JP2002343444A - Status-monitoring system for lead-acid battery - Google Patents
Status-monitoring system for lead-acid batteryInfo
- Publication number
- JP2002343444A JP2002343444A JP2001140471A JP2001140471A JP2002343444A JP 2002343444 A JP2002343444 A JP 2002343444A JP 2001140471 A JP2001140471 A JP 2001140471A JP 2001140471 A JP2001140471 A JP 2001140471A JP 2002343444 A JP2002343444 A JP 2002343444A
- Authority
- JP
- Japan
- Prior art keywords
- internal resistance
- lead
- average value
- storage battery
- change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
- G01R31/379—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator for lead-acid batteries
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鉛蓄電池の寿命等
の状態を監視する鉛蓄電池の状態監視システムに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead-acid battery condition monitoring system for monitoring the condition of a lead-acid battery, such as its life.
【０００２】[0002]
【従来の技術】従来、鉛蓄電池は、非常時用電源として
使用される場合がある。この様な用途に使用される鉛蓄
電池は据置用鉛蓄電池と呼ばれ、負荷に対し商用電源と
並列接続され、通常は商用電源により浮動充電と呼ばれ
る小さな電流で充電され、その鉛蓄電池の容量を１００
％の状態に維持され、商用電源に停電等の異常事態が発
生した時に該商用電源に代わり鉛蓄電池から負荷へ電力
を供給するものである。2. Description of the Related Art Conventionally, a lead storage battery is sometimes used as an emergency power supply. Lead-acid batteries used in such applications are called stationary lead-acid batteries, which are connected in parallel with a commercial power supply to a load, and are usually charged by a commercial power supply with a small current called floating charging, and the capacity of the lead-acid battery is reduced. 100
%, And power is supplied from a lead storage battery to a load instead of the commercial power supply when an abnormal situation such as a power failure occurs in the commercial power supply.
【０００３】この様な据置用鉛蓄電池は多数の鉛蓄電池
を直列接続して用いられる。そしてこの様な鉛蓄電池
は、絶えず浮動充電を行っているとは言え或いは行って
いるが為に、鉛蓄電池は除除に劣化しやがては負荷への
充分な電力を供給出来ない状態に至ることは知られてい
る。その為、商用電源の異常時に実際に充分な電力を供
給し得るか否か、即ち鉛蓄電池の容量（残存容量）が所
定量あるか否かを把握する為に以下の方法が採られてい
る。 鉛蓄電池の電池電圧の変化を監視し、その変化により
残存容量を推定する方法。 鉛蓄電池を放電し残存容量を推定する方法。 鉛蓄電池を短時間急放電してその電圧の低下度合いか
ら残存容量を推定する方法。 鉛蓄電池は劣化に伴い除除に内部抵抗が上昇するた
め、その値から残存容量を推定する方法。 これらの方法により、鉛蓄電池の状態を監視し、残存容
量が所定の値以下になった時を寿命と判断し鉛蓄電池を
交換している。[0003] Such a stationary lead-acid battery is used by connecting a large number of lead-acid batteries in series. And although such lead-acid batteries are or can be said to be constantly performing floating charging, the lead-acid batteries will eventually deteriorate and eventually become unable to supply sufficient power to the load. Is known. For this reason, the following method is employed to determine whether sufficient power can be actually supplied when the commercial power supply is abnormal, that is, whether the capacity (remaining capacity) of the lead storage battery is a predetermined amount. . A method of monitoring the change in the battery voltage of a lead storage battery and estimating the remaining capacity based on the change. A method for estimating the remaining capacity by discharging a lead storage battery. A method of estimating the remaining capacity from the degree of decrease in the voltage of a lead storage battery by rapidly discharging it for a short time. Since the internal resistance of a lead-acid battery increases due to deterioration, the remaining capacity is estimated from the value. According to these methods, the state of the lead storage battery is monitored, and when the remaining capacity becomes equal to or less than a predetermined value, it is determined that the life is over, and the lead storage battery is replaced.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の方法では以下のような問題がある。 鉛蓄電池の電池電圧の変化を監視する方法では、電池
固有差による電圧ばらつきがあり、多数の鉛蓄電池を直
列接続して用いられる場合にはそのばらつきが合算され
るため大きくなり正確さに欠けると共に、実用上は充分
な余裕を見た監視にならざるを得ない。 鉛蓄電池を放電により残存容量を推定する方法は正確
ではあるが、放電する為の装置を備えなければならない
と共に、放電期間中に商用電源に異常が発生した場合へ
の対応が出来なくなる。 鉛蓄電池を急放電する場合も、放電する為の装置を備
えなければならない。 鉛蓄電池の内部抵抗による方法は比較的ばらつきも小
さく、また、放電する為の装置等も不要で良い方法では
あるが、鉛蓄電池の長期使用が望まれ、より正確な状態
監視が望まれている。However, the above conventional method has the following problems. In the method of monitoring the change in the battery voltage of a lead storage battery, there is a voltage variation due to a battery-specific difference, and when a large number of lead storage batteries are used in series, the variation is added up and becomes large and lacks accuracy. However, in practice, there is no choice but to monitor with sufficient margin. Although the method of estimating the remaining capacity by discharging the lead storage battery is accurate, it is necessary to provide a device for discharging the lead storage battery, and it is not possible to cope with an abnormality occurring in the commercial power supply during the discharging period. Even when the lead storage battery is suddenly discharged, a device for discharging the lead storage battery must be provided. Although the method based on the internal resistance of the lead-acid battery has relatively small variation and does not require a device for discharging, it is a good method, but long-term use of the lead-acid battery is desired, and more accurate state monitoring is desired. .
【０００５】[0005]
【課題を解決するための手段】本発明は、上記課題を解
決する為に、請求項１に記載の発明ではある短期間の内
部抵抗の平均値とその後に続くある短期間の内部抵抗の
平均値を比較し、その平均値間の変化率が所定の値以上
に増加した場合に警報等を発する鉛蓄電池の交換時期を
知らせるものであり、請求項２に記載の発明では、短期
間の内部抵抗の平均値の推移を時系列的に監視し、この
経時変化を基に内部抵抗値の平均値と期間の関係を示す
近似式を求め、それにより、内部抵抗の平均値の変化率
が所定の値以上になる時期を予測し、その予測した時期
を鉛蓄電池の交換時期として表示するものである。According to the present invention, in order to solve the above-mentioned problems, according to the first aspect of the present invention, an average value of a short-term internal resistance and an average value of a subsequent short-term internal resistance are defined. The value is compared, and when the rate of change between the average values increases to a predetermined value or more, a warning is issued when the lead storage battery needs to be replaced. The change of the average value of the resistance is monitored in a time series, and an approximate expression indicating a relationship between the average value of the internal resistance value and the period is obtained based on the change over time. Is predicted, and the predicted time is displayed as the lead storage battery replacement time.
【０００６】更に請求項３に記載の発明は、多数の鉛蓄
電池が直列接続して使用される場合に、個々の鉛蓄電池
の内部抵抗を測定することで、鉛蓄電池の状態を監視す
るものである。Further, according to a third aspect of the present invention, when a large number of lead-acid batteries are used in series, the state of each lead-acid battery is monitored by measuring the internal resistance of each lead-acid battery. is there.
【０００７】[0007]
【発明の実施の形態】小さな充電電流で浮動充電中の据
置用鉛蓄電池に交流電流を印加し、その印加電流と応答
電圧から内部抵抗を求めることが出来る。この内部抵抗
は鉛蓄電池の充電状態、即ち残存容量の変化に伴い変化
する。即ち、残存容量の低下と共に内部抵抗は増加す
る。従って、鉛蓄電池の内部抵抗を測定することにより
鉛蓄電池の残存容量を監視することが出来る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An alternating current can be applied to a stationary lead-acid battery during floating charging with a small charging current, and the internal resistance can be determined from the applied current and the response voltage. This internal resistance changes with a change in the state of charge of the lead storage battery, that is, a change in the remaining capacity. That is, the internal resistance increases as the remaining capacity decreases. Therefore, the remaining capacity of the lead storage battery can be monitored by measuring the internal resistance of the lead storage battery.
【０００８】しかしながら実際に所定の公称容量の鉛蓄
電池の内部抵抗と残存容量の関係を調べ、所定の残存容
量、例えば公称容量の８０％迄低下した時点を最早負荷
の電力を賄うことが出来ない所謂寿命として、その時の
内部抵抗値を用いて複数の鉛蓄電池が直列接続された鉛
蓄電池の状態を監視し、所定の内部抵抗値になった時の
これら複数の鉛蓄電池の残存容量を実際放電して調べて
見ると、未だ８０％に達してないものや、８０％を大き
く下回っているもの等があることが分かった。その差を
期間に換算すると極端な場合は１年にも及ぶ事が分かっ
た。However, the relationship between the internal resistance and the remaining capacity of a lead-acid battery having a predetermined nominal capacity is actually investigated, and the power of the load can no longer be supplied when the remaining capacity drops to a predetermined remaining capacity, for example, 80% of the nominal capacity. As a so-called service life, the state of the lead storage battery in which a plurality of lead storage batteries are connected in series is monitored using the internal resistance value at that time, and the remaining capacity of the plurality of lead storage batteries when the predetermined internal resistance value is reached is actually discharged. Inspection revealed that some of them had not reached 80% yet, and some had significantly less than 80%. When the difference was converted to a period, it was found that in extreme cases, it could take up to a year.
【０００９】そこで本発明者らは、内部抵抗の変化率、
即ち、直前の内部抵抗値との比較において、どれだけ内
部抵抗値が変化したかを見ることで、上記ばらつきを小
さく出来ることを見出したものである。Therefore, the inventors of the present invention have determined the rate of change of the internal resistance,
That is, it has been found that the above-described variation can be reduced by observing how much the internal resistance value has changed in comparison with the immediately preceding internal resistance value.
【００１０】しかし、実際に内部抵抗の測定値は浮動充
電の電源からのノイズや浮動充電の変化により変化する
為、その都度の変化率を求めるとそのばらつきの為、想
像も出来ない位早期に所定の変化率を呈する場合がある
ので、週単位或いは月単位の内部抵抗の平均値を求め、
これにより変化率を見る必要があることが分かった。However, since the measured value of the internal resistance actually changes due to the noise from the power supply of the floating charge or the change of the floating charge, the rate of change at each time is obtained. Since there may be a predetermined change rate, the average value of the internal resistance on a weekly or monthly basis is obtained,
This proved that it was necessary to see the rate of change.
【００１１】表１に、寿命末期に近い複数の密閉形鉛蓄
電池を用い、半年間の平均の内部抵抗測定値と変化率お
よび残存容量を調査した結果を示す。Table 1 shows the results of an investigation of the average internal resistance measured value, the rate of change, and the remaining capacity for a half year using a plurality of sealed lead-acid batteries near the end of life.
【００１２】[0012]
【表１】 [Table 1]
【００１３】表中、内部抵抗値は、経験上知られている
鉛蓄電池の初期設計内部抵抗値を１００とした相対値で
示した。いずれも変化率が１１０％以上で残存容量が８
０％以下となること確認した。尚、残存容量が１００％
を超えるのは、公称容量との比率で記載した為で、通常
実容量が公称容量より大きく設計し製造される為であ
る。In the table, the internal resistance is shown as a relative value with the initial design internal resistance of a lead storage battery known from experience as 100. In all cases, the rate of change is 110% or more and the remaining capacity is 8
It was confirmed that it was 0% or less. The remaining capacity is 100%
The reason for exceeding is that the actual capacity is designed and manufactured so that it is usually larger than the nominal capacity.
【００１４】又、これら据置用鉛蓄電池は、商用電源異
常時に負荷へ電力を供給するものであるので、負荷への
充分な電力量を供給し得る残存容量が要求され、それを
下回った場合は、これを寿命として交換する必要があ
る。この場合、上記の如く内部抵抗値の変化率による鉛
蓄電池の状態監視のみでは、寿命に至った時期は確認し
得るも、寿命に何時なるのかと言った予想はつかない。
そこで、本発明者らは、ある期間の内部抵抗の平均値を
時系列的に記憶し、この経時変化から内部抵抗の平均値
と期間の関係を示す近似式を求め、それより内部抵抗の
変化率が所定の値以上になる時期を予測し、その予測し
た時期を鉛蓄電池の交換時期として表示する様にしたも
のである。Further, since these stationary lead-acid batteries supply electric power to the load in the event of a commercial power failure, a remaining capacity that can supply a sufficient amount of electric power to the load is required. It is necessary to replace this as a lifetime. In this case, as described above, only by monitoring the state of the lead storage battery based on the rate of change of the internal resistance value, it is possible to confirm when the life has expired, but it is not possible to predict when the life will end.
Therefore, the present inventors store the average value of the internal resistance in a certain period in a time-series manner, obtain an approximate expression indicating the relationship between the average value of the internal resistance and the period from the change over time, and calculate the change in the internal resistance based on the expression. The timing at which the rate becomes equal to or more than a predetermined value is predicted, and the predicted timing is displayed as the lead battery replacement time.
【００１５】具体的に説明すれば、図１は密閉形鉛蓄電
池の６年目以後８年目迄の内部抵抗の半年毎の平均値の
経時変化である。縦軸は半年間の内部抵抗の平均値を横
軸は鉛蓄電池の使用経過年数を表す。尚、内部抵抗の平
均値は、鉛蓄電池の初期設計内部抵抗値を１００として
その相対値で表した。この各プロットされた点に最も近
似される式として式１の３次関数の式が得られた。More specifically, FIG. 1 shows the change over time of the average value of the internal resistance of a sealed lead-acid battery every six months from the sixth year to the eighth year. The vertical axis represents the average value of the internal resistance for six months, and the horizontal axis represents the number of years of use of the lead-acid battery. The average value of the internal resistance was expressed as a relative value with the initial design internal resistance value of the lead storage battery being 100. The expression of the cubic function of Expression 1 was obtained as the expression that is most approximated to each plotted point.
【００１６】[0016]
【式１】 (Equation 1)
【００１７】ｘは鉛蓄電池の使用経過年数、ｙは内部抵
抗の平均値を表す。実験の結果、この近似式は２次乃至
４次関数の式が良いことが確認された。X represents the number of years of use of the lead storage battery, and y represents the average value of the internal resistance. As a result of the experiment, it was confirmed that this approximation formula is preferably a quadratic to quartic function.
【００１８】この近似式を基に、変化率が１１０％／６
ケ月を越える時期、即ち交換時期をａとし、その６ケ月
前の値を（ａ−0.5）とし、それぞれｘに代入して式を
求めると次の式２と式３の式になる。Based on this approximate expression, the rate of change is 110% / 6
The time beyond the month, that is, the replacement time is a, and the value six months earlier is (a-0.5), and the values are substituted into x to obtain the formulas, and the following formulas 2 and 3 are obtained.
【００１９】[0019]
【式２】 (Equation 2)
【００２０】[0020]
【式３】 (Equation 3)
【００２１】そして、この２つの式の比が１．１、即
ち、ｙａ／ｙｂ＝１．１となるａを求めると、ａ＝８．
１７となる。従って鉛蓄電池の使用を開始してから８．
１７年後に蓄電池を交換する必要があること予測し得
る。事実、この鉛蓄電池は８年目は８５％の残存容量を
維持していたが、８．５年後には残存容量が７６％に低
下しており、上記予測の正確さが確認出来た。Then, when the ratio a of the two equations is 1.1, that is, when a / yb = 1.1 is obtained, a = 8.
It becomes 17. Therefore, after starting to use the lead storage battery, 8.
It can be predicted that the batteries will need to be replaced after 17 years. In fact, the lead storage battery maintained 85% of the remaining capacity in the eighth year, but after 8.5 years, the remaining capacity was reduced to 76%, confirming the accuracy of the prediction.
【００２２】[0022]
【実施例１】本発明の実施例を図２に示す。商用電源１
は整流・制御部２を介して負荷３に接続されると共に、
鉛蓄電池４を、負荷とは並列に接続されている。鉛蓄電
池４は満充電された密閉形鉛蓄電池を１２個直列に接続
し、直列接続された鉛蓄電池に１Ａの浮動充電電流を流
し続けた。各鉛蓄電池の正負極端子には交流電流印加線
５を接続し、そして、タイマーにより１日一回、内部抵
抗測定装置６から印加線５より各鉛蓄電池４に２０Ｈｚ
の交流電流を印加し、応答電圧及び位相差の情報を演算
装置７へ入力して内部抵抗を演算しこれを各鉛蓄電池の
電槽側面に固定したサーミスタ（図示せず）より各鉛蓄
電池の温度を計測し、これを演算部７で、予め記憶部Ｒ
ＡＭ８に記憶された温度と内部抵抗の相関関係を示す検
量線により前記測定した内部抵抗値を温度補正して、記
憶部ＲＡＭ８に時系列的に記憶した。そしてプログラム
が記憶されたＲＯＭ９により半年毎に記憶された過去半
年分の内部抵抗値を演算装置で平均して平均値を求め、
これを内部抵抗平均値として記憶部ＲＡＭ８に時系列的
に記憶した。そして、直前の半年分の内部抵抗平均値と
比較しその変化率を求めた。変化率が１１０％を超えた
場合は表示装置１０に「寿命」の表示する様にした。Embodiment 1 An embodiment of the present invention is shown in FIG. Commercial power supply 1
Is connected to the load 3 via the rectification / control unit 2 and
The lead storage battery 4 is connected in parallel with the load. As the lead storage battery 4, 12 fully charged sealed lead storage batteries were connected in series, and a 1A floating charging current was continuously supplied to the lead storage batteries connected in series. An alternating current application line 5 is connected to the positive and negative terminals of each lead-acid battery, and once a day by a timer from the internal resistance measuring device 6 to the lead-acid battery 4 from the application line 5 to 20 Hz.
, And input the information of the response voltage and the phase difference to the arithmetic unit 7 to calculate the internal resistance. The calculated internal resistance is obtained from a thermistor (not shown) fixed to the side of the battery case of each lead storage battery. The temperature is measured, and this is calculated in advance by the arithmetic unit 7 in the storage unit R.
The measured internal resistance value was temperature-corrected by a calibration curve indicating the correlation between the temperature and the internal resistance stored in the AM 8 and stored in the storage unit RAM 8 in time series. Then, the internal resistance value for the past six months stored every six months by the ROM 9 in which the program is stored is averaged by an arithmetic unit to obtain an average value.
This was stored in the storage unit RAM 8 in time series as an internal resistance average value. Then, the rate of change was obtained by comparing with the average value of the internal resistance for the immediately preceding six months. When the rate of change exceeds 110%, "life" is displayed on the display device 10.
【００２３】演算装置では、記録ＲＯＭ９に記憶させた
プログラムにより図３に示すフローチャートにより演算
する。まずタイマーをスタートさせ鉛蓄電池が浮動充電
されているか否かを見る。鉛蓄電池は、先に説明した通
り、商用電源が停電等の異常事態になった時に放電し、
負荷へ電力を供給するものである。そして、商用電源が
復旧した後は、該商用電源により充電され満充電になっ
た時再び浮動充電されるが、鉛蓄電池の放電時や充電時
は交流電流を印加せず、内部抵抗は測定しない。このよ
うにする為に、鉛蓄電池が浮動充電の時のみ定期的に交
流電流を印加する。この浮動充電の状態は鉛蓄電池の電
圧を監視することで判断した。そして、印加した交流電
流とその時の応答電圧により内部抵抗を測定しこれを記
憶部へ記憶し、次に半年が経過したかをタイマーにより
判断し、経過していなければ次回の内部抵抗の測定に備
える。半年が経過していれば、それまで記憶していた半
年分の内部抵抗値の演算して平均値を求め、これを記憶
部へ記憶し、ついで今回求めた内部抵抗の平均値と前回
求めた平均値を比較して変化率を演算し、その結果１１
０％以下ならタイマーをリセットし、次の半年の記録を
取る為再びタイマーをスタートさせる。この場合、それ
以前のデータを消去し新たなデータへ書き換えるのでは
なく、以前のデータを残し、次の半年分として新たにデ
ータを記憶した。その時、半年目、１年目の経時データ
と共に記憶する様にした。変化率が１１０％を超える場
合は寿命表示しプログラムを終了させる。尚、表示は継
続して表示するものである。The arithmetic unit performs an arithmetic operation according to the flowchart shown in FIG. First, a timer is started to check whether or not the lead storage battery is floatingly charged. As described above, the lead storage battery is discharged when the commercial power supply becomes abnormal such as a power outage,
It supplies power to the load. Then, after the commercial power is restored, when the battery is charged by the commercial power and fully charged, the battery is float-charged again, but when discharging or charging the lead storage battery, no alternating current is applied and the internal resistance is not measured. . To do so, an alternating current is applied periodically only when the lead storage battery is in floating charge. The state of the floating charge was determined by monitoring the voltage of the lead storage battery. Then, the internal resistance is measured based on the applied AC current and the response voltage at that time, and the internal resistance is stored in the storage unit. Then, it is determined by a timer whether half a year has elapsed. Prepare. If half a year has passed, the internal resistance value for the six months previously stored is calculated and the average value is calculated, this is stored in the storage unit, and then the average value of the internal resistance obtained this time and the previous value are calculated. The average value is compared to calculate the rate of change, and as a result 11
If it is 0% or less, reset the timer and restart the timer to record the next half year. In this case, instead of erasing the previous data and rewriting it with new data, the previous data is left and new data is stored for the next half year. At that time, it was stored together with the chronological data of the first half year and the half year. If the rate of change exceeds 110%, the life is displayed and the program is terminated. The display is to be continuously displayed.
【００２４】実際にこの装置を用い、密閉形鉛蓄電池４
を温度６５℃の雰囲気に置き、満充電後１Ａの小さな電
流で浮動充電し続けて加速寿命試験を実施した。一日１
回の割合で２０Ｈｚの一定周波数の交流電流を内部抵抗
測定装置６により印加し、その特の応答電圧により内部
抵抗を演算し、半月毎に半年間の内部抵抗の平均値を求
めて状態を監視した結果、約６ケ月後に寿命の表示が出
た。この蓄電池を実際に放電して残存容量を調べたとこ
ろ初期容量の８０％以下となっていた。Using this device, the sealed lead-acid battery 4 was actually used.
Was placed in an atmosphere at a temperature of 65 ° C., and after a full charge, a floating current was continuously charged with a small current of 1 A to perform an accelerated life test. One day
An alternating current of a constant frequency of 20 Hz is applied by the internal resistance measuring device 6 at a rate of the number of times, the internal resistance is calculated based on the specific response voltage, and the average value of the internal resistance for half a year is obtained every six months and the state is monitored. As a result, the display of the life was displayed after about six months. When this storage battery was actually discharged and the remaining capacity was examined, it was less than 80% of the initial capacity.
【００２５】[0025]
【実施例２】更に、本発明は、途中の変化率の推移によ
り寿命時期を予測するものである。装置は図２に記載さ
れるものと同じである。相違する点は演算装置のプログ
ラムである。図４にこの場合に記録ＲＯＭ９に記憶させ
たプログラムの演算のフローチャートを示す。開始から
半年間の内部抵抗の平均値を求め記憶する所までは上記
に場合に同じであるが、その後変化率が１０８％以上か
否かを判断し、以下なら再び内部抵抗の計測に備える
も、変化率が１０８％以上の場合は過去２年間のデー
タ、即ち、内部抵抗の平均値の時系列に伴う変化と経時
変化とから時間と内部抵抗の平均値の関係を演算し３次
関数の近似式立て、これを基に演算して内部抵抗の平均
値の変化率が１１０％を超える時期を演算し、それを寿
命、即ち蓄電池の交換時期として表示部に表示するよう
にしたものである。実際に先に示した寿命加速試験にお
いて実施した結果はほぼ満足のいくものであった。[Embodiment 2] Further, the present invention predicts the life time based on the change of the change rate in the middle. The device is the same as that described in FIG. The difference is the program of the arithmetic unit. FIG. 4 shows a flowchart of the calculation of the program stored in the recording ROM 9 in this case. The same applies to the above case up to the point where the average value of the internal resistance for six months from the start is stored, but thereafter, it is determined whether or not the rate of change is equal to or more than 108%. When the rate of change is 108% or more, the relationship between the time and the average value of the internal resistance is calculated from the data of the past two years, that is, the change with the time series of the average value of the internal resistance and the change with time. An approximate formula is calculated based on the formula, and the time when the rate of change of the average value of the internal resistance exceeds 110% is calculated, and the calculated time is displayed on the display unit as the life, that is, the replacement time of the storage battery. . Actually, the results of the life acceleration test described above were almost satisfactory.
【００２６】尚、上記実施例においては、主に内部抵抗
測定の点について説明したが、このシステムに更に電池
電圧の計測システムを付加し、その他の鉛蓄電池のシス
テムを付加させ、同時に鉛蓄電池の状態を監視し得るこ
とは勿論である。In the above embodiment, the description has been made mainly on the point of measuring the internal resistance. However, a battery voltage measuring system is further added to this system, and another lead storage battery system is added. Of course, the condition can be monitored.
【００２７】[0027]
【発明の効果】以上の通り、本発明によれば、鉛蓄電池
の状態監視システムとして鉛蓄電池の兵部抵抗の平均値
の変化率により寿命を判断するようにしたので、極めて
正確に鉛蓄電池の状態を監視し得ると共に、所定期間の
変化率の推移により鉛蓄電池の交換時期を予想し表示す
る様にしたので、鉛蓄電池の管理運用も極めて容易にな
る等の効果を奏するのである。As described above, according to the present invention, the life of the lead-acid battery is determined based on the change rate of the average value of the resistance of the lead-acid battery as a lead-acid battery state monitoring system, so that the state of the lead-acid battery can be extremely accurately determined. Is monitored and the replacement time of the lead-acid battery is predicted and displayed according to the change in the rate of change of the predetermined period, so that the management operation of the lead-acid battery becomes extremely easy.
【図１】 内部抵抗の平均値の経時変化と近似曲線図FIG. 1 is a graph showing a change with time of an average value of internal resistance and an approximate curve.
【図２】 本発明一実施例の説明図FIG. 2 is an explanatory view of one embodiment of the present invention.
【図３】 本発明一実施例のチャート図FIG. 3 is a chart diagram of an embodiment of the present invention.
【図４】 他の実施例のチャート図FIG. 4 is a chart diagram of another embodiment.
１…商用電源 ２…整流・制御部 ３…負荷 ４…鉛蓄電池 ６…内部抵抗測定装置 ７…演算装置 １０…表示部 DESCRIPTION OF SYMBOLS 1 ... Commercial power supply 2 ... Rectification / control part 3 ... Load 4 ... Lead storage battery 6 ... Internal resistance measuring device 7 ... Calculator 10 ... Display part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡壁 雄一 栃木県今市市荊沢字上原597 古河電池株 式会社今市事業所内 (72)発明者 高橋 清 栃木県今市市荊沢字上原597 古河電池株 式会社今市事業所内 Ｆターム(参考） 2G016 CB06 CB12 CC01 CC03 CC04 CC06 CC10 CC13 CC14 CC27 CC28 CE00 CF06 5G003 AA01 BA01 DA06 DA18 EA08 GC05 5H030 AA00 AS03 FF41 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuichi Watanabe 597, Uehara, Jingzawa, Imaichi, Tochigi Furukawa Battery Co., Ltd. (72) Inventor Kiyoshi Takahashi 597, Uehara, Jingzawa, Imaichi, Tochigi Furukawa 2G016 CB06 CB12 CC01 CC03 CC04 CC06 CC10 CC13 CC14 CC27 CC28 CE00 CF06 5G003 AA01 BA01 DA06 DA18 EA08 GC05 5H030 AA00 AS03 FF41
Claims (3)
該測定した内部抵抗を記憶し、該記憶した内部抵抗の一
定期間毎の平均値を求め、この内部抵抗の一定期間毎の
平均値をその直前の一定期間の平均値と比較する演算装
置と、該比較により平均値の変化率が所定の値以上に増
加した場合に警報または表示する装置とを備える鉛蓄電
池の状態監視システム。An apparatus for measuring an internal resistance of a lead storage battery,
An arithmetic device that stores the measured internal resistance, obtains an average value of the stored internal resistance for each fixed period, and compares the average value of the internal resistance for each fixed period with the average value of the immediately preceding fixed period; A lead-acid battery state monitoring system, comprising: a device for alarming or displaying when the rate of change of the average value increases to a predetermined value or more by the comparison.
該測定した内部抵抗を記憶し、該記憶した内部抵抗の一
定期間毎の平均値を求める、この内部抵抗の一定期間毎
の平均値を記憶し、一定期間毎の内部抵抗の経時変化状
態に基づき近似式を求め、この近似式から一定期間毎の
内部抵抗の平均値の変化率が所定の値以上になる時期を
予測する演算装置と、該予測した時期を鉛蓄電池の交換
時期として表示する装置を備える鉛蓄電池の状態監視シ
ステム。2. An apparatus for measuring an internal resistance of a lead storage battery,
The measured internal resistance is stored, and the average value of the stored internal resistance is obtained for each fixed period. The average value of this internal resistance is stored for each fixed period, and based on the time-dependent change state of the internal resistance for each fixed period. An arithmetic unit for obtaining an approximate expression and predicting a time at which the rate of change of the average value of the internal resistance every predetermined period becomes equal to or more than a predetermined value, and an apparatus for displaying the predicted time as a replacement time of the lead storage battery A state monitoring system for a lead storage battery comprising:
対して行うことを特徴とする請求項１および請求項２に
記載の鉛蓄電池の状態監視システム。3. The lead-acid battery status monitoring system according to claim 1, wherein the status of the lead-acid battery is monitored for each lead-acid battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001140471A JP4353653B2 (en) | 2001-05-10 | 2001-05-10 | Lead storage battery condition monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001140471A JP4353653B2 (en) | 2001-05-10 | 2001-05-10 | Lead storage battery condition monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002343444A true JP2002343444A (en) | 2002-11-29 |
| JP4353653B2 JP4353653B2 (en) | 2009-10-28 |
Family
ID=18987075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001140471A Expired - Fee Related JP4353653B2 (en) | 2001-05-10 | 2001-05-10 | Lead storage battery condition monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4353653B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271583A (en) * | 2006-03-31 | 2007-10-18 | Ntt Facilities Inc | Storage battery management device |
| US7733063B2 (en) | 2006-02-24 | 2010-06-08 | Denso Corporation | Apparatus for calculating quantity indicating charged state of on-vehicle battery |
| JP2010127880A (en) * | 2008-12-01 | 2010-06-10 | Furukawa Battery Co Ltd:The | Exchange timing determining device of cell in packed battery |
| US7805264B2 (en) | 2007-03-02 | 2010-09-28 | Nippon Soken, Inc. | Method of calculating internal resistance of secondary battery for vehicle |
| JP2013179051A (en) * | 2011-08-22 | 2013-09-09 | Nec Corp | Secondary battery state notification system, secondary battery state notification method, and secondary battery state notification program |
| US8536872B2 (en) | 2007-11-06 | 2013-09-17 | Nippon Soken, Inc. | Apparatus for estimating charged state of on-vehicle battery |
| JP2013253940A (en) * | 2012-06-08 | 2013-12-19 | Gs Yuasa Corp | Life estimating device and life estimating method for electricity storage element, and electricity storage system |
| WO2015037184A1 (en) * | 2013-09-11 | 2015-03-19 | 株式会社Ｇｓユアサ | Power storage element lifespan estimation device and lifespan estimation method and power storage system |
| JP2016109639A (en) * | 2014-12-10 | 2016-06-20 | 株式会社デンソー | Deterioration diagnostic device of lead battery |
| US9547046B2 (en) | 2012-11-30 | 2017-01-17 | Gs Yuasa International Ltd. | Performance deterioration detecting apparatus and performance deterioration detecting method for energy storage device, and energy storage system |
| US9581653B2 (en) | 2012-11-30 | 2017-02-28 | Gs Yuasa International Ltd. | Post-deterioration performance estimating apparatus and post-deterioration performance estimating method for energy storage device, and energy storage system |
| JP2018072346A (en) * | 2017-11-14 | 2018-05-10 | 株式会社東芝 | Battery state estimation apparatus of secondary battery |
| WO2018190082A1 (en) * | 2017-04-12 | 2018-10-18 | 日立化成株式会社 | Cell service life diagnostic device and cell service life diagnostic method |
| JP2022042079A (en) * | 2020-09-02 | 2022-03-14 | トヨタ自動車株式会社 | Evaluation method of secondary battery |
-
2001
- 2001-05-10 JP JP2001140471A patent/JP4353653B2/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7733063B2 (en) | 2006-02-24 | 2010-06-08 | Denso Corporation | Apparatus for calculating quantity indicating charged state of on-vehicle battery |
| DE102007009041B4 (en) * | 2006-02-24 | 2013-06-13 | Denso Corporation | Apparatus for calculating a quantity indicative of the state of charge of a vehicle battery |
| JP2007271583A (en) * | 2006-03-31 | 2007-10-18 | Ntt Facilities Inc | Storage battery management device |
| US7805264B2 (en) | 2007-03-02 | 2010-09-28 | Nippon Soken, Inc. | Method of calculating internal resistance of secondary battery for vehicle |
| US8536872B2 (en) | 2007-11-06 | 2013-09-17 | Nippon Soken, Inc. | Apparatus for estimating charged state of on-vehicle battery |
| JP2010127880A (en) * | 2008-12-01 | 2010-06-10 | Furukawa Battery Co Ltd:The | Exchange timing determining device of cell in packed battery |
| JP2013179051A (en) * | 2011-08-22 | 2013-09-09 | Nec Corp | Secondary battery state notification system, secondary battery state notification method, and secondary battery state notification program |
| JP2013253940A (en) * | 2012-06-08 | 2013-12-19 | Gs Yuasa Corp | Life estimating device and life estimating method for electricity storage element, and electricity storage system |
| US9581653B2 (en) | 2012-11-30 | 2017-02-28 | Gs Yuasa International Ltd. | Post-deterioration performance estimating apparatus and post-deterioration performance estimating method for energy storage device, and energy storage system |
| US9547046B2 (en) | 2012-11-30 | 2017-01-17 | Gs Yuasa International Ltd. | Performance deterioration detecting apparatus and performance deterioration detecting method for energy storage device, and energy storage system |
| US9864017B2 (en) | 2012-11-30 | 2018-01-09 | Gs Yuasa International Ltd. | Performance deterioration detecting apparatus and performance deterioration detecting method for energy storage device, and energy storage system |
| US10371757B2 (en) | 2012-11-30 | 2019-08-06 | Gs Yuasa International Ltd. | Post-deterioration performance estimating apparatus and post-deterioration performance estimating method for energy storage device, and energy storage system |
| CN105531595A (en) * | 2013-09-11 | 2016-04-27 | 株式会社杰士汤浅国际 | Power storage element lifespan estimation device and lifespan estimation method and power storage system |
| WO2015037184A1 (en) * | 2013-09-11 | 2015-03-19 | 株式会社Ｇｓユアサ | Power storage element lifespan estimation device and lifespan estimation method and power storage system |
| JPWO2015037184A1 (en) * | 2013-09-11 | 2017-03-02 | 株式会社Ｇｓユアサ | Storage device lifetime estimation device, lifetime estimation method, and storage system |
| US9983269B2 (en) | 2013-09-11 | 2018-05-29 | Gs Yuasa International Ltd. | Apparatus and method for estimating life of energy storage device and energy storage system |
| CN105531595B (en) * | 2013-09-11 | 2018-12-04 | 株式会社杰士汤浅国际 | The end-of-life estimation device and method of charge storage element, accumulating system and integrated circuit |
| JP2016109639A (en) * | 2014-12-10 | 2016-06-20 | 株式会社デンソー | Deterioration diagnostic device of lead battery |
| JP2018179733A (en) * | 2017-04-12 | 2018-11-15 | 日立化成株式会社 | Battery life diagnostic device and battery life diagnostic method |
| WO2018190082A1 (en) * | 2017-04-12 | 2018-10-18 | 日立化成株式会社 | Cell service life diagnostic device and cell service life diagnostic method |
| CN110506214A (en) * | 2017-04-12 | 2019-11-26 | 日立化成株式会社 | The life diagnosis device of battery and the diagnosing method for service life of battery |
| JP2018072346A (en) * | 2017-11-14 | 2018-05-10 | 株式会社東芝 | Battery state estimation apparatus of secondary battery |
| JP2022042079A (en) * | 2020-09-02 | 2022-03-14 | トヨタ自動車株式会社 | Evaluation method of secondary battery |
| JP7405043B2 (en) | 2020-09-02 | 2023-12-26 | トヨタ自動車株式会社 | Evaluation method for secondary batteries |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4353653B2 (en) | 2009-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102998626B (en) | System and method for determining battery state-of-health | |
| US7459912B2 (en) | Nickel-hydride battery life determining method and life determining apparatus | |
| EP2411824B1 (en) | Battery life estimation | |
| EP1049231B1 (en) | Parameter measuring method, charge/discharge control method and apparatus and life predicting method for secondary batteries and power storage apparatus using the same | |
| US6469512B2 (en) | System and method for determining battery state-of-health | |
| CN109507604B (en) | Battery output monitoring device and battery output monitoring method | |
| JP2002343444A (en) | Status-monitoring system for lead-acid battery | |
| JP2006312528A (en) | Electric power storage device of elevator | |
| US20040036475A1 (en) | Battery monitoring | |
| JP2007311255A (en) | Battery pack status measuring device, battery pack deterioration determining method, and battery pack deterioration determining program | |
| JP4849935B2 (en) | Life estimation method and life estimation device for lead-acid battery whose initial value of internal resistance is unknown | |
| KR20180102598A (en) | Method for estimating discharge time period during high-rate battery discharge | |
| JP2004191152A (en) | Remaining life estimating device and method for secondary battery | |
| JP4011303B2 (en) | Lead storage battery condition monitoring method | |
| JP3136981B2 (en) | Storage battery life prediction method and life prediction device | |
| JP2007163145A (en) | Discharge time calculation device and discharge time calculation method | |
| JP2936441B2 (en) | Calculation method of capacity deterioration rate of storage battery and deterioration diagnosis device | |
| JP3412355B2 (en) | Nickel-based battery deterioration determination method | |
| JP4754509B2 (en) | Storage battery state measuring device, storage battery deterioration determination method, storage battery deterioration determination program | |
| JP6631845B2 (en) | Control device for lithium ion secondary battery | |
| JP3430600B2 (en) | Method and apparatus for estimating deterioration state of storage battery | |
| JP4987504B2 (en) | Storage battery state measuring device, storage battery deterioration determination method, storage battery deterioration determination program | |
| JP2007101209A (en) | Computing device of capacity of secondary battery, and secondary battery monitoring device and method | |
| JP3237229B2 (en) | Secondary battery system | |
| JP2964482B2 (en) | Method for detecting remaining capacity of lead-acid battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20010511 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040907 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040909 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070315 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080513 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080630 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081125 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090126 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090728 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090728 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120807 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120807 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130807 Year of fee payment: 4 |
|
| LAPS | Cancellation because of no payment of annual fees |