WO2020167132A1 - Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle - Google Patents
Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle Download PDFInfo
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- WO2020167132A1 WO2020167132A1 PCT/NO2020/050028 NO2020050028W WO2020167132A1 WO 2020167132 A1 WO2020167132 A1 WO 2020167132A1 NO 2020050028 W NO2020050028 W NO 2020050028W WO 2020167132 A1 WO2020167132 A1 WO 2020167132A1
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
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- 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
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- 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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- 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
- B60L53/63—Monitoring or controlling charging stations in response to network capacity
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- 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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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
- H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
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- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/91—Electric vehicles
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- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- 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
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- 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
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- 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
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
Definitions
- the present invention relates to an arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle, and it also relates to a charging station including such an arrangement.
- An electrical installation for recharging electric vehicles is typically organised in a tree structure in which a combination of electric signals (e.g. ground, protective earth, and first phase) from an electrical grid is distributed to a number of charging stations.
- the electrical installation is usually provided with: a main electrical safety device, such as a fuse, for interrupting the installation’s supply of electricity if a predefined maximum current is consumed; an arrangement of the charging stations into groups; and an electrical safety device for each group in order to interrupt a group’s supply of electricity if a predefined maximum current is consumed by the group.
- the electric signals from the electrical grid are distributed from the global electrical safety device to each of the electrical safety devices of the groups, and then to each of the charging stations within each group.
- a number of different combinations of electric signals are seen to be supplied to charging stations.
- different types of earthing system are observed.
- three families of earthing systems can be observed: Terra-Neutral (TN); Terra-Terra (TT), and Isolated- Terra (IT).
- TN Terra-Neutral
- TT Terra-Terra
- IT Isolated- Terra
- different types of electric power distribution are used, such as the split- phase type.
- different numbers of electrical phases can be observed.
- a charging station can have one, two or three electrical phases available at its input terminals, and electric power from any of these can be transmitted to an electric vehicle.
- an inefficient situation can happen due to phase balancing issues.
- an inefficient situation can be observed when, in a group of charging stations protected by an electrical safety device for interrupting a three-phase power supply of the group at 32 A in any of the phases, two charging stations are each consuming 16 A from the same electrical phase.
- both charging stations can consume 32 A each but from different electrical phases, without causing the electrical safety device to interrupt the supply of electricity. This selection of phases allows doubling the amount of power that is used for recharging electric vehicles.
- a known approach for improving the phase balance in a group of charging stations is to provide the charging stations with a feature for dynamically selecting the electrical phases being used to recharge an electric vehicle.
- a charging station having three electrical phases as input can be operated to: in some cases, select one of the three phases and transmit it to the electric vehicle; in others, select the three phases and transmit them directly; or, yet in others, select any combination of two of the input phases and transmit them to the electric vehicle.
- a control system can be used for monitoring the load distribution (i.e. the electric vehicles that are being recharged over time) and issue commands to the charging stations indicating which electrical phases are to be used by each and the maximum power that an electric vehicle may consume from the indicated phases.
- the group of charging stations can better adapt to changes in the load distribution and consume power more efficiently than when each charging station is permanently connected to at least one electrical phase of the group.
- Patent application publication WO 2018/127307 A1 discloses such phase balancing solution.
- a phase selection feature that is known to operate correctly with one combination of input electrical signals may not be suitable for another combination.
- the possible combinations of input electrical signals can differ in other ways than the number of electrical phases, as explained above.
- the two input terminals that are supplied with the third electrical phase are typically different in the earthing systems of the TN and IT types. This difference can result in the wrong phase being transmitted to the electric vehicle, which in turn can result in safety risks, cause damage, or create phase balancing problems.
- the safe operability of a phase selection feature is strongly influenced by the combination of input electrical signals.
- a further example of this challenge can be seen by a seller when deciding how to acquire or store a stock of charging stations to be sold later.
- the difficulties observed in this situation are similar to the ones seen by a manufacturer, as it is not possible for the seller to predict with confidence which types and the amounts that will be sold.
- a known solution for this challenge involves providing one charging station for each possible combination of input electric signals. For example, in the case of the electrician, this involves carrying several charging stations to the electrical installation, and only when at the electrical installation’s site using the one that is appropriate.
- This solution is simple but can be very expensive and cause a lot of logistical drawbacks, such as having too many charging stations in stock or having too many charging stations being transported between locations. Also, the electrician can make a mistake and connect a charging station that is not the right one for the electrical installation.
- the invention relates to an arrangement of electric components for controlling the delivery of electricity from an electrical grid (EG) to an electric vehicle (EV), the arrangement comprising:
- a first, a second, a third, and a fourth input terminals each for receiving an electric signal from the EG;
- a first switching component for controlling a connection between a neutral output terminal connectable to the EV and the first input terminal
- a second switching component for controlling a connection between a neutral output terminal connectable to the electrical vehicle and the second input terminal
- a third switching component for controlling a connection between a first-phase output terminal connectable to the EV and the second input terminal
- a fifth switching component for controlling a connection between a first-phase output terminal connectable to the EV and the fourth input terminal.
- the respective first, second, third and fourth input terminals may be conveniently coupled to the respective electric signal carrying cables from the electric grid.
- the two switching components that control the two connections between the neutral out terminal and the first and second input terminals provide for a flexibility as to what earthing configuration is used for the signals on the input terminals.
- the first input terminal will carry a neutral signal, while the other input terminals carry the three respective phase signals.
- the other input terminals carry the three respective phase signals.
- the earlier-mentioned two switching components allow for adaptation to both earthing systems, by simply controlling the setting of these two switching components, such that either the first or the second input terminal is coupled to the neutral out terminal. The impact of this feature is not to be underestimated.
- the invention gives full flexibility as regards the earthing system that is used in the location where the charging station(s) is/are installed.
- the three switching components that control the three connections between the first- phase output terminal and the second, third and further input terminal enable the earlier- mentioned phase balancing, i.e. the respective electrical vehicle may be charged using any one of these three phase signals on the second, third and fourth input terminal.
- the arrangement may comprise:
- a further switching component for controlling a connection between a second-phase output terminal connectable to the EV and the third input terminal
- a further switching component for controlling a connection between a third-phase output terminal connectable to the EV and the fourth input terminal.
- the arrangement may comprise:
- a further switching component for controlling a connection between the neutral output terminal and the third input terminal
- a further switching component for controlling a connection between the first-phase output terminal and the first input terminal
- the arrangement may comprise:
- a further switching component for controlling a connection between a third-phase output terminal connectable to the EV and the fourth input terminal.
- an arrangement of electric components for controlling the delivery of electricity from an EG to an EV comprising:
- a first switching component for controlling a connection between a neutral output terminal connectable to the electrical vehicle and the first input terminal
- a second switching component for controlling a connection between a neutral output terminal connectable to the electrical vehicle and the second input terminal
- a third switching component for controlling a connection between a neutral output terminal connectable to the electrical vehicle and the third input terminal;
- a fourth switching component for controlling a connection between a first-phase output terminal connectable to the electrical vehicle and the first input terminal;
- a fifth switching component for controlling a connection between a first-phase output terminal connectable to the electrical vehicle and the second input terminal
- a sixth switching component for controlling a connection between a first-phase output terminal connectable to the electrical vehicle and the third input terminal
- a seventh switching component for controlling a connection between a second-phase output terminal connectable to the electrical vehicle and the second input terminal ;
- an eighth switching component for controlling a connection between a second-phase output terminal connectable to the electrical vehicle and the third input terminal
- a ninth switching component for controlling a connection between a second-phase output terminal connectable to the electrical vehicle and the fourth input terminal.
- first, the second, and the third input terminals may be connectable to a Terra-Neutral earthing system, so that:
- the first input terminal receives a neutral electrical signal
- the second input terminal receives a first-phase electrical signal
- the third input terminal receives a second-phase electrical signal.
- the fourth input terminal may be connectable to the Terra-Neutral earthing system so that the fourth input terminal receives a third-phase electrical signal.
- the first and the second input terminals may be connectable to any of an Isolated-Terra earthing system or a Terra-Terra earthing system, so that:
- the first input terminal receives a first-phase electrical signal
- the second input terminal receives a second-phase electrical signal.
- the third input terminal may be connectable to the any of an Isolated-Terra earthing system or a Terra-Terra earthing system, so that the third input terminal receives a third-phase electrical signal.
- the first and the second input terminals may be connectable to a split-phase distribution system, so that:
- the first input terminal receives a neutral electrical signal
- the second input terminal receives one of the two line electrical signals of the split-phase distribution system.
- the third input terminal may be connectable to the split-phase distribution system, so that the third input terminal receives the remaining line electrical signal of the split-phase distribution system.
- a switching component may be a relay or a contactor.
- the switching component may also be of a solid-state type, such as a solid-state relay and any other solid-state device that is suitable for switching an electrical connection in a charging station.
- the invention in a second aspect relates to a charging station for recharging an electric vehicle, the charging station comprising an arrangement of electric components as described in any of previous aspects.
- the invention in a third aspect relates to an electric system connected to an electrical safety device that is connected to an electric grid, the electric system comprising a plurality of connectors for connecting the electrical safety device with a set of charging stations in accordance with claim 14, each connector carrying an electrical signal or ground in accordance with a predefined earthing system and electric power distribution type, wherein each charging station is connected to at least a subset of the plurality of the connectors via the arrangement in said charging station, and wherein each arrangement is further connectable to an electric vehicle.
- the electric system in accordance with a third aspect is typically what an electrician would build when installing a set of charging stations in a certain location.
- FIG. 1 is a schematic view of an electric vehicle being recharged by a charging station
- Fig. 2 is a schematic view of an embodiment of an arrangement of electric components for single-phase charging of the electric vehicle in Fig. 1 ;
- Figs. 3A and 3B are two schematic views of three arrangement embodiments for single- phase charging consuming electrical power from two different combinations of electrical signals, in which Fig. 3A shows the activations of switching components in a TN, 3 phases combination and Fig. 3B shows the activations in an IT/TT, 3 lines or a Split-phase 240V combinations;
- Fig. 4 is a schematic view of an embodiment of an arrangement of electric components for single- or three- phase charging of the electric vehicle in Fig. 1 ;
- Fig. 5 is a schematic view of an embodiment of an arrangement of electric components for dual-phase charging of the electric vehicle in Fig. 1 ;
- Figs. 6A and 6B are two schematic views of three arrangement embodiments for dualphase charging consuming electrical power from two different combinations of electrical signals, in which Fig. 6A shows the activations of switching components for a TN, 3 phases combination and Fig. 6B shows the activations for an IT/TT, 3 lines or a Split-phase 240V combinations;
- Fig. 7 is a schematic view of an embodiment of an arrangement of electric components for single- or dual- phase charging of the electric vehicle in Fig. 1 ;
- Fig. 8 is a schematic view of an embodiment of an arrangement of electric components for single-, dual- or three- phase charging of the electric vehicle in Fig. 1.
- FIG. 1 it shows an electric vehicle 102 being recharged.
- the electric vehicle 102 (shown on the lower right corner of Fig. 1) is supplied with electrical power from a charging station 100 including five output terminals: a ground/protective earth output terminal 24; a neutral output terminal 20; a first-phase output terminal 21 ; a second-phase output terminal 22; and a third-phase output terminal 23.
- the connection between the electric vehicle 102 and the charging station 100 is typically implemented using a multi-conductor cable including a standard connector on each end, such as the Type 1/SAE J1772 or the Type 2 connectors established in the international standards IEC 62196.
- conductors for transmitting signalling data may also be provided in the connection between the electric vehicle 102 and the charging station 100. These signalling conductors can be used by the charging station 100 to indicate to the electric vehicle 102 which electrical phases and how much current can be consumed.
- the charging station 100 is part of an electrical installation for recharging electric vehicles, of which only a part of one group of charging stations is shown in Fig. 1.
- the electrical installation in this example is organised as follows: the electrical signals from an electrical grid (not shown) are distributed from a main electrical safety device (this may be the main fuse at a certain location that is fed by an electric network (not shown).
- the main electrical safety device is not shown to facilitate understanding the invention.
- From the main electrical safety device the electrical grid is distributed to an electrical safety device 101 (shown on the left-hand side of Fig. 1) of the group, and then to each of the charging stations within the group, including the charging station 100 (shown in Fig. 1) that is recharging the electric vehicle 102.
- the electric safety device 101 is typically a fuse circuit, which protects the respective groups against drawing excessive current levels (typically limited to 10A, 16A, 25A, or 32A) from the electric grid.
- the charging station 100 receives electrical signals at its input terminals that are distributed by the electrical safety device 101 to the charging stations in the group.
- the input terminals of the charging station 100 are: a ground/protective earth input terminal 10, a first input terminal 1 1 , a second input terminal 12, a third input terminal 13, and a fourth input terminal 14.
- the electrical signals transmitted to the charging station 100 depend on the electrical signals that the electrical installation receives from the electrical grid. Table 1 shows a number of possible combinations for the electrical signals.
- the internal structure of the charging station 100 is shown in a simplified manner in Fig. 1 .
- a direct connection is shown between the ground/protective earth input terminal 10 and the ground/protective earth output terminal 24, but in many cases the ground/protective earth input terminal 10 is also connected to other parts of the charging station 100 for safety purposes.
- the charging station 100 includes an arrangement 1 of electric components for controlling how the electricity from the first, second, third and fourth input terminals 1 1 , 12, 13, 14 is delivered to the neutral, first-phase, second-phase, and third-phase output terminals 20, 21 , 22, 23.
- the representation of the arrangement 1 inside the charging station 100 is also simplified, as several other components may exist between the arrangement 1 and the input terminals 1 1 , 12, 13, 14 as well as between the arrangement 1 and the output terminals 20, 21 , 22, 23.
- the purpose of the arrangement 1 is to provide a phase selection feature for the charging station 1 .
- the arrangement 1 can be instructed to select a certain electrical phase and then it connects the appropriate pair of input terminals to the neutral 20 and first-phase 21 output terminals.
- Fig. 2 shows an embodiment of the arrangement 1 of electric components.
- the arrangement 1 includes a first 1 1 , a second 12, a third 13, and a fourth 14 input terminals for receiving electrical signals, two switching components 21 1 , 221 for controlling which of the input electrical signals is transmitted to a neutral output terminal 20, and three switching components 222, 232, 242 for controlling which of the input electrical signals is transmitted to a first-phase output terminal 21 .
- the arrangement 1 also includes two output terminals 22, 23 that are not being used.
- the arrangement 1 includes five switching components.
- the latter can be implemented with relays, contactors, or any other electric component that allows switching an electrical connection.
- the two switching components 21 1 , 221 connected to the neutral output terminal 20 allow connecting the latter with the first 1 1 and the second 12 input terminals.
- the three switching components 21 1 , 221 connected to the first-phase output terminal 20 allow connecting the latter with the second 12, the third 13, and the fourth 14 input terminals (the connections between input terminals and switching components can be observed in the upper part of Fig. 2).
- the low number of switching components such as relays and contactors, achieves a lower heat loss.
- the physical paths in the internal electronic circuit of the arrangement 1 are also shorter, which results in lower heat losses as well.
- a low amount of heat is generated, and the arrangement 1 can be implemented without requiring any fan or similar cooling devices.
- the arrangement 1 can select one of the electrical phases at the input terminals 1 1 , 12, 13, 14 to be transmitted between the neutral output terminal 20 and the first-phase output terminal 21 .
- the arrangement 1 is thus very adaptable for single-phase charging.
- Figs. 3A and 3B both show three instances of the arrangement 1 embodiment in Fig. 2, each arrangement 301 , 302, 303 being part of a different charging station and each transmitting a different electrical phase to the output terminals of the respective charging station.
- the switching components that are activated are shown in the two figures with a direct line in their interior.
- Fig. 3A the TN, 3 phases combination (see Table 1 ) is used; and in Fig. 3B either the IT/TT, 3 lines or the Split-phase 240V combination (see Table 1 ) is used.
- the three arrangements 301 , 302, 303 are all establishing the following connection: the first input terminal 1 1 , which is receiving a neutral electrical signal, is connected by a switching component 21 1 to the neutral output terminal 20.
- the connection established with the first-phase output terminal 21 varies along the arrangements 301 , 302, 303.
- the first arrangement 301 in which the first electrical phase is selected, the second input terminal 12 is receiving a first-phase electrical signal, and it is connected by a switching component 222 to the first-phase output terminal 21 .
- the third input terminal 13 is receiving a second-phase electrical signal, and it is connected by a switching component 232 to the first-phase output terminal 21 .
- the fourth input terminal 14 is receiving a third-phase electrical signal, and it is connected by a switching component 242 to the first-phase output terminal 21 .
- the chosen activations of the switching components 21 1 , 221 , 222, 232, 242 for achieving the connections in Fig. 3A are suitable for a TN, 3 phases combination (see Table 1). However, this choice of switching components would not work in an IT/TT, 3 lines or a Split-phase 240V combination because the input electrical signals are different. In these latter two cases, the fourth input terminal 14 is not supplied with any electrical signal. Thus, different activations of the switching components in the arrangement 1 need to be chosen.
- each of the arrangements 301 , 302, 303 has one switching component that is not connected to any input terminal (i.e. the one on the right end of each arrangement).
- This representation serves only to illustrate that this switching component is not used, however it could be connected to the fourth input terminal 14, and this would not be problematic because this switching component is not activated in the IT/TT, 3 lines or the Split-phase 240V combinations.
- the first two arrangements 301 , 302 are both establishing the following connection: the first input terminal 1 1 , which is receiving a line 1 signal, is connected by a switching component 21 1 to the neutral output terminal 20.
- the connection established with the first-phase output terminal 21 varies along the two arrangements 301 , 302.
- the second input terminal 12 is receiving a line 2 electrical signal, and it is connected by a switching component 222 to the first-phase output terminal 21 .
- the third input terminal 13 is receiving a line 3 electrical signal, and it is connected by a switching component 232 to the first-phase output terminal 21 .
- the second input terminal 1 1 which is receiving the line 2 electrical signal, is connected by a switching component 221 to the neutral output terminal 20, and the third input terminal 13, which is receiving the line 3 electrical signal, is connected by a switching component 232 to the first-phase output terminal 21 .
- the arrangement 1 in Fig. 2 including five switching components 21 1 , 221 , 222, 232, 242 can select each of the input electrical phases for single phase charging, in any of the following combinations of input electrical signals (see Table 1): TN, 3 phases; IT/TT, 3 lines; and Split-phase 240V.
- Table 1 the selection of any of the two electrical phases supplied in a TN, 2 phases combination (see Table 1) is also possible with the arrangement 1 shown in Fig. 2, for example by activating the switching components as shown for the first two arrangements 301 ,
- the arrangement 1 is also compatible with the following single-phase combinations (see Table 1): TN, 1 phase; IT/TT, 2 lines; and Split-phase 120V.
- Fig. 4 shows an arrangement 1 embodiment similar to the one shown in Fig. 2, additionally including two switching components 233, 244 for connecting the third 13 and fourth 14 input terminals to the second 22 and third 23 phase output terminals, respectively.
- the arrangement 1 includes seven switching components 21 1 , 221 , 222, 232, 242, 233, 244, in total, and can achieve the adaptability in the selection of the electrical phase for single-phase charging, as explained above for Figs. 2, 3A and 3B, as well as achieve a selection of electrical phases for three-phase charging.
- the arrangement 1 can also achieve dual-phase charging, but only for phase selections and combinations of input signals (see Table 1) in which the second-phase output terminal 22 is to be connected with the third input terminal 13 by a switching component 233.
- Table 1 the arrangement 1 in Fig. 4 also achieves a low heat generation, and the arrangement 1 can be implemented without requiring any fan or similar cooling devices.
- Fig. 5 shows an arrangement 1 of electric components for dual-phase charging of the electric vehicle 102 in Fig. 1 .
- the electric vehicle 102 consumes two electrical phases: one is consumed between the neutral output terminal 20 and the first-phase output terminal 21 ; the other is consumed between the neutral output terminal 20 and the second-phase output terminal 22.
- the arrangement 1 includes three switching components 21 1 , 221 , 231 for controlling which of the input electrical signals is transmitted to the neutral output terminal 20, three switching components 212, 222, 232 for controlling which of the input electrical signals is transmitted to the first-phase output terminal 21 , and three switching components 223, 233, 243 for controlling which of the input electrical signals is transmitted to the second-phase output terminal 22.
- the arrangement 1 also includes a third-phase output terminal 23 that is not being used.
- the arrangement 1 includes nine switching components.
- the three switching components 21 1 , 221 , 231 connected to the neutral output terminal 20 allow connecting the latter with the first
- the arrangement 1 can select two electrical phases at the input terminals 1 1 ,
- the arrangement 1 is thus very adaptable for dual-phase charging.
- Figs. 6A and 6B follow a similar illustration to the one shown in Figs. 3A and 3B for the arrangement 1 in Fig. 2. That is, three instances of the arrangement 1 embodiment in Fig. 5 are shown, each arrangement 601 , 602, 603 being part of a different charging station and each transmitting a different pair of electrical phases to the output terminals of the respective charging station.
- the switching components that are activated are shown in the two figures with a direct line in their interior. In order to simplify the drawings, Figs. 6A and 6B only show the switching components that are activated in each arrangement.
- Fig. 6A the TN, 3 phases combination (see Table 1) is used; and in Fig. 6B either the IT/TT, 3 lines or the Split-phase 240V combination (see Table 1) is used.
- the three arrangements 601 , 602, 603 are all establishing the following connection: the first input terminal 11 , which is receiving a neutral electrical signal, is connected by a switching component 211 to the neutral output terminal 20.
- the connections established with the first-phase output terminal 21 and the second-phase output terminal 22 varies along the arrangements 601 , 602, 603.
- the second input terminal 12 is receiving a first-phase electrical signal, and it is connected by a switching component 222 to the first-phase output terminal 21
- the third input terminal 13 is receiving a second-phase electrical signal, and it is connected by a switching component 233 to the second-phase output terminal 22.
- the second input terminal 12 is also receiving the first-phase electrical signal, and it is connected by a switching component 222 to the first-phase output terminal 21 , but the fourth input terminal 14 is receiving a third-phase electrical signal, and it is connected by a switching component 243 to the second-phase output terminal 22.
- the third input terminal 13 is receiving a second-phase electrical signal, and it is connected by a switching component 232 to the first-phase output terminal 21
- the fourth input terminal 14 is receiving the third-phase electrical signal, and it is connected by a switching component 243 to the second-phase output terminal 22.
- the chosen activations of the switching components 211 , 221 , 231 , 212, 222, 232, 223, 233, 243 for achieving the connections in Fig. 6A are suitable for a TN, 3 phases combination (see Table 1). However, this choice of switching components would not work in an IT/TT, 3 lines or a Split- phase 240V combination because the input electrical signals are different. In these latter two cases, the fourth input terminal 14 is not supplied with any electrical signal. Thus, different activations of the switching components in the arrangement 1 need to be chosen.
- the connections of switching components and the input terminals can be observed in the upper half of Fig. 6B as follows.
- the first input terminal 1 1 is receiving a line 1 electrical signal, and it is connected by a switching component 21 1 to the neutral output terminal 20;
- the second input terminal 12 is receiving a line 2 electrical signal, and it is connected by a switching component 222 to the first-phase output terminal 21 ;
- the third input terminal 13 is receiving a line 3 electrical signal, and it is connected by a switching component 233 to the second-phase output terminal 22.
- the second input terminal 12 receiving the line 2 electrical signal is connected by a switching component 221 to the neutral output terminal 20; the first input terminal 1 1 receiving the line 1 electrical signal is connected by a switching component 212 to the first-phase output terminal 21 ; and the third input terminal 13 is receiving the line 3 electrical signal is connected by a switching component 233 to the second-phase output terminal 22.
- the third input terminal 13 receiving the line 3 electrical signal is connected by a switching component 231 to the neutral output terminal 20; the first input terminal 1 1 receiving the line 1 electrical signal is connected by a switching component 212 to the first-phase output terminal 21 ; and the second input terminal 12 receiving the line 2 electrical signal is connected by a switching component 223 to the second-phase output terminal 22.
- the arrangement 1 in Fig. 5, including nine switching components 21 1 , 221 , 231 , 212, 222, 232, 223, 233, 243 can select pairs of electrical phases for dual-phase charging, in any of the following combinations of input electrical signals (see Table 1): TN, 3 phases; IT/TT, 3 lines; and Split-phase 240V.
- Fig. 7 shows an arrangement 1 embodiment combining the embodiments shown in Fig. 2 and Fig. 5.
- the arrangement 1 allows single- or dual- phase charging of the electric vehicle in Fig. 1 .
- the arrangement 1 includes an additional switching component 242 for connecting the fourth input terminal 14 to the first-phase output terminal 21 .
- the arrangement 1 has a total of ten switching components 21 1 , 221 , 231 , 212, 222, 232, 242, 223, 233, 243.
- Fig. 8 shows an arrangement 1 embodiment combining the embodiments shown in Fig. 4 and Fig. 5.
- the arrangement 1 allows single-, dual- or three- phase charging of the electric vehicle in Fig. 1 .
- the arrangement 1 includes an additional switching component 244 for connecting the fourth input terminal 14 to the third-phase output terminal 23.
- the arrangement 1 has a total of eleven switching components 21 1 , 221 , 231 , 212, 222, 232, 242, 223, 233, 243, 244.
- the invention is further defined by the following items.
- Item 1 An arrangement 1 of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle 102, the arrangement comprising:
- three switching components 222, 232, 242 for controlling three connections between a first- phase output terminal 21 connectable to the electrical vehicle 102 and the second, the third, and the fourth input terminals 12, 13, 14.
- a switching component 233 for controlling a connection between a second-phase output terminal 22 connectable to the electrical vehicle 102 and the third input terminal 13, and
- a switching component 244 for controlling a connection between a third-phase output terminal 23 connectable to the electrical vehicle 102 and the fourth input terminal 14.
- a switching component 231 for controlling a connection between the neutral output terminal 20 and the third input terminal 13;
- a switching component 212 for controlling a connection between the first-phase output terminal 21 and the first input terminal 1 1 ; and three switching components 223, 233, 243 for controlling three connections between a second-phase output terminal 22 connectable to the electrical vehicle 102 and the second, the third, and the fourth input terminals 12, 13, 14.
- a switching component for controlling a connection between a third-phase output terminal connectable to the electrical vehicle 102 and the fourth input terminal.
- three switching components 21 1 , 221 , 231 for controlling three connections between a neutral output terminal 20 connectable to the electrical vehicle 102 and the first, the second, and the third input terminals 1 1 , 12, 13;
- the first input terminal 1 1 receives a neutral electrical signal
- the second input terminal 12 receives a first-phase electrical signal
- the third input terminal 13 receives a second-phase electrical signal.
- Item 7 Arrangement 1 according to item 6, wherein the fourth input terminal 14 is connectable to the Terra-Neutral earthing system so that the fourth input terminal 14 receives a third-phase electrical signal.
- Item 8 Arrangement 1 according to any of the items 1 to 5, wherein the first and the second input terminals 1 1 , 12 are connectable to any of an Isolated-Terra earthing system or a Terra-Terra earthing system, so that:
- the first input terminal 1 1 receives a first-phase electrical signal
- the second input terminal 12 receives a second-phase electrical signal.
- Item 9 Arrangement 1 according to item 8, wherein the third input terminal 13 is connectable to the any of an Isolated-Terra earthing system or a Terra-Terra earthing system, so that the third input terminal 13 receives a third-phase electrical signal.
- Item 10 Arrangement 1 according to any of the items 1 to 5, wherein the first and the second input terminals 1 1 , 12 are connectable to a split-phase distribution system, so that:
- the first input terminal 11 receives a neutral electrical signal
- the second input terminal 12 receives one of the two line electrical signals of the split- phase distribution system.
- Item 11 Arrangement 1 according to item 10, wherein the third input terminal 13 is connectable to the split-phase distribution system, so that the third input terminal 13 receives the remaining line electrical signal of the split-phase distribution system.
- Item 12 Arrangement 1 according to any of the preceding items, wherein a switching component is a relay.
- Item 13 Arrangement 1 according to item 12, wherein the relay is a contactor. Item 14. A charging station 100 for recharging an electric vehicle 102, the charging station
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
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Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
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SG11202106914RA SG11202106914RA (en) | 2019-02-11 | 2020-02-05 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
JP2021546879A JP2022531052A (en) | 2019-02-11 | 2020-02-05 | Charging station and electric component array that control the power supply from the power system to the electric vehicle |
CA3129040A CA3129040A1 (en) | 2019-02-11 | 2020-02-05 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
AU2020221143A AU2020221143B2 (en) | 2019-02-11 | 2020-02-05 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
US17/428,838 US11949236B2 (en) | 2019-02-11 | 2020-02-05 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
MX2021009403A MX2021009403A (en) | 2019-02-11 | 2020-02-05 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle. |
BR112021013851-0A BR112021013851A2 (en) | 2019-02-11 | 2020-02-05 | CHARGING STATION AND ARRANGEMENT OF ELECTRICAL COMPONENTS TO CONTROL THE TRANSFER OF ELECTRICITY FROM AN ELECTRICAL GRID TO AN ELECTRIC VEHICLE |
CN202080013594.3A CN113423603A (en) | 2019-02-11 | 2020-02-05 | Charging station and electrical component arrangement for controlling the transfer of power from an electrical grid to an electric vehicle |
EP20754895.9A EP3924214A4 (en) | 2019-02-11 | 2020-02-05 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
KR1020217020089A KR20210125475A (en) | 2019-02-11 | 2020-02-05 | Device of charging stations and electrical components for controlling the supply of electricity from the power grid to the electric vehicle |
ZA2021/04554A ZA202104554B (en) | 2019-02-11 | 2021-06-30 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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NO20190184A NO20190184A1 (en) | 2019-02-11 | 2019-02-11 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
NO20190184 | 2019-02-11 |
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PCT/NO2020/050028 WO2020167132A1 (en) | 2019-02-11 | 2020-02-05 | Charging station and arrangement of electric components for controlling the delivery of electricity from an electrical grid to an electric vehicle |
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US (1) | US11949236B2 (en) |
EP (1) | EP3924214A4 (en) |
JP (1) | JP2022531052A (en) |
KR (1) | KR20210125475A (en) |
CN (1) | CN113423603A (en) |
AU (1) | AU2020221143B2 (en) |
BR (1) | BR112021013851A2 (en) |
CA (1) | CA3129040A1 (en) |
MX (1) | MX2021009403A (en) |
NO (1) | NO20190184A1 (en) |
SG (1) | SG11202106914RA (en) |
WO (1) | WO2020167132A1 (en) |
ZA (1) | ZA202104554B (en) |
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EP4005860A1 (en) * | 2020-11-26 | 2022-06-01 | Zeta Specialist Lighting Limited | System and method for dynamic phase load balancing for electric vehicle chargers |
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CA3129040A1 (en) | 2020-08-20 |
ZA202104554B (en) | 2022-04-28 |
AU2020221143A1 (en) | 2021-07-15 |
AU2020221143B2 (en) | 2023-02-02 |
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