CH296151A - Automatic electric regulator. - Google Patents
Automatic electric regulator.Info
- Publication number
- CH296151A CH296151A CH296151DA CH296151A CH 296151 A CH296151 A CH 296151A CH 296151D A CH296151D A CH 296151DA CH 296151 A CH296151 A CH 296151A
- Authority
- CH
- Switzerland
- Prior art keywords
- voltage
- variable
- feedback
- automatic electric
- electric regulator
- Prior art date
Links
- 230000001419 dependent effect Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B6/00—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential
- G05B6/02—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential electric
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Eletrric Generators (AREA)
Description
Automatischer elektrischer Regler. Bei automatischen elektrischen Reglern mit Rückführung ist es von grosser Be deutung, dass ihre Rückführ#Lingskraft und Zeitkonstante geeignete Werte haben, um die gewünschte Regelung erhalten zu können. Bisher hat man sich in der Regel mit einer ein für allemal festgelegten Rückführungs charakteristik begnügt, ohne Rücksicht dar auf.', dass die in der Regelungskette enthalte nen Elemente verschiedene Eigenschaften haben können, je nachdem, in welchem Teil des Regelbereiches die Regelung stattfindet.
Dies ist. beispielsweise der Fall bei Span- nungsregehing von elektrischen Generatoren, wo doch deren Zeitkonstante mit zunehmen der Erregung fällt. Uni. eine ideale Regelung in einem solchen Falle zu erhalten, ist es notwendig, dass die Zeitkonstante oder die Rückführungskraft des Reglers in gleichem lfasse sich verändert wie die Zeitlzon,3tante des Erregers. Es gibt aber auch eine grosse Zahl von andern Fällen, in denen eine Änderung der Rückführung wünschenswert oder notwendig ist, beispielsweise bei der Regelung einer Geschwindigkeit, einer Be lastung oder einer Lage.
Gegenstand vorliegender Erfindung ist ein automatischer elektrischer Regler, bei dem mindestens eine Grösse der Rückfüli- rungscharalzteristik vom jeweiligen Wert der zu regelnden Grösse innerhalb des Regel bereiches abhängt, dadurch gekennzeichnet, dass eine mit der zu regelnden Grösse ver- änderliche elektrische Spannung einer derart ausgebildeten Vorrichtung zugeführt wird, dass die Rückführungsimpulse eines durch die genannte Vorrichtung gespiesenen Im pulsgebers sich in Abhängigkeit vom Wert der genannten Spannung verändern.
In der Zeichnung werden drei verschie dene beispielsweise Ausführungsformen des Reglers nach der Erfindung gezeigt. Die Reglergrösse kann selbst dem Gegenstand der Regelung oder lediglich ein Zwischenglied in einer Regelungskette sein.
In den Figuren bezeichnet 1 zwei Leiter, zwischen welchen eine Spannung E vorhan den ist, die sich mit Reglergrösse (Spannung, Strom, Leistung, Geschwindigkeit oder Lage) ändert. In Fig.1 bezeichnet 2 einen spari- n.ungsunabhä.ngigen Widerstand und 3 einen spannungsabhängigen Widerstand, -und die beiden Widerstände sind in Serie an die Leiter 1. angeschlossen.
4 ist ein Transforma tor, dessen Primärwicklung 5 an den span nungsabhängigen Widerstand 3 angeschlos sen ist, während seine Sekundärwicklung an das Rückführungsorgan 7 des Reglers an geschlossen ist. Diese Anordnung gibt eine mit zunehmender Grösse der Spannung F abnehmende Rückführungskraft. Die Zeit konstante der Rückführung ist von der Be messung des Transformators abhängig. Ist dieser so bemessen, dass die Zeitkonstante hauptsächlich von der Ausführung der Sekundärwicklung abhängig ist, wird sie ziemlich unabhängig von der Spannung. Diese Anordnung ist besonders geeignet für Verwendung beim Regeln von Generatoren, die von einem besonderen Erreger erregt werden.
Bei der in Fig. 2 gezeigten Anordnung ist die Primärwicklung 5 des Transformators. an die Leiter 1 über einen spannungsun abhängigen Widerstand 8 und ein mit einem Teil dieses Widerstandes parallel liegendes Stromventil 9 angeschlossen. Bei dieser An ordnung erhält man eine Rückführungskraft, die bei verschiedener Polarität der Spannung E verschieden ausfällt.
Die in Fig. 3 gezeigte Anordnung is@ gleich der in Fig.1 gezeigten mit- dem Unter sehied, dass in den Sekundärkreis des Trans formators 4 ein spannungsabhängiger Wider- stand 11 eingeschaltet ist, wodurch praktiseli nur die Zeitkonstante der Rückführung von Veränderungen der Spannung E abhängin gemacht werden kann.
Automatic electric regulator. In the case of automatic electrical controllers with feedback, it is very important that their feedback force and time constant have suitable values in order to be able to obtain the desired control. So far, one has usually contented oneself with a once and for all fixed feedback characteristic, regardless of the fact that the elements contained in the control chain can have different properties, depending on the part of the control range in which the control takes place.
This is. for example the case with voltage recovery from electrical generators, where their time constant falls as the excitation increases. University. To get an ideal control in such a case, it is necessary that the time constant or the feedback force of the controller change in the same way as the time zone of the exciter. But there are also a large number of other cases in which a change in the feedback is desirable or necessary, for example when regulating a speed, a load or a position.
The subject matter of the present invention is an automatic electrical controller in which at least one variable of the feedback characteristic depends on the respective value of the variable to be controlled within the control range, characterized in that an electrical voltage of a device designed in this way that changes with the variable to be controlled is supplied that the feedback pulses of a pulse generator fed by the device mentioned change as a function of the value of the voltage mentioned.
In the drawing, three different example embodiments of the controller according to the invention are shown. The controller variable can itself be the subject of the control or just an intermediate link in a control chain.
In the figures, 1 denotes two conductors, between which a voltage E is IN ANY that changes with the controller variable (voltage, current, power, speed or position). In FIG. 1, 2 denotes a savings-independent resistor and 3 a voltage-dependent resistor, and the two resistors are connected in series to the conductor 1.
4 is a transformer whose primary winding 5 is ruled out to the voltage-dependent resistor 3, while its secondary winding is closed to the feedback member 7 of the controller. This arrangement gives a return force that decreases as the voltage F increases. The time constant of the return depends on the transformer's size. If this is dimensioned in such a way that the time constant is mainly dependent on the design of the secondary winding, it becomes fairly independent of the voltage. This arrangement is particularly suitable for use in controlling generators excited by a particular exciter.
In the arrangement shown in Fig. 2, the primary winding 5 is the transformer. connected to the conductor 1 via a voltage-independent resistor 8 and a flow valve 9 lying in parallel with a part of this resistor. In this arrangement, a feedback force is obtained that turns out differently for different polarity of the voltage E.
The arrangement shown in FIG. 3 is identical to that shown in FIG. 1, with the difference that a voltage-dependent resistor 11 is switched on in the secondary circuit of the transformer 4, which means that in practice only the time constant for the feedback of changes in the voltage E can be made dependent.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE296151X | 1950-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH296151A true CH296151A (en) | 1954-01-31 |
Family
ID=20307340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH296151D CH296151A (en) | 1950-08-07 | 1951-08-02 | Automatic electric regulator. |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH296151A (en) |
| DE (1) | DE902638C (en) |
| FR (1) | FR1040356A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1074712B (en) * | 1960-02-04 | Rheinhausen Dr.-Ing. GerhardMeinshausen | Follow-up control | |
| DE1077760B (en) * | 1955-04-27 | 1960-03-17 | Licentia Gmbh | Arrangement for limiting the feedback voltage generated by tachometers in control devices |
| DE1080197B (en) * | 1958-04-26 | 1960-04-21 | W H Joens U Co G M B H | Electrical control device with feedback |
| DE1109249B (en) * | 1959-12-04 | 1961-06-22 | Siemens Ag | Position controller with speed and armature current of the servomotor as auxiliary controlled variables |
| DE1129596B (en) * | 1955-03-24 | 1962-05-17 | United Aircraft Corp | Electrical control device with a feedback |
| DE1141007B (en) * | 1960-09-13 | 1962-12-13 | Siemens Ag | Electrical controller for third or higher order controlled systems or systems with dead time |
| DE1263148B (en) * | 1961-02-28 | 1968-03-14 | Standard Elektrik Lorenz Ag | Electronic regulator |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1100770B (en) * | 1953-12-14 | 1961-03-02 | Gen Electric | Electric regulator |
| DE1116774B (en) * | 1954-04-20 | 1961-11-09 | Licentia Gmbh | Setpoint generator consisting of a magnetic amplifier |
| DE1268255B (en) * | 1962-01-20 | 1968-05-16 | Kabushikikaisha Tokyo Keiki Se | Electric control system |
| DE1226119B (en) * | 1962-02-07 | 1966-10-06 | Continental Elektro Ind Ag | Device for regulating the pressure of the heating medium in steam generators |
| DE1290433B (en) * | 1962-11-13 | 1969-03-06 | Bodenseewerk Perkin Elmer Co | Flight controller with position and speed feedback |
| DE2017791C3 (en) * | 1970-04-08 | 1981-10-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Control device for a converter drive with torque reversal in a counter-parallel circuit that is free of circulating current |
-
1951
- 1951-08-01 DE DEA13810A patent/DE902638C/en not_active Expired
- 1951-08-02 CH CH296151D patent/CH296151A/en unknown
- 1951-08-06 FR FR1040356D patent/FR1040356A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1074712B (en) * | 1960-02-04 | Rheinhausen Dr.-Ing. GerhardMeinshausen | Follow-up control | |
| DE1129596B (en) * | 1955-03-24 | 1962-05-17 | United Aircraft Corp | Electrical control device with a feedback |
| DE1077760B (en) * | 1955-04-27 | 1960-03-17 | Licentia Gmbh | Arrangement for limiting the feedback voltage generated by tachometers in control devices |
| DE1080197B (en) * | 1958-04-26 | 1960-04-21 | W H Joens U Co G M B H | Electrical control device with feedback |
| DE1109249B (en) * | 1959-12-04 | 1961-06-22 | Siemens Ag | Position controller with speed and armature current of the servomotor as auxiliary controlled variables |
| DE1141007B (en) * | 1960-09-13 | 1962-12-13 | Siemens Ag | Electrical controller for third or higher order controlled systems or systems with dead time |
| DE1263148B (en) * | 1961-02-28 | 1968-03-14 | Standard Elektrik Lorenz Ag | Electronic regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1040356A (en) | 1953-10-14 |
| DE902638C (en) | 1954-01-25 |
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