DE3035808A1 - DEVICE FOR PROTECTION AGAINST OVERVOLTAGE FOR NETWORKS - Google Patents
DEVICE FOR PROTECTION AGAINST OVERVOLTAGE FOR NETWORKSInfo
- Publication number
- DE3035808A1 DE3035808A1 DE19803035808 DE3035808A DE3035808A1 DE 3035808 A1 DE3035808 A1 DE 3035808A1 DE 19803035808 DE19803035808 DE 19803035808 DE 3035808 A DE3035808 A DE 3035808A DE 3035808 A1 DE3035808 A1 DE 3035808A1
- Authority
- DE
- Germany
- Prior art keywords
- thyristor
- control input
- controllable
- ueb
- output
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
-
- 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)
- Emergency Protection Circuit Devices (AREA)
- Control Of Charge By Means Of Generators (AREA)
- Protection Of Generators And Motors (AREA)
- Protection Of Static Devices (AREA)
- Control Of Eletrric Generators (AREA)
Description
Chr/Jä 1U.Ö.198OChr / Jä 1U.Ö.198O
Robert Bosch Gmbfi, TOOO StuttgartRobert Bosch GmbH, TOOO Stuttgart
Einrichtung zum Schutz gegen Überspannungen für Net zirerke _. Device for protection against overvoltages for net zirerke _.
Stand der TechnikState of the art
Die Erfindung geht aus yon einer Einrichtung nach der Gattung des Hauptanspruchs. Es ist schon eine Lösung bekannt geworden, bei der der Ausgang der Spannungsq.uelle durch einen Thyristor kurzgeschlossen wird. Um das ■ Net zverk "wieder· in Betriebsbereit schaft zu setzen, wird die Schaltstrecke, des Thyristors durch eine von einem Relais gesteuerte Schaltbrücke kurzgeschlossen und der Thyristor damit gelöscht. Diese Lösung ist jedoch verhältnismäßig kompliziert und für den rauhen Betrieb im Kraftfahrtwesen nicht geeignet.The invention is based on a device according to the Genre of the main claim. A solution has already become known in which the output of the voltage source is short-circuited by a thyristor. In order to bring the network back to operational readiness set, the switching path of the thyristor is short-circuited by a switching bridge controlled by a relay and the thyristor is thus extinguished. These However, the solution is relatively complicated and not suitable for the rough operation in the automotive industry.
Vorteile der Erfindung ·Advantages of the invention
Die erfindungsgemäße Einrichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den -Vorteil, daß der gewünschte Überspannungsschutz mit automatischer Fiederbereit schaft durch eine verhältnismäßig einfache elektronische Schaltung realisiert ist. Als weiterer Vorteil ist anzusehen, daß die" Wiederbereit—The device according to the invention with the characteristic Features of the main claim has the advantage that the desired overvoltage protection with automatic Preparedness for feathers through a proportionate simple electronic circuit is realized. as Another advantage is that the "re-ready"
9 9 · IqO * β 0 β (ο * O 9 9 IqO * β 0 β (ο * O
β . θ ο # β β ο β* β β ο ^ ρ β β eau«:β. θ ο # β β ο β * β β ο ^ ρ β β eau «:
schaftsseit der Schutzreinrichtung fast "Delie-big einstellbar "ist. Schließlich arbeitet die Einrichtung verschleißfrei .Almost "Delie-big" adjustable on the shaft side of the protective device "is. After all, the device works wear-free .
Durch die in den Unteransprüchen aufgeführten "Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Einrichtung möglich.Through the "measures listed in the subclaims advantageous developments and improvements of the device specified in the main claim are possible.
Zeichnun'gDrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.An embodiment of the invention is shown in the drawing and explained in more detail in the following description.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Ein Ausführungsbeispiel ist in der einzigen Zeichnungsfigur dargestellt. Einem Stromerzeugersystem Str ist ein Brückengleichrichter Bg nachgeschaltet. Die Anschlüsse des Brückengleichrichters Bg führen zu einem Massean- ' Schluß M und zu einem Ausgangsanschluß B+ des Generatorsystems Gen. Das Generatorsystem Gen umfaßt weiter ein.en Erregergleichrichter Eg und eine Erregerwicklung Ev. Der Erregergleichrichter Eg und die Erregerwicklung Ew sind an den Anschluß D+ des Generators Gen angeschlossen. Das andere Ende der Erregerwicklung Ew liegt am Anschluß DF des Generators Gen. Dem Generator Gen ist in bekannter Spannungsregler Eeg nachgeschaltet, dessen zugehörige Anschlüss.e mit den Generatoranschlüssen M, DF, D+ verbunden sind. An den Ausgangsanschluß B+ des Generators Gen ist eine Fahrzeugbatterie Ba' anschließbar. Beim Betrieb der Anlage wird üblicherweise ein Fahrschalter Fs eingeschaltet, den ordnungsgemäßen Betrieb des Generators Gen und des Reglers Reg zeigt.eine Ladekontrollanzeige-An exemplary embodiment is shown in the single drawing figure. A power generating system is a Str Bridge rectifier Bg connected downstream. The connections of the bridge rectifier Bg lead to a ground connection Terminal M and to an output terminal B + of the generator system Gen. The generator system Gen further comprises ein.en Excitation rectifier Eg and an excitation winding Ev. The excitation rectifier Eg and the excitation winding Ew are connected to terminal D + of generator Gen. The other end of the excitation winding Ew is at the connection DF of the generator Gen. The generator Gen is connected downstream in a known voltage regulator Eeg, its associated connections are connected to the generator connections M, DF, D +. To the output terminal B + of the generator Gen a vehicle battery Ba 'can be connected. When the system is in operation, a drive switch Fs is usually switched on, shows the correct operation of the generator Gen and the regulator Reg.
lampe La an. ■ . * "lamp La on. ■. * "
An das System aus Generator. Gen und Regler Reg ist eine Überspannungs-Schutzeinrichtung Ueb angeschlossen, und 'zwar an die Anschlüsse M, D+ und -B+ des Generators Gen. Die Einrichtung Ueb enthält eine Reihenschaltung aus einem Thyristor Th pnd .einer Diode D2-, dabei liegt die Anode des Thyristors Th am Anschluß D+ und die Kathode der Diode D2 am Anschluß M..Am Verbindungspunkt zwischen der Kathode des Thyristors Th und der Anode der Diode D2 liegt das eine Ende -eines Widerstands R3, dessen anderes Ende an den Anschluß B+ angeschlossen ist. Über der Reihenschaltung aus dem Thyristor Th und der Diode D2 liegt ein Spannungsteiler mit den.ohmschen Widerständen R1 und R2. Zwischen dem Verbindungspunkt der beiden Widerstände R1, R2 und dem Gitteranschluß des Thyristors Th liegt eine Zenerdiode D1, und zwar mit ihrer Anode am Gitteranschluß des Thyristors Th. Parallel zur Reihenschaltung aus dem Thyristor Th und der Diode D2 . liegt die Kollektor-Emitter-Strecke eines Transistors Tr. Zwischen der Basis des Transistors Tr und seinem Emitter ist ein Kondensator C gelegt. Weiter enthält die Einrichtung' Ueb eine monöstabile Kippstufe MK.""-Diese monostabile Kippstufe. M-K wird vom Anschluß B+ des Generators Gen her mit Spannung versorgt. Der Steuereingang der monostabilen Kippstufe MK ist mit dem Gitteranschluß des Thyristors Th und ihr Ausgang mit dem Basisanschluß des Transistors Tr verbunden.To the system from the generator. Gen and regulator Reg is connected to an overvoltage protection device Ueb, and 'Although to the connections M, D + and -B + of the generator Gen. The device Ueb contains a series circuit a thyristor Th pnd .einer diode D2-, this is the The anode of the thyristor Th at the connection D + and the cathode of the diode D2 at the connection M..Am the connection point between the cathode of the thyristor Th and the anode of the diode D2 is one end of a resistor R3, the other End is connected to connector B +. Via the series connection of the thyristor Th and the diode D2 there is a voltage divider with the ohmic resistors R1 and R2. Between the junction of the two Resistors R1, R2 and the grid connection of the thyristor Th is a Zener diode D1, with its anode at the grid connection of the thyristor Th. Parallel to the series connection of the thyristor Th and the diode D2. is the collector-emitter path of a transistor Tr. Between the base of the transistor Tr and his A capacitor C is placed on the emitter. Next contains the device 'Ueb a monostable multivibrator MK. "" - This monostable multivibrator. M-K is connected to port B + of the generator Gen supplied with voltage. The control input of the monostable multivibrator MK is with the grid connection of the thyristor Th and its output connected to the base connection of the transistor Tr.
Mit Hilfe der· erfindungsgemäßen Überspannungs-Schutzeinrichtung Ueb wird die Batterieladeeinrichtung, mit dem Generator Gen und der Batterie Ba vor Überspannungen dadurch geschützt, daß im Störungsfall die Erregereinrichtung Ew, Eg des Generators Gen kurzgeschlossen "wird". 'With the aid of the overvoltage protection device Ueb according to the invention, the battery charging device, with the generator Gen and the battery Ba protected from overvoltages in that the exciter device Ew, Eg of the generator Gen "is" short-circuited. '
««Ο * *« β Q ta 0«« Ο * * «β Q ta 0
Nach dem Wegfall der Überspannung wird der Überspannungsschutz automatisch·wieder gelöscht.After the overvoltage has ceased, the overvoltage protection is activated automatically · deleted again.
Beim Auftreten einer Überspannung am Anschluß D+ oder am Anschluß B+ wird die Zenerdiode D] leitend und damit der Thyristor Th gezündet. Infolgedessen wird die Erregereinrichtung zwischen den Anschlüssen D+ und M des Generators Gen praktisch kurzgeschlossen. Damit wird der Generator Gen entregt. Beim Zünden des Thyristors Th gelangt gleichzeitig von der Anode der Zenerdiode Dl ein Spannungsimpuls zum Steuereingang der monostabilen Kippstufe MK. Am Ausgang der monostabilen Kippstufe MK wird nun ein rechteckiger Spannungsimpuls'-einstellbarer Dauer erzeugt. Mit Hilfe des Rechtecksparinungsimpulses wird der Kondensators C aufgeladen. Hat die Spannung an den Anschlüssen des Kondensators C nach einer bestimmten Zeit einen bestimmten Wert erreicht, wird der Transistor Tr - verzögert - eingeschaltet. Ist die Schaltstrecke des Transistors Tr leitend geworden, wird der Thyristor Th kurzgeschlossen und damit die Überspannungs-Schutzeinrichtung automatisc-h gelöscht. Eine sichere Löschung des Thyristors' Th. wird durch die Diode D2 erreicht,, weil durch sie die Kathode des Thyristors Th bei Stromfluß positiv vorgespannt ist. Es hat sich als zweckmäßig herausgestellt, den Transistor Tr verzögert einzuschalten, -weil beim Kurzschluß des Generators Gen der Erregerstrom und damit der Ausgangsstrom des Generators Gen entsprechend der Zeitkonstanten des Erregerfeldes · abklingen. Efaoh einer entsprechend langen Zeit muß der Transistor Tr nur noch einen relativ kleinen Strom übernehmen. ; ·When an overvoltage occurs at terminal D + or at terminal B +, the Zener diode D] becomes conductive and thus the thyristor Th is ignited. As a result, the excitation device is practically short-circuited between the terminals D + and M of the generator Gen. This de-energizes the generator gene. When the thyristor Th is triggered, a voltage pulse from the anode of the Zener diode Dl reaches the control input of the monostable multivibrator MK. A rectangular voltage pulse of adjustable duration is now generated at the output of the monostable multivibrator MK. The capacitor C is charged with the aid of the square-wave saving pulse. If the voltage at the terminals of the capacitor C has reached a certain value after a certain time, the transistor Tr is switched on with a delay. If the switching path of the transistor Tr has become conductive, the thyristor Th is short-circuited and the overvoltage protection device is automatically deleted. A reliable extinction of the thyristor Th. Is achieved by the diode D2, because through it the cathode of the thyristor Th is positively biased when current flows. It has been found to be expedient to switch on the transistor Tr with a delay, because in the event of a short circuit in the generator Gen the excitation current and thus the output current of the generator Gen decay in accordance with the time constants of the excitation field. After a correspondingly long time, the transistor Tr only has to take on a relatively small current. ; ·
■ ,β'■, β '
Schließlich kippt die monostabile Kippschaltung- wieder zurück, dadurch wird der Transistor Tr "wieder nichtleitend und die Anlage ist wieder'betriebsbereit.Finally the monostable flip-flop switches again back, the transistor Tr "becomes non-conductive again and the system is ready for operation again.
. .Λ-Μί 'Λ·. .Λ-Μί 'Λ ·
Claims (1)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803035808 DE3035808A1 (en) | 1980-09-23 | 1980-09-23 | DEVICE FOR PROTECTION AGAINST OVERVOLTAGE FOR NETWORKS |
JP56148937A JPS5785529A (en) | 1980-09-23 | 1981-09-22 | Overvoltage protecting device |
GB8128549A GB2085246B (en) | 1980-09-23 | 1981-09-22 | Protecting electrical networks against excessive voltages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803035808 DE3035808A1 (en) | 1980-09-23 | 1980-09-23 | DEVICE FOR PROTECTION AGAINST OVERVOLTAGE FOR NETWORKS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3035808A1 true DE3035808A1 (en) | 1982-05-06 |
Family
ID=6112623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803035808 Ceased DE3035808A1 (en) | 1980-09-23 | 1980-09-23 | DEVICE FOR PROTECTION AGAINST OVERVOLTAGE FOR NETWORKS |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5785529A (en) |
DE (1) | DE3035808A1 (en) |
GB (1) | GB2085246B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4481553A (en) * | 1982-04-05 | 1984-11-06 | General Electric Company | Protection circuit |
DE3310242A1 (en) * | 1983-03-22 | 1984-09-27 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Circuit arrangement for surge-voltage protection, with an automatic reset |
DE4021667C2 (en) * | 1990-07-07 | 2001-03-08 | Bosch Gmbh Robert | Device for protecting a vehicle electrical system from overvoltages with an error display |
FR2797116B1 (en) * | 1999-07-27 | 2001-10-05 | Valeo Equip Electr Moteur | PROTECTION AGAINST OVERVOLTAGES GENERATED BY ALTERNATORS |
FR2832261B1 (en) * | 2001-11-13 | 2005-03-25 | St Microelectronics Sa | DEVICE FOR PROTECTING LOADS POWERED BY AN ALTERNATOR |
DE102008020030B4 (en) * | 2008-04-21 | 2022-05-19 | Aeg Power Solutions Gmbh | Circuit arrangement with a rectifier and a circuit for protecting at least one direct-current network with direct-current loads that can be connected to the circuit arrangement against overvoltage |
JP2015211602A (en) * | 2014-04-30 | 2015-11-24 | 株式会社ホトニクス | Surge protector |
WO2016041601A1 (en) * | 2014-09-19 | 2016-03-24 | Höganäs Ab | An electric machine assembly |
CN108802527B (en) * | 2018-06-11 | 2020-10-27 | 国家电网有限公司 | Excitation small current closed loop test trolley |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1494254A (en) * | 1966-07-26 | 1967-09-08 | S E V Motorola S A | Device preventing overvoltages at the terminals of a rectified alternating current generator |
GB1328112A (en) * | 1969-09-17 | 1973-08-30 | Matsushita Electric Ind Co Ltd | Overload protection circuit for power supply circuit |
DE2811440A1 (en) * | 1978-03-16 | 1979-09-20 | Bosch Gmbh Robert | ELECTRIC GENERATOR |
DE2952791A1 (en) * | 1979-01-05 | 1980-07-10 | Paris & Du Rhone | DEVICE FOR PROTECTION AGAINST OVERVOLTAGE |
-
1980
- 1980-09-23 DE DE19803035808 patent/DE3035808A1/en not_active Ceased
-
1981
- 1981-09-22 GB GB8128549A patent/GB2085246B/en not_active Expired
- 1981-09-22 JP JP56148937A patent/JPS5785529A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1494254A (en) * | 1966-07-26 | 1967-09-08 | S E V Motorola S A | Device preventing overvoltages at the terminals of a rectified alternating current generator |
GB1328112A (en) * | 1969-09-17 | 1973-08-30 | Matsushita Electric Ind Co Ltd | Overload protection circuit for power supply circuit |
DE2811440A1 (en) * | 1978-03-16 | 1979-09-20 | Bosch Gmbh Robert | ELECTRIC GENERATOR |
DE2952791A1 (en) * | 1979-01-05 | 1980-07-10 | Paris & Du Rhone | DEVICE FOR PROTECTION AGAINST OVERVOLTAGE |
Non-Patent Citations (2)
Title |
---|
Firmenschrift: Generatoren, Technische Unterrichtung, Bosch GmbH, 1980, S.31 * |
K. WETZEL: Elektr. Schaltungen für Kfz, Siemens AG, 1978, S.44-45 * |
Also Published As
Publication number | Publication date |
---|---|
JPS6360612B2 (en) | 1988-11-25 |
GB2085246B (en) | 1983-05-25 |
GB2085246A (en) | 1982-04-21 |
JPS5785529A (en) | 1982-05-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8131 | Rejection |