JPS6231593B2 - - Google Patents
Info
- Publication number
- JPS6231593B2 JPS6231593B2 JP53112935A JP11293578A JPS6231593B2 JP S6231593 B2 JPS6231593 B2 JP S6231593B2 JP 53112935 A JP53112935 A JP 53112935A JP 11293578 A JP11293578 A JP 11293578A JP S6231593 B2 JPS6231593 B2 JP S6231593B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- armature
- thyristor
- field
- control
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Control Of Direct Current Motors (AREA)
Description
【発明の詳細な説明】
この発明は、界磁制御付サイリスタレオナード
装置における界磁制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a field control device in a thyristor Leonard device with field control.
第１図は従来の界磁制御付サイリスタレオナー
ド装置を示したもので、１はサイリスタレオナー
ド装置及び２は界磁制御装置である。３は交流電
源、４は直流電動機、５はこの直流電動機の分巻
界磁コイル、６は直流電動機４に軸結された速度
発電機、７は速度設定器である。８は速度制御用
差動増巾器で速度発電機６の出力を速度設定器７
による速度設定電圧と比較し両者の差信号を電流
制御用差動増巾器９に送出する。差動増巾器９は
また主回路の負荷電流を、電流変成器１１及び主
回路電流検出器１０を介してフイードバツク入力
されており、上記差信号に対応した信号を点弧パ
ルス発生器１２に供給する。これによつて、交流
電源３を可変電圧直流電源に変換する主回路サイ
リスタ変換装置例えばサイリスタブリツジ１３に
より、上記差信号に対応した電圧が出力され、直
流電動機４の駆動トルクが負荷トルクとバランス
する。１４は界磁制御による定出力制御時の直流
電動機の電機子電圧設定器、１５は界磁々束制御
用差動増巾器で、電機子電圧検出器１６により適
当レベルに変換された電機子電圧を電機子電圧設
定器１４による電機子設定電圧と比較し、その差
信号を界磁電流制御用差動増巾器１７に送出す
る。界磁電流制御用差動増巾器１７は、界磁電流
Ｉが界磁電流検出器１８及び関数発生器１９を
介してフイードバツク入力されており、上記電機
子電圧が上記電機子設定電圧より低い場合には交
流電源を可変電圧直流電源に変換するサイリスタ
変換装置例えばサイリスタブリツジ２１の出力従
つて界磁電流Ｉを増加させるように、又逆の場
合には界磁電流Ｉを減少させるように点弧パル
ス発生器２０を作動させる。界磁電流制御用差動
増巾器１７は通常上限リミツタが設けられてい
る。 FIG. 1 shows a conventional thyristor Leonard device with field control, where 1 is a thyristor Leonard device and 2 is a field control device. 3 is an AC power supply, 4 is a DC motor, 5 is a shunt field coil of this DC motor, 6 is a speed generator connected to the DC motor 4, and 7 is a speed setting device. 8 is a differential amplifier for speed control, and the output of the speed generator 6 is connected to the speed setting device 7.
A difference signal between the two is sent to the current control differential amplifier 9. The differential amplifier 9 also receives the load current of the main circuit as a feedback input via the current transformer 11 and the main circuit current detector 10, and sends a signal corresponding to the difference signal to the ignition pulse generator 12. supply As a result, the main circuit thyristor conversion device, for example, the thyristor bridge 13, which converts the AC power supply 3 into a variable voltage DC power supply, outputs a voltage corresponding to the difference signal, and the drive torque of the DC motor 4 is balanced with the load torque. do. 14 is an armature voltage setting device for the DC motor during constant output control by field control, and 15 is a differential amplifier for field flux control, which detects the armature voltage converted to an appropriate level by the armature voltage detector 16. It is compared with the armature set voltage by the armature voltage setter 14, and the difference signal is sent to the field current control differential amplifier 17. The field current control differential amplifier 17 receives the field current I as a feedback input via the field current detector 18 and the function generator 19, and the armature voltage is lower than the armature setting voltage. In this case, a thyristor conversion device for converting an alternating current power supply into a variable voltage direct current power supply, for example, increases the output of the thyristor bridge 21 and hence the field current I, and in the opposite case, decreases the field current I. Activate the ignition pulse generator 20. The field current control differential amplifier 17 is normally provided with an upper limiter.
２２は分流器、２３は界磁用交流電源、２４は
リアクトル及び２５はしや断器である。 22 is a shunt, 23 is a field AC power supply, 24 is a reactor, and 25 is a breaker.
この従来装置においては、電機子電圧が上記電
機子設定電圧以下にある場合には界磁電流制御用
差動増巾器１７の出力が上限リミツタレベルに維
持され、サイリスタブリツヂ１３による直流電動
機の電機子電圧の電圧制御によつて直流電動機４
の速度制御が行われる。サイリスタ変換装置１３
の出力電圧が、前記速度設定電圧の増加によつて
上記電機子設定電圧を超える値になると、界磁電
流制御用差動増巾器１７の出力により点弧パルス
発生器２０従つてサイリスタブリツヂ２１が界磁
電流を減少するよう制御され、電機子電圧を上記
電機子設定電圧に保ちながら、界磁弱めによる増
速が行われ、このようにして直流電動機４が定出
力制御される。 In this conventional device, when the armature voltage is below the armature setting voltage, the output of the field current control differential amplifier 17 is maintained at the upper limiter level, and the thyristor bridge 13 controls the DC motor. DC motor 4 by voltage control of armature voltage
Speed control is performed. Thyristor conversion device 13
When the output voltage exceeds the armature setting voltage due to an increase in the speed setting voltage, the output of the field current control differential amplifier 17 activates the ignition pulse generator 20 and the thyristor breaker. 21 is controlled to reduce the field current, and while the armature voltage is maintained at the armature set voltage, the speed is increased by weakening the field, and in this way, the DC motor 4 is controlled at a constant output.
上記から明らかな如く、この従来の界磁制御装
置２の電機子設定電圧は固定された一定電圧であ
る為、直流電動機４としては、交流電源３の電圧
変動やサイリスタブリツジ１３のサイリスタの転
流重なり角などを考慮して十分な余裕をもつてそ
の定格電圧が設定された直流電動機を使用する必
要があり、この結果定格電流が大きくなつて主回
路関係の機器のコストも上昇し装置全体のコスト
がそれだけ高くなるという欠点があつた。 As is clear from the above, since the armature setting voltage of this conventional field control device 2 is a fixed constant voltage, the DC motor 4 is affected by voltage fluctuations of the AC power supply 3 and commutation overlap of the thyristors of the thyristor bridge 13. It is necessary to use a DC motor whose rated voltage has been set with sufficient margin in consideration of angles, etc., and as a result, the rated current increases, which increases the cost of main circuit related equipment and increases the cost of the entire device. The disadvantage was that it was that expensive.
この発明は、上記した従来のものゝ欠点を除去
する為になされたもので、定出力制御時の界磁制
御装置の電機子設定電圧を、主回路電源電圧に比
例して変化させることにより、直流電動機の定格
を電源条件を考慮することなく定めることを可能
となし、装置全体を安価にすることができる界磁
制御付サイリスタレオナード装置を提供すること
を目的とする。 This invention was made in order to eliminate the drawbacks of the conventional ones described above, and by changing the armature setting voltage of the field control device during constant output control in proportion to the main circuit power supply voltage, the DC motor It is an object of the present invention to provide a thyristor Leonard device with field control, which enables the rating of the device to be determined without considering power supply conditions, and which can reduce the cost of the entire device.
以下、この発明の一実施例を図について説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
第２図において、２６は、界磁制御装置２の電
機子電圧設定用の電源で、サイリスタブリツジ１
３、リアクトル２４からなる主回路の両者間に接
続された変圧器２７と該変圧器の２次側に接続さ
れる整流器２８から成り、その出力は界磁制御に
よる定出力制御時の電機子電圧設定器１４の電源
として使用される。他の構成は第１図の場合と同
様であるので、その説明は省略する。 In FIG. 2, 26 is a power supply for setting the armature voltage of the field control device 2, and the thyristor bridge 1
3. Consists of a transformer 27 connected between both sides of the main circuit consisting of a reactor 24 and a rectifier 28 connected to the secondary side of the transformer, whose output is set by an armature voltage setting device during constant output control by field control. It is used as a power source for 14. Since the other configurations are the same as those shown in FIG. 1, their explanation will be omitted.
以上の構成においては、サイリスタブリツジ１
３の交流側電圧が変圧器２７によつて適当レベル
に降圧され、これが整流器２８を介して電機子電
圧設定器即ち抵抗器１４に供給されるから、サイ
リスタブリツジ１３の交流側電圧が降下すると電
機子電圧設定器１４から取出される電機子設定電
圧も、これに比例して降下するから、何ら問題な
く前記した界磁制御による定出力制御を行うこと
ができる。 In the above configuration, the thyristor bridge 1
The AC side voltage of thyristor bridge 13 is stepped down to an appropriate level by the transformer 27, and is supplied to the armature voltage setting device, that is, the resistor 14 via the rectifier 28, so that when the AC side voltage of the thyristor bridge 13 drops, Since the armature setting voltage taken out from the armature voltage setting device 14 also decreases in proportion to this, the constant output control by the field control described above can be performed without any problem.
定出力制御時に主回路交流側電圧が降下した際
には、直流電動機４はその定格電圧以下の電圧で
運転され、また定格負荷時には、その時の電機子
電圧と上記定格電圧の逆比に比例して負荷電流が
増大するが一般にこの増加量は小さく、いずれの
場合にも実用上の支障はない。なお、他の負荷で
ある例えば誘導電動機の起動・停止に伴う主回路
電源電圧の瞬時変動が大きい船舶等の自家発電設
備における電源系統の場合は、電機子電圧設定用
電源２６の回路にフイルターを挿入して電圧変動
の影響を抑制する。 When the main circuit AC side voltage drops during constant output control, the DC motor 4 is operated at a voltage lower than its rated voltage, and at rated load, the voltage is proportional to the inverse ratio of the armature voltage at that time and the above rated voltage. Although the load current increases, the amount of increase is generally small, and there is no practical problem in either case. In addition, in the case of a power supply system for a private power generation facility such as a ship, where the main circuit power supply voltage fluctuates widely due to the start/stop of another load, for example, an induction motor, a filter may be installed in the circuit of the armature voltage setting power supply 26. Inserted to suppress the effects of voltage fluctuations.
この実施例では、電機子電圧設定用電源２６の
電圧が電機子電圧設定器１４に直接加えられてい
るが、電機子電圧設定器１４は従来通り定電圧源
に接続しておき、電機子電圧設定器１４と界磁々
束制御用差動増巾器１５との間に信号リミツト装
置（図示しない）を挿入し、このリミツト信号と
して上記電機子電圧設定用電源２６の整流器２８
出力を用いることによつても、同一作用を行わせ
ることができる。 In this embodiment, the voltage of the armature voltage setting power supply 26 is directly applied to the armature voltage setting device 14, but the armature voltage setting device 14 is connected to a constant voltage source as before, and the armature voltage setting device 14 is connected to a constant voltage source as before. A signal limiter (not shown) is inserted between the setting device 14 and the differential amplifier 15 for field flux control, and the rectifier 28 of the armature voltage setting power supply 26 is used as this limit signal.
The same effect can be achieved by using the output.
また、この実施例では、電機子電圧設定用電源
２６の入力をサイリスタブリツジ１３の交流側よ
り取り出しているが、交流電源３から取り出した
場合には、この電源の電圧変動分に対してのみ電
機子設定電圧が変化するが、この場合にも充分な
効果を得ることができる。 Further, in this embodiment, the input of the armature voltage setting power supply 26 is taken out from the AC side of the thyristor bridge 13, but when taken out from the AC power supply 3, only the voltage fluctuation of this power supply is Although the armature setting voltage changes, sufficient effects can be obtained in this case as well.
さらにまた、サイリスタレオナード装置１が、
サイリスタブリツジ１３を逆並列接続したインバ
ータ運転つきのものである場合に定出力制御時イ
ンバータ運転中の転流余裕角が自動的に確保され
る効果がある。 Furthermore, the thyristor Leonard device 1
When the thyristor bridges 13 are connected in antiparallel and have inverter operation, there is an effect that the commutation margin angle during inverter operation is automatically ensured during constant output control.
以上の如く、この発明は、界磁制御付サイリス
タレオナード装置において、定出力制御時の界磁
制御装置の電機子設定電圧を、その主回路の交流
電圧平均値に比例して変化させるようにしたから
直流電動機の定格電圧を電源条件を考慮すること
なく決定することができ、電源電圧の変動分やサ
イリスタの転流重なり角など見込む必要がないか
ら、その分だけ上記定格電圧を高めることができ
る。 As described above, in the thyristor Leonard device with field control, the armature setting voltage of the field control device during constant output control is changed in proportion to the average AC voltage of the main circuit, so that the DC motor The rated voltage can be determined without considering the power supply conditions, and there is no need to take into account fluctuations in the power supply voltage or commutation overlap angles of the thyristors, so the rated voltage can be increased by that amount.
従つて、この発明によれば、出力定格が同一で
ある場合従来に比し定格電流を下げることができ
るから、主回路電路や主回路に挿入される器具の
定格電流も小さくて済み、装置全体のコストを従
来に比し安価にすることができる。 Therefore, according to the present invention, when the output rating is the same, the rated current can be lowered compared to the conventional one, so the rated current of the main circuit electric path and the equipment inserted into the main circuit can be lowered, and the overall equipment The cost can be reduced compared to the conventional method.
第１図は界磁制御付サイリスタレオナード装置
の従来例を示すブロツク図、第２図はこの発明に
よる界磁制御付サイリスタレオナード装置の実施
例のブロツク図である。
図において、２は界磁制御装置、１４は電機子
電圧設定器、２７は変圧器及び２８は整流器であ
る。なお、図中、同一符号は同一又は相当部分を
示す。
FIG. 1 is a block diagram showing a conventional example of a thyristor Leonard device with field control, and FIG. 2 is a block diagram of an embodiment of the thyristor Leonard device with field control according to the present invention. In the figure, 2 is a field control device, 14 is an armature voltage setting device, 27 is a transformer, and 28 is a rectifier. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
電圧を設定する電機子電圧設定器、上記直流電動
機の電機子電圧を検出する電機子電圧検出器、上
記電機子電圧設定器による電機子設定電圧と上記
電機子電圧検出器で検出された電機子電圧とを比
較しその差信号を送出する界磁磁束制御用差動増
巾器、上記直流電動機の界磁電流を供給するサイ
リスタ変換装置、上記直流電動機の界磁電流を検
出する界磁電流検出器、上記界磁磁束制御用差動
増巾器の出力と上記界磁電流検出器の出力との差
に応じ上記界磁電流を変化させるよう上記サイリ
スタ変換装置を制御する信号を送出する界磁電流
制御用差動増巾器を有して成る界磁制御装置を備
えた界磁制御付サイリスタレオナード装置におい
て、交流電源と上記直流電動機との間にあつて該
交流電源を可変電圧直流源に変換するサイリスタ
変換装置の交流側入力を入力とする電機子電圧設
定用電源を設け、上記サイリスタ変換装置の交流
側電圧変動に伴う上記電機子電圧設定用電源の出
力変化に応じて上記電機子電圧設定器の設定電圧
を変化させことを特徴とする界磁制御付サイリス
タレオナード装置。1. An armature voltage setting device that sets the armature voltage of the DC motor during control by field control, an armature voltage detector that detects the armature voltage of the DC motor, and the armature setting voltage by the armature voltage setting device and the above. A differential amplifier for field magnetic flux control that compares the armature voltage detected by the armature voltage detector and sends out a difference signal; a thyristor converter that supplies the field current of the DC motor; and the DC motor. a field current detector for detecting a field current; In a thyristor Leonard device with field control equipped with a field control device comprising a field current control differential amplifier that sends out a signal for controlling a conversion device, the thyristor is located between an AC power source and the DC motor, An armature voltage setting power source is provided that receives the AC side input of a thyristor conversion device that converts the power source into a variable voltage DC source, and the output of the armature voltage setting power source changes with fluctuations in the AC side voltage of the thyristor conversion device. A thyristor Leonard device with field control, characterized in that the set voltage of the armature voltage setter is changed in accordance with the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11293578A JPS5541147A (en) | 1978-09-14 | 1978-09-14 | Thyristor leonard device with field controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11293578A JPS5541147A (en) | 1978-09-14 | 1978-09-14 | Thyristor leonard device with field controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5541147A JPS5541147A (en) | 1980-03-22 |
| JPS6231593B2 true JPS6231593B2 (en) | 1987-07-09 |
Family
ID=14599166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11293578A Granted JPS5541147A (en) | 1978-09-14 | 1978-09-14 | Thyristor leonard device with field controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5541147A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746217Y2 (en) * | 1992-02-03 | 1995-10-25 | 荘一郎 西澤 | Carpet fittings |
-
1978
- 1978-09-14 JP JP11293578A patent/JPS5541147A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5541147A (en) | 1980-03-22 |
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