DE679438C - Switching arrangement for compound motors of electric traction vehicles - Google Patents
Switching arrangement for compound motors of electric traction vehiclesInfo
- Publication number
- DE679438C DE679438C DEM136904D DEM0136904D DE679438C DE 679438 C DE679438 C DE 679438C DE M136904 D DEM136904 D DE M136904D DE M0136904 D DEM0136904 D DE M0136904D DE 679438 C DE679438 C DE 679438C
- Authority
- DE
- Germany
- Prior art keywords
- reversing
- switching arrangement
- traction vehicles
- electric traction
- compound
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/02—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit
- B60L15/04—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit using dc
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
Schaltanordnung für Verbundmotoren elektrischer Triebfahrzeuge Elektrische Triebfahrzeuge werden oft mit Verbundmotoren ausgerüstet, was eine sehr einfache Regelung der Geschwindigkeit mit nur einem Organ gestattet und außerdem ohne weiteres Nutzbremsung ermöglicht. Der Verbundmotor hat zwei Feldwicklungen, eine im Ankerstromkreis liegende Reihenschlußwickr lung und eine vom Ankerstrom nicht durchflossene Wicklung. Bei Rückwärtsfahrt wird der Anker umgeschaltet, so daß der Motor auch rückwärts als Verbundmotor läuft. Diese bekannte Schaltung bedingt einen Wendeschalter, der für den vollen Ankerstrom bemessen und für die Ankerspannung isoliert sein muß.Switching arrangement for compound motors of electric traction vehicles Electric Locomotives are often equipped with compound engines, which is a very simple one Regulation of the speed with only one organ is permitted and furthermore easily Regenerative braking enables. The compound motor has two field windings, one in the armature circuit horizontal series winding and one winding through which the armature current does not flow. When driving backwards, the armature is switched so that the motor also reverses runs as a compound engine. This known circuit requires a reversing switch that dimensioned for the full armature current and must be insulated for the armature voltage.
Es sind Schaltungen mit Gegenverbundmotoren bekanntgeworden, bei denen bei Rückwärtsfahrt die bei Vorwärtsfahrt überwiegende Hauptstromfeldwicklung kurzgeschlossen wird. Da die noch wirksame Wicklung ein umgekehrtes Feld erzeugt, läuft der Motor rückwärts. An Stelle des Wendeschalters tritt ein einfacher Kurzschlußschalter; der Aufwand an Schaltgeräten ist nur noch halb so groß wie bei der normalen Schaltung. Als Nachteil dieser Schaltungen ist die nur sehr kleine Anfahrzugkraft bei Rückwärtsfahrt anzusehen.There are circuits with counter composite motors become known in which When driving backwards, the main current field winding, which is predominant when driving forwards, is short-circuited will. Since the winding that is still in effect generates a reversed field, the motor runs backward. Instead of the reversing switch, there is a simple short-circuit switch; the cost of switching devices is only half that of normal switching. The disadvantage of these circuits is the very low starting tractive effort when reversing to watch.
Bedeutend günstigere Verhältnisse erreicht man bezüglich Anfahrzugkraft bei Rückwärtsfahrt und Aufwand an Schaltgeräten, wenn gemäß der Erfindung beim Verbundmotor für die Rückwärtsfahrt nur die nicht vom Ankerstrom durchflossene Feldwicklung gewendet wird, so daß der Motor rückwärts als Gegenverbundmotor läuft. Da der Wendeschalter und die zu ihm führenden. Leitungen nur den Erregerstrom führen, so können sie im Vergleich zu den bekannten Schaltungen sehr klein bemessen werden. Diese Schaltung eignet sich für elektrische Triebfahrzeuge, die vorwiegend vorwärts fahren, z. B. Oberleitungskraftwagen oder batteriegespeiste Straßenfahrzeuge und Straßenbahnwagen mit nur einem Führerstand.Significantly more favorable conditions are achieved with regard to starting tractive effort when reversing and expenditure on switching devices, if according to the invention in the compound motor for reverse travel only the field winding through which the armature current does not flow is turned so that the motor runs backwards as a countercompound motor. Since the reversing switch and those leading to him. Lines only carry the excitation current, so they can be im Be dimensioned very small compared to the known circuits. This circuit is suitable for electric traction vehicles that mainly drive forward, e.g. B. Catenary vehicles or battery-powered road vehicles and tram cars with only one driver's cab.
Beim Rückwärtsfahren muß unbedingt dafür gesorgt werden, daß die im Ankerstromkreis liegende Erregerwicklung nicht mehr Amperewindungen aufweist als die nicht im Ankerstromkreis liegende Erregerwicklung, weil sonst das resultierende Hauptfeld falsch gerichtet wäre. Dies kann dadurch erreicht werden, daß Mittel vorgesehen sind, die bei Rückwärtsfahrt verhindern, daß die nicht im Ankerstromkreis liegende Erregung ein bestimmtes Maß unterschreitet. Die Feldschwächung darf im Gegensatz zur Vorwärtsfahrt nur klein sein. In den meisten Fällen wird es zweckmäßig sein, bei Rückwärtsfahrt die Erregung immer voll eingeschaltet zu lassen, dabei Rückwärtsfahrt ohnehin nur mit kleiner Geschwindigkeit gefahren wird.When reversing, it is essential to ensure that the im The excitation winding lying on the armature circuit does not have more ampere-turns than the excitation winding not in the armature circuit, otherwise the resulting Main field would be wrongly directed. This can be achieved by providing means are, which prevent when reversing that the not lying in the armature circuit Arousal falls below a certain level. In contrast, the field weakening is allowed only be small for driving forward. In most cases it will be useful Always leave the excitation fully switched on when reversing, while reversing is only driven at low speed anyway.
Um ein Überwiegen der Amperewindungen der Reihenschlußwicklung sicher zu vermeiden, wird bei Rückwärtsfahrt der Ankerstrom begrenzt. Am einfachsten geschieht dies dadurch, daß Mittel vorgesehen sind, die ein vollständiges Abschalten der Anfahrwiderstände bei Rückwärtsfahrt unmöglich machen.To a predominance of the ampere turns of the series winding safe To avoid this, the armature current is limited when reversing. The easiest way to do this this in that means are provided which enable the start-up resistors to be switched off completely impossible when reversing.
Durch gleichzeitige Anwendung dieser zwei Mittel kann erreicht werden, daß zwangläufig und unabhängig von der Geschicklichkeit des Führers das vori der nicht im Ankerstromkreis liegenden Erregerwicklung erzeugte Feld überwiegt, so, daß eine einwandfreie Rückwärtsfahrt gewährleistet ist.By using these two remedies at the same time, it can be achieved that inevitably and independently of the skill of the Fiihrer the previous one The field generated not in the armature circuit predominates, so, that correct reversing is guaranteed.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH679438X | 1936-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE679438C true DE679438C (en) | 1939-08-05 |
Family
ID=4528364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM136904D Expired DE679438C (en) | 1936-12-17 | 1937-01-19 | Switching arrangement for compound motors of electric traction vehicles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE679438C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1145218B (en) * | 1959-11-23 | 1963-03-14 | Acec | Circuit arrangement for a vehicle with an internal combustion engine for driving an electric power generator feeding direct current motors |
-
1937
- 1937-01-19 DE DEM136904D patent/DE679438C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1145218B (en) * | 1959-11-23 | 1963-03-14 | Acec | Circuit arrangement for a vehicle with an internal combustion engine for driving an electric power generator feeding direct current motors |
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