METERING AND MEASURING POINT SYSTEM FOR MEASURING AND METERING ELECTRICAL ENERGY/ELECTRICITY AND METHOD

• US 20160138939A1
• Filed: 01/26/2016
• Published: 05/19/2016
• Est. Priority Date: 11/25/2011
• Status: Active Grant

• Current Assignee: Ubitricity Gesellschaft fur Verteilte Energiesysteme mbH
• Original Assignee: Ubitricity Gesellschaft fur Verteilte Energiesysteme mbH
• Inventors: HECHTFISCHER, Knut, PAWLITSCHEK, Frank
• Granted Patent: US 9,797,745 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2270/32 of electricity
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: G01D 4/00 Tariff metering apparatus in taximeters G07B13/00; apparatus actuated by coins, cards or the like with meter-controlled dispensing of liquid, gas, or electricity G07F15/00
• CPC Class Codes: G01D 4/002 Remote reading of utility meters
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: G01R 19/10 Measuring sum, difference or ratio
• CPC Class Codes: H02J 13/00007 using the power network as support for the transmission
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading
• CPC Class Codes: Y04S 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
• CPC Class Codes: Y04S 40/121 using the power network as support for the transmission

Abstract

An inductive drawing or feeding device for inductively drawing off or feeding in electrical energy/electricity by electric vehicles is connected to a power grid. The inductive drawing or feeding device includes a measuring device configured to measure at least one physical parameter representing the electrical energy inductively transmitted through the associated drawing or feeding device. The inductive drawing or feeding device also includes an identifier for identifying the owner of the connection of the inductive drawing or feeding device. The inductive drawing of feeding device further includes a comparing device configured to compare the at least one physical parameter measured at a connecting side with at least one physical parameter measured at a drawing off or feeding side.

Claims

1. An inductive drawing or feeding device for inductively drawing off or feeding in electrical energy/electricity by electric vehicles, wherein the inductive drawing or feeding device is connected to a power grid, the inductive drawing or feeding device comprising:

a measuring device configured to measure at least one physical parameter representing the electrical energy inductively transmitted through the associated drawing or feeding device;

an identifier for identifying the owner of the connection of the inductive drawing or feeding device; and

a comparing device configured to compare the at least one physical parameter measured at a connecting side with at least one physical parameter measured at a drawing off or feeding side.

2. The inductive drawing or feeding device according to claim 1, wherein the comparing device is configured to initiate an action if the compared at least one physical parameter measured at the connecting side deviates from the at least one physical parameter measured at the drawing off or feeding side such that a predetermined difference threshold level is exceeded.

3. The inductive drawing or feeding device according to claim 2, wherein the comparing device is configured to trigger a disconnection of the drawing or feeding device from the power grid.

4. The inductive drawing or feeding device according to claim 2, wherein the comparing device is configured to trigger a signal that an inductive coupling is not accomplished.

5. The inductive drawing or feeding device according to claim 1, wherein the inductive drawing or feeding device is configured as a conductor loop.

6. The inductive drawing or feeding device according to claim 1, wherein the inductive drawing or feeding device is not provided with a current meter.

7. The inductive drawing or feeding device according to claim 1, wherein the measuring device at the connection side is configured to perform periodic measurements at equal or varying time intervals and/or wherein the measuring device at the connecting side is configured to perform stochastic measurements at predetermined time intervals.

8. The inductive drawing or feeding device according to claim 1, wherein the measuring device at the connecting side is configured to provide the at least one physical parameter measured at the connecting side as an instant value and/or an average value for time intervals of arbitrary constant or variable length.

9. The inductive drawing or feeding device according to claim 1, wherein the identifier is an electronic identifier configured to be detected at the drawing off or feeding side by a device configured to electronically detect the electronic identifier.

10. The inductive drawing or feeding device according to claim 1, wherein the at least one physical parameter measured at the connecting side and the at least one physical parameter measured at the drawing off or feeding side are (i) identical, or (ii) different and wherein the comparing device is configured to convert the measured physical parameters into values that are comparable to one another.

11. A method for monitoring an inductive coupling of an electric vehicle with an inductive drawing or feeding device, the method comprising:

inductively coupling the electric vehicle with the inductive drawing or feeding device;

measuring, at the inductive drawing or feeding device, at least one physical parameter representing the electrical energy drawn off or fed in by the inductive drawing or feeding device;

measuring at a drawing off or feeding side at least one physical parameter representing the electrical energy transmitted between the inductive drawing or feeding device and the electric vehicle;

comparing the at least one physical parameter measured at a connection side with the at least one physical parameter measured at the drawing off or feeding side; and

signalling that the inductive coupling is not accomplished.

12. The method according to claim 11, wherein measuring the at least one physical parameter at the inductive drawing or feeding device, and measuring the at least one physical parameter at the drawing off or feeding side, are performed periodically at equal or varying time intervals and/or by stochastic measurement at predetermined or random time intervals.

13. The method according to claim 11, wherein another signalling is performed if the compared measurements deviate from one another such that a predetermined difference threshold value is exceeded.

14. The method according to claim 11, wherein the at least one physical parameter measured at the connection side and the at least one physical parameter measured at the drawing off or feeding side are (i) identical, or (ii) different and wherein the measured physical parameters are converted into values that are comparable to one another.