发明名称 |
Method for calculating number of healthy strings of sodium-sulfur battery and failure detection method using same |
摘要 |
A number (uo) of healthy strings of one block in a sodium-sulfur battery is determined according to expression (1), and a failure of the sodium-sulfur battery is detected on the basis of the determination of the value of the uo. This method makes it possible to properly determine a failure of the sodium-sulfur battery, which can be used to compensate for fluctuations of electric power generated by a renewable energy generating device. uo=(Qo/Qs)×us . . . (1) where Qs: used capacity of reference block; Qo: used capacity of target block; and us: number of healthy strings of reference block (us≦u). |
申请公布号 |
US8914243(B2) |
申请公布日期 |
2014.12.16 |
申请号 |
US201113278462 |
申请日期 |
2011.10.21 |
申请人 |
NGK Insulators, Ltd. |
发明人 |
Hirai Naoki;Fukuhara Motohiro |
分类号 |
G01N31/00;H01M6/42;H01M10/48;H01M10/39;G01R31/36 |
主分类号 |
G01N31/00 |
代理机构 |
Burr & Brown, PLLC |
代理人 |
Burr & Brown, PLLC |
主权项 |
1. A method for calculating the number of healthy strings of a sodium-sulfur battery, comprising:
forming a string of the sodium-sulfur battery by connecting an S number of electric cells, which is a plural number, in series; connecting a U number of the strings, which is a plural number, in parallel to form a block; connecting an N number of the blocks, which is a plural number, in series, and determining in a control unit a number uo of healthy strings of a block in a sodium-sulfur battery according to expression (1) given below:
uo=(Qs/Qo)×us (1) where Qs: used capacity of reference block; Qo: used capacity of target block; and us: number of healthy strings of reference block (us≦u). |
地址 |
Nagoya JP |