JPH0921851A - Remaining capacity measuring device for battery of elevator emergency power supply device - Google Patents
Remaining capacity measuring device for battery of elevator emergency power supply deviceInfo
- Publication number
- JPH0921851A JPH0921851A JP7168960A JP16896095A JPH0921851A JP H0921851 A JPH0921851 A JP H0921851A JP 7168960 A JP7168960 A JP 7168960A JP 16896095 A JP16896095 A JP 16896095A JP H0921851 A JPH0921851 A JP H0921851A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- voltage
- remaining capacity
- power supply
- elevator
- 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.)
- Pending
Links
Classifications
-
- 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
- Tests Of Electric Status Of Batteries (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エレベータ非常電源装
置用バッテリの残存容量測定装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery remaining capacity measuring device for an elevator emergency power supply.
【０００２】[0002]
【従来の技術】エレベータ非常電源装置において、停
電、故障等の非常時の電源となるバッテリは、バックア
ップ電源として高い信頼性を持っていなくてはならな
い。従って定期的な保守点検でバッテリ端子電圧、外
観、液量等を点検し、バッテリが正常であることを確認
している。しかし、バッテリの残存容量を精度良く判定
する方法や装置はなく、バッテリ残存容量の判定は、保
守作業員がバッテリ端子電圧、バッテリ液比重等を測定
して総合的に判定するか、または実際にバッテリを電源
としてエレベータの非常運転を行って正常に動作するこ
とを確認していた。2. Description of the Related Art In an elevator emergency power supply system, a battery serving as a power source in an emergency such as a power failure or a failure must have high reliability as a backup power source. Therefore, the battery terminal voltage, appearance, liquid volume, etc. are checked by regular maintenance and inspection to confirm that the battery is normal. However, there is no method or device for accurately determining the remaining capacity of the battery, and the determination of the remaining capacity of the battery can be done either by a maintenance worker by measuring the battery terminal voltage, the specific gravity of the battery fluid, etc. It was confirmed that the elevator was in emergency operation using the battery as the power source and that the elevator was operating normally.
【０００３】[0003]
【発明が解決しようとする課題】ところで前者の方法で
は、測定に手間がかかる他、保守作業員の経験等により
判定結果に差が出る等の問題があり、また、後者の方法
では、動作確認時に長時間エレベータを停止する必要が
あることや、バッテリを電源としてエレベータを駆動す
るため、バッテリ残存容量が減少し、動作確認直後に停
電が発生した場合、エレベータの非常運転ができなくな
る恐れがあるという問題があった。By the way, in the former method, there is a problem that the determination result is different due to the experience of the maintenance worker in addition to the troublesome measurement, and in the latter method, the operation confirmation Sometimes it is necessary to stop the elevator for a long time, or because the battery is used as a power source to drive the elevator, the remaining capacity of the battery decreases, and if a power failure occurs immediately after checking the operation, the elevator may not be able to operate in an emergency. There was a problem.
【０００４】本発明は従来技術の上記不都合を解決する
ものであり、その目的は、現在のバッテリ残存容量でエ
レベータの非常運転が可能か否かを短時間で精度良く判
定できるエレベータ非常電源用バッテリの残存容量測定
装置を提供することにある。The present invention solves the above-mentioned disadvantages of the prior art, and an object of the present invention is to provide a battery for an elevator emergency power supply capable of accurately determining in a short time whether or not the emergency operation of the elevator is possible with the present battery remaining capacity. To provide a remaining capacity measuring device.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、交流電源、開閉器、充電器、バッテリからなり、平
常時は充電器でバッテリを充電し、停電等の非常時には
バッテリを電源として、バッテリ直流電力をエレベータ
直流回路に供給し、エレベータを非常運転する非常電源
装置、該非常電源装置の出力に接続した負荷と電流通電
手段からなるバッテリ放電回路、該バッテリ放電回路の
電流を検出する電流検出器、前記非常電源装置の出力電
圧を検出する電圧検出器、前記バッテリの温度を検出す
る温度検出器を備えたエレベータ非常電源装置用バッテ
リの残存容量測定装置において、前記電流検出信号と、
前記電圧検出信号と、前記温度検出信号を信号変換器に
入力し、前記信号変換器の出力をマイクロコンピュータ
に取り込み、前記マイクロコンピュータに予め備えた標
準特性と前記マイクロコンピュータに取り込んだ検出信
号を演算して比較判定する構成としている。In order to achieve the above object, an AC power supply, a switch, a charger, and a battery are provided. In normal times, the battery is charged by the charger, and the battery is used as a power source in an emergency such as a power failure. An emergency power supply device that supplies battery DC power to an elevator DC circuit to make an emergency operation of the elevator; a battery discharge circuit including a load connected to the output of the emergency power supply device and current-carrying means; and a current of the battery discharge circuit Current detector, voltage detector for detecting the output voltage of the emergency power supply device, in the remaining capacity measuring device of the battery for elevator emergency power supply device having a temperature detector for detecting the temperature of the battery, the current detection signal,
The voltage detection signal and the temperature detection signal are input to a signal converter, the output of the signal converter is captured by a microcomputer, and the standard characteristics pre-stored in the microcomputer and the detection signal captured by the microcomputer are calculated. Then, the comparison is made.
【０００６】[0006]
【作用】本発明のバッテリ残存容量測定装置は、バッテ
リを所定の電流で所定の時間放電したときの端子電圧
と、そのときの放電電圧の傾きと、バッテリの内部抵抗
値とを、予め求められている基準値と比較することによ
り、バッテリ残存容量を短時間で精度良く判定できる。In the battery remaining capacity measuring apparatus of the present invention, the terminal voltage when the battery is discharged with the predetermined current for the predetermined time, the slope of the discharge voltage at that time, and the internal resistance value of the battery are obtained in advance. The remaining battery capacity can be accurately determined in a short time by comparing with the reference value.
【０００７】[0007]
【実施例】実施例の説明に先立ち、バッテリの基本特性
を図２〜図４を用いて説明する。EXAMPLES Prior to the description of the examples, the basic characteristics of the battery will be described with reference to FIGS.
【０００８】まず、バッテリ残存容量による放電特性の
違いを図２に示す。図２中ａで示す曲線は残存容量が大
きいバッテリを、一方ｂは残存容量が小さいバッテリを
同一放電電流で放電したときのバッテリ放電特性であ
る。両者を比較すると残存容量が小さいバッテリは、残
存容量が大きいバッテリよりも放電開始直後の端子電圧
が低く、また、単位時間あたりの端子電圧降下が大きく
なる特徴を持つ。First, FIG. 2 shows the difference in discharge characteristics depending on the remaining capacity of the battery. A curve indicated by a in FIG. 2 is a battery discharge characteristic when a battery having a large remaining capacity is discharged, and a curve b is a battery having a small remaining capacity discharged at the same discharge current. Comparing the two, the battery with a small remaining capacity is characterized by a lower terminal voltage immediately after the start of discharge and a larger terminal voltage drop per unit time than a battery with a large remaining capacity.
【０００９】次に、周囲温度によるバッテリ放電特性の
違いを図３に示す。図３中ｃで示す曲線は同一バッテリ
を周囲温度４０℃、一方ｄは０℃において同一放電電流
で放電したときの放電特性である。両者の関係から、バ
ッテリの温度特性は、温度が高いほど端子電圧が高く、
また放電時間が長くなる、即ち容量が大きくなる特徴を
持つ。Next, FIG. 3 shows the difference in the battery discharge characteristics depending on the ambient temperature. The curve indicated by c in FIG. 3 is a discharge characteristic when the same battery is discharged at the same discharge current at an ambient temperature of 40 ° C. and 0 ° C. From the relationship between the two, the temperature characteristics of the battery, the higher the temperature, the higher the terminal voltage,
Further, it has a feature that the discharge time becomes long, that is, the capacity becomes large.
【００１０】更に、バッテリ残存容量とバッテリ内部抵
抗の関係は、図４に示すように、バッテリの残存容量が
小さいほどバッテリ内部抵抗は大きくなる特徴を持つ。Further, as shown in FIG. 4, the relationship between the battery remaining capacity and the battery internal resistance is characterized in that the battery internal resistance increases as the battery remaining capacity decreases.
【００１１】本発明は以上のようなバッテリの基本特性
を利用して残存容量を判定するものである。The present invention utilizes the basic characteristics of the battery as described above to determine the remaining capacity.
【００１２】以下、本発明のエレベータ非常電源装置用
バッテリの残存容量測定装置の実施例を図を用いて説明
する。An embodiment of a battery remaining capacity measuring apparatus for an elevator emergency power supply apparatus according to the present invention will be described below with reference to the drawings.
【００１３】図１は本発明の一実施例を示す全体構成図
で、３相交流電源５より供給される交流電力を直流電源
に変換するコンバータ６１、前記直流電力を交流電力に
再変換するインバータ６２、該インバータ６２より供給
される交流電力で回転する電動機６３、該電動機６３に
結合された綱車６４に巻きかけられた主索６５、該主索
６５の両端に連結された乗りかご６６およびつり合いお
もり６７からなるエレベータ６に接続され、平常時には
交流電源２の交流電力を開閉器３１を介して充電器３２
に供給し、該充電器３２の出力側に備えたバッテリ３３
を充電し、一方、停電あるいは故障等の非常時には前記
バッテリ３３を電力源とし、この直流電力を前記コンバ
ータ６１に供給して前記エレベータ６を非常運転するエ
レベータ非常電源装置３のバッテリ３３の残存容量を判
定するために、バッテリ残存容量測定装置１は、前記エ
レベータ非常電源装置３の前記バッテリ３３と直列に接
続され、バッテリの負荷となる負荷抵抗１１と、該負荷
抵抗１１と直列に接続され、マイコン１７からの開閉指
令に従い内蔵する接点が開閉し、電流を通電する開閉器
１２と、前記バッテリ３３と前記負荷抵抗１１、前記開
閉器１２によって形成され、前記開閉器１２の開閉で前
記バッテリ３３の放電経路を構成する放電回路４と、該
放電回路４に流れる放電電流を検出し、放電電流値に応
じた電圧信号を出力する電流検出器１３と、前記バッテ
リ３３の端子電圧を入力とし、放電により端子電圧の変
化を大きく捉え、マイコン１７への取り込みを可能とす
るバッファ１５３と、前記電流検出信号、前記温度検出
信号を各々増幅するバッファ１５２、１５１と、アナロ
グ量である前記バッファ１５１〜１５３の各信号をデジ
タル量に変換し、前記マイコン１７に取り込み可能とす
るＡ／Ｄ変換器１６と、該Ａ／Ｄ変換器１６を介して取
り込まれた周囲温度、放電電流、バッテリ端子電圧の各
信号を所定の方法で処理して前記バッテリ３３の残存容
量を判定する判定すると共に判定結果を出力する前記マ
イコン１７と、該マイコン１７からの残存容量判定結果
を表示する表示部１８から構成される。FIG. 1 is an overall configuration diagram showing an embodiment of the present invention. A converter 61 for converting AC power supplied from a three-phase AC power supply 5 into a DC power supply, and an inverter for reconverting the DC power into AC power. 62, an electric motor 63 that rotates with AC power supplied from the inverter 62, a main rope 65 wound around a sheave 64 connected to the electric motor 63, a car 66 connected to both ends of the main rope 65, and It is connected to the elevator 6 consisting of the counterweight 67, and in normal times, the AC power of the AC power supply 2 is passed through the switch 31 to the charger 32.
33 provided to the output side of the charger 32
On the other hand, in the event of an emergency such as a power failure or failure, the battery 33 is used as a power source, and this DC power is supplied to the converter 61 to operate the elevator 6 in an emergency. In order to determine, the battery residual capacity measuring device 1 is connected in series with the battery 33 of the elevator emergency power supply device 3, and is connected in series with the load resistor 11 serving as a load of the battery, and the load resistor 11. A contact formed therein is opened and closed according to an opening / closing command from the microcomputer 17, and is formed by a switch 12 that supplies a current, the battery 33, the load resistor 11, and the switch 12, and when the switch 12 is opened and closed, the battery 33 is opened. Of the discharge circuit 4 and the discharge current flowing in the discharge circuit 4, and outputs a voltage signal according to the discharge current value. The current detector 13 and the buffer 153 that receives the terminal voltage of the battery 33 as an input, captures a large change in the terminal voltage by discharging, and enables the incorporation into the microcomputer 17, the current detection signal, and the temperature detection signal. A / D converter 16 that converts the signals of the buffers 152 and 151 for amplifying, and each of the buffers 151 to 153 that are analog amounts into a digital amount, and that can be taken into the microcomputer 17, and the A / D converter. The microcomputer 17 for processing the signals of the ambient temperature, the discharge current, and the battery terminal voltage fetched via 16 by a predetermined method to judge the remaining capacity of the battery 33 and outputting the judgment result; The display unit 18 displays the remaining capacity determination result from the microcomputer 17.
【００１４】次に、周囲温度、放電電流、バッテリ端子
電圧の各信号からバッテリ残存容量を判定する考え方に
ついて説明する。Next, the concept of determining the battery remaining capacity from each signal of the ambient temperature, the discharge current and the battery terminal voltage will be described.
【００１５】予め、被測定バッテリと同形・同容量のバ
ッテリを、被測定バッテリが設置されている環境のなか
で想定されるバッテリにとって最も厳しい条件（例えば
冬場の低温時においてバッテリがエレベータの非常運転
に支障のない最低限の残存容量を備えている場合を想定
した、周囲温度０℃、バッテリ残存容量ｘ％という条
件）で放電させたときの放電特性を標準特性として設定
し、被測定バッテリの短時間放電時の端子電圧と、放電
電圧の傾きを求め、これらに温度補正を加えた後、前記
標準特性と比較して残存容量の判定を行うものである。In advance, a battery having the same shape and capacity as the battery to be measured is the most severe condition for the battery assumed in the environment in which the battery to be measured is installed (for example, the battery is an emergency operation of the elevator at low temperature in winter). Assuming that the battery has a minimum remaining capacity that does not hinder the operation, the discharge characteristics when discharged at an ambient temperature of 0 ° C. and battery remaining capacity x%) are set as standard characteristics, and The terminal voltage at the time of short-time discharge and the slope of the discharge voltage are obtained, temperature correction is applied to these, and the remaining capacity is determined by comparison with the standard characteristics.
【００１６】更に図５を用いて詳細に説明する。Further details will be described with reference to FIG.
【００１７】曲線Ｓｊは被測定バッテリを周囲温度Ｔ
（℃）（但し、Ｔ（℃）＞０（℃））において、エレベ
ータの非常運転に必要な電流Ｉ（Ａ）で実際に放電した
ときの放電特性である。被測定バッテリ放電特性Ｓｊの
放電ｔ秒目（これをＡ点とする）の端子電圧をＶａ、放
電ｔ秒目の微小時間△ｔにおける端子電圧の変化を△Ｖ
ａとすると、放電ｔ秒目の放電電圧の傾きは△Ｖａ／△
ｔで表される。The curve Sj is the ambient temperature T of the battery to be measured.
(C) (where T (° C)> 0 (° C)) is the discharge characteristic when actually discharged with the current I (A) necessary for emergency operation of the elevator. The terminal voltage at the discharge t second (this point is A) of the measured battery discharge characteristic Sj is Va, and the change of the terminal voltage at the minute time Δt at the discharge t second is ΔV.
If it is a, the slope of the discharge voltage at the discharge t second is ΔVa / Δ
It is represented by t.
【００１８】ここで実測した放電特性Ｓｊを温度補正
し、被測定バッテリを周囲温度０℃（基準温度）で放電
した場合の放電特性を推定する。これを温度補正後の放
電特性Ｓｊｍとして表す。この温度補正後の放電特性Ｓ
ｊｍより放電ｔ秒目（これをＡｍ点とする）の端子電圧
Ｖａｍと、放電電圧の傾き△Ｖａｍ／△ｔを求める。The measured discharge characteristic Sj is temperature-corrected to estimate the discharge characteristic when the measured battery is discharged at an ambient temperature of 0 ° C. (reference temperature). This is represented as the discharge characteristic Sjm after temperature correction. The discharge characteristic S after this temperature correction
From jm, the terminal voltage Vam at the discharge t second (this is the Am point) and the slope ΔVam / Δt of the discharge voltage are obtained.
【００１９】一方、被測定バッテリと同形・同容量のバ
ッテリを周囲温度０℃、バッテリ残存容量ｘ％の条件で
Ｉ（Ａ）で放電した場合に、端子電圧がエレベータの非
常運転に支障のない限界最低電圧Ｖ１に低下するまで放
電させたときの放電特性を、標準特性Ｓｓとして予め設
定しておく。標準特性Ｓｓにおいて、エレベータ非常運
転に支障がない限界最低電圧Ｖ１から、非常運転所要時
間ｔａｌｐだけ遡った時点ｔ′（これをＢ点とする）の
端子電圧をＶｂ、Ｂ点における微小時間△ｔにおける端
子電圧の変化を△Ｖｂとすると、Ｂ点における放電電圧
の傾きは△Ｖｂ／△ｔで表される。On the other hand, when a battery having the same shape and capacity as the battery to be measured is discharged at I (A) under the condition of ambient temperature of 0 ° C. and battery residual capacity of x%, the terminal voltage does not hinder the emergency operation of the elevator. The discharge characteristic at the time of discharging until it reaches the limit minimum voltage V1 is preset as the standard characteristic Ss. In the standard characteristic Ss, the terminal voltage at time t '(this is the B point), which is traced back from the limit minimum voltage V1 that does not hinder the emergency operation of the elevator by the emergency operation required time talp, is a minute time Δt at the B point. Letting ΔVb be the change in the terminal voltage at, the slope of the discharge voltage at point B is represented by ΔVb / Δt.
【００２０】ここで温度補正後の放電特性Ｓｊｍのｔ秒
目における端子電圧Ｖａｍと放電電圧の傾き△Ｖａｍ／
△ｔより、被測定バッテリを周囲温度０℃でｔ′秒間放
電したとき（これをＢｍ点とする）の端子電圧Ｖｂｍと
放電電圧の傾き△Ｖｂｍ／△ｔを推定する。Here, the slope ΔVam / of the terminal voltage Vam and the discharge voltage at the t-th second of the temperature-corrected discharge characteristic Sjm.
From Δt, the terminal voltage Vbm and the gradient ΔVbm / Δt of the discharge voltage when the measured battery is discharged at the ambient temperature of 0 ° C. for t ′ seconds (this is the Bm point) are estimated.
【００２１】被測定バッテリ温度補正後の放電特性Ｓｊ
ｍのＢｍ点における端子電圧Ｖｂｍが、標準特性Ｓｓの
Ｂ点における端子電圧Ｖｂより高く、かつ、温度補正後
の放電特性ＳｊｍのＢｍ点における放電電圧の傾き△Ｖ
ｂｍ／△ｔが、標準特性ＳｓのＢ点における放電電圧の
傾き△Ｖｂ／△ｔより小さいとき、被測定バッテリはエ
レベータの非常運転に必要な残存容量を備えているとい
える。Discharge characteristics Sj after the battery temperature to be measured is corrected
The terminal voltage Vbm at the Bm point of m is higher than the terminal voltage Vb at the B point of the standard characteristic Ss, and the slope ΔV of the discharge voltage at the Bm point of the temperature-corrected discharge characteristic Sjm.
When bm / Δt is smaller than the slope ΔVb / Δt of the discharge voltage at point B of the standard characteristic Ss, it can be said that the battery under test has the remaining capacity necessary for emergency operation of the elevator.
【００２２】すなわち、次に示す２式が同時に成り立つ
とき、被測定バッテリはエレベータの非常運転が可能と
判定する。That is, when the following two equations are satisfied at the same time, it is determined that the battery under test can perform the emergency operation of the elevator.
【００２３】 Ｖｂｍ＞Ｖｂ・・・・・・・・・・・・・・・・・・・・・・（１） △Ｖｂｍ／△ｔ＜△Ｖｂ／△ｔ・・・・・・・・・・・・・・（２） 次に、図１の残存容量測定装置において、電圧信号と電
流信号からバッテリの内部抵抗値を求め、バッテリ内部
抵抗値を上記残存容量判定の要素に付加して判定精度を
向上する方法について説明する。Vbm> Vb (1) ΔVbm / Δt <ΔVb / Δt ... (2) Next, in the state-of-charge measuring device of FIG. 1, the internal resistance value of the battery is obtained from the voltage signal and the current signal, and the internal resistance value of the battery is added to the above-mentioned element for determining the remaining capacity. A method of improving the determination accuracy will be described.
【００２４】バッテリ開路電圧をＥ、バッテリを放電電
流Ｉ（Ａ）で放電したときの放電開始直後の端子電圧を
Ｖとするとバッテリ内部抵抗値は次式で表される。When the battery open circuit voltage is E and the terminal voltage immediately after the start of discharge when the battery is discharged with the discharge current I (A) is V, the internal resistance value of the battery is expressed by the following equation.
【００２５】 ｒ＝（Ｅ−Ｖ）／Ｉ・・・・・・・・・・・・・・・・・・・（３） 図５の標準特性ＳｊのＢ点に相当する残存容量（すなわ
ちエレベータの非常運転が可能な残存容量）を備えたバ
ッテリの内部抵抗値を予め測定しておき、これをｒｂと
する。被測定バッテリの内部抵抗値ｒａを予め実験で求
めた補正式を使って温度補正した内部抵抗値をｒａｍと
すると、ｒａｍがｒｂより小さいとき、すなわち（４）
式 ｒａｍ＜ｒｂ・・・・・・・・・・・・・・・・・・・・・・（４） が成り立つとき、被測定バッテリはエレベータの非常運
転が可能な残存容量を備えているといえる。R = (EV) / I ... (3) Remaining capacity corresponding to point B of the standard characteristic Sj of FIG. 5 (that is, An internal resistance value of a battery provided with a remaining capacity capable of performing an emergency operation of the elevator) is measured in advance and is set as rb. Assuming that the internal resistance value ra of the measured battery is temperature-corrected using a correction formula obtained in advance by an experiment and ram is smaller than rb, that is, (4)
When the expression ram <rb (4) is satisfied, the battery under measurement has a remaining capacity that allows emergency operation of the elevator. Can be said.
【００２６】以上のことから、バッテリ残存容量判定の
要素として、端子電圧、放電電圧の傾きに加え、バッテ
リ内部抵抗値を付加することにより判定精度を向上する
ことができる。From the above, the determination accuracy can be improved by adding the internal resistance value of the battery in addition to the slope of the terminal voltage and the discharge voltage as an element for determining the battery remaining capacity.
【００２７】[0027]
【発明の効果】このように本発明によると、バッテリを
短時間放電させるだけで、バッテリがエレベータの非常
運転に必要な残存容量を備えているか否かを精度良く判
定することができる。As described above, according to the present invention, it is possible to accurately determine whether or not the battery has the remaining capacity necessary for the emergency operation of the elevator by simply discharging the battery for a short time.
【図１】本発明の一実施例を示す全体構成図である。FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.
【図２】バッテリ残存容量による放電特性の違いを示す
説明図である。FIG. 2 is an explanatory diagram showing a difference in discharge characteristic depending on a battery remaining capacity.
【図３】バッテリ温度を変化させた場合の放電特性を示
す説明図である。FIG. 3 is an explanatory diagram showing discharge characteristics when the battery temperature is changed.
【図４】残存容量と内部抵抗の関係を示す説明図であ
る。FIG. 4 is an explanatory diagram showing a relationship between a remaining capacity and an internal resistance.
【図５】残存容量判定の考え方を説明するための放電特
性を示す説明図である。FIG. 5 is an explanatory diagram showing discharge characteristics for explaining the concept of remaining capacity determination.
１ バッテリ残存容量測定装置 ２ 交流電源 ３ エレベータ非常電源装置 ４ 放電回路 ３１ 電源遮断装置 ３２ 充電器 ３３ バッテリ 1 Battery Remaining Capacity Measuring Device 2 AC Power Supply 3 Elevator Emergency Power Supply Device 4 Discharge Circuit 31 Power Cutoff Device 32 Charger 33 Battery
Claims (5)
らなり、平常時は充電器でバッテリを充電し、停電等の
非常時にはバッテリを電源として、バッテリ直流電力を
エレベータ直流回路に供給し、エレベータを非常運転す
る非常電源装置、該非常電源装置の出力に接続した負荷
と電流通電手段からなるバッテリ放電回路、該バッテリ
放電回路の電流を検出する電流検出器、前記非常電源装
置の出力電圧を検出する電圧検出器、前記バッテリの温
度を検出する温度検出器を備えたエレベータ非常電源装
置用バッテリの残存容量測定装置において、前記電流検
出信号と、前記電圧検出信号と、前記温度検出信号を信
号変換器に入力し、前記信号変換器の出力をマイクロコ
ンピュータに取り込み、前記マイクロコンピュータに予
め備えた標準特性と前記マイクロコンピュータに取り込
んだ検出信号を演算して比較判定したことを特徴とする
エレベータ非常電源装置用バッテリの残存容量測定装
置。1. An AC power supply, a switch, a charger, and a battery. The battery is charged by the charger in normal times, and the battery is used as a power source in an emergency such as a power failure, and the battery DC power is supplied to an elevator DC circuit. An emergency power supply device for operating an elevator in an emergency, a battery discharge circuit consisting of a load connected to the output of the emergency power supply device and a current-carrying means, a current detector for detecting the current of the battery discharge circuit, and an output voltage of the emergency power supply device. In a remaining capacity measuring device for a battery for an elevator emergency power supply equipped with a voltage detector for detecting and a temperature detector for detecting the temperature of the battery, the current detection signal, the voltage detection signal, and the temperature detection signal are signaled. Input to the converter, take the output of the signal converter into the microcomputer, and the standard characteristics that are provided in advance in the microcomputer. A remaining capacity measuring device for a battery for an elevator emergency power supply device, characterized in that a detection signal taken into the microcomputer is operated to make a comparison decision.
電する開閉器であることを特徴とする請求項１記載のエ
レベータ非常電源装置用バッテリの残存容量測定装置。2. The remaining capacity measuring device for an elevator emergency power supply battery according to claim 1, wherein the current-carrying means is a switch for supplying a current according to a predetermined command.
中のある時点における電圧信号を、同時刻に検出した温
度信号で温度補正し、温度補正後の電圧信号と予め備え
るバッテリ標準特性を比較することと、バッテリ放電中
の複数時点で測定した電圧信号から求めた単位時間あた
りの電圧降下の度合い（以下、放電電圧の傾きと呼ぶ）
を前記標準特性の放電電圧の傾きと比較判定したことを
特徴とする請求項１記載のエレベータ非常電源装置用バ
ッテリの残存容量測定装置。3. A battery voltage characteristic at a certain point in time when a battery is being discharged at a certain current for a certain period of time is temperature-compensated with a temperature signal detected at the same time, and the voltage signal after the temperature compensation is compared with a battery standard characteristic that is provided beforehand. And the degree of voltage drop per unit time obtained from the voltage signal measured at multiple points during battery discharge (hereinafter referred to as the discharge voltage slope)
2. The remaining capacity measuring device for a battery for an elevator emergency power supply device according to claim 1, wherein is determined by comparing with a slope of the discharge voltage having the standard characteristic.
容量のバッテリを所定温度かつ実際の非常運転の所要電
流で放電した場合の放電特性で、バッテリ端子電圧が実
際の非常運転に支障のない最低電圧まで低下した時点か
ら、非常運転時間分だけ遡った時点におけるバッテリ端
子電圧値と、この時点における放電電圧の傾きを表すこ
とを特徴とする請求項３記載のエレベータ非常電源装置
用バッテリの残存容量測定装置。4. The standard characteristic is a discharge characteristic when a battery of the same shape and capacity as the battery to be measured is discharged at a predetermined temperature and a required current for an actual emergency operation, and the battery terminal voltage does not interfere with the actual emergency operation. 4. The battery for an elevator emergency power supply device according to claim 3, wherein the battery terminal voltage value at a time point that is traced back by the emergency operation time from the time point when the voltage drops to the lowest voltage and the slope of the discharge voltage at this time point are represented. Remaining capacity measuring device.
テリ内部抵抗値を残存容量判定の要素に付加して、判定
精度を向上することを特徴とする請求項３記載のエレベ
ータ非常電源装置用バッテリの残存容量測定装置。5. The battery for an elevator emergency power supply device according to claim 3, wherein the battery internal resistance value obtained from the voltage signal and the current signal is added to the remaining capacity determination element to improve the determination accuracy. Remaining capacity measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7168960A JPH0921851A (en) | 1995-07-04 | 1995-07-04 | Remaining capacity measuring device for battery of elevator emergency power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7168960A JPH0921851A (en) | 1995-07-04 | 1995-07-04 | Remaining capacity measuring device for battery of elevator emergency power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0921851A true JPH0921851A (en) | 1997-01-21 |
Family
ID=15877755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7168960A Pending JPH0921851A (en) | 1995-07-04 | 1995-07-04 | Remaining capacity measuring device for battery of elevator emergency power supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0921851A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11199152A (en) * | 1998-01-09 | 1999-07-27 | Toshiba Corp | Rescue operating device of elevator in power failure time |
| WO2001037396A1 (en) * | 1999-11-17 | 2001-05-25 | Fujitec Co., Ltd. | Power supply for ac elevator |
| KR100407633B1 (en) * | 2000-02-28 | 2003-12-01 | 미쓰비시덴키 가부시키가이샤 | Controller of elevator |
| KR100407632B1 (en) * | 2000-02-28 | 2003-12-01 | 미쓰비시덴키 가부시키가이샤 | Elevator control apparatus |
| JP2008096442A (en) * | 2002-10-28 | 2008-04-24 | Matsushita Electric Ind Co Ltd | Battery management system, battery pack, and charging state measurement method therefor |
-
1995
- 1995-07-04 JP JP7168960A patent/JPH0921851A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11199152A (en) * | 1998-01-09 | 1999-07-27 | Toshiba Corp | Rescue operating device of elevator in power failure time |
| WO2001037396A1 (en) * | 1999-11-17 | 2001-05-25 | Fujitec Co., Ltd. | Power supply for ac elevator |
| KR100407633B1 (en) * | 2000-02-28 | 2003-12-01 | 미쓰비시덴키 가부시키가이샤 | Controller of elevator |
| KR100407632B1 (en) * | 2000-02-28 | 2003-12-01 | 미쓰비시덴키 가부시키가이샤 | Elevator control apparatus |
| JP2008096442A (en) * | 2002-10-28 | 2008-04-24 | Matsushita Electric Ind Co Ltd | Battery management system, battery pack, and charging state measurement method therefor |
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