JPS6194600A - Excitation controller - Google Patents

Excitation controller

Info

Publication number
JPS6194600A
JPS6194600A JP59213964A JP21396484A JPS6194600A JP S6194600 A JPS6194600 A JP S6194600A JP 59213964 A JP59213964 A JP 59213964A JP 21396484 A JP21396484 A JP 21396484A JP S6194600 A JPS6194600 A JP S6194600A
Authority
JP
Japan
Prior art keywords
manual
automatic
output
deviation
operation mode
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
Application number
JP59213964A
Other languages
Japanese (ja)
Inventor
Hide Saito
斎藤 秀
Masao Nakagawa
中川 征夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Electric Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP59213964A priority Critical patent/JPS6194600A/en
Publication of JPS6194600A publication Critical patent/JPS6194600A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
    • H02P9/30Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

PURPOSE:To eliminate a shock at the operation mode switching time by providing a tracing unit for controlling an automatic motor setter or a manual motor setter so that the outputs of an automatic operation controller and a manual operation controller coincides. CONSTITUTION:Converters 30, 31, 32 are switched to automatic side at automatic operation mode time, and the output of an automatic voltage regulator 60 is applied to a phase controller 2. At this time, a differential amplifier 9 outputs a deviation -DELTAE between the output of the regulator 60 and the output of a manual voltage regulator 82. If the absolute value ¦DELTAE¦ of the deviation exceeds a set value, the contacts 97, 98 of a relay 96 are closed to input the deviation -DELTAE to a manual motor setter 70. The converters 30, 31, 32 are switched to the manual side at the manual operation mode time, and the output of a manual voltage regulator 80 is applied to the controller 3.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、交流発電機の界磁をサイリヌj1装置など
牽介して励磁制御する装置に関し、特IC。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a device for controlling the excitation of the field of an alternating current generator through a Cylinu J1 device or the like, and relates to a special IC.

自動運転モードと手動運転モードとに切換え得るように
した励磁制御装置に関する。
The present invention relates to an excitation control device capable of switching between an automatic operation mode and a manual operation mode.

従来の技術 周知のように、発電機の出力と自動用設定器の数足゛α
圧との比較信号に基づいて励磁制御1]信号を発生する
自動運転制御部と1発電機への励磁電力と手動用設定器
の設定電圧との比較信号に基づいて励磁制御信号を発生
する手動運転制御部と、自動運転制御部の制御信号に従
って励磁電力を制御する自動運転モードか手動運転制御
部の制御信号に従って励磁′電力を制御する手動運転モ
ードかを切換える切換手段とを備えん励磁制tm装置が
従来から使用されている。
As is well known in the art, the output of the generator and the number of automatic setting devices are
An automatic operation control section that generates an excitation control signal based on a comparison signal with the pressure 1] and a manual operation control section that generates an excitation control signal based on a comparison signal between the excitation power to the generator and the set voltage of the manual setting device. An excitation control system comprising an operation control section and a switching means for switching between an automatic operation mode in which excitation power is controlled according to a control signal from an automatic operation control section and a manual operation mode in which excitation power is controlled in accordance with a control signal from a manual operation control section. tm devices have been used in the past.

発明が解決しようとする問題点 上記の従来装置では、運転モードを自動から手動へ、あ
るいは手動から自動に切換えたときに。
Problems to be Solved by the Invention In the conventional device described above, when the operation mode is switched from automatic to manual or from manual to automatic.

発成イクの出力が急変することがあった、例えば自動運
転モードで制御しているとき、上記手Wlh運転制御部
の制御信号レベルが上記自動運転モードの制御信号(制
御に使われている)のレベルに等しいとは限らない。両
信号レベルが大きく相違したままで運転モードの切換え
が強行されると、切換時点で励磁電力が急変し、したが
って発電機出力が急変する。このような切換時のショッ
クは1発電系統だけでなく負荷俊器に対しても悪影響を
及はす。 ゛ この発明は上述し次従来の問題点に鑑みなされたもので
あり、その目的は、装置内の愼器の消耗をできるだけ少
なくするように配慮された手段によって、運転モードの
切換時に上記のショックを発生しないようにした励磁制
御装&を提供することにある。
For example, when controlling in automatic driving mode, the control signal level of the hand Wlh driving control section may change suddenly. is not necessarily equal to the level of If the operating mode is forced to switch while the two signal levels remain largely different, the excitation power will suddenly change at the time of switching, and the generator output will therefore change suddenly. Such a shock during switching has an adverse effect not only on the power generation system but also on the load regulator.゛This invention was made in view of the above-mentioned problems of the prior art, and its purpose is to eliminate the above-mentioned shock when switching operation modes by means designed to minimize wear and tear on the machine inside the device. An object of the present invention is to provide an excitation control device & that prevents the occurrence of.

問題点を解決する九めの手段 この発明の装置では、前述の自動用設定器および手動用
設定器としてそれぞれ電動設定器を用い友。そして、前
記自動運転制御部の制御信号と前記手動運転制御部の制
陶個号との偏差を検出する差動p!幅部と、上記偏差が
所定の基準範囲を外れたときに出力を発するヒステリシ
スをもったニア7パレータと、このコンパレークの出力
信号または外部からの指令信号に応答して動作し、自動
運転モード時には上記手動用尾動設定器金制御するとと
もに手動運転モード時には上記自動用電動設定器を制御
して、上記偏差を減少式せる追従制御手段とt−設けた
Ninth Means for Solving the Problems In the apparatus of the present invention, electric setting devices are used as the automatic setting device and the manual setting device, respectively. Then, a differential p! is used to detect the deviation between the control signal of the automatic operation control section and the output signal of the manual operation control section. a near-7 comparator with hysteresis that outputs an output when the above-mentioned deviation is out of a predetermined reference range, and operates in response to the output signal of this comparator or an external command signal, and in automatic operation mode. Follow-up control means is provided to control the manual trailing setter and also control the automatic electric setter in the manual operation mode to reduce the deviation.

作用 上記、追従?1ilJ呻手段が動作すると1両制御11
11信号のレベルはほぼ等しくな9.その状態で運転モ
ードを切換えれば、ショックは発生しない。また1両制
御信号の偏差が基準範囲内にあれば上記追従制御手段は
動作しないので1両電動設定器の必要以上の消耗が防げ
る。
Effect above, follow? 1ilJ When the groaning means operates, 1 car control 11
9. The levels of the 11 signals are almost equal. If you switch the driving mode in this state, no shock will occur. Further, if the deviation of the one-car control signal is within the reference range, the follow-up control means does not operate, thereby preventing unnecessary wear and tear on the one-car electric setting device.

実施例 図は本発明の一実施例による励磁側n装置の構成を示し
ている。
Embodiment The figure shows the configuration of an excitation side n device according to an embodiment of the present invention.

図において、lOは交流発電1父で、このしi」でFi
関接接励磁方式採用しておシ、 11 、12は発@成
10のt様子および界磁巻線、 13 、14は励磁伝
およびその界磁巻線である。サイリヌク部1は、位孔制
到部2からのゲートパルスによって制御きれ、界磁巻線
14に励磁電力を供給する。
In the figure, lO is AC power generation 1, and Fi is
The articulating excitation method is adopted. 11 and 12 are the t state and field winding of the generator 10, and 13 and 14 are the excitation current and its field winding. The sirinuk section 1 can be controlled by the gate pulse from the position control section 2, and supplies excitation power to the field winding 14.

前述の自動運転側間部は、発電機10の出力電圧を検出
する検出部40と、自動用電動設定器50と、検出部I
IOの検出重圧DVと設定器50の設定電圧SVそれに
後述の偏差ΔVとに基づいて励磁制御信号EAを発生す
る自効電圧調整器60とからなる。
The automatic operation side section described above includes a detection section 40 that detects the output voltage of the generator 10, an automatic electric setting device 50, and a detection section I.
It consists of an self-effect voltage regulator 60 that generates an excitation control signal EA based on the detected heavy pressure DV of the IO, the set voltage SV of the setting device 50, and a deviation ΔV to be described later.

上記の検出部40は、計器用変圧器41および変流器4
2と、これらの出力を合成する抵抗43などからなる。
The detection unit 40 described above includes an instrument transformer 41 and a current transformer 4.
2, and a resistor 43 that combines these outputs.

自動用電動設定器50は、サーボアンプ51と。The automatic electric setting device 50 includes a servo amplifier 51.

これの出力を受けて回転するサーボモーフ52と。and a servomorph 52 that rotates in response to the output of this.

モータ52に結合された可変抵抗器53とからなる。and a variable resistor 53 coupled to a motor 52.

自動電圧調整器60は、上記3人力を加減算する演算部
61と、演算部61の出力を増幅する増幅部62などか
らなる。
The automatic voltage regulator 60 includes an arithmetic unit 61 that adds and subtracts the above-mentioned three human forces, an amplifying unit 62 that amplifies the output of the arithmetic unit 61, and the like.

また手動運転制御部は1発電機10への励磁電力を検出
する検出部20と、手動用這m設定器70と5%検出部
20の検出′ε圧DFと設定器70の設定電圧SFそれ
に後述の偏差−ΔEとに基づいて励磁制御信号EXを発
生する手動電圧調整器80とからなる。
In addition, the manual operation control section includes a detection section 20 that detects the excitation power to the generator 10, a manual setting device 70, a detected 'ε pressure DF of the 5% detection section 20, a set voltage SF of the setting device 70, and A manual voltage regulator 80 generates an excitation control signal EX based on a deviation -ΔE, which will be described later.

上記の検出部20は、励磁電圧を検出する計器用変圧器
21と、励破亀流を検出する電流器22との少なくとも
一万を備える。手動用電¥Ih設定器7oは、サーボア
ンプ71と、これの出力を受けて回転するサーボモーフ
72と、モータ72に結合された可変抵抗器73とから
なる。手動電圧調整器80 ia、上記3人力を加減算
する演算部81と、演算部81の出方を増幅する増幅部
82などからなる。
The detection unit 20 includes at least 10,000 instrument transformers 21 for detecting excitation voltage and amperage meters 22 for detecting excitation current. The manual power Ih setting device 7o includes a servo amplifier 71, a servo morph 72 that rotates in response to the output of the servo amplifier 71, and a variable resistor 73 coupled to a motor 72. It consists of a manual voltage regulator 80 ia, an arithmetic unit 81 that adds and subtracts the above three manual forces, an amplifying unit 82 that amplifies the output of the arithmetic unit 81, and the like.

運転モードの切換器30が「自動」側になると、自動運
転制御部の制御信号EAが位相制御部2Vc入力され、
この制御信号Eムに基づいて発電機1゜の励磁!IJ呻
が行なわれ5発!出力を支足させる。
When the operation mode switch 30 is set to the "auto" side, the control signal EA of the automatic operation control section is input to the phase control section 2Vc,
The generator 1° is excited based on this control signal E! IJ moaning is done and 5 shots! Support the output.

切換器30が「手動」側になると、手動運転制御部の制
御信号EMが位相制御部2に入力てれ、この制御信号E
M Ic基づいて発電機[oの励磁制御が行なわれ、励
磁電力を安定させる。
When the switch 30 is set to the "manual" side, the control signal EM of the manual operation control section is input to the phase control section 2, and this control signal E
Excitation control of the generator [o is performed based on M Ic to stabilize the excitation power.

また本発明の装置では、制御信号EAと制御信号EBと
の偏差dE (逆極性の一ΔE)が差吻増幅部91で検
出てれる。偏差出力ΔEは、手動運転モードのとき、切
換器30と連動する切換器31を介して自動電圧ル1を
整層60の演算部に人力される。また偏差出力−ΔEは
、自動運転モードのとき、切換器30と連動する切換器
32を介して手動電圧調整器80の演算部81に人力さ
れる。
Further, in the device of the present invention, the difference dE (ΔE of opposite polarity) between the control signal EA and the control signal EB is detected by the differential amplification section 91. In the manual operation mode, the deviation output ΔE is manually inputted to the calculation section of the automatic voltage regulator 1 through the switching device 31 which is linked to the switching device 30. Further, the deviation output -ΔE is manually inputted to the calculating section 81 of the manual voltage regulator 80 via the switching device 32 which is interlocked with the switching device 30 in the automatic operation mode.

また、偏差出力ΔEは絶対値回路92で免対値変換すれ
、コンパレータ94に人力される。コンパレータ94は
偏差1ΔE1と可変抵抗器93による基準1直Sとを比
較する。
Further, the deviation output ΔE is subjected to immunity value conversion in an absolute value circuit 92 and input to a comparator 94 . The comparator 94 compares the deviation 1ΔE1 with the reference 1S by the variable resistor 93.

コンパレータ94はヒステリシス’Flu−有り、 偏
差1ΔElが上部しきい値S1を上回ると出力が“H″
になり、偏差1ΔE1が下部しきい値82ヲ下回ると出
力が@L”に戻る。
The comparator 94 has hysteresis 'Flu-, and when the deviation 1ΔEl exceeds the upper threshold S1, the output becomes "H".
When the deviation 1ΔE1 becomes lower than the lower threshold value 82, the output returns to @L”.

;ンハレータ94のめ力が@H“になると、オア回路9
5を介してリレー96が駆動さn、その接点97.。
; When the force of the halator 94 becomes @H", the OR circuit 9
A relay 96 is activated via n, its contacts 97.5. .

98が閉じる。同様に、オア回路95に外部から@Yの
指令信号ADJが入力されると、リレー接点97゜98
が閉じる。オア回路95の出力が@L”7.あれば。
98 closes. Similarly, when the @Y command signal ADJ is externally input to the OR circuit 95, the relay contact 97°98
closes. If the output of the OR circuit 95 is @L”7.

リレー接点97 、98は開路する。Relay contacts 97 and 98 are opened.

手動運転モードにてリレー接点97 、98が閉じると
When relay contacts 97 and 98 close in manual operation mode.

偏差出力ΔEが切換器31と接点97を介して自動用電
動設定器50のサーボアンプ51に入力される。
The deviation output ΔE is input to the servo amplifier 51 of the automatic electric setting device 50 via the switch 31 and the contact 97.

自動運転モードにてリレー接点97 、98が閉じると
、偏差出力−ΔEが切換器32と接点98を介して手動
用電動設定器70のサーボアンプ71に入力される。
When the relay contacts 97 and 98 close in the automatic operation mode, the deviation output -ΔE is input to the servo amplifier 71 of the manual electric setting device 70 via the switch 32 and the contact 98.

次に上記構成の@作全説明する。いま自動運転モードで
動作していて、偏差1ΔE1が徐々に増加してコンパレ
ータ94の上部しきい値S1を上回ったとする。すると
リレー茎点97 、98が閉じ、偏差出力−ΔEが手動
用を動設定器70に人力さnる。また、このモードでは
偏差出力−ΔEは手動電圧K14整器80に人力てれて
いる。−ΔEの人力に応じて手動用電動設定器70が動
作し、設定電圧i9Fを変化させる。以上の結果、手動
側の制御信号EMが自動側の制御信号EAにほぼ等しく
なるように(偏差1ΔE1がコンパレータ94の下部し
きい値S2よシ小さくなるように)、制御信号EMのレ
ベルが変化する。また同時に、自動側の設定電圧SVに
ほぼ等しくなるよりに手@側の設定電圧SFが調整器れ
ていることになる。
Next, I will explain the entire @work with the above configuration. Assume that the vehicle is currently operating in the automatic operation mode, and the deviation 1ΔE1 gradually increases to exceed the upper threshold value S1 of the comparator 94. Then, the relay stem points 97 and 98 are closed, and the deviation output -ΔE is manually input to the dynamic setting device 70. Further, in this mode, the deviation output -ΔE is manually set by the manual voltage K14 rectifier 80. - The manual electric setting device 70 operates according to the human power of ΔE, and changes the set voltage i9F. As a result of the above, the level of the control signal EM changes so that the manual side control signal EM becomes almost equal to the automatic side control signal EA (so that the deviation 1ΔE1 is smaller than the lower threshold S2 of the comparator 94). do. At the same time, the set voltage SF on the manual side is adjusted to be almost equal to the set voltage SV on the automatic side.

以上のようにしてEM = 8人に制御されると、リレ
ー接点97 、98は開路する。このとき運転モードを
切換えても、前述したショックは発生しない。
When EM=8 people are controlled as described above, relay contacts 97 and 98 are opened. Even if the operating mode is switched at this time, the shock described above does not occur.

手動運転モードにてリレー接点97 、98が閉じると
、上記と同様にして1手動側のEM 、 SFにほぼ等
しくなるように、自動側の8人、Svがル湖整さnる。
When the relay contacts 97 and 98 are closed in the manual operation mode, the 8 persons and Sv on the automatic side are adjusted to be approximately equal to the EM and SF on the manual side in the same manner as described above.

その結果EAζEMになれば、自動運転モードに切換え
てもショックは発生しない。
If the result is EAζEM, no shock will occur even when switching to automatic driving mode.

ところで、偏□差1ΔE1がコンパレータ94の下部し
きい値82以下になり、上部しきい値81以上になるま
ではリレー接点97 、98が開路しており、その状態
では電動設定器50 、70は動作しない。そのため、
サーボモータ52 、72および可変抵抗器53゜73
が必要以上に動くことがなく、無駄な消耗全防止するこ
とができる。
By the way, the relay contacts 97 and 98 are open until the deviation 1ΔE1 becomes less than the lower threshold value 82 of the comparator 94 and becomes more than the upper threshold value 81, and in that state, the electric setting devices 50 and 70 are closed. Do not work. Therefore,
Servo motors 52, 72 and variable resistor 53°73
It does not move more than necessary, and unnecessary wear and tear can be completely prevented.

なお、コンパレータ94の出力が1L#であっても、指
令イど号ADJをオア回路95に与えると、上記の追従
制菌が行なわれ、より正確にE人== EMにすること
ができる。
Note that even if the output of the comparator 94 is 1L#, if the command number ADJ is given to the OR circuit 95, the above-mentioned follow-up sterilization is performed, and it is possible to more accurately set E person==EM.

発明の効果 以上詳細に説明したように、この発明に係る励磁制御装
置によれは、運転モードの切換時に発’i3や4の出力
を急変させることがなく、切換えが円滑に行なえる。ま
た、電動設定器の必要以上の動きを抑えるようになって
いるので、可変抵抗器やサーボモータの消耗が少ない。
Effects of the Invention As described above in detail, the excitation control device according to the present invention allows smooth switching without abruptly changing the outputs of the generators i3 and 4 when switching the operating mode. Additionally, since the electric setting device is prevented from moving more than necessary, there is less wear and tear on the variable resistor and servo motor.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明の一実施例による励@ 1iilJ仰装置の
構成図である。 [0・・・発電機、50・・・自動用電動設定器、60
・・・目切電圧調整器、70・・・手動用電動設定器、
80・・・手動電圧調整器、30・・・切換器、91・
・・差動増幅部、92・・・絶対値回Pl!r、94・
・・コンパレータ、96 、97 、98・・・リレー
コイルと接点%ADJ・・・指令信号。
The figure is a block diagram of an excitation @ 1iilJ elevation device according to an embodiment of the present invention. [0... Generator, 50... Automatic electric setting device, 60
... Cutting voltage regulator, 70... Manual electric setting device,
80... manual voltage regulator, 30... switching device, 91...
...Differential amplifier section, 92...Absolute value times Pl! r, 94・
...Comparator, 96, 97, 98...Relay coil and contact %ADJ...Command signal.

Claims (1)

【特許請求の範囲】[Claims] (1)発電機の出力と自動用電動設定器の設定電圧との
比較信号に基づいて励磁制御信号を発生する自動運転制
御部と、上記発電機への励磁電力と手動用電動設定器の
設定電圧との比較信号に基づいて励磁制御信号を発生す
る手動運転制御部と、上記自動運転制御部の制御信号に
従つて上記励磁電力を制御する自動運転モードか上記手
動運転制御部の制御信号に従つて上記励磁電力を制御す
る手動運転モードかを切換える切換手段と、上記自動運
転制御部の制御信号と上記手動運転制御部の制御信号と
の偏差を検出する差動増幅部と、上記偏差が所定の基準
範囲を外れたときに出力を発するヒステリシスをもつた
コンパレータと、このコンパレータの出力信号または外
部からの指令信号に応答して動作し、自動運転モード時
には上記手動用電動設定器を制御するとともに手動運転
モード時には上記自動用電動設定器を制御して、上記偏
差を減少させる追従制御手段とを備えた励磁制御装置。
(1) An automatic operation control unit that generates an excitation control signal based on a comparison signal between the output of the generator and the set voltage of the automatic electric setting device, and sets the excitation power to the generator and the manual electric setting device. A manual operation control section that generates an excitation control signal based on a comparison signal with the voltage, and an automatic operation mode that controls the excitation power according to a control signal of the automatic operation control section or a control signal of the manual operation control section. Therefore, a switching means for switching between a manual operation mode and a manual operation mode for controlling the excitation power, a differential amplifier for detecting a deviation between a control signal of the automatic operation control section and a control signal of the manual operation control section, and a differential amplifier section for detecting the deviation between the control signal of the automatic operation control section and the control signal of the manual operation control section; A comparator with hysteresis that outputs an output when the output is out of a predetermined reference range, and operates in response to the output signal of this comparator or a command signal from the outside, and controls the manual electric setting device in automatic operation mode. and follow-up control means for controlling the automatic electric setting device to reduce the deviation in the manual operation mode.
JP59213964A 1984-10-12 1984-10-12 Excitation controller Pending JPS6194600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59213964A JPS6194600A (en) 1984-10-12 1984-10-12 Excitation controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59213964A JPS6194600A (en) 1984-10-12 1984-10-12 Excitation controller

Publications (1)

Publication Number Publication Date
JPS6194600A true JPS6194600A (en) 1986-05-13

Family

ID=16647977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59213964A Pending JPS6194600A (en) 1984-10-12 1984-10-12 Excitation controller

Country Status (1)

Country Link
JP (1) JPS6194600A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5631837A (en) * 1979-08-21 1981-03-31 Fiat Spa Car

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5631837A (en) * 1979-08-21 1981-03-31 Fiat Spa Car

Similar Documents

Publication Publication Date Title
US5509504A (en) Velocity regulated, open current loop, variable voltage, variable frequency, linear induction motor drive for an elevator car door
RU2101225C1 (en) Method of control of open circuit current for windings of linear induction motor
JPS6194600A (en) Excitation controller
JPS6131712B2 (en)
JP3432589B2 (en) Elevator door control device
JPH0753430Y2 (en) Power converter controller
ES2120378A1 (en) Time-optimal control of an AC line-driven linear motor elevator door operator
JPS5943918B2 (en) Power factor control device for 3-phase AC induction motor
JPH0753431Y2 (en) Power converter controller
JPH0334320B2 (en)
JPS6142518B2 (en)
JPH02249881A (en) Controller for alternating current elevator
JPS592579A (en) Controller for inverter
SU1003284A1 (en) Reversible thyratron exciter
JPS5759500A (en) Controlling device for commutatorless motor generator
JPS57116579A (en) Control system for semiconductor type ac switch
JPS62201784A (en) Controller for door of elevator
SU1001410A1 (en) Device for regulating induction motor speed
JPH0345630B2 (en)
RU2076449C1 (en) Direct current electric drive
JPH01268477A (en) Overspeed detecting circuit
JPH01243865A (en) Pwm control inverter
JPS5923183B2 (en) Test equipment for current control devices for thyristor converters
JPH0320992B2 (en)
JPS60226787A (en) Controller of ac motor