JPS6149692A - Speed controller of motor - Google Patents
Speed controller of motorInfo
- Publication number
- JPS6149692A JPS6149692A JP59170717A JP17071784A JPS6149692A JP S6149692 A JPS6149692 A JP S6149692A JP 59170717 A JP59170717 A JP 59170717A JP 17071784 A JP17071784 A JP 17071784A JP S6149692 A JPS6149692 A JP S6149692A
- Authority
- JP
- Japan
- Prior art keywords
- acceleration
- deceleration
- loop
- motor
- operated
- 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
-
- 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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/20—Controlling the acceleration or deceleration
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、電動機の速度制御装置に係り、ｑ、７に加減
速特性を改善した速度制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a speed control device for an electric motor, and more particularly, to a speed control device with improved acceleration/deceleration characteristics in Q and 7.
通常、クレーンの横走行用には巻線形電動機が用いられ
、二次抵抗制御による速度制御が採用されている。この
速度制御は、装置のコントローラのノツチを駆動時には
加速ノツチとし、加速指令信号を加速ループを介して電
動機に供給し、二次抵抗を段階的に減少して電動機を一
定回転数まで加速し、停止時には減速ノツチとし、減速
指令信号を減速ループを介して電動機に供給し、二次抵
抗を段階的に増加して電動機を一定回転数から減速する
ようにして行なわれている。従って、加減速指令はラン
プ状となり、電動機は第１図に示すように一定の加減速
度で運転される。一方、該電動機の理想的な加減速特性
は、第２図に示す如くとなる。ここで第１図を第２図と
比較すると加速当初加速度が不足し、減速当初減速が過
大となる。Usually, a wound motor is used for horizontal movement of a crane, and speed control is performed using secondary resistance control. This speed control uses the notch of the controller of the device as an acceleration notch when driving, supplies an acceleration command signal to the electric motor via an acceleration loop, and accelerates the electric motor to a constant rotation speed by decreasing the secondary resistance in stages. When stopped, a deceleration notch is set, a deceleration command signal is supplied to the motor via a deceleration loop, and the secondary resistance is increased in stages to decelerate the motor from a constant rotational speed. Therefore, the acceleration/deceleration command is ramp-shaped, and the motor is operated at a constant acceleration/deceleration as shown in FIG. On the other hand, the ideal acceleration/deceleration characteristics of the electric motor are as shown in FIG. Comparing FIG. 1 with FIG. 2, the acceleration at the beginning of acceleration is insufficient, and the deceleration at the beginning of deceleration is excessive.
従って、従来装置によると、クレーン等の横走行時ノツ
チ進め時には即応性に欠け、またノツチ戻し時には惣、
激に減速してショックが生じていた。Therefore, with the conventional device, there is a lack of quick response when the notch is advanced during horizontal travel of a crane, etc., and when the notch is returned, the
The car slowed down drastically and I was in shock.
また、第２図に示すような理想的な加減速特性に近づけ
るには、コントローラのパッチ操作を変速的に行なわな
ければならないため、従来と操作感覚が異なり運転しず
らくなる。Furthermore, in order to approximate the ideal acceleration/deceleration characteristics as shown in FIG. 2, the patch operation of the controller must be performed in a speed-changing manner, which makes the operation feel different from the conventional one and makes driving difficult.
本発明は加速ループと減速ループに可変抵抗手段及びこ
の可変抵抗手段をコントローラの加速。The present invention provides variable resistance means in the acceleration loop and deceleration loop, and the variable resistance means is used to accelerate the controller.
減速指令により動作して制御する時間制御手段を設り、
この時間制御手段により加速指令より一定時間加速ルー
プの抵抗を所定値より減少させ、かつ減速指令より一定
時間減速ループの抵抗を所定値より増加させることによ
り、上記欠点を除去するものであり、以下実施例を用い
て詳細に説明する。A time control means is provided to operate and control based on deceleration commands,
This time control means eliminates the above drawback by reducing the resistance of the acceleration loop from a predetermined value for a certain period of time according to an acceleration command, and increasing the resistance of the deceleration loop from a predetermined value for a certain period of time according to a deceleration command. This will be explained in detail using examples.
第３図は本発明による電動機の速度制御装置の一実施例
を示すブロック図である。同図において、１はコントロ
ーラ、２は比較器、３はコンパレータ、４．５はダイオ
ード、６，７は時間制御手段としてのタイマ、８及び９
．１０及び１１は上記タイマ６．７により作動する常閉
及び常開の加減速度切替用リレー、１２及び１３．１４
及び１５は可変抵抗手段としての加減速度調整用ボリュ
ームである。なお、上記ダンオード４．タイマ６゜加減
速度切替用リレー８及び９．加減速度調整用ボリューム
１２及び１３とダイオード５．タイマ７、加減速度切替
用リレー１０及び１１．加減速度調整用ボリューム１４
及び１５はそれぞれダイオード４，５の極性により加速
ループＡと減速ループＢを形成している。一方、１６は
積分器、１７はコンデンサであり、上記積分器１６の出
力は速度指令として図示しない電動機に出力されるとと
もに前記比較器２にフィードバックされている。FIG. 3 is a block diagram showing an embodiment of a speed control device for an electric motor according to the present invention. In the figure, 1 is a controller, 2 is a comparator, 3 is a comparator, 4.5 is a diode, 6 and 7 are timers as time control means, 8 and 9
．． 10 and 11 are normally closed and normally open acceleration/deceleration switching relays operated by the timer 6.7, 12 and 13.14
and 15 is a volume for adjusting acceleration/deceleration as variable resistance means. In addition, the above-mentioned Dan Ord 4. Timer 6° acceleration/deceleration switching relays 8 and 9. Volumes 12 and 13 for adjusting acceleration/deceleration and diodes5. Timer 7, acceleration/deceleration switching relays 10 and 11. Acceleration/deceleration adjustment volume 14
and 15 form an acceleration loop A and a deceleration loop B depending on the polarity of the diodes 4 and 5, respectively. On the other hand, 16 is an integrator, and 17 is a capacitor. The output of the integrator 16 is output as a speed command to an electric motor (not shown), and is also fed back to the comparator 2.
次に以上のように溝底された本実施例の作用について第
４図を併用して説明する。−まず、初期設定時、加減速
度調整用ボリューム１２．１５をそれぞれ加減速度調整
用ボリューム１３．１４よりも抵抗小に調整し、タイマ
６．７を所定の時間に設定する。そして、電動機を駆動
する場合は従来同様コントローラｌのノツチを進めて加
速ノツチとする。このとき、コンパレータ３からは正の
出力、つまり加速指令信号が出力され、ダイオード４に
より加速ループＡに入力され、常閉の加減速度切替用リ
レー８．抵抗小なる加減速度調整用ボリューム１２を介
して積分器１６に入力されるとともにタイマ６が作動さ
れる。積分器１６からは第４図のａｌと同様な速度指令
が出力され、電動機は同図ａｌで示す加速度で運転され
る。次に、一定時間経過するとタイマ６がタイムアツプ
し、加減速度切替用リレー８が開成し、９が閉成する。Next, the operation of this embodiment with the groove bottomed as described above will be explained with reference to FIG. 4. - First, at the time of initial setting, the acceleration/deceleration adjustment volumes 12.15 are adjusted to have a smaller resistance than the acceleration/deceleration adjustment volumes 13.14, and the timer 6.7 is set to a predetermined time. When driving the electric motor, the notch of the controller 1 is advanced to the acceleration notch as in the conventional case. At this time, a positive output, that is, an acceleration command signal, is output from the comparator 3, which is input to the acceleration loop A through the diode 4, and the normally closed acceleration/deceleration switching relay 8. The signal is input to the integrator 16 via the acceleration/deceleration adjustment volume 12 with small resistance, and the timer 6 is activated. A speed command similar to al in FIG. 4 is output from the integrator 16, and the motor is operated at an acceleration shown by al in the figure. Next, after a certain period of time has elapsed, the timer 6 times up, the acceleration/deceleration switching relay 8 opens, and the relay 9 closes.
これにより、コンパレータ３からの加速指令信号は、加
減速度切替用リレー９及び抵抗大なる加減速度８Ｂ］
１ｕ用ボリユーム１２を介して積分器１６に人力される
ことにより積分器１６からの速度指令の増加率は低下し
、電動機は第４図のａ２で示す加速度で運転される。電
動機の回転数が所定値に達すると、比較器２及びコンパ
レータ３の働きにより、電動機は第４図のｂで示すよう
な定速回転となる。一方、電動機を停止する場合には、
従来同様コントローラ１のノツチを戻して減速ノツチと
することにより、コンパレータ３からは負の出力、つま
り減速指令信号が出力され、ダイオード５により減速ル
ープＢに入力される。以下、上記加速時と同様にタイマ
７が作動して、減速指令より一定時間減速ループＢの抵
抗が大となることにより、電動機は減速当初第４図のＣ
Ｉで示すように減速度が抑制され、一定時間経過後減速
度Ｃ２に移行し停止する。As a result, the acceleration command signal from the comparator 3 is transmitted to the acceleration/deceleration switching relay 9 and the acceleration/deceleration 8B with a large resistance.
By applying manual power to the integrator 16 via the 1u volume 12, the rate of increase in the speed command from the integrator 16 is reduced, and the motor is operated at an acceleration indicated by a2 in FIG. 4. When the rotational speed of the electric motor reaches a predetermined value, the comparator 2 and the comparator 3 act to cause the electric motor to rotate at a constant speed as shown by b in FIG. 4. On the other hand, when stopping the electric motor,
As in the conventional case, by returning the notch of the controller 1 to the deceleration notch, the comparator 3 outputs a negative output, that is, a deceleration command signal, which is input to the deceleration loop B by the diode 5. Thereafter, the timer 7 operates in the same way as during acceleration, and the resistance of the deceleration loop B becomes greater for a certain period of time than the deceleration command, so that the motor
As shown by I, the deceleration is suppressed, and after a certain period of time, the deceleration shifts to C2 and stops.
以上説明したように、本発明による電動機の速度制御装
置によれば、加速ループと減速ループに可変抵抗手段及
びこの可変抵抗手段をコントローラの加速、減速指令に
より動作して制御する時間制御手段を設け、この時間制
御手段により加速指令より一定時間加速ループの抵抗を
所定値より減少させ、かつ減速指令より一定時間減速ル
ープの抵抗を所定値より増加させたことにより、操作性
を…うことなく、良好な加減速時性が得られるという効
果がある。As explained above, according to the speed control device for an electric motor according to the present invention, the acceleration loop and the deceleration loop are provided with the variable resistance means and the time control means for operating and controlling the variable resistance means in response to acceleration and deceleration commands from the controller. By using this time control means, the resistance of the acceleration loop is decreased from a predetermined value for a certain period of time according to an acceleration command, and the resistance of the deceleration loop is increased from a predetermined value for a certain period of time according to a deceleration command, without impairing operability. This has the effect of providing good acceleration/deceleration characteristics.
４９図面のｔｉｅｒ 、ｉｉ’ｉ、な説明第１図は電動
機の速度制御装置の従来例における加減速′ｌ）・性を
示す図、第２図は理想的な加減速特性を示す図、第３図
は本発明による速度制御装置の一実施例を示すブロック
図、第４図は上記実施例におりる加減速特性を示す図で
ある。49 Explanation of the tiers, ii'i, and tiers of the drawings Fig. 1 is a diagram showing acceleration/deceleration characteristics in a conventional example of a speed control device for an electric motor; Fig. 2 is a diagram showing ideal acceleration/deceleration characteristics; FIG. 3 is a block diagram showing one embodiment of the speed control device according to the present invention, and FIG. 4 is a diagram showing acceleration/deceleration characteristics in the above embodiment.
１・・・コントローラ、６．７・・・タイマ、８〜１１
・・・加減速度切替用リレー、１２〜１５・・・加減速
度調整用ボリューム、Ａ・・・加速ループ、Ｂ・・・減
速ループ。1... Controller, 6.7... Timer, 8-11
... Acceleration/deceleration switching relay, 12-15... Acceleration/deceleration adjustment volume, A... Acceleration loop, B... Deceleration loop.
代理人 大 岩 増 雄（ほか２名）第１図
第２図
第３図
第４図
膚間Agent Masuo Oiwa (and 2 others) Figure 1
Figure 2 Figure 3 Figure 4 Between the skin
Claims (1)
動機を一定回転数まで加速し、減速指令信号を減速ルー
プを介して電動機に供給して電動機を上記一定回転数か
ら減速するように制御するコントローラを備えた電動機
の速度制御装置において、上記加速ループと減速ループ
に可変抵抗手段及びこの可変抵抗手段を上記コントロー
ラの加速、減速指令により動作して制御する時間制御手
段を設け、この時間制御手段により加速指令より一定時
間加速ループの抵抗を所定値より減少させ、かつ減速指
令より一定時間減速ループの抵抗を所定値より増加させ
たことを特徴とする電動機の速度制御装置。An acceleration command signal is supplied to the motor via an acceleration loop to accelerate the motor to a constant rotation speed, and a deceleration command signal is supplied to the motor via a deceleration loop to control the motor to decelerate from the constant rotation speed. In a speed control device for an electric motor equipped with a controller, a variable resistance means and a time control means for operating and controlling the variable resistance means according to acceleration and deceleration commands from the controller are provided in the acceleration loop and the deceleration loop, and the time control means A speed control device for an electric motor, characterized in that the resistance of the acceleration loop is decreased from a predetermined value for a certain period of time according to an acceleration command, and the resistance of the deceleration loop is increased from a predetermined value for a certain period of time according to a deceleration command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59170717A JPS6149692A (en) | 1984-08-16 | 1984-08-16 | Speed controller of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59170717A JPS6149692A (en) | 1984-08-16 | 1984-08-16 | Speed controller of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6149692A true JPS6149692A (en) | 1986-03-11 |
Family
ID=15910088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59170717A Pending JPS6149692A (en) | 1984-08-16 | 1984-08-16 | Speed controller of motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6149692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01301998A (en) * | 1988-05-30 | 1989-12-06 | Daikin Ind Ltd | Air conditioner |
| JP2010010424A (en) * | 2008-06-27 | 2010-01-14 | Tdk Corp | Method of manufacturing chip component |
-
1984
- 1984-08-16 JP JP59170717A patent/JPS6149692A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01301998A (en) * | 1988-05-30 | 1989-12-06 | Daikin Ind Ltd | Air conditioner |
| JP2010010424A (en) * | 2008-06-27 | 2010-01-14 | Tdk Corp | Method of manufacturing chip component |
| JP4655117B2 (en) * | 2008-06-27 | 2011-03-23 | Ｔｄｋ株式会社 | Manufacturing method of chip parts |
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