective similarity levels between the obtained deterioration pattern of the at least one of storage battery and each of the deterioration models managed in the database, and determining, based on the similarity levels, the deterioration model corresponding to the at least one storage battery, and wherein calculating of respective similarity levels includes calculating a sum of residual squares of an SOH of each deterioration model every time charge and discharge are performed a number of times, and a deterioration model having the smallest sum of the residual squares is determined as a deterioration model corresponding to the at least one storage battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A storage battery monitoring system comprising:
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a storage on which a database of deterioration models are recorded; and control circuitry configured to execute instruction to receive, via a communication network, identification information indicating storage battery system and characteristic data of at least one storage battery, the storage battery system including the at least one storage battery, the characteristic data including history information which indicates charging and discharging history of the at least one storage battery, determine, based on the received history information, a deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database, the deterioration models each indicating a relationship between a state of health and a number of charging and discharging cycles performed by the battery as indicated by the charging and discharging history, generate control data for suppressing deterioration of the at least one storage battery at a predetermined point in time according to the corresponding deterioration model, and transmit, via the communication network, the generated control data to the storage battery system to cause the storage battery system to control the at least one storage battery based on the transmitted control data, wherein the storage battery monitoring system further configured to; obtain a deterioration pattern of the at least one storage battery from the history information, the deterioration pattern indicating a relationship between a state of health and a number of charging and discharging of the at least one storage battery, calculate respective similarity levels between the obtained deterioration pattern of the at least one of storage battery and each of the deterioration models managed in the database, and determine, based on the similarity levels, the deterioration model corresponding to the at least one storage battery, and wherein the respective similarity levels are calculated by calculating a sum of residual squares of an SOH of each deterioration model every time charge and discharge are performed a number of times, and a deterioration model having the smallest sum of the residual squares is determined as a deterioration model corresponding to the at least one storage battery. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A storage battery system comprising:
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at least one storage battery; a sensor configured to detect a state of the at least one storage battery; and control circuitry configured to (i) transmit, to a storage battery monitoring system connected via a communication network, identification information indicating the storage battery system and characteristic data of at least one storage battery, the characteristic data including history information which indicates charging and discharging history of the at least one storage battery, (ii) receive, from the storage battery monitoring system via the communication network, control data for suppressing deterioration 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 system determines, based on the history information, the deterioration model corresponding to the at least one storage battery from among deterioration models managed in a database, the deterioration models each indicating a relationship between a state of health and a number of charging and discharging cycles performed by the battery as indicated by the charging and discharging history, and the control data are 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, wherein the storage battery monitoring system is further configured to; obtain a deterioration pattern of the at least one storage battery from the history information, the deterioration pattern indicating a relationship between a state of health and a number of charging and discharging of the at least one storage battery, calculate respective similarity levels between the obtained deterioration pattern of the at least one of storage battery and each of the deterioration models managed in the database, and determine, based on the similarity levels, the deterioration model corresponding to the at least one storage battery, and wherein the respective similarity levels are calculated by calculating a sum of residual squares of an SOH of each deterioration model every time charge and discharge are performed a number of times, and a deterioration model having the smallest sum of the residual squares is determined as a deterioration model corresponding to the at least one storage battery. - View Dependent Claims (22, 23)
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Specification