DE1801066C3 - Arrangement for fine control of the voltage of a load-dependent synchronous machine excited by a rectifier - Google Patents
Arrangement for fine control of the voltage of a load-dependent synchronous machine excited by a rectifierInfo
- Publication number
- DE1801066C3 DE1801066C3 DE19681801066 DE1801066A DE1801066C3 DE 1801066 C3 DE1801066 C3 DE 1801066C3 DE 19681801066 DE19681801066 DE 19681801066 DE 1801066 A DE1801066 A DE 1801066A DE 1801066 C3 DE1801066 C3 DE 1801066C3
- Authority
- DE
- Germany
- Prior art keywords
- current
- rectifier
- circuit
- parallel
- winding
- 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
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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/38—Self-excitation by current derived from rectification of both output voltage and output current of generator
-
- 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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements 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
- H02P9/305—Arrangements 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 controlling voltage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Rectifiers (AREA)
Description
schrift 3 388 315, bei einer über Gleichrichter last- und steile Stromanstieg die Thyristoren gefährdendocument 3 388 315, in the event of a load and steep current increase via rectifier endanger the thyristors
abhängig erregten Synchronmaschine zusätzlich würde. Deshalb ist im Paralleikreis zur Verringerung ,dependent excited synchronous machine would additionally. Therefore, in the parallel circle for reduction,
eine Anordnung zur Feinregulierung der Spannung 40 des Stromanstieges eine Drosselspule vorgesehen, deran arrangement for fine regulation of the voltage 40 of the current rise a choke coil is provided, the
vorzusehen, indem für diese Feinregulierung auf der eine Freilaufzelle gegenparallel geschaltet ist. Erstto be provided in that a free-wheeling cell is connected in counter-parallel for this fine adjustment. First
Wechselstromseite des Gleichrichters ein Teil des Er- diese Freilaufzelle ermöglicht die richtige SteuerungAC side of the rectifier is part of the Er- this freewheeling cell enables correct control
regerstromes oder der ganze Erregerstrom in einen des Parallelkreises. Da sich der Strom über sieexcitation current or the entire excitation current in one of the parallel circuit. As the current runs over them
von Thyristoren gesteuerten Parallelkreis geleitet schließen kann, wenn die Spannung an dem bisherdirected by thyristors controlled parallel circuit can close if the voltage on the previously
wird. Bei der bekannten Anordnung enthält dieser 45 stromführenden Thyristor negativ geworden ist, wirdwill. In the known arrangement, this 45 current-carrying thyristor has become negative
Parallelkreis eine nur eine Wicklung aufweisende dieser Thyristor sofort gelöscht, obwohl der Strom imA parallel circuit with only one winding of this thyristor is immediately extinguished, although the current in the
Drosselspule mit kleinem Wirkwiderstand, die im Parallelkreis durch die Drosselspule für eine gewisseChoke coil with a small effective resistance, which in the parallel circuit through the choke coil for a certain
Gleichstromkreis der den Prallelkreis steuernden Zeitdauer — die groß ist gegenüber der einer HaIb-DC circuit of the duration controlling the parallel circuit - which is large compared to that of a half-
Thyristoren und in Reihe zu einer der beiden Klem- schwingung der Spannung am Thyristor — als ein-Thyristors and in series to one of the two clamping oscillation of the voltage on the thyristor - as one
men (+ oder -) des die Erregerwicklung speisenden 5o geprägt gelten kann. Auf diese Weise kann diemen (+ or -) of the 5o feeding the excitation winding can apply. In this way, the
Gleichrichters liegt. Eine derartige Anordnung hat Spannung der Maschine einwandfrei feingeregeltRectifier lies. Such an arrangement has perfectly fine-tuned the voltage of the machine
den Vorteil, daß der Parallelkreis fast verlustfrei ar- werden.the advantage that the parallel circuit will be almost loss-free.
beitet, da die Drosselspule nur einen kleinen Wirk- Statt die Synchronmaschine unmittelbar über widerstand enthält. Andererseits könnte aber bei ruhende Gleichrichter und Schleifringe zu erregen, dieser bekannten Anordnung, bei der die Synchron- 55 kann man sie auch bürstenlos über umlaufende maschine in Spannungsadditionsschaltung erregt ist. Gleichrichter und eine Wechselstromerregermaschine der Paralleikreis auch ohne Drosselspule kurzge- erregen, deren Ständerwicklung von dem Gleichschlossen sein, weil sowohl der Strom in der Erreger- richter gespeist wird.works, because the choke coil only has a small active instead of the synchronous machine directly over contains resistance. On the other hand, the rectifier and slip rings at rest could excite, this known arrangement, in which the synchronous 55 you can also use them brushless over rotating machine is energized in voltage addition circuit. Rectifier and an alternating current exciter The parallel circuit can be briefly excited even without a choke coil, its stator winding from the keyed alike because both the current in the exciter is fed.
wicklung als auch der über den Gleichrichter gleich- Im folgenden sei die Erfindung an Hand des in der
gerichtete Strom der Stromwandler mit Luftspalt- 60 Figur dargestellten Ausführungsbeispiels erläutert,
gegenüber der Zeitdauer einer Halbschwingung von Eine Synchronmaschine 1 wird über einen Gleichspannung
und Strom an den Thyristoren als einge- richter 2, einen Stromwandler 3, eine Drosselspule 4
prägte Ströme wirken, so daß sich über den Parallel- und einen Kondensators mit einem lastunabhängigen
kreis nur der Unterschied zwischen den beiden und einem lastabhängigen Stromteil in Stromaddi-Strömen
schließen kann, unabhängig davon, ob dieser 65 tionsschaltung erregt. In der Figur sind die beiden Erst-Parallelkreis
eine Drosselspule enthält oder unmittel- wicklungen des Stromwandlers 3 einphasig dargebar
kurzgeschlossen ist. Die Drosselspule verhindert stellt, die Zweitwicklung dagegen dreiphasig. Die
sogar, daß die Thyristoren rechtzeitig gelöscht Zweitwicklung weist eine Sparschaltung auf mit einerwinding as well as the rectifier- In the following the invention will be explained on the basis of the directed current of the current transformer with air gap- 60 figure illustrated embodiment,
compared to the duration of a half-oscillation of a synchronous machine 1 is a direct voltage and current to the thyristors as a set-up 2, a current transformer 3, a choke coil 4 shaped currents act, so that via the parallel and a capacitor with a load-independent circuit only the difference between the two and a load-dependent current component in Stromaddi currents can be concluded, regardless of whether this 65 energized tion circuit. In the figure, the two first parallel circuits contain a choke coil or direct windings of the current transformer 3 are short-circuited in a single-phase manner. The choke coil prevents it, the secondary winding, on the other hand, three-phase. The even that the thyristors deleted in time second winding has an economy circuit with a
niedrigeren Spannung für den Gleichrichter 2 und einer höheren für den Parallelkreis. Dieser wird aus drei Thyristoren 6,7,8 und einer Drosselspule 9 gebildet Die Kathoden der drei Thyristoren 6,7,8 sind zu einem Stempunkt vereinigt und über die Drosselspule 9 mit dem Minuspol des Gleichrichters! verbunden. Zu der Wicklung der Drosselspule 9 ist eine Freilaufzclle 10 gegenparallel geschaltet. Sie ermöglicht das Abklingen des Flusses in der Drosselspule 9 unabhängig von der Sperrung der Thyristoren 6,7,8, Bei Freigabe der Thyristoren fi. 7,8 entsteht ein kurzgeschlossener Parallelkreis zur Erregerwicklung, und die Synchronmaschine 1 kunn völlig spannungslos werden, wenn der Parallelkreis genügend lange geschlossen bleibt. Die Drosselspule 9 in der Verbindungsleitung zwischen dem Gleichrichter 2 und den Thyristoren 6,7,8 verhindert dabei zuverlässig einen unerwünscht großen und steilen Stromanstieg, der die Thyristoren gefährden könnte.lower voltage for rectifier 2 and a higher voltage for the parallel circuit. This one is going out three thyristors 6,7,8 and a choke coil 9 formed The cathodes of the three thyristors 6,7,8 are combined to a star point and via the choke coil 9 with the negative pole of the rectifier! connected. A freewheeling cell 10 is connected in opposite-parallel to the winding of the choke coil 9. It allows the flow to decay in the choke coil 9 regardless of the blocking of the Thyristors 6,7,8, When the thyristors are enabled fi. 7.8 a short-circuited parallel circuit to the field winding is created, and the synchronous machine 1 kunn completely de-energized when the parallel circuit remains closed for a long enough time. The choke coil 9 in the connecting line between the rectifier 2 and the thyristors 6,7,8 prevented reliably an undesirably large and steep rise in current that endangers the thyristors could.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681801066 DE1801066C3 (en) | 1968-10-01 | 1968-10-01 | Arrangement for fine control of the voltage of a load-dependent synchronous machine excited by a rectifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681801066 DE1801066C3 (en) | 1968-10-01 | 1968-10-01 | Arrangement for fine control of the voltage of a load-dependent synchronous machine excited by a rectifier |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1801066A1 DE1801066A1 (en) | 1970-06-25 |
DE1801066B2 DE1801066B2 (en) | 1973-05-17 |
DE1801066C3 true DE1801066C3 (en) | 1973-12-06 |
Family
ID=5709565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681801066 Expired DE1801066C3 (en) | 1968-10-01 | 1968-10-01 | Arrangement for fine control of the voltage of a load-dependent synchronous machine excited by a rectifier |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1801066C3 (en) |
-
1968
- 1968-10-01 DE DE19681801066 patent/DE1801066C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1801066B2 (en) | 1973-05-17 |
DE1801066A1 (en) | 1970-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3310898A1 (en) | RECOVERY RECTIFIERS | |
DE602766C (en) | Device for regulating three-phase motors, especially with short-circuit rotors | |
DE1613549C3 (en) | Control device for controllable rectifiers | |
DE2233152A1 (en) | SHORT-CIRCUIT CIRCUIT FOR POWER CIRCUITS | |
DE1801066C3 (en) | Arrangement for fine control of the voltage of a load-dependent synchronous machine excited by a rectifier | |
DE2142982A1 (en) | ARRANGEMENT FOR RAPID EXCITATION OF BRUSHLESS SYNCHRONOUS MACHINES THAT ARE EXCITED BY ROTATING UNCONTROLLED RECTIFIERS | |
DE2839712C3 (en) | Circuit with chopper function for a brushless DC motor | |
DE2146064A1 (en) | ARRANGEMENT TO AVOID THE RATTLING AND SCRUBBING OF SLIP RING BRUSHES FOR DIRECT CURRENT WHICH ARE TEMPORARILY OPERATED WITHOUT POWER | |
DE1149099B (en) | Exciter arrangement for electrical machines | |
DE2002943A1 (en) | Short-circuit protection device | |
DE3005156C2 (en) | Rectifier arrangement in three-phase bridge circuit | |
DE1538150A1 (en) | Converter machine for controllable speeds | |
AT202233B (en) | Device for braking a slip ring asynchronous motor | |
DE973170C (en) | Process for current commutation at standstill and at low speeds of converter machines | |
AT226330B (en) | De-excitation arrangement | |
DE639960C (en) | Arrangement for the operation of converting devices working as rectifiers or inverters | |
DE2158531C2 (en) | Semiconductor controlled rectifier inverter cct. - has commutation capacitor in series with primary coil of transformer | |
DE1563728C3 (en) | Arrangement for supplying a network with alternating current of constant voltage and constant frequency, in particular for supplying an alternating current on-board network on vehicles, ships and aircraft | |
DE1638413C3 (en) | Internal pole auxiliary exciter with permanent magnet excitation for a brushless synchronous main generator | |
DE1463606A1 (en) | Arrangement for fine control of synchronous generators | |
DE2247867C3 (en) | Circuit arrangement for speed control of an AC motor | |
DE2026856C3 (en) | Device for detecting the current zero crossing in a thyristor rectifier circuit | |
DE1563729C (en) | Synchronous reactive power machine with load-dependent rectifier excitation | |
DE2342718C3 (en) | Synchronous machine | |
DE680297C (en) | Device for the automatic maintenance of an alternating voltage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 |