JPH02170372A - Residual amount sensing method for lead storage battery - Google Patents
Residual amount sensing method for lead storage batteryInfo
- Publication number
- JPH02170372A JPH02170372A JP63324126A JP32412688A JPH02170372A JP H02170372 A JPH02170372 A JP H02170372A JP 63324126 A JP63324126 A JP 63324126A JP 32412688 A JP32412688 A JP 32412688A JP H02170372 A JPH02170372 A JP H02170372A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- time
- discharge current
- storage battery
- temp
- 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
- 238000000034 method Methods 0.000 title claims description 18
- 239000002253 acid Substances 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012806 monitoring device Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
-
- 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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3828—Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration
-
- 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]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、無停電電源や非常用電源設備などフロート或
はトリクル使用における鉛蓄電池設備の劣化状況や停電
時の放電可能な時間を検知する鉛蓄電池の残存容量検知
方法に関するものである。[Detailed Description of the Invention] Industrial Field of Application The present invention is a lead-acid battery that detects the deterioration status of lead-acid battery equipment in float or trickle use such as uninterruptible power supplies and emergency power supply equipment, and detects the dischargeable time during power outages. The present invention relates to a remaining capacity detection method.
従来の技術
従来、鉛蓄電池設備の寿命や放電時の残存容量を検知す
る方法としては、■蓄電池の電圧のみで単純にある一定
電圧に到達したかどうかにより検知する方法、■蓄電池
の電解液である硫酸の比重測定により検知する方法、■
微分内部抵抗の測定により、残存容量を検知する方法（
特公昭６３１６８５８２号公報）、■鉛蓄電池の正極板
の膨脹度合いにより検知する方法（特公昭６２−４７９
７５号公報）などがある。Conventional technology Conventionally, methods for detecting the lifespan of lead-acid battery equipment and remaining capacity at discharge include: - detecting by simply determining whether a certain voltage has been reached using only the voltage of the storage battery, and - detecting by using the electrolyte of the storage battery. A method of detecting a certain sulfuric acid by measuring its specific gravity,■
Method of detecting remaining capacity by measuring differential internal resistance (
(Japanese Patent Publication No. 63168582), ■Method of detecting by the degree of expansion of the positive electrode plate of a lead-acid battery (Japanese Patent Publication No. 62-479)
Publication No. 75).
発明が解決しようとする課題
上記従来の方法■では、鉛蓄電池の特性上、電圧と残存
容量の間に直接的な相関性はな（、放電終了近（まで蓄
電池の電圧に大きな変化がないために、放電終止電圧近
くまで残存容量を検知できずまた放電電流が変動する負
荷では、電圧変動が太き（精度も低いという問題点があ
る。Problems to be Solved by the Invention In the conventional method (■) described above, due to the characteristics of lead-acid batteries, there is no direct correlation between voltage and remaining capacity (because there is no significant change in the voltage of the storage battery until near the end of discharge). Another problem is that in loads where the remaining capacity cannot be detected until close to the discharge end voltage and the discharge current fluctuates, the voltage fluctuations are wide (and the accuracy is low).
また従来の方法■では゛鉛蓄電池の電圧や温度・放電電
流を検出するセンサー以外に比重センサーの取り付けが
必要で、近年増加傾向にあるシール形の鉛蓄電池にはこ
の方法は採用できにくい。また従来の開放形の蓄電池で
も、充電後の比重均一化に長時間を要するので実用的で
ない。In addition, the conventional method (2) requires the installation of a specific gravity sensor in addition to the sensor that detects the voltage, temperature, and discharge current of the lead-acid battery, making it difficult to apply this method to sealed lead-acid batteries, which have been on the rise in recent years. Furthermore, even conventional open storage batteries are not practical because it takes a long time to equalize the specific gravity after charging.
次に従来の方法■については、蓄電池の微分抵抗を測定
するためには、短時間ではあるが大電流を流し、その時
のＩＲドロップから求めるか、交流法による接点抵抗計
を設置しなければならないこと及び、鉛蓄電池の正極活
物質の軟化など鉛蓄電池劣化原因によっては、蓄電池の
微分抵抗が低いにもかかわらず、放電持続時間は短くな
る場合があり、検知結果の信頼性が低いという欠点があ
る。Next, regarding the conventional method (■), in order to measure the differential resistance of a storage battery, it is necessary to pass a large current for a short time and calculate it from the IR drop at that time, or to install a contact resistance meter using the AC method. In addition, depending on the cause of lead-acid battery deterioration, such as softening of the positive electrode active material of lead-acid batteries, the discharge duration may be shortened even though the differential resistance of the storage battery is low, resulting in low reliability of detection results. be.
従来の方法■については、変移量検出センサーが必要で
あることや、変移量から蓄電池の寿命時期は検知できて
も、停電時の残存容量を検知することはできないという
欠点がある。Conventional method (2) has disadvantages in that it requires a sensor to detect the amount of displacement, and although it is possible to detect the lifespan of the storage battery from the amount of displacement, it is not possible to detect the remaining capacity at the time of a power outage.
以上の他に上記４種の方法では、変動する負荷に対して
リアルタイムに残りの放電可能な時間を検知することが
出来ないという欠点がある。In addition to the above, the four methods described above have a drawback in that the remaining dischargeable time cannot be detected in real time with respect to a changing load.
本発明は上記のごとき欠点を除去するとともに、特に停
電開始直後、直ちに放電電流に応じて鉛蓄電池の残りの
放電持続時間を検知し、また負荷変動が生じた場合でも
直ちに残りの放電持続時間を検知する手段を提供するこ
とを目的としている。The present invention eliminates the above-mentioned drawbacks, and also detects the remaining discharge duration of a lead-acid battery immediately after the start of a power outage according to the discharge current. The purpose is to provide a means of detection.
課題を解決するための手段
本発明は、停電などによる蓄電池の放電時に定時間ごと
に鉛蓄電池の放電電流・電圧・電池温度の測定と、前記
電流・電圧・温度から放電電気量の積分演算を行うとと
もに、記憶装置内に格納された標準の鉛蓄電池の放電特
性データーと比較演算を繰り返すことにより、放電終止
電圧までの残存持続時間を逐次計算し得るものである。Means for Solving the Problems The present invention measures the discharge current, voltage, and battery temperature of a lead-acid battery at regular intervals when discharging the storage battery due to a power outage, etc., and performs an integral calculation of the amount of discharged electricity from the current, voltage, and temperature. At the same time, by repeating the comparison operation with the discharge characteristic data of a standard lead-acid battery stored in the storage device, the remaining duration up to the discharge end voltage can be successively calculated.
また同時に、放電初期及び中期の蓄電池電圧も標準のデ
ーターとの比較演算を逐次行い、蓄電池の劣化度を検知
し得るものである。At the same time, the storage battery voltage at the initial and middle stages of discharge is sequentially compared with standard data to detect the degree of deterioration of the storage battery.
作 用
本発明は、上記方法により、蓄電池設備に比重計や変移
量検出センサーなどを取り付けることな（、また従来よ
りも高い精度で、停電が発生後、直ちに負荷に応じた蓄
電池の残りの放電持続時間が検知できる。The present invention uses the method described above to detect the remaining discharge of the storage battery according to the load immediately after a power outage occurs, without having to attach a hydrometer or a displacement detection sensor to the storage battery equipment (and with higher accuracy than before). Duration can be detected.
実施例 以下本発明の実施例を示す。Example Examples of the present invention will be shown below.
第１図は本発明の実施例を示す蓄電池設備の監視装置の
放電持続時間検知部分のブロック図である。第１図にお
いて、（１）は制御部であるマイクロプロセッサ−（２
）は停電の検知および停電後、蓄電池の放電可能な時間
を逐次演算し、表示するためのプログラムを記憶してい
るプログラムメモリ、（３）は蓄電池の温度別の標準放
電特性データー配列を格納したメモリーである。（４）
は入出力インターフェイスで、キーボード５などの操作
機器や、蓄電池の残りの放電持続時間などを表示する表
示装置（６）や、温度データー（８）、蓄電池電圧デー
ター（９）、放電電流データー（１０）、のアナログデ
ーターをコンピューターに取り込むＡ／Ｄコンバーター
（７）などを接続する。FIG. 1 is a block diagram of a discharge duration detection portion of a storage battery equipment monitoring device showing an embodiment of the present invention. In FIG. 1, (1) is a microprocessor (2) which is a control unit.
) is a program memory that stores a program for detecting a power outage and sequentially calculating and displaying the dischargeable time of a storage battery after a power outage, and (3) stores a standard discharge characteristic data array for each storage battery temperature. It is memory. (4)
is an input/output interface that includes operating devices such as the keyboard 5, a display device (6) that displays the remaining discharge duration of the storage battery, temperature data (8), storage battery voltage data (9), and discharge current data (10). ), connect an A/D converter (7) that imports analog data into the computer.
次にこの監視装置による停電時の放電持続時間検知の演
算処理プロセスについて第２図のフローチャートにて説
明する。Next, the arithmetic processing process for detecting the discharge duration during a power outage by this monitoring device will be explained with reference to the flowchart of FIG. 2.
■、先ず監視装置が、スイッチ信号や蓄電池放電電流デ
ーター（１０）などにより停電を検知（１１）すると蓄
電池電圧（９）、温度（８）、放電電流（１０）を読み
込む（１２）。(1) First, when the monitoring device detects a power outage (11) based on a switch signal, storage battery discharge current data (10), etc., it reads the storage battery voltage (9), temperature (8), and discharge current (10) (12).
２、放電電流データー（１０）と放電開始がらの時間よ
り放電電気量を計算する（１３）。2. Calculate the amount of electricity discharged from the discharge current data (10) and the time from the start of discharge (13).
３、標準特性データー配列を格納したメモリー（３）の
中から現在の温度データー（８）に最も近い温度の放電
特性データーの放電電流（１ｏ）の前後２点のデーター
を取り出し、放電電流（１０）との交点を求め、持続時
間の演算をする（１４）。3. From the memory (3) that stores the standard characteristic data array, extract the data at two points before and after the discharge current (1o) of the discharge characteristic data at the temperature closest to the current temperature data (8), and calculate the discharge current (10 ) and calculate the duration (14).
４、（１３）で計算した放電電気、１１を分の放電時間
を差し引き残りの持続時間を計算する（１５）。4. Calculate the remaining duration by subtracting the discharge time of 11 minutes from the discharge electricity calculated in (13) (15).
５、（１５）で計算した残りの持続時間を表示装置（１
７）に表示する゛（１６’） 、。5. Display the remaining duration calculated in (15) on the display device (1
7) Displayed in ゛(16').
６、停電が回復したがどうが判断しく１８）、回復して
いない場合は（１２）の処理にもどり、おなし処理を繰
り返し、残りの放電持続時間を表示する。6. The power outage has recovered, but it is difficult to judge.18) If the power has not recovered, return to the process of (12), repeat the calming process, and display the remaining discharge duration.
７．停電が回復した場合は、正常時の監視モードにもど
る（１９）。7. When the power is restored, the system returns to the normal monitoring mode (19).
第１表は、４８Ｖ３０Ａｈの蓄電池設備を定電流負荷を
用いて疑似的に停電状態とし、第３図の放電パターンで
放電し、前記本発明の方法により、検知した残りの放電
持続時間と実際の放電持続時間の誤差を示したものであ
る。第１表において残存時間の値はそれぞれの放電電流
値で、終止電圧まで放電した場合の値である。このよう
に本発明の方法により予測検知した残りの放電持続時間
の値は実際の値との誤差が１５分以内の結果が得られた
。Table 1 shows the remaining discharge duration detected by the method of the present invention when a 48V30Ah storage battery facility is put into a pseudo power outage state using a constant current load, and discharged according to the discharge pattern shown in Figure 3. This shows the error in discharge duration. In Table 1, the remaining time values are the respective discharge current values and are the values when discharged to the final voltage. As described above, the value of the remaining discharge duration predicted and detected by the method of the present invention was found to have an error within 15 minutes from the actual value.
（広千衆台）
第１表
発明の効果
以上詳述したように、本発明の方法は停電などに際して
直ちに鉛蓄電池の残りの放電持続時間を負荷変動が生じ
てもリア・ルタイムに検知でき、残りの時間に応じて適
切な対策をとることができ、実用的に極めて有効な手段
である。(Kohsenshudai) Table 1 Effects of the Invention As detailed above, the method of the present invention can immediately detect the remaining discharge duration of a lead-acid battery in the event of a power outage, etc., in real time even if load fluctuations occur. Appropriate measures can be taken depending on the remaining time, making it an extremely effective means in practice.
第１図は本発明の方法による蓄電池設備の監視装置のブ
ロック図、第２図は残存放電時間検知の演算処理プロセ
スを示すフローチャートを示す。
（１）・・・・・・マイクロブレセッサー （３）・・
・・・・記憶装置、（７）・・・・・・Ａ／Ｄコンバー
ター代理人の氏名 弁理士 粟野重孝 ほか１名第 ｌ
ロFIG. 1 is a block diagram of a storage battery equipment monitoring device according to the method of the present invention, and FIG. 2 is a flowchart showing the arithmetic processing process for detecting remaining discharge time. (1)...Microbrecessor (3)...
...Storage device, (7)...Name of A/D converter agent Patent attorney Shigetaka Awano and 1 other person No.1
B
Claims (1)
の放電持続時間の関係を記憶装置の格納した標準放電特
性データと、放電時の鉛蓄電池の電圧・放電電流・蓄電
池温度とから放電電気量の積分演算をするとともに、前
記標準特性データーとの比較演算により、残りの放電可
能な時間の演算をすることを特徴とする鉛蓄電池の残存
容量検知方法。In advance, the amount of discharged electricity is determined from the standard discharge characteristic data stored in the storage device, which shows the relationship between the discharge current of the lead-acid battery at each temperature and the discharge duration at each final voltage, and the voltage, discharge current, and storage battery temperature of the lead-acid battery at the time of discharge. A method for detecting remaining capacity of a lead-acid battery, comprising performing an integral calculation and calculating a remaining dischargeable time by comparing the standard characteristic data with the standard characteristic data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63324126A JP2792064B2 (en) | 1988-12-22 | 1988-12-22 | Method for detecting remaining capacity of lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63324126A JP2792064B2 (en) | 1988-12-22 | 1988-12-22 | Method for detecting remaining capacity of lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02170372A true JPH02170372A (en) | 1990-07-02 |
| JP2792064B2 JP2792064B2 (en) | 1998-08-27 |
Family
ID=18162440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63324126A Expired - Lifetime JP2792064B2 (en) | 1988-12-22 | 1988-12-22 | Method for detecting remaining capacity of lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2792064B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06189471A (en) * | 1992-08-05 | 1994-07-08 | Merlin Gerin | Method for determining backup period of battery |
| JP2000350373A (en) * | 1999-06-01 | 2000-12-15 | Canon Inc | Battery drive system and battery drive system control method, electronic device and electronic device control method, battery device and battery device control method and battery unit and record medium |
| JP2003157912A (en) * | 2001-08-13 | 2003-05-30 | Hitachi Maxell Ltd | Method and device for cell capacity detection |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109264A (en) * | 1984-10-31 | 1986-05-27 | Mitsubishi Electric Corp | Storage cell monitoring device |
-
1988
- 1988-12-22 JP JP63324126A patent/JP2792064B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109264A (en) * | 1984-10-31 | 1986-05-27 | Mitsubishi Electric Corp | Storage cell monitoring device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06189471A (en) * | 1992-08-05 | 1994-07-08 | Merlin Gerin | Method for determining backup period of battery |
| JP2000350373A (en) * | 1999-06-01 | 2000-12-15 | Canon Inc | Battery drive system and battery drive system control method, electronic device and electronic device control method, battery device and battery device control method and battery unit and record medium |
| JP2003157912A (en) * | 2001-08-13 | 2003-05-30 | Hitachi Maxell Ltd | Method and device for cell capacity detection |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2792064B2 (en) | 1998-08-27 |
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