DE102020001434A1 - Method for operating a charging station and charging station for carrying out the method - Google Patents
Method for operating a charging station and charging station for carrying out the method Download PDFInfo
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- DE102020001434A1 DE102020001434A1 DE102020001434.8A DE102020001434A DE102020001434A1 DE 102020001434 A1 DE102020001434 A1 DE 102020001434A1 DE 102020001434 A DE102020001434 A DE 102020001434A DE 102020001434 A1 DE102020001434 A1 DE 102020001434A1
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 13
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/04—Billing or invoicing
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/67—Controlling two or more charging stations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Business, Economics & Management (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Theoretical Computer Science (AREA)
- Development Economics (AREA)
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- Transportation (AREA)
- Mechanical Engineering (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Betreiben einer Ladestation für batteriebetriebene Elektrofahrzeuge, umfassend eine Mehrzahl von Ladepunkten zum Laden der Elektrofahrzeuge mit elektrischer Energie und eine gemeinsame Steuerung zum Steuern des Ladevorgangs und der Abrechnung der Kosten für den Stromkunden. Die Spannungsverluste in der Stromleitung zwischen Steuerschrank und jedem Ladepunkt werden ermittelt und können bei der Berechnung der Energiekosten berücksichtigt werden. Sie betrifft ferner eine Ladestation zum Durchführen des Verfahrens.The invention relates to a method for operating a charging station for battery-operated electric vehicles, comprising a plurality of charging points for charging the electric vehicles with electrical energy and a common controller for controlling the charging process and billing the costs for the electricity customer. The voltage losses in the power line between the control cabinet and each charging point are determined and can be taken into account when calculating the energy costs. It also relates to a charging station for carrying out the method.
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Betreiben einer Ladestation für batteriebetriebene Elektrofahrzeuge, umfassend eine Mehrzahl von Ladepunkten zum Laden der Elektrofahrzeuge mit elektrischer Energie und eine gemeinsame Steuerung zum Steuern des Ladevorgangs und der Abrechnung der Kosten für den Stromkunden. Unter Elektrofahrzeuge sind dabei auch Schiffe sowie Luftfahrzeuge zu verstehen, die mit aufladbaren Batterien betrieben werden. Die Erfindung betrifft ferner eine Ladestation zum Durchführen des Verfahrens.The present invention relates to a method for operating a charging station for battery-operated electric vehicles, comprising a plurality of charging points for charging the electric vehicles with electrical energy and a common controller for controlling the charging process and billing the costs for the electricity customer. Electric vehicles also include ships and aircraft that are operated with rechargeable batteries. The invention also relates to a charging station for carrying out the method.
Eine gattungsbildende Ladestation ist aus der
Bei einer solchen Ladestation muss sichergestellt sein, dass die Abrechnung der von den jeweiligen Stromkunden bezogene Energiemenge möglichst korrekt erfolgt. Bei den Ladestationen der genannten Bauart erfolgt die Spannungsverteilung auf die einzelnen Ladepunkte innerhalb der Steuerung und wird über Stromkabel zu den einzelnen Ladepunkten geführt. Der Abstand und damit die Leitungslänge variiert sehr stark, da die Ladepunkte an verschiedenen Stellen, z.B. innerhalb eines Parkhauses oder einer Tiefgarage, angeordnet sein können. Kabellänge, Querschnitt des Stromkabels, Umgebungstemperatur, Übergangswiderstände sind nur einige Parameter, die den Widerstand innerhalb dieser Stromkabel beeinflussen. Dies bedeutet aber einen unterschiedlichen und zeitlich evtl. variierenden Spannungsabfall zwischen Steuerschrank und Ladepunkt. Wenn nun der im Schaltschrank anliegende Spannungswert zur Berechnung der Energiekosten herangezogen wird bedeutet dies, dass der Stromkunde zu viel bezahlen muss.With such a charging station, it must be ensured that the billing of the amount of energy used by the respective electricity customer is as correct as possible. In the case of charging stations of the type mentioned, the voltage is distributed to the individual charging points within the control system and is routed to the individual charging points via power cables. The distance and thus the cable length varies greatly, as the charging points can be arranged in different places, e.g. within a multi-storey car park or underground car park. Cable length, cross-section of the power cable, ambient temperature, contact resistance are just a few parameters that influence the resistance within these power cables. However, this means a different voltage drop that may vary over time between the control cabinet and the charging point. If the voltage value in the control cabinet is used to calculate the energy costs, this means that the electricity customer has to pay too much.
Der Erfindung liegt die Aufgabe zugrunde, das Verfahren so auszuführen, dass eine gerechtere Abrechnung der Stromkosten erfolgen kann, indem nur die tatsächlich entnommene Strommenge abgerechnet werden kann. Dieses Verfahren sollte einfach und kostengünstig sowie wartungsarm durchgeführt werden können und zuverlässig arbeiten.The invention is based on the object of implementing the method in such a way that a fairer billing of the electricity costs can take place in that only the amount of electricity actually withdrawn can be billed. It should be possible to carry out this process easily and inexpensively, with little maintenance, and it should work reliably.
Erreicht wird dies dadurch, dass der Spannungsverlust erfasst und nicht an den Stromkunden bei der Berechnung der Stromkosten eingerechnet wird. Gemäß einer ersten Lösung wird dabei die direkt im Bereich eines Ladepunktes anliegende Spannung gemessen, an die Steuerung übergeben und zur Berechnung der Strommenge herangezogen. Dabei wird als eine Möglichkeit vorgeschlagen, die Spannung über eine Kommunikationsleitung oder Messleitung zwischen Ladepunkt und Steuerung zu ermitteln. Eine zweite Lösung besteht darin, den Spannungswert im Ladepunkt direkt mit einer entsprechenden dort angeordneten Messeinrichtung zu ermitteln und über eine Funkverbindung oder eine Kommunikationsleitung zu übertragen, was den Vorteil hat, dass Spannungsverluste in der Kommunikationsleitung vermieden werden, obwohl diese sehr gering und damit vernachlässigbar sind. Diese Lösung ist allerdings teurer. In Zukunft ist es aber denkbar, die Übermittlung über das geplante 5G Netz, das eine hohe Übertragungsrate zulässt, vorzunehmen.This is achieved by the fact that the voltage loss is recorded and not included in the calculation of the electricity costs for the electricity customer. According to a first solution, the voltage applied directly in the area of a charging point is measured, transferred to the controller and used to calculate the amount of electricity. It is proposed as a possibility to determine the voltage via a communication line or measuring line between the charging point and the controller. A second solution is to determine the voltage value in the charging point directly with a corresponding measuring device located there and to transmit it via a radio link or a communication line, which has the advantage that voltage losses in the communication line are avoided, although these are very low and therefore negligible . However, this solution is more expensive. In the future, however, it is conceivable that the transmission could be carried out via the planned 5G network, which allows a high transmission rate.
Eine zweite Lösung für die erfindungsgemäße Aufgabe besteht darin, die an jedem Ladepunkt anliegende Spannung in der Weise zu ermitteln, dass man bei der Installation eines Ladepunktes oder in widerkehrenden Intervallen den elektrischen Widerstand in den stromführenden Kabeln zwischen dem Ladepunkt und der Steuerung misst. Dieser Wert wird in einem Speicher in der Steuerung hinterlegt. Die Spannung für den Ladepunkt wird in der Steuerung gemessen. Wenn nun der Ladepunkt Strom abgibt fließt ein Strom, der in der Steuerung ebenfalls gemessen wird. Über den Wert von Strom und Widerstand kann der Spannungsabfall zu jedem Zeitpunkt berechnet und von der im Steuerschrank gemessenen Spannung abgezogen werden. Diese reduzierte Spannung wird dann für die Berechnung der Energiekosten herangezogen. Prinzipiell ist es möglich, den Wert des Widerstandes vor, während und/oder am Ende eines Ladevorgangs zu ermitteln, um einen Mittelwert zu bilden, da sich der Widerstand während des Ladevorganges verändern kann, z. B. durch Erwärmung der Stromkabel.A second solution to the task according to the invention is to determine the voltage present at each charging point in such a way that the electrical resistance in the current-carrying cables between the charging point and the controller is measured when installing a charging point or at recurring intervals. This value is stored in a memory in the controller. The voltage for the charging point is measured in the controller. If the charging point delivers current, a current flows which is also measured in the control. The voltage drop can be calculated at any point in time using the value of current and resistance and subtracted from the voltage measured in the control cabinet. This reduced voltage is then used to calculate the energy costs. In principle, it is possible to determine the value of the resistance before, during and / or at the end of a charging process in order to form an average value, since the resistance can change during the charging process, e.g. B. by heating the power cables.
Die Ladestation für die erstgenannte Lösung ist entweder mit einer Kommunikationsleitung zwischen Ladestation und Steuerung versehen und so ausgebildet, dass sie die Spannungsmessung direkt am Ladepunkt oder eine Übertragung eines Messwertes vornehmen kann. Oder im Ladepunkt ist eine Funkeinrichtung zum Übertragen der durch eine Messeinrichtung in jedem Ladepunkt gemessenen Spannung an die Steuerung vorgesehen.The charging station for the first-mentioned solution is either provided with a communication line between the charging station and the controller and is designed in such a way that it can measure the voltage directly at the charging point or transmit a measured value. Or a radio device is provided in the charging point for transmitting the voltage measured by a measuring device in each charging point to the controller.
Gemäß der zweiten Lösung ist in der Steuerung ein Speicher für den ermittelten und ggf. gemittelten Widerstand in den stromführenden Leitungen vorgesehen.According to the second solution, a memory for the determined and possibly averaged resistance in the current-carrying lines is provided in the controller.
Die Erfindung ist anhand der schematischen Zeichnungen näher beschrieben. Es zeigt:
-
1 eine Darstellung der Ladestation. -
2 eine vergrößerte Darstellung des Stromanschlusses eines Ladepunktes.
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1 a representation of the charging station. -
2 an enlarged view of the power connection of a charging point.
Die Ladestation besteht aus einem Steuerschrank
Am Steuerschrank
Gemäß einer zweiten Lösung ist direkt in den Ladepunkten
Ein anderes Prinzip der Messung der Verlustspannung besteht darin, wie bereits vorne beschrieben, den Widerstand in den Stromkabeln
BezugszeichenlisteList of reference symbols
- 11
- Steuerungsteering
- 22
- StromkabelPower cord
- 33
- LadepunktCharging point
- 44th
- StromzuführungPower supply
- 55
- KommunikationsleitungCommunication line
- 66th
- KommunikationsleitungCommunication line
- 77th
- MesseinrichtungMeasuring device
- 88th
- FunkmodulRadio module
- 99
- SpeicherStorage
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- DE 102017128375 A1 [0002]DE 102017128375 A1 [0002]
Claims (8)
Priority Applications (1)
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DE102020001434.8A DE102020001434A1 (en) | 2020-03-04 | 2020-03-04 | Method for operating a charging station and charging station for carrying out the method |
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DE102020001434.8A DE102020001434A1 (en) | 2020-03-04 | 2020-03-04 | Method for operating a charging station and charging station for carrying out the method |
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DE102020001434A1 true DE102020001434A1 (en) | 2021-09-09 |
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DE102020001434.8A Pending DE102020001434A1 (en) | 2020-03-04 | 2020-03-04 | Method for operating a charging station and charging station for carrying out the method |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017221298A1 (en) | 2017-11-28 | 2019-05-29 | Siemens Aktiengesellschaft | Measuring device and method for detecting a transferred from a charging station electrical energy |
DE102017128375A1 (en) | 2017-11-30 | 2019-06-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | CONNECTORS, SOCKETS, MULTIPLE SOCKETS, AND METHOD FOR CONTROLLING A CONNECTOR |
WO2019224267A2 (en) | 2018-05-24 | 2019-11-28 | Abb Schweiz Ag | Electrical vehicle charging system for charging an electrical vehicle |
DE102018125597B3 (en) | 2018-10-16 | 2020-02-06 | Isabellenhütte Heusler Gmbh & Co. Kg | Electricity meter and associated operating procedure |
-
2020
- 2020-03-04 DE DE102020001434.8A patent/DE102020001434A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017221298A1 (en) | 2017-11-28 | 2019-05-29 | Siemens Aktiengesellschaft | Measuring device and method for detecting a transferred from a charging station electrical energy |
DE102017128375A1 (en) | 2017-11-30 | 2019-06-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | CONNECTORS, SOCKETS, MULTIPLE SOCKETS, AND METHOD FOR CONTROLLING A CONNECTOR |
WO2019224267A2 (en) | 2018-05-24 | 2019-11-28 | Abb Schweiz Ag | Electrical vehicle charging system for charging an electrical vehicle |
DE102018125597B3 (en) | 2018-10-16 | 2020-02-06 | Isabellenhütte Heusler Gmbh & Co. Kg | Electricity meter and associated operating procedure |
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