DE1563987A1 - Arrangement for supplying DC motors with variable voltage, the energy of which is taken from a constant DC voltage source, in particular for electrical railway operation - Google Patents
Arrangement for supplying DC motors with variable voltage, the energy of which is taken from a constant DC voltage source, in particular for electrical railway operationInfo
- Publication number
- DE1563987A1 DE1563987A1 DE19671563987 DE1563987A DE1563987A1 DE 1563987 A1 DE1563987 A1 DE 1563987A1 DE 19671563987 DE19671563987 DE 19671563987 DE 1563987 A DE1563987 A DE 1563987A DE 1563987 A1 DE1563987 A1 DE 1563987A1
- Authority
- DE
- Germany
- Prior art keywords
- transformer
- capacitor
- diode
- energy
- parallel
- 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.)
- Granted
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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- 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
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
Anordnung zur Speisung von Gleichstrommotoren mit verän- derlicher Spannung, deren Energie aus einer konstanten Gleichspannungsguelle abgenommen wird, insbesondere für elektrischen Bahnbetrieb Wie bekannt, werden Eisenbahn- und Strass nbahnnetze mit konstantem Gleichstrom gespeist, bei dene zum Anfahren und zur Drehzahl-Regelung der Motoren kom lizierte und teuere Apparaturen, die keine volle Ausnützung der Eigenschaften der Motoren gestatten, erforderlich sind. Arrangement for supplying direct current motors with variable voltage, whose energy is taken from a constant direct voltage source , especially for electrical rail operation As is known, railway and tram networks are supplied with constant direct current, which are used to start up and regulate the speed of the motors Licensed and expensive equipment, which do not allow full use of the properties of the engines, are required.
Um die Vorteile, die die Speisung der Fahrmotoren mit einer geregelten
veränderlichen Spannung bietet, ausnützen zu können, hat man zwischen Speisequelle
und Fahrmotoren Transformatoren für die Gleichspannung eingeschaltet, welche entweder-auf
der Umwandlung durch einen Wechselspanriungszwischenatromkreis oder auf dem Prinzip
der periodischen elektronischen Schalter (die sogenannten "Chopper") mit
ge-
steuerten Halbleiterelementen (Thyristoren) beruhen. Die-
Die Anordnung arbeitet wie folgt: die FahrleitungaspannÜng wirä dem Motor in Form von Spannungsimpulsen bestifmter Frequenz und veränderlicher Dauer (oder veränderlicher Frequenz und Dauer), geglättet durch die Induktanz der Spule 13, zugeführt. Durch ein elektronisches Steuer- und Regelungssystem, welches nicht dargestellt und an sich bekennt ist,, wird in "a" den Thyristoren 6 ein Zündimpuls gegeben, welchem denn nach einer veränderlichen Dauer, aber innerhalb der Periode der ausgewählten Frequenz, ein Impuls in "b" folgt, dei durch den Thyristor 7 die Sperrung der Thyristoren 6 bewirkt. Diese Zündimpulse $ sind in den Zweigen A,B,C,D phasenverschoben, so dass auch die Durchlasszeit der jeweiligen Thyristoren phasenverschoben ist.The arrangement works as follows: the catenary voltage is supplied to the motor in the form of voltage pulses determined by frequency and variable duration (or variable frequency and duration), smoothed by the inductance of coil 13. By an electronic control and regulation system, which is not shown and is known per se, an ignition pulse is given to the thyristors 6 in "a", which then after a variable duration, but within the period of the selected frequency, a pulse in "b "follows, which causes the thyristors 6 to be blocked by the thyristor 7. These ignition pulses $ are phase-shifted in branches A, B, C, D, so that the conduction time of the respective thyristors is also phase-shifted.
Bei der Zündung der Thyristoren 6 entlädt Sch der Kondensa-tor 10, dessen Beläge die volle Spannurig besitzen, über den Löschkondensator 11, wobei diesem eine Minimalladung zugeteilt wird, welche für die nachfolgende Löschung geneigt. Diese Aufladung kann durch Einfluss der Selbstinduktanz des Transformators 12 zunehmen, je grösser der vom Motor aufgenommene Strom Ist. Anfänglich ist die volle Spannung an den Transformator 12.angelegt; wenn der von der Fahrleitung abgenommene Strom demjenigen gleich Lt, der durch die Spule 13 fliesst; hierbei verschwindet der Strom in der Entlastungsdiode 9,(welcher wegen des vorher bestehenden Stromes im Motor floss), diese sperrt, so dass die volle Spannung nun an die Spule 13 und an den Motor angelegt wird.When the thyristors 6 are ignited, the capacitor 10, the deposits of which are fully tensioned, discharges via the quenching capacitor 11, with this being assigned a minimum charge which is inclined for the subsequent quenching. This charging can increase due to the influence of the self-inductance of the transformer 12, the greater the current consumed by the motor. Initially, the full voltage is applied to the transformer 12.; when the current drawn from the contact line is equal to that Lt flowing through the coil 13; in this case the current in the relief diode 9 (which flowed because of the previously existing current in the motor) disappears, it blocks so that the full voltage is now applied to the coil 13 and to the motor.
Hach einer gewUnsohten Zwischenpause wird die Löschung der Thyristoren
6 durch einen Impuls In "b" bewirkt,,der den Thyristor ? zündet.
Der Kondensator'll entladet sich über den
Transformator 12; der grösste
Teil des Entladestromes fliesst hierbei in Richtung durch die.Thyristoren 6 und
bewirkt deren Löschung; dabei fliesst er durch den Kondensator 10 und lädt diesen
auf. Ein kleinerer Teil des Stromes Hiesst Uber den Transformator 12 in Richtung
zur Spule 12'. Dieser Strom hat Yür den Löschvorgang keine Bedeutung. Durch den
Kondensator
Von dem Augenblick an, wenn der Strom in den Thyristoren 6 gelöscht wird, entlädt sich der Kondensator 1l, der noch teilweise geladen Ist, in Form einer Schwingung über den Transformator 12.From the moment when the current in the thyristors 6 is deleted is, the capacitor 1l, which is still partially charged, discharges in the form of a Vibration through the transformer 12.
Die in diesem induzierte Spannung würde sich in der zweiten Halbperiode-der Schwingung, zu der zunehmenden Spannung des Kondensators 10 addieren und die Spannungsbeanspruchung der Thyristoren 6 über den Wert der Leitungsspannung erhöhen.The voltage induced in this would increase in the second half-period Oscillation, add to the increasing voltage of the capacitor 10 and the voltage stress the thyristors 6 increase above the value of the line voltage.
10 Um diesen Nachteil, der zu einer reichlicbere@und kostspieligeren Bemessung der Thyristoren 6 führen würde, zu vermeiden, wird die Sekundärwicklung des Transformators 12 vorgeser.eri, welche über die Diode 81 mit einer Batterie 21, oder mit anderen Einrichtung, welche geeignet ist, Energie aufzunehmen, verbunden ist. Wenn die Spannung an den Klemmen des Kond6nsators 11 ihre Polarität ändert, wird sich die noch in dem Stromkreis 11-12 befindliche-Energie über die Diode $v auf die Batterie 21 entladen, und die kaum begonnene@Schwingung wird unterbrochen. Dasselbe kann man mit der Diode 22 erreichen, (die gestrichelt dargestellt ist). In diesem Falle würde sich die Energie unmittelbar über die Last selbst entladen.10 In order to avoid this disadvantage, which would lead to a more generous @ and more expensive dimensioning of the thyristors 6, the secondary winding of the transformer 12 is vorgeser.eri, which via the diode 81 with a battery 21, or with other device, which is suitable to absorb energy, is connected. If the voltage at the terminals of the capacitor 11 changes its polarity, the energy still in the circuit 11-12 is discharged via the diode $ v to the battery 21, and the oscillation, which has hardly begun, is interrupted. The same can be achieved with diode 22 (shown in phantom). In this case the energy would discharge itself directly through the load.
Wenn die Leit- und Umschaltphase von Durchlass auf Sperrung beendet ist, fliesst der Motorstrom 1 über die Diode 9 noch weiter, bis bei einem neuen Zündimpuls in "a" der Vorgang, wie beschrieben, neu anfängt.When the lead and switchover phase from passage to blocking has ended is, the motor current 1 continues to flow through the diode 9 until a new one Ignition pulse in "a" the process starts over as described.
Mit der Farallelachaltung von mehreren, wie die besChriebenen, Stromkreisen (vier in dem dargestellten AusfUhrungsbeispiel), wobei die Schaltung der Thyristoren 6 phasenverschoben ist, kann man eine wesentliche höhere Freqenz des gesamten Systems erreichen, was in Bezug auf die Bemessung der Filter 15-16 von Vorteil ist.With the parallel connection of several, as described, circuits (four in the illustrated embodiment), whereby the circuit of the thyristors 6 is out of phase, one can achieve a significantly higher frequency of the entire system, which in relation to the dimensioning of the filters 15-16 is beneficial.
Claims (2)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1435866 | 1966-02-10 | ||
IT1435866 | 1966-02-10 | ||
DEA0054801 | 1967-02-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1563987A1 true DE1563987A1 (en) | 1972-02-17 |
DE1563987B2 DE1563987B2 (en) | 1972-11-23 |
DE1563987C DE1563987C (en) | 1973-06-14 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
DE1563987B2 (en) | 1972-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E771 | Valid patent as to the heymanns-index 1977, willingness to grant licences | ||
8339 | Ceased/non-payment of the annual fee |