JPS6017746B2 - Elevator speed control device - Google Patents
Elevator speed control deviceInfo
- Publication number
- JPS6017746B2 JPS6017746B2 JP52083967A JP8396777A JPS6017746B2 JP S6017746 B2 JPS6017746 B2 JP S6017746B2 JP 52083967 A JP52083967 A JP 52083967A JP 8396777 A JP8396777 A JP 8396777A JP S6017746 B2 JPS6017746 B2 JP S6017746B2
- Authority
- JP
- Japan
- Prior art keywords
- car
- acceleration
- deceleration
- emergency
- speed
- 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.)
- Expired
Links
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Description
【発明の詳細な説明】
この発明はサィリスタレオナード方式のェレベータの速
度を制御する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a device for controlling the speed of a thyristor Leonard type elevator.
一般のビルでは、火災時等の避難や、消火活動に用いる
ものとして非常用ヱレベータの設置が義務付けられてい
る。このェレベータは緊急時であるから、たとえかご内
負荷が過負荷になっても走行する必要がある。In general buildings, it is mandatory to install an emergency elevator for use in evacuation and firefighting in the event of a fire. Since this elevator is used in an emergency, it is necessary to run even if the load in the car becomes overloaded.
一般のェレベー夕では、かご内奏客がおおむね定員の１
１５％になると、かごの運転を阻止する過負荷検出回路
が付いている。したがって、ェレベータ用機器、主とし
て巻上電動機及びこれを駆動する電源装置は、通常１１
５％負荷に対て耐え得るように設計される。At general celebration evenings, the number of performers in the basket is approximately 1
There is an overload detection circuit that prevents the car from operating when it reaches 15%. Therefore, elevator equipment, mainly hoisting motors and power supplies that drive them, are usually 11
Designed to withstand 5% load.
しかしながら、非常用ェレベ−外ま、通常は−般用に使
用されているので、過負荷検出は、客員の１１５％に設
定されるが、火災等で非常用として運転されるときは、
前述の過負荷検出は無効とされるので、客員の１３５％
程度まで乗客が乗り込む可能性がある。However, since the emergency elevator is normally used for general purposes, the overload detection is set to 115% of the passenger capacity, but when it is operated for emergency purposes such as a fire,
Since the above-mentioned overload detection is considered invalid, 135% of the guest
There is a possibility that some passengers will board the aircraft.
従来のワードレオナード方式の場合には、巻上電動機及
び発電機の温度上昇が若干増すが、一般的に短時間なの
で焼損するようなことはない。In the case of the conventional Ward Leonard method, the temperature rise of the hoisting motor and generator increases slightly, but it is generally short-lived and there is no risk of burnout.
しかしながら、サィリスタレオナード方式にあっては、
サィリスタはその性格上過負過耐量が小さく、温度上昇
すると破損に至る。しかし、１３５％程度の負荷までサ
ィリスタが破損しないよう定格の大きなサィリスタを用
いることは「非常用運転になる機会が少ないので非常に
不経済である。However, in the thyristor Leonard method,
Thyristors have a low overload tolerance due to their nature, and will break if the temperature rises. However, using a thyristor with a high rating so that the thyristor will not be damaged up to a load of about 135% is extremely uneconomical because there are few opportunities for emergency operation.
この発明は上記不具合を改良するもので、サィリスタの
定格を大きくすることなく、非常用運転にも使えるよう
にしたェレベータの速度制御装橿を提供することを目的
とする。The present invention aims to improve the above-mentioned problems and to provide an elevator speed control system that can be used for emergency operation without increasing the rating of the thyristor.
以下、第１図及び第２図によりこの発明の一実施例を説
明する。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
図中、１はェレベータのかご「 ２はつり合おもり、３
は主索、４は綱車、５は巻上電動機の電機子、６は同じ
く昇磁、７はサイリスタ変換装置、８は三相交流電源、
９は蓮度計用発電機、９ａは速度信号、１７は点孤制御
回路、１１は速度令発生装置、１１ａは速度指令信号、
１２は非常運転信号である。In the diagram, 1 is the elevator car, 2 is the counterweight, and 3 is the elevator car.
is the main rope, 4 is the sheave, 5 is the armature of the hoisting motor, 6 is also magnetized, 7 is the thyristor converter, 8 is the three-phase AC power supply,
9 is a power meter generator, 9a is a speed signal, 17 is an ignition control circuit, 11 is a speed command generator, 11a is a speed command signal,
12 is an emergency operation signal.
第２図中「 １２ａ，１２ｂは非常連転信号１２により
開放する非常運転リレー接点、１３ａ，１３ｂは電源、
１４ａ，１４ｂは抵抗、１５Ａはかご１の加速時間閉成
する加速リレー接点、亀５８は同じく減速時閉成する減
速リレー接点、１６は抵抗１６ａ、高利得演算増幅器１
６ｂ、コンデンサ１６ｃから構成される積分器、翼７は
抵抗、１８はコンデンサ、亀９はゼナダオード、２８ａ
，２０ｂはかご１の負週が過負荷になると開放する過負
荷検出リレー接点である。In Fig. 2, 12a and 12b are emergency operation relay contacts that are opened by the emergency continuous signal 12, 13a and 13b are power supplies,
14a and 14b are resistors, 15A is an acceleration relay contact that is closed during the acceleration time of car 1, turtle 58 is a deceleration relay contact that is also closed during deceleration, 16 is a resistor 16a, and high gain operational amplifier 1
6b, an integrator consisting of a capacitor 16c, a wing 7 a resistor, 18 a capacitor, a turtle 9 Zenadaode, 28a
, 20b are overload detection relay contacts that open when the negative week of car 1 becomes overloaded.
第２図の動作を第３図及び第４図を用いて説明する。The operation shown in FIG. 2 will be explained using FIGS. 3 and 4.
正常運転時は非常用運転リレー接点１２ａ； 亀２ｂは
閉成されいる。During normal operation, emergency operation relay contact 12a; turtle 2b is closed.
今、ェレベータの起動指令が発せられると、加速リレー
接点１５Ａが閉成し、１３ａ−１４ａ−１５ａの回路で
第３図の加速度指令値イに相当する値が積分器１６に印
加され、積分器１６はこの値を積分して速度指令信号１
１ａに変換する。点孤制御回路１４はこの速度指令信号
１１ａと速度信号９ａを照合し、サィリスタ変換装置７
を制御する。Now, when a command to start the elevator is issued, the acceleration relay contact 15A is closed, and a value corresponding to the acceleration command value A in FIG. 16 integrates this value and generates the speed command signal 1.
Convert to 1a. The ignition control circuit 14 compares this speed command signal 11a with the speed signal 9a, and converts the thyristor converter 7
control.
これにより」電機子５は加速する。This causes the armature 5 to accelerate.
やがて、かご１の速度がほぼ定格速度に近い所定値にな
ると（第３図Ｂ点）、接点１５Ａは開放され、ェレベー
タは一定速度で走行する。次いで、呼びのある階の手前
所定位置に達すると、減速リレー接点１５Ｂが閉成され
（第３図Ｃ点）、加速度指令値イは負になり電機子５は
減速する。Eventually, when the speed of the car 1 reaches a predetermined value close to the rated speed (point B in FIG. 3), the contact 15A is opened and the elevator runs at a constant speed. Next, when the vehicle reaches a predetermined position in front of the called floor, the deceleration relay contact 15B is closed (point C in FIG. 3), the acceleration command value I becomes negative, and the armature 5 decelerates.
第３図Ｄ点ではほぼ着床位置に達し、接点１５Ｂが開放
し、同時に図示しない機械式ブレーキがかけられてかご
１は停止する。At point D in FIG. 3, the car 1 almost reaches the landing position, the contact 15B opens, and at the same time a mechanical brake (not shown) is applied to stop the car 1.
第４図の電流波形ハはこの間の値を示したもので、Ａ−
８間は加速電流、Ｂ−Ｃ間は定常電流、Ｃ−Ｄ間は減速
電流を示す。The current waveform C in Fig. 4 shows the value between A-
The line between 8 and 8 indicates an accelerating current, the line between B and C indicates a steady current, and the line between C and D indicates a deceleration current.
次に、非常運転時でかご内が過負荷になると、接点１２
ａ，１２ｂ，２０ａ，２０ｂが開放されるので、加速度
指令値口は第３図のように正常時の数１０％に低下せし
められる。Next, when the inside of the car becomes overloaded during emergency operation, contact 12
Since a, 12b, 20a, and 20b are opened, the acceleration command value is reduced to several 10% of the normal value as shown in FIG.
電流波形二は１１と同様Ａ−Ｂ′，Ｂ′−Ｃ，Ｃ−Ｄ′
間がそれぞれ加速、定常、減速区間であるが、前述のよ
うに過負荷検出が無効とされるので、定常電流は正常時
よりも増している。Current waveform 2 is similar to 11, A-B', B'-C, C-D'
These periods are acceleration, steady state, and deceleration periods, respectively, but since overload detection is disabled as described above, the steady state current is higher than in normal times.
しかしながら、加速電流、減速電流が加速度指令値を下
げたことによって減少しているので、結局非常運転時の
電流の平均値は正常時と大差ない値になる。However, since the accelerating current and decelerating current are reduced by lowering the acceleration command value, the average value of the current during emergency operation ends up being a value that is not much different from that during normal operation.
試算では２４仇ｈ「ｍｉｎの場合、加速指令値イを正常
時の６０％に下げることで達成できる。このように、非
常用運転時は加速度指令値を正常時よりも下げることに
よって過負荷検出を無効にしてもサィリスタ変換装置７
の定格を大きくする必要が無い。なお、過負荷時加速度
指令値を下げることによって、若干走行時間が延びるが
、これに伴う運転能率の低下は少ない。According to a trial calculation, in the case of 24 min, this can be achieved by lowering the acceleration command value to 60% of the normal value.In this way, during emergency operation, overload detection can be achieved by lowering the acceleration command value from the normal value. Even if the thyristor conversion device 7 is disabled,
There is no need to increase the rating. Note that by lowering the overload acceleration command value, the running time is slightly extended, but the resulting drop in operating efficiency is small.
以上説明したとおりこの発明では、サィリスタ変換器に
よって制御され、正常運転時かご内が過負荷になったこ
とが検出されるとかご運転を阻止するが非常運転時には
上記阻止を行わないようにしたェレベータのおいて、非
常運転時にかごが過負荷になると、加速度または減速度
を正常時よりも低下させて運転するようにしたので、サ
ィリスタの定格を大きくすることなく非常運転を継続す
ることができる。As explained above, in this invention, the elevator is controlled by a thyristor converter and prevents car operation when an overload inside the car is detected during normal operation, but does not perform the above-mentioned prevention during emergency operation. When the car becomes overloaded during emergency operation, the car is operated with acceleration or deceleration lower than normal, so emergency operation can be continued without increasing the rating of the thyristor.
図面の簡単な説頚
第１図はこの発明によるェレベータの速度制御装置の一
実施例を示す構成図、第２図は第１図の速度指令発生装
置を示す回路図、第３図は加速度指令値波形図、第４図
は電機子電流波形図である。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing an embodiment of an elevator speed control device according to the present invention, Fig. 2 is a circuit diagram showing the speed command generation device of Fig. 1, and Fig. 3 is an acceleration command generator. Figure 4 is an armature current waveform diagram.
１…かご、５・・・巻上電動機の電機子、７・・・サィ
リスタ変換装置、１０…点弧制御回路、１１・・・速度
指令発生装置、１２ａ，１２ｂ・・・非常運転リレー接
点、１３ａ，１３ｂ・・・電源、１４ａ，１４ｂ…抵抗
、１５Ａ・・・加速リレー接点、１５８・・・減速リレ
ー接点、１６・・・積分器、１７・・・抵抗、１８・・
・コンデンサ、１９…ダイオード、２０ａ，２０ｂ・・
・過負過検出リレー接点。DESCRIPTION OF SYMBOLS 1... Car, 5... Armature of hoisting motor, 7... Thyristor conversion device, 10... Ignition control circuit, 11... Speed command generator, 12a, 12b... Emergency operation relay contact, 13a, 13b...power supply, 14a, 14b...resistance, 15A...acceleration relay contact, 158...deceleration relay contact, 16...integrator, 17...resistance, 18...
・Capacitor, 19...Diode, 20a, 20b...
・Overload detection relay contact.
なお、図中同一部分は同一符号により示す。第１図 第２図 第３図 第４図Note that the same parts in the figures are indicated by the same reference numerals. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
によりサイリスタ変換器が制御され、これによつてかご
の速度を制御し、正常運転時上記かご内が過負荷になつ
たことが検出されると上記かごの運転を阻止するが非常
運転時には上記阻止をしないようにしたものにおいて、
上記非常運転時に上記かご内の過負荷が検出されると動
作する非常時過負荷検出回路、この非常時過負荷検出回
路が動作すると上記加速度または減速度を上記正常運転
時よりも低下させる加減速度調整回路、及びこの加減速
度調整回路が動作すると上記低下した加速度または減速
度に対応する上記速度指令信号を発する速度指令発生装
置を備えたことを特徴とするエレベータの速度制御装置
。1. The thyristor converter is controlled by the speed command signal obtained from the scheduled acceleration and deceleration, thereby controlling the speed of the car, and when it is detected that the car is overloaded during normal operation. In the case where the above-mentioned operation of the car is prevented, but the above-mentioned prevention is not performed during emergency operation,
An emergency overload detection circuit that operates when an overload in the car is detected during the emergency operation; when this emergency overload detection circuit operates, the acceleration or deceleration is reduced to a value lower than that during normal operation. A speed control device for an elevator, comprising: an adjustment circuit; and a speed command generation device that generates the speed command signal corresponding to the reduced acceleration or deceleration when the acceleration/deceleration adjustment circuit operates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52083967A JPS6017746B2 (en) | 1977-07-13 | 1977-07-13 | Elevator speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52083967A JPS6017746B2 (en) | 1977-07-13 | 1977-07-13 | Elevator speed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5420549A JPS5420549A (en) | 1979-02-16 |
| JPS6017746B2 true JPS6017746B2 (en) | 1985-05-07 |
Family
ID=13817308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52083967A Expired JPS6017746B2 (en) | 1977-07-13 | 1977-07-13 | Elevator speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6017746B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0536253Y2 (en) * | 1984-06-11 | 1993-09-14 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6274890A (en) * | 1985-09-30 | 1987-04-06 | 株式会社東芝 | Controller for elevator |
| GB2221649B (en) * | 1988-08-11 | 1992-04-29 | Okura Industrial Co Ltd | Heat shrinkable composite film and packaging method using same |
| JP5845656B2 (en) * | 2011-06-28 | 2016-01-20 | フジテック株式会社 | Elevator system and control method thereof |
-
1977
- 1977-07-13 JP JP52083967A patent/JPS6017746B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0536253Y2 (en) * | 1984-06-11 | 1993-09-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5420549A (en) | 1979-02-16 |
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