发明名称 |
METHOD FOR CALCULATING STATE OF CHARGE OF UNINTERRUPTIBLE POWER SYSTEM, BY CONSIDERING DECREASE IN CAPACITY CAUSED DUE TO WEAR-OUT OF BATTERY |
摘要 |
PURPOSE: A method is provided to reduce error of calculation by considering decrease in capacity caused due to wear-out of a battery in Peukert's equation. CONSTITUTION: A method comprises a step of inputting constants n and k of Peukert's equation into a system controller, in consideration of elapse of battery time, by consuming the constants n and k as function n=f(R) and K=f(R), and calculating state of charge of a battery. The state of charge is calculated by using a cubic equation or a quadratic equation Y=a+bX+cX¬2+dX¬3, wherein Y is the value of n, and X is the battery time. The state of charge is calculated by using an exponential function having a formula Y=axexp(X/b)+c, wherein Y is the value of k, and X is the battery time.
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申请公布号 |
KR20040110017(A) |
申请公布日期 |
2004.12.29 |
申请号 |
KR20030040391 |
申请日期 |
2003.06.20 |
申请人 |
POWER LOGICS CO., LTD. |
发明人 |
CHOI, JIN HONG;HWANG, HO SEOK;JANG, DAE GYEONG |
分类号 |
H02J7/00;(IPC1-7):H02J7/00 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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