Power storage service system
First Claim
1. A power storage service system configured to control a power system using an assembled battery system including a plurality of battery cells, the plurality of battery cells including a first battery cell and a second battery cell, the power storage service system comprising:
- a residual capacity measurer configured to detect at least a residual capacity of the first battery cell and a residual capacity of the second battery cell;
a first measurer configured to calculate a self-discharge current difference between the first battery cell and the second battery cell, on the basis of a first difference between the residual capacities of the first battery cell and the second battery cell detected by the residual capacity measurer at a first point in time and a second difference between the residual capacities of the first battery cell and the second battery cell detected by the residual capacity measurer at a second point in time, the second point in time being later than the first point in time, the self-discharge current difference being a difference between a self-discharge current occurring in the first battery cell and a self-discharge current occurring in the second battery cell; and
a second measurer configured to obtain a residual time of the assembled battery using a difference between the residual capacities of the first battery cell and the second battery cell detected by the residual capacity measurer and the self-discharge current difference calculated by the first measurer.
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Accused Products
Abstract
The present invention is a power storage service system including: quantitatively grasping the time leading up to the expression of the abnormality; capable determining possible or impossible of avoiding stopping of the function of the assembled battery system. According to the invention, a maintenance operator and a maintenance service supplier of the assembled battery system have a time margin to plan a response schedule and to prepare responding, and it can reduce the cost of responding to the maintenance by reducing and optimizing the number of response.
One aspect of the present invention is a power storage service system configured to control a power system using an assembled battery system including a plurality of unit cells, the power storage service system including: a first measurer configured to measure a self-discharge current difference among the plurality of the unit cells; and a second measurer configured to obtain a residual time of the assembled battery using the self-discharge current difference measured by the first measurer.
20 Citations
19 Claims
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1. A power storage service system configured to control a power system using an assembled battery system including a plurality of battery cells, the plurality of battery cells including a first battery cell and a second battery cell, the power storage service system comprising:
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a residual capacity measurer configured to detect at least a residual capacity of the first battery cell and a residual capacity of the second battery cell; a first measurer configured to calculate a self-discharge current difference between the first battery cell and the second battery cell, on the basis of a first difference between the residual capacities of the first battery cell and the second battery cell detected by the residual capacity measurer at a first point in time and a second difference between the residual capacities of the first battery cell and the second battery cell detected by the residual capacity measurer at a second point in time, the second point in time being later than the first point in time, the self-discharge current difference being a difference between a self-discharge current occurring in the first battery cell and a self-discharge current occurring in the second battery cell; and a second measurer configured to obtain a residual time of the assembled battery using a difference between the residual capacities of the first battery cell and the second battery cell detected by the residual capacity measurer and the self-discharge current difference calculated by the first measurer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification