JPS6061478A - Controller for alternating current elevator - Google Patents
Controller for alternating current elevatorInfo
- Publication number
- JPS6061478A JPS6061478A JP58169716A JP16971683A JPS6061478A JP S6061478 A JPS6061478 A JP S6061478A JP 58169716 A JP58169716 A JP 58169716A JP 16971683 A JP16971683 A JP 16971683A JP S6061478 A JPS6061478 A JP S6061478A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- motor
- phase
- car
- low
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/0016—Control of angular speed of one shaft without controlling the prime mover
- H02P29/0022—Controlling a brake between the prime mover and the load
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Elevator Control (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔発明の技術分野〕 この発明は交流エレベータの制御装置に関し。[Detailed description of the invention] [Technical field of invention] This invention relates to a control device for an AC elevator.
特に通常定格速度で保守運転可能な２段速度モータを有
する交流エレベータの制御装置に関するものである。In particular, the present invention relates to a control device for an AC elevator having a two-speed motor capable of maintenance operation at normal rated speed.
第１図は２巻線（高速巻線、低速巻線）を持つ電動機を
用いた従来のつるべ式交流エレベータの制御装置ｆ／、
ｌ、を示すもので、図中１は巻上様、２は巻上機工の綱
車部分に巻掛けされた主索、３は主索２の一方の吊下端
に連結されたかご、４は主索２の他方の吊下端に連結さ
れた釣合おもシ、５は上記巻上機１と軸６を介して結合
した電動機で、高速巻線５ａと低速巻線５ｂを備えてい
る。７は軸６に結合した電磁ブレーキで、’ＩＥｆｆｉ
コイル７＆を偏え、この電磁コイに７ａが消勢されてい
るとき電磁ブレーキ７は制動力を発生し、電磁コイル７
ａが直流電源８により励磁されたとき電磁ブレーキ７を
解放するようになっている。９Ｒ，９８，９Ｔは三相交
流■１Σ源が接続されるエレベータ制御回路の１６．源
端子であシ、この電源端子９Ｒ，９８，９Ｔと電動機５
の高速巻線５ａとを結ぶ各ラインには高速用接触器接点
１０Ｍ、１０ｂ、１０ｃがそれぞれ直列に接続され、さ
らに電源端子９Ｒ，９Ｓ、９Ｔと電動機５の低速巻線５
ｂとを結ぶ各ラインには低速用接触器接点１１ ａ 、
１１ ｂ ｊｌｌ ｅがそれぞれ直列に接続されてい
る。また、上記電源端子９Ｒ。Figure 1 shows a conventional crane-type AC elevator control device f/, which uses an electric motor with two windings (high-speed winding and low-speed winding).
In the figure, 1 is the hoisting system, 2 is the main rope wrapped around the sheave part of the hoisting mechanism, 3 is the cage connected to one hanging end of the main rope 2, and 4 is the cage. A counterweight 5 connected to the other hanging end of the main rope 2 is an electric motor connected to the hoisting machine 1 via a shaft 6, and is provided with a high-speed winding 5a and a low-speed winding 5b. 7 is an electromagnetic brake connected to the shaft 6, 'IEffi
The electromagnetic brake 7 generates a braking force when the electromagnetic coil 7a is deenergized, and the electromagnetic coil 7
When a is excited by the DC power supply 8, the electromagnetic brake 7 is released. 9R, 98, 9T are 16. of the elevator control circuit to which the three-phase AC ■1Σ source is connected. This is the power terminal, this power terminal 9R, 98, 9T and the motor 5
High-speed contactor contacts 10M, 10b, and 10c are connected in series to each line connecting the high-speed winding 5a of
Each line connecting the line with the low speed contactor contact 11a,
11 b jll e are connected in series. Also, the power supply terminal 9R.
９８嫁接続されるＲ、Ｓ相の各ラインには上昇方向接触
器１２ａ、１２ｂがそれぞれ直列に接続され、この両接
触器１２ ａ 、 １２ ｂが閉成されたとき電動機５
を正回転方向に駆動してかご３を上昇させるものである
。１２ｃは上記上昇方向接触器１２Ｂ、１２ｂと同期し
て開閉され、上記電磁コイル７色と直流電源８とを結ぶ
回路に直列に接続された上昇方向ブレーキ接点である。Upward direction contactors 12a and 12b are connected in series to each of the R and S phase lines connected to the 98-wire connection, and when both contactors 12a and 12b are closed, the motor 5
The car 3 is raised by driving the car in the forward rotation direction. Reference numeral 12c is an upward brake contact which is opened and closed in synchronization with the upward direction contactors 12B and 12b and is connected in series to a circuit connecting the seven electromagnetic coils and the DC power source 8.
また、１３ａ。Also, 13a.
１３ｂは下降方向接触器で、それぞれの一端はＲ及びＳ
相の電源端子９ Ｒ、９８に接続され、さらに上記接触
器１３１１の他端は上記上昇方向接触器１２ｂの電動機
接続側に、そして接触器１３ｂの他端は上記上昇方向接
触器１２ｍの電動機接続側にそれぞれ接続され、この下
降方向接触器１３ａ。13b is a descending direction contactor, each one end of which is connected to R and S.
The other end of the contactor 1311 is connected to the motor connection side of the upward direction contactor 12b, and the other end of the contactor 13b is connected to the motor connection side of the upward direction contactor 12m. This downward direction contactor 13a is connected to the side, respectively.
１３ｂが閉成されたとき電動機５を逆回転方向に駆動し
てかご３を下降させるものである。１３ｃは上記下降方
向接触器ｔａａ、ｔａｂと同期して開閉され、上記上昇
方向ブレーキ接点１２ ｃと並列に接続した下降方向ブ
レーキ接点である。When 13b is closed, the electric motor 5 is driven in the reverse rotation direction to lower the car 3. 13c is a descending brake contact which is opened and closed in synchronization with the descending contactors taa and tab and connected in parallel with the ascending brake contact 12c.
上記構成のつるべ式交流エレベータにおいて、上昇運転
時は、上昇方向接触器１２ａ＊１２ｂ及び高速用接触器
接点１０ａ〜１０ｃが閉成され、これによシ三相交流を
電動機５に加えて、その高速巻線５ａを三相励磁し、−
電動機５をかご３が上昇する方向に起動する。このとき
、上昇方面接触器１２ｍ、１２ｂと連動するブレーキ接
点１２ ａが閉じるため、電磁コイル７ａが励磁され電
磁ブレーキ７は解放されている。また、この高速巻線の
三相励磁は、上昇運転時の起動加速がら一定速にかけて
行われ、これにょシかご３を一定速で上昇運転させる。In the crane type AC elevator having the above configuration, during upward operation, the upward contactors 12a*12b and the high speed contactors 10a to 10c are closed, thereby adding three-phase alternating current to the electric motor 5. The high-speed winding 5a is excited in three phases, -
The electric motor 5 is started in the direction in which the car 3 moves upward. At this time, the brake contact 12a that is linked to the upward contactors 12m and 12b is closed, so the electromagnetic coil 7a is energized and the electromagnetic brake 7 is released. Further, this three-phase excitation of the high-speed winding is carried out at a constant speed from the start-up acceleration during the ascending operation, thereby causing the elevator car 3 to operate upward at a constant speed.
かごが目的階の手前所定距離まで上昇すると。When the car rises to a predetermined distance before the destination floor.
高速用接触器接点１０ａ〜１０ ｃが開放され、低速用
接触器接点１１１〜Ｉｌｃが閉成され、これにょシミ動
機５の低速巻線５ｂを三相励磁し、電動機５を低速駆動
してかご上昇速度を減速させ。The high-speed contactor contacts 10a to 10c are opened, and the low-speed contactors 111 to Ilc are closed, and the low-speed winding 5b of the stain motor 5 is energized in three phases to drive the electric motor 5 at low speed to start the car. Decrease the rate of rise.
乗場床近くまで微速で一定速運転させる。そしてかご床
が目的階の乗場床に十分に近づいた段階でブレーキ接点
１２ｃを開放し、電磁ブレーキ７を動作させ制動するこ
とでかご３を定点に停止させる。Operate at a constant speed at a slow speed until close to the landing floor. Then, when the car floor sufficiently approaches the landing floor of the destination floor, the brake contact 12c is opened, and the electromagnetic brake 7 is activated to brake the car 3, thereby stopping the car 3 at a fixed point.
また、下Ｅ；ト運転に際しては、下降方向接触器１３ａ
、Ｊ３ｂ及び高速用接触器接点１０ａ〜１０ｃを閉成し
、かつブレーキ接点１３ ｅを閉じて電磁ブレーキ７を
開放する。これによシ箱、動機５の高速巻線５ａを三相
励磁して、電動機５をかごが下降する方向に起動から一
定速まで加速するとともに、かご３を一定速で下降運転
させる。そしてかご３が目的階の手前り足距離複で下降
すると、上昇運転時と同様に高速用接触器接点１０ａ〜
１０ ｃが開き、低速用接触器接点１１８〜Ｉｌｃが閉
じることによシミ動機５の低速巻線５ｂに三相電源が供
給され、低速巻線５ｂを三相励磁することで制動減速さ
せ、かご床が乗場床に十分に近づいた後、ブレーキ接点
１３ ｃを開＠電磁ブレーキ７を動作させてブレーキを
かけることによシ、かご３を目的階の定点に停止させる
。In addition, when operating the downward direction contactor 13a,
, J3b and the high-speed contactor contacts 10a to 10c are closed, and the brake contact 13e is closed to open the electromagnetic brake 7. As a result, the high-speed windings 5a of the car box and motive 5 are excited in three phases, and the electric motor 5 is accelerated from startup to a constant speed in the direction in which the car descends, and the car 3 is operated downward at a constant speed. Then, when the car 3 descends a foot distance before reaching the destination floor, the high-speed contactor contacts 10a to
10c opens and the low-speed contactor contacts 118 to Ilc close, three-phase power is supplied to the low-speed winding 5b of the stain motor 5, and the low-speed winding 5b is energized in three phases to brake and decelerate the car. After the floor has sufficiently approached the landing floor, the brake contact 13c is opened and the electromagnetic brake 7 is operated to apply the brake, thereby stopping the car 3 at a fixed point on the destination floor.
しかし、上記のような従来のエレベータ制御装置におい
ては、′」動機の旨速側及び低速側巻線ともエレベータ
の運転方向に合せて接触器によシ切替えるものであるた
め、２段速制御のための接点数が多くなる。However, in the conventional elevator control device as described above, since both the high-speed side and low-speed side windings of the motive are switched by a contactor according to the operating direction of the elevator, two-speed control is not possible. The number of contacts increases.
エレベータを駆動する２段速度モータの低速側巻線の役
割には２つある。その１っは、エレベータ着床まぎわの
速度を低くして、がご床を十分に乗場床に近づけてから
ブレーキをかけ、乗場床とがご床を精度よく合せること
である。The low-speed winding of the two-speed motor that drives the elevator has two roles. The first method is to reduce the speed at which the elevator reaches the floor, bring the elevator sufficiently close to the landing floor, and then apply the brakes so that the landing and elevator floors are aligned with precision.
また、もう１つとしては、エレベータの保守時あるいは
据伺時にかご上に保守員が乗って昇降路内の昇降運転す
る場合、安全性の観点から大体３０ ｍ／ａ以下の速度
に設定され、この運転のために低速側巻線が使用される
。Another reason is that when a maintenance worker rides the car up and down the hoistway during maintenance or inspection of the elevator, the speed is set to approximately 30 m/a or less from a safety perspective. The slow side winding is used for this operation.
しかし１通常運転の定格速度が３０ ｍ／ｓ以下のエレ
ベータでは、通常時と同じ速度で保守点検することがで
きるため、低速巻線を使用しなくても良くなる。However, for elevators whose rated speed during normal operation is 30 m/s or less, maintenance and inspection can be performed at the same speed as normal operation, so there is no need to use a low-speed winding.
一方、上昇あるいは下降方向に走行しているエレベータ
を制動し１着床まぎわで微速で走行させるのに、モータ
低速巻線を単相励磁による交番磁界でも可能である。し
たがって、定格速度の低いニー、Ｈベータでは、低速側
巻線を単相で多極とすれば、通常の定格速度で保守運転
を可能とするエレベータの運転制御に好適となるのであ
る。On the other hand, in order to brake an elevator traveling in the ascending or descending direction and cause it to run at a very slow speed at one landing point, it is also possible to use an alternating magnetic field by single-phase excitation of the low-speed motor winding. Therefore, for knee and H betas with low rated speeds, if the low speed side winding is single-phase and multipolar, it is suitable for controlling the operation of elevators that enable maintenance operations at normal rated speeds.
この発明は、上記点に着目してなされたもので、通常の
定格速度で保守運転が可能な２段速度電動機を有するエ
レベータにおいて、電動機の低速側巻線を多極単相とす
ることにより、低速側巻線を少なくシ、電動機の小形化
低価格化を図るとともに、低速側巻線への電力制御用接
触器接点の数を減少できるようにした交流エレベータの
制御装置を提供することを目的とする。This invention was made with attention to the above point, and in an elevator having a two-speed motor that can be maintained at a normal rated speed, by making the low-speed side winding of the motor multi-pole and single-phase, An object of the present invention is to provide a control device for an AC elevator that reduces the number of low-speed side windings, reduces the size and cost of the motor, and reduces the number of power control contact points connected to the low-speed side windings. shall be.
以下、この発明の具体的実施例を図面について説明する
。Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
第２図ｄ二この発明の交流エレベータ制御装置Ｆの一例
を示すもので、第１図と同一符号は同一部分を表わし、
１５は巻上機１と軸６を介して結合された電！ＩＩＩ機
であシ、この電動機１５は三相の高速巻線１５１１及び
多極単相の低速巻線１５ｂを備え、高速巻線１５ｍが三
相励磁されたとき電動機１５を保守運転可能な定格速度
で駆動できるようにするとともに、低速巻線１５ ｂが
単相励磁されたとき電動機１５に制動トルクを発生させ
、所定方向に走行しているかごを減速させるようになっ
ている。Fig. 2d shows an example of the AC elevator control device F of the present invention, in which the same reference numerals as in Fig. 1 represent the same parts;
15 is an electric cable connected to the hoisting machine 1 via the shaft 6! This motor 15 is equipped with a three-phase high-speed winding 1511 and a multi-pole single-phase low-speed winding 15b, and when the high-speed winding 15m is energized in three phases, the motor 15 can be operated at a rated speed that allows maintenance operation. In addition, when the low-speed winding 15b is single-phase excited, the electric motor 15 generates a braking torque to decelerate the car traveling in a predetermined direction.
上記電動機１５の高速巻線１５ａと上昇方向接触器接点
１２ ＆ 、 １２ ｂ又は下降方向接触器接点１３８
゜１３ｂを介しての電源端子９Ｒ，！Ｉｓ及び電源端子
９Ｔとを結ぶ三相ラインには定格用接触器接点１６ ＆
、 １６ ｂ 、 １．５ ｃがそれぞれｉ直列に接
続、され、また、電動機１５の低速巻線１５ｂと上昇方
向又は下降方向接触器接点１２ ｂ又ｉ３ａを介して切
換接続される電源端子９Ｒ又は９Ｓ及びＹＬノ端子９Ｔ
どを結ぶ単相ラインには減速用の接触器接点１７６゜１
７ｂがそれぞれ直列に接続されている。Ｊ８は電磁プ１
ノ−キ７の電磁コイル７ｍと血流型の８を結ぶ回路に直
列に接続したブレーキ接点である。The high-speed winding 15a of the electric motor 15 and the upward direction contactor contacts 12 &, 12b or the downward direction contactor contacts 138
Power terminal 9R, ! via ゜13b. Rating contactor contact 16 &
. 9S and YL terminal 9T
A contactor contact 176°1 for deceleration is attached to the single-phase line connecting the
7b are connected in series. J8 is electromagnetic puller 1
This is a brake contact connected in series to the circuit connecting the electromagnetic coil 7m of the Norki 7 and the blood flow type 8.
第３図は縦軸にトルクを、横軸にモータ回転数を取って
表わした電動機のトルク特性図であって、曲線Ｉはη↓
動機高速巻線が三相励磁されグＣときのトルク倖り性で
あシ、曲線１１は低速巻線が単相励（みされたときのト
ルク特性であり、直線■は負荷トルクである。ま／こ１
曲線■は低速巻線が三相励（１Ｆ＆されたツバ合のトル
ク特性を示すもので、この発明には関係がないが、多極
単相の低速巻線を単相励磁したときのトルク特性と比較
しただけのものである。Figure 3 is a torque characteristic diagram of an electric motor, with torque on the vertical axis and motor rotation speed on the horizontal axis, where curve I is η↓
Curve 11 is the torque characteristic when the high-speed winding is excited in three phases; curve 11 is the torque characteristic when the low-speed winding is excited in single phase; the straight line {circle around (2)} is the load torque. Ma/ko 1
The curve ■ shows the torque characteristics when the low-speed winding is three-phase excited (1F&), and although it is not related to this invention, it shows the torque characteristics when the multi-pole single-phase low-speed winding is single-phase excited. It is just a comparison.
次に、上記のように４？４成された本夾施例の動作につ
いで説明する。Next, the operation of the present embodiment, which is constructed as described above, will be explained.
エレベータの上昇運転時は、上昇方向接触器接点１２ａ
、１２ｂ及び定格用接触器接点１６１１〜１６ｃが閉成
され、ブレーキ接点１８が閉成される。ブレーキ接点１
８が閉じることによシ霜、磁コイルが励磁され電磁ブレ
ーキ７を開放する。また、上記上昇方向及び定格用接触
器接点１２＆、１２ｂ及び１６ ａ〜１６ ｃが閉じる
ことにニジ１Ｌ動機１５の三相高速巻線１５ａに三相交
流が供給され、冒速巻線１５ Ａ ｆ、三相励磁して電
動機１５を上昇方向にカ行運転させる。これによｐかご
３は曲線Ｉに示すモータトルクと直線■に示す負荷トル
クＴ夏。During upward operation of the elevator, the upward direction contactor contact 12a
, 12b and the rating contactor contacts 1611 to 16c are closed, and the brake contact 18 is closed. Brake contact 1
8 closes, the magnetic coil is energized and the electromagnetic brake 7 is released. Furthermore, when the upward direction and rating contactor contacts 12&, 12b, and 16a to 16c are closed, three-phase AC is supplied to the three-phase high-speed winding 15a of the Niji 1L motor 15, and the high-speed winding 15 A f , the electric motor 15 is operated in the upward direction by three-phase excitation. As a result, P car 3 has the motor torque shown by the curve I and the load torque T shown by the straight line ■.
との差に相当するトルクで上昇方向に加速されるととも
に、モータトルクと負荷トルクとが釣合う点Ａ１に達す
ると、電動機１５の回転速度はＮＡ。When the electric motor 15 is accelerated in the upward direction by a torque corresponding to the difference between the two and reaches a point A1 where the motor torque and the load torque are balanced, the rotational speed of the electric motor 15 is NA.
の一定速度となシ、この速度ＮＡｊでかご３を上昇方向
に一定速運転させる。The car 3 is operated at a constant speed in the upward direction at this speed NAj.
一方、上記上昇運転中のかご３が目的階の手前所定距離
まで上昇すると、定格用接触器接点１６ａ〜１６ ｅが
開放し、減速用接触器接点１７Ｍ。On the other hand, when the car 3 during the upward operation rises to a predetermined distance before the destination floor, the rating contactor contacts 16a to 16e open, and the deceleration contactor contact 17M opens.
１７ｂが閉成する。これによシ多極単相の低速巻線１５
ｂに単相交流が供給され、低速巻線１５ｂを単相励磁す
ることで、電動機１５に第３図の点Ａ１と点Ｃ１間の距
離に相当する制動トルクを発生させ、電動機１５の速度
を速度ＮＡ１から順次減速させるとともにかごの上昇速
度を減速させる。17b is closed. With this, the multi-pole single-phase low-speed winding 15
b is supplied with single-phase alternating current, and single-phase excitation of the low-speed winding 15b causes the motor 15 to generate a braking torque corresponding to the distance between point A1 and point C1 in FIG. 3, thereby increasing the speed of the motor 15. The speed is sequentially reduced from the speed NA1, and the rising speed of the car is also reduced.
そして、曲線ｎで示すトルクと負荷トルクＴＬとが釣合
う点Ｂ２に達すると、電動機１５の回転速度はＮＢ２と
なシ、この速度ＮＢ２でかご３を乗場床に向は微速走行
させる。これによりかご３が目的階の定点近くまで上昇
すると、減速用接触器接点１７ ａ 、 １７ ｂが開
放され、電動機１５への電力供給が遮断されるとともに
、ブレーキ接点１８が電数され、！磁ブレーキ７を動作
させて巻上機１に急ブレーキをかけ、かご３を定点に停
止保持させる。When the torque shown by the curve n reaches a point B2 where the load torque TL is balanced, the rotational speed of the electric motor 15 becomes NB2, and the car 3 is caused to run at a slow speed toward the hall floor at this speed NB2. As a result, when the car 3 rises close to a fixed point on the destination floor, the deceleration contactors 17a and 17b are opened, the power supply to the electric motor 15 is cut off, and the brake contact 18 is closed. The magnetic brake 7 is operated to apply a sudden brake to the hoist 1 to stop and hold the car 3 at a fixed point.
また、エレベータの下降運転時は、下降方向接触器接点
１３ａ ａ １３ ｂ及び定格用接触器接点１６＆〜１
６ （＋が閉成され、ブレーキ接点１８が閉成する。In addition, during the downward operation of the elevator, the downward direction contactor contacts 13a a 13b and the rating contactor contacts 16&~1
6 (+ is closed, the brake contact 18 is closed.
ブレーキ接点１８の閉成によシミ磁ブレーキ７を開放す
るとともに、下降方向及び定格用接触器接点Ｈｉ ａ
＝ １６ ａの閉成によシミ動機１５の三相高速巻＃ｊ
１５ｍを三相励磁して、上記上昇運転時と同様に電動機
１５をカ行運転させ、かご３を下降方向に加速、一定速
運転させる。そしてモータトルクと負荷トルクＴＬが釣
合う点Ａ１の速度ＮＡ１の速度でかご３が下降方向に一
定速運転されているとき、かご３が目的階の手前所定距
離筐で下降すると、接触器接点ｉ６ａ〜１６ｅが開き、
減速用接触器接点１７ｍ、１７ｂが閉成される。これに
よシ上記上昇運転時と同様にして電動機１５の多極単相
の低速巻線１５ｂが単相励磁され、電動機１５を単相回
生制動してかご３を減速し、モータ単相トルクと負荷ト
ルクＴＬが釣合う点Ｂ２の速度ＮＢ２でかご３を乗場床
に向は微速走行させる。そしてかご３が定点に達すれば
、ブレーキ接点１８が開き、を出ブレーキ７が動作し、
巻上機１に急ブレーキをかけることによシ、かご３を定
点に停止保持させるのである。By closing the brake contact 18, the stain magnetic brake 7 is opened, and the contactor contact Hi a for the downward direction and rating is closed.
= 16 By closing a, three-phase high-speed winding #j of stain motive 15
15 m is excited in three phases, the electric motor 15 is operated in the same way as in the above-mentioned upward operation, and the car 3 is accelerated in the downward direction and operated at a constant speed. Then, when the car 3 is being operated at a constant speed in the downward direction at the speed NA1 at the point A1 where the motor torque and the load torque TL are balanced, when the car 3 descends a predetermined distance before the destination floor, the contactor contact i6a ~16e opens,
The deceleration contactor contacts 17m and 17b are closed. As a result, the multi-pole, single-phase, low-speed winding 15b of the electric motor 15 is single-phase excited in the same way as during the upward operation, and the electric motor 15 is subjected to single-phase regenerative braking to decelerate the car 3, and the motor single-phase torque is increased. The car 3 is made to run at a slow speed toward the landing floor at a speed NB2 at a point B2 where the load torque TL is balanced. When the car 3 reaches a fixed point, the brake contact 18 opens and the brake 7 operates.
By applying a sudden brake to the hoisting machine 1, the car 3 is stopped and held at a fixed point.
以上説明した通シこの発明によれば、通常の定格速度で
保守運転が可能な２段速度電動機を有するエレベータに
おいて、電動機の低速側巻線を多極単相としたので、従
来の三相巻線としたものに比し低速側巻線を少なくでき
るとともに、電動機の小形化及び低価格化が可能となシ
、さらに低速側巻線は単相励磁されるものであるため、
低速側巻線への電力を制御する接触器接点の数が少なく
て済む利点がある。According to the present invention as described above, in an elevator having a two-speed motor that can be operated for maintenance at the normal rated speed, the low-speed winding of the motor is made multi-pole and single-phase, so that it can be replaced with a conventional three-phase winding. The number of low-speed side windings can be reduced compared to wire-based ones, and the motor can be made smaller and less expensive.Furthermore, since the low-speed side winding is single-phase excited,
There is an advantage that the number of contactor contacts for controlling power to the low-speed side winding is small.
第１図は従来の交流エレベータ制御装置を示す電気回路
接続図、第２図はこの発明の交流エレベータ制御装置お
一例を示す電気回路接続図、第３図はこの発明における
電動機のトルク特性図である。
図面において、１は巻上機、２は主索、３はかご、４は
釣合おもシ、７は電磁ブレーキ、ｇＨ，９８，９Ｔは三
相交流電源端子、１２ａａ１２ｂは上昇方向接触器接点
、１３＆、１３ｂは下降方向接触器接点、１５は電動機
、１５ｍは高速巻線、１５ｂは低速巻線、１６ ｍ −
１６ｃは定格用接触器接点、１７ｍ、１７ｂｔｊ：減速
用接触器接点である。
なお１図中同一符号は同−又は相当部分を示すＯ
代理人 大 岩 増 雄（外２名）Fig. 1 is an electric circuit connection diagram showing a conventional AC elevator control device, Fig. 2 is an electric circuit connection diagram showing an example of the AC elevator control device of the present invention, and Fig. 3 is a torque characteristic diagram of the electric motor in the present invention. be. In the drawing, 1 is the hoisting machine, 2 is the main rope, 3 is the cage, 4 is the counterweight, 7 is the electromagnetic brake, gH, 98, 9T are the three-phase AC power terminals, and 12aa12b is the upward direction contactor contact. , 13&, 13b are downward direction contactor contacts, 15 is a motor, 15m is a high speed winding, 15b is a low speed winding, 16 m −
16c is a contactor contact for rating, 17m, 17btj is a contactor contact for deceleration. In addition, the same reference numerals in each figure indicate the same or equivalent parts.O Agent: Masuo Oiwa (two others)
Claims (1)
するエレベータにおいて、上記電動機の高速巻線を三相
とし、かつ上記電動機の低 −速巻線を多極単相とし、
該低速巻線の単相励磁時は電動機に制動トルクを生じさ
せるようにしたことを特徴とする交流エレベータの制御
装置。In an elevator having a two-speed motor that can be maintained at a normal rated speed, the high-speed winding of the motor is three-phase, and the low-speed winding of the motor is multi-pole and single-phase;
A control device for an AC elevator, characterized in that a braking torque is generated in an electric motor during single-phase excitation of the low-speed winding.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58169716A JPS6061478A (en) | 1983-09-14 | 1983-09-14 | Controller for alternating current elevator |
| KR2019840007315U KR870001019Y1 (en) | 1983-09-14 | 1984-07-27 | An elevator controller |
| GB08423118A GB2149586B (en) | 1983-09-14 | 1984-09-13 | A system for controlling an elevator |
| SG467/87A SG46787G (en) | 1983-09-14 | 1987-05-22 | A system for controlling an elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58169716A JPS6061478A (en) | 1983-09-14 | 1983-09-14 | Controller for alternating current elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6061478A true JPS6061478A (en) | 1985-04-09 |
Family
ID=15891537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58169716A Pending JPS6061478A (en) | 1983-09-14 | 1983-09-14 | Controller for alternating current elevator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS6061478A (en) |
| KR (1) | KR870001019Y1 (en) |
| GB (1) | GB2149586B (en) |
| SG (1) | SG46787G (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2165408B (en) * | 1984-10-03 | 1988-09-21 | Smith Ind Plc | Motor control systems and methods |
| ATE92005T1 (en) * | 1989-10-16 | 1993-08-15 | Otis Elevator Co | CONTROL DEVICE FOR LIFT WITHOUT SPEED SENSOR. |
| DE4016836A1 (en) * | 1990-05-25 | 1991-11-28 | Elektronik Regelautomatik | Safety system for asynchronous motor drive - monitors wide range of operating and function parameters to allow rapid detection of abnormality |
-
1983
- 1983-09-14 JP JP58169716A patent/JPS6061478A/en active Pending
-
1984
- 1984-07-27 KR KR2019840007315U patent/KR870001019Y1/en not_active IP Right Cessation
- 1984-09-13 GB GB08423118A patent/GB2149586B/en not_active Expired
-
1987
- 1987-05-22 SG SG467/87A patent/SG46787G/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB8423118D0 (en) | 1984-10-17 |
| GB2149586B (en) | 1987-01-21 |
| SG46787G (en) | 1987-08-28 |
| KR850009578U (en) | 1985-12-05 |
| GB2149586A (en) | 1985-06-12 |
| KR870001019Y1 (en) | 1987-03-20 |
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