WO2019008218A1 - Reconnaissance et sélection des phases d'un dispositif de charge de véhicule électrique - Google Patents

Reconnaissance et sélection des phases d'un dispositif de charge de véhicule électrique Download PDF

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Publication number
WO2019008218A1
WO2019008218A1 PCT/FI2017/050523 FI2017050523W WO2019008218A1 WO 2019008218 A1 WO2019008218 A1 WO 2019008218A1 FI 2017050523 W FI2017050523 W FI 2017050523W WO 2019008218 A1 WO2019008218 A1 WO 2019008218A1
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WO
WIPO (PCT)
Prior art keywords
power supply
phase
phases
devices
current
Prior art date
Application number
PCT/FI2017/050523
Other languages
English (en)
Inventor
Heikki Suonsivu
Jouni Saari
Jorma Rinkinen
Original Assignee
Parkkisähkö Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Parkkisähkö Oy filed Critical Parkkisähkö Oy
Priority to PCT/FI2017/050523 priority Critical patent/WO2019008218A1/fr
Publication of WO2019008218A1 publication Critical patent/WO2019008218A1/fr

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Classifications

    • 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
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/12—The local stationary network supplying a household or a building
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—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]
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging
    • 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
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • the invention relates to the automatic recognition of the supply wires and phases of supply wires of electric devices after an electrical installation and the selection of the phases when charging electric vehicles.
  • the AC charging devices of an electric car are able to utilize at least one phase, usually also three. Two phases is also a possibility.
  • the charging device in a car or vehicle is not capable of adjusting the power from different phases separately but generally only one phase is used or the same power is drawn from two or more phases each.
  • the AC charging station of an electric car e.g., a Type 2 charging station is not capable of adjusting the electric power supplied for the car on its own but the EVSE (Electric Vehicle Supply Equipment) connected to the charging device passes the control information between the charging station and the actual battery charger located in the car.
  • the charging station can change the maximum power drawn by the charger located in the car through the EVSE.
  • the charger can draw less than the maximum power, e.g., when the battery is almost full or it is too cold or hot.
  • the adjusting of the maximum power can be used to limit the power as necessary.
  • the capacity of a wire supplying several chargers may be a limiting factor, as well as the other electricity consumption of the building, such as in Finland the use of a sauna or electricity for heating.
  • the recognition of the phases in a three-phase system must be made by turning on one phase at a time and testing or measuring which devices or wires are connected to that phase.
  • the colour codes of the wiring are not reliable for the recognition of the phases.
  • the wires for two phases may often be of the same colour,
  • the object of the invention is to document the electric wiring automatically, including the phase, and preferably also the wiring order and fuse grouping.
  • a further object of the invention is to reconfigure the use of multiple phases or wires connected to different fuses so that the electricity connection capacity will be used efficiently.
  • the invention may allow automatic configuration of the system so that the devices can solve the wiring of different phases and cabling of wiring connected to each fuse of a circuit breaker. Further, the devices may change the phase or fuse used for charging, so that all the fuses or phases in a multi-phase system can be loaded more equally and overloading can be avoided.
  • the power supply devices located in a parking area are often supplied by three phases so that each phase has only one supply fuse. In this case, it is enough to recognize the phases to examine the fuse group distribution. If several fuses or circuit breakers, each of which has several pieces of power supply equipment connected to them, are connected to the same phase, it is still possible to be spared from the documentation work and avoid errors by examining the connections of the phases of the power supply devices. If it is possible to recognize which phase each power supply device is connected to, the supply wires of power supply devices connected to the same phase but a different supply wire's fuse can be examined with less work.
  • a power supply device may be an intelligent device that has voltage and current meters for energy consumption metering, a processor, and a network connection.
  • the device may be installed in place of the socket case of a block heater pole in order to make an easy retrofit to the existing hardware.
  • the power supply device can also be decentralized, in which case, e.g., the current and voltage measuring devices can be installed separately apart from the central unit and/or sockets.
  • the charging device of rechargeable batteries or a heater device can act as a power supply device in this context with respect to the invention, even though these devices consume the power themselves and do not supply power to be sold elsewhere.
  • the supply device in the context of the application may consume the energy by itself.
  • Fig. 1 presents an example of the topology of power supply in a parking area.
  • Fig. 2 presents the graphs of the phase voltages of the three-phase supply as a function of time.
  • Fig. 3 presents a schematic of one embodiment of a phase selection circuit.
  • Fig. 4 presents a second embodiment of a phase selection circuit.
  • the phases of the power supply will be identified.
  • the phases can be identified by using the identification of the zero-crossing of the voltage or any other corresponding comparison of phase, and in power supply devices, a clock calibrated through a data transfer connection.
  • an intelligent power supply device has exact means for measuring the voltage and current for electricity billing anyway. Therefore, an implementation of the invention does not necessarily require additional hardware on networked power supply devices with energy metering hardware.
  • power supply devices (2) have been connected chained and branched.
  • the electronics of the power supply device (2) connects to at least one phase.
  • the wires between the power supply devices can have 1 to 3 different phases, which are often connected so that approximately the same number of power supply devices have been connected to each phase.
  • Some of the wiring (3) can be constructed only using one-phased or two-phased cabling.
  • the number of wires drawn in the wiring of the figure is a simplified example where all three-phase wires have been wired from the supply point to only some of the power supply devices.
  • the power supply devices themselves can use 1 to 3 different phases, so a one-phase power supply device will be connected to one phase, or the power supply device can choose the phase or phases that will be used.
  • each socket case often has 1 or 2 sockets with a clock switch connected to them either to the same phase or two different phases.
  • Each socket case or each socket may have their own fuse.
  • the fuse or circuit breaker meant for one socket or for two sockets is scaled for a considerably smaller current than the supply cabling would support.
  • the fuses of the block heater pole may limit the amperage to 5 amperes per socket, even if the wiring were to allow a total current of 60 amperes per phase for 12 sockets. If the same cabling is used for charging of electric vehicles, it is advantageous to allow higher power and use known load balancing to limit the total power under total current limit by limiting the charge powers and/or by keeping some chargers waiting for their turns.
  • the power supply devices (2) of the parking area are replaced with intelligent ones.
  • the topology and the ability to supply power of the existing cabling still remaining in use must be examined so that the existing cabling can be utilized as efficiently as possible.
  • the topology of the cabling it is possible, if needed or desired, to instruct the users to choose the power supply devices efficiently from the perspective of the whole system. For example, the cabling losses are minimized if the closest outlets are used for largest power and the phases or wires are equally loaded.
  • Figures 3 and 4 present the principle of the possible configuration of the phase selection switches.
  • Figure 3 uses a three-way switch Sw P i for the selection of phase to output phase PI.
  • P x i... P x2 are the phases from the parking lot cabling, and they may not be in the same order in all devices. Multiple throw switches are not readily available as relays; therefore it may be difficult to source the parts for the configuration in Figure 3.
  • One option is to use only a double-throw switch that allows the selection between two input phases only, or a series of two double-throw switches that will allow the selection of all three phases.
  • the solution of Figure 3 has the benefit of not allowing short circuiting two phases even if a switch is welded and gets stuck in one position.
  • Figure 4 presents a system with normal relays.
  • the relay logic must be carefully designed so that only one input phase is connected to each output at the same time. Further, before closing a switch, it is recommendable to measure that the other input phase switches are really open. Relays may get welded to closed position which would cause a short circuit between two phases. This is likely to cause damage to the device and at least blow up the main fuses of the system. The measurement may be made, for example, by feeding a high impedance voltage to one side of the switch and checking that the other side of the switch is not connected to that voltage by any switch.
  • Switches Swi to Sw 3 are not mandatory to use but they are redundant. They may be circuit breakers that can be used to break the current flow. That allows the use of selection switches Swn to Sw 3 3 that are not well suited for breaking the full load.
  • the short circuit maximum current value may limit the allowable power of the system. That may be partly worked around by using intermediate fuses or circuit breakers between the chained devices. The beginning of the chain may then be allowed a higher total current.
  • the added circuit breaker device may comprise also a current meter and network devices. That would allow a simple resolving of the topology, namely the devices after the intermediate circuit breaker can be easily recognized from current measurement values.
  • a power supply device supplying one phase is connected to two or more phases, it is possible to change the phase wire each power supply is using and hence balance the power supply load of the entire parking lot. Even if a part of the power supply devices are capable of changing the power supply wire or wires when supplying 1 to 2 phases, the capacity of the entire power supply system can be utilized more efficiently and it is possible to react to changes in the power usage.
  • the switching of the phases can be executed without current, in which case the power supply device suspends the charging while the phase is changed. In this case, the switches and relays executing the phase selection need not endure the sparking caused by switching the power on or off, and the relay or switch need not be scaled to disconnect large currents.
  • the first phase when supplying or using only one phase, at least the first phase must always be available. If only the second or third phase is available, the car does not start charging.
  • the frequency of the three-phase current of the electricity network is 50 Hz in Finland and elsewhere in Europe; the largest commonly used frequencies in the world are 60 Hz.
  • the sequence of the three-phase currents is 20 ms in Finland, and the time difference between different phases is 20 ms/3, i.e.,
  • NTP Network Time Protocol
  • the devices operating within the same WLAN base station or local network are capable of synchronizing their clocks accurately enough.
  • the NTP calibration can be performed for a server located in internet near the installation site, or one of the power supply devices can act as an NTP server for the others. In Figure 2, this server may be same as referenced by number 2.1 and letter S, or it may be any other device. Also a proprietary time synchronization can be used to spread the synchronized time in peer to peer manner.
  • the NTP server need not handle the measurement data; instead, the data can be sent through another server or a connection gateway to a server located in public Internet that will solve the topology of the cabling of the parking lot based on the measurement data.
  • the installer can have a server for synchronizing the clock and other uses with oneself.
  • a public NTP server can be used when the delays of the Internet connection are so constant that it is possible to reliably get a repeatability of an order of milliseconds for the measuring of time. It must be noted that the absolute time need not be exact as long as the system clocks have the same time at the time of measuring the phase. This can be ensured by synchronizing the clocks before measuring the phase and by checking after the measurement that the clocks still have the same time within a sufficient accuracy.
  • one or more processors of the power supply devices will act as a time server in the local network and, if needed, further as a gateway to a public time server or a time server located outside the parking lot.
  • the clocks need not have the exact right time. It is sufficient that the clocks have the same time adequately enough during the phase measurement. Should there be a connection to a public NTP server whose delays fluctuate too much, a local calibration of time must be used. The easiest way to ensure the adequate
  • simultaneousness of the clocks is to accept only those NTP queries where the delays back and forth were smaller or at most of the same order than the required accuracy for the calibration.
  • the same absolute time in all power supply devices enables the synchronization of the voltage and current measurements, allowing the system to resolve the topology of the cabling without additional hardware by measuring the cable voltage drops in different load situations.
  • the clocks can be calibrated by using a GPS or other navigation satellite receiver.
  • the return channel can also then be a WLAN or other wired or wireless data transfer network.
  • the network power cables can also be used for data transfer.
  • the signal used to synchronize the clock can then be repeated after certain intervals, e.g., once per second or once per ten seconds.
  • the beacon signal itself does not necessarily need any other information in addition to the time stamp itself, as the clocks can be synchronized by using another data transfer channel at the same time precisely enough.
  • the beacon signal can also be synchronized to one phase of the supply voltage; then the power supply devices can simply compare only the beacon signal and the phase of the supply voltage.
  • the beacon signal can be, e.g., a 433.92 MHz RF link or a Bluetooth connection. Since the delays cannot be measured back and forth, the transmission and the reception must be delayless enough; then the connection in use must not utilize any protocol or buffering that can cause a fluctuating delay or too large a delay.
  • the errors caused by the fluctuation of the supply voltage frequency or phase can be avoided by measuring the phase difference of each power supply device compared to the calibrated time at the same moment when all power supply devices are measuring the phase of the same cycle or several consecutive cycles at the same time.
  • phase recognition based on the comparison of the phases can be executed without the need to, e.g., connect one phase at a time on or off. This is how the topology of the cabling can be examined without the need for the system installer to be able to connect different phases on or off. The system is able to document itself automatically without the installer needing any special instructions. In addition, the phase recognition allows the distinction of the phases even if the same phase was connected to several different fuses.
  • the system can comprise the means to measure the voltage accurately during a certain period of time.
  • An accurate voltage measurement allows the measurement of the voltage loss caused by resistive losses by comparing the voltages measured by different power supply devices.
  • the power supply devices also measure the current supplied by themselves, it is discovered which device or devices produce current for the supply wires.
  • the voltage losses e.g., between the phase and neutral and/or between neutral and protective ground
  • the voltage losses of the wiring are discovered for a certain current; then also the location of the different power supply devices in a chained power supply cabling is discovered.
  • the resistance of a 10 mm 2 copper conduit is 1.83 mQ/m.
  • a 10 A current causes an 18.3 mV voltage loss both to the neutral wire and the phase wire.
  • the voltage loss between two power supply devices is 100 mV both in the neutral wire and the phase wire. This is more than the voltage measurement resolution required from the power supply device.
  • the individual differences between different voltage and current meters can be compensated by accumulating the voltage measurement data also when none of the power supply devices is supplying power.
  • the resistive voltage loss changes the voltage only along the cables transferring power.
  • the branches without loads have the same voltage in every measurement point, i.e., the branch without a load has the same voltage everywhere as it has at the beginning of the branch.
  • the resistance of the cabling it is also possible to measure the resistance of the cabling, and with the help of the resistance it is possible to estimate the lengths of the cables if the thickness of the cables is known.
  • the resistances of the wiring and the joints will be measured after the installation; then the received measurements can be used for later monitoring of the condition of the installation.
  • the system also detects where in the cabling there is possible electricity consumption or power supply to the network past the
  • the invention allows load balancing of an installation even without measuring the total current load of the fuses. If the common supply current to multiple power supply devices is measured, the measurement may further be used for resolving the grouping of the devices by comparing the current in fuses with load changes. If there are loads that are not controlled by the system, the fuse current measurement can be used for protection of the fuses. That case the system can still resolve the rough topology and position of those unmeasured loads. Also the system can detect faulty loads or stealing of electricity.

Abstract

L'invention concerne un système d'alimentation électrique d'une zone de stationnement qui comprend un groupe de dispositifs d'alimentation électrique (2) qui ont été connectés, au moyen d'un câblage conçu selon une topologie au moins partiellement en chaîne, à au moins une phase de courant alternatif P1, P2, P3, et au moins un serveur (S, 2.1), et des moyens de transfert de données pour collecter et traiter des données vers un serveur, le système comprenant des moyens pour synchroniser le temps d'horloge des dispositifs d'alimentation électrique, et des moyens pour mesurer des informations de changement de tension afin de résoudre des informations de topologie du câblage.
PCT/FI2017/050523 2017-07-07 2017-07-07 Reconnaissance et sélection des phases d'un dispositif de charge de véhicule électrique WO2019008218A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FI2017/050523 WO2019008218A1 (fr) 2017-07-07 2017-07-07 Reconnaissance et sélection des phases d'un dispositif de charge de véhicule électrique

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Application Number Priority Date Filing Date Title
PCT/FI2017/050523 WO2019008218A1 (fr) 2017-07-07 2017-07-07 Reconnaissance et sélection des phases d'un dispositif de charge de véhicule électrique

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CN111600335A (zh) * 2020-05-19 2020-08-28 南京理工大学 一种微型智能电站电路拓扑结构及其能量管理策略
RU2775282C1 (ru) * 2019-02-11 2022-06-29 Иси Ас Зарядная станция и схема электрических компонентов для управления подачей электроэнергии из электрической сети на электрическое транспортное средство
WO2023172145A1 (fr) * 2022-03-09 2023-09-14 Enua As Ensemble pour charge de réseau à phase variable

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