JP6619898B1 - DC-fed electric vehicle management system and DC-fed electric vehicle management method - Google Patents

Abstract

Provided is a DC-powered electric vehicle charging system that can use a DC power supply spot in an area. A DC power supply electric vehicle management system (100) includes a DC power supply bus (DL) having a predetermined voltage in a managed area, and a connection that receives power from the DC power supply bus (DL) and supplies DC power to an electric vehicle (V). A connection device 70 having a portion JL, when the electric vehicle V is physically connected to the connection portion JL, acquires the electric vehicle identification information given to the electric vehicle V, and Based on the body identification information, it is determined whether or not the electric vehicle V is a power-supplying electric vehicle. When it is determined that the electric vehicle is a power-supplying electric vehicle, the connection device 70 connects the DC power bus DL with the electric vehicle V. DC power is supplied from the connecting portion JL to the electric vehicle V until the electric vehicle is electrically connected and reaches the storable capacity of the electric vehicle V or until the electric vehicle V is disconnected from the connecting portion JL. [Selection diagram] Fig. 1

Description

  The present invention relates to a DC-fed electric vehicle charging system and a DC-fed electric vehicle management method.

  For existing wind power generation facilities in a certain region, the power selling period for the power system for 20 years specified in the FIT (Fixed Price Purchase System for Renewable Energy) contract will end soon. The operation of wind power generation facilities after the end of the power sale period was desired.

  Plug-in hybrid electric vehicles and pure electric vehicles equipped with large-capacity storage batteries are attracting attention against the background of soaring fossil fuel prices, consideration for the environment, and prevention of global warming, and the market is expanding rapidly. This trend is expected to accelerate further.

Japanese Patent Laid-Open No. 2006-103971

  However, the electric vehicle requires a power supply facility of a normal charging type that requires a long charging time or a quick charging type that can be charged in a short charging time, which is disposed at a predetermined position. Patent Document 1 proposes securing a charging capacity by connecting a quick charging device. The existing charging device basically receives power supply from an AC commercial power system via the charging device. Therefore, if it is going to improve a charging environment, it will be necessary to newly install a charging equipment in these commercial electric power systems, and will become a big cost burden.

  On the other hand, in order to make effective use of existing wind power generation facilities, it has been desired to operate by switching to a self-consumption type power supply in the region. Furthermore, there are solar power generation facilities, private power generation facilities, and the like in the area. For this reason, the inventors examined the charging method and the configuration of the electric mobile body that effectively uses the power generation facilities in the area, without being limited to the charging method of the existing electric vehicle.

  The present invention has been made to solve the above-described problems, and provides a DC-fed electric vehicle management system and a DC-fed electric vehicle management method capable of using a DC feeding spot in a region. With the goal.

In order to achieve the above object, a DC-fed electric vehicle management system according to the present invention provides an output of a power generation facility that uses natural energy with a power converter that outputs a predetermined DC voltage in an output area in a managed area. From an output of an internal combustion power generation facility having a power converter that outputs a predetermined DC voltage in the output unit, an output of a storage battery having a power converter that outputs a predetermined DC voltage in the output unit, and a commercial power system It consists of a DC power supply bus that supplies DC power of a predetermined voltage , which is configured by a combination of outputs of a power supply facility equipped with a power converter that outputs a predetermined DC voltage to the required power supply, an energizing switch, and a connection part. electric through the power supply cable DC from the power supply bus by receiving DC power supplied to the connection portion, for connecting the power receiving connection part arranged on the connecting portion and the electric vehicle when turning on the power switch And a plurality of connection devices for supplying DC power to the moving body, when the electric vehicle is physically connected by a power supply cable to the connecting portion, obtains the electric vehicle identification information given to the electric vehicle Then, based on the electric vehicle identification information, it is determined whether or not the electric vehicle is a power supply target electric vehicle, and when the electric vehicle is determined to be a power supply target electric vehicle, the connecting device is connected to the DC power supply bus and the electric vehicle. Are connected, and DC power is supplied from the connecting portion to the electric vehicle until the electric storage capacity of the electric vehicle is reached or until the electric vehicle is disconnected from the connecting portion. . Other aspects of the present invention will be described in the embodiments described later.

  According to the present invention, the electric vehicle can use a DC power supply spot in the area.

It is a figure which shows the structure of the direct current feeding electric vehicle management system of the management area which concerns on this embodiment. It is a figure which shows the structure of the electrically-driven moving body which concerns on this embodiment. It is a figure which shows the structure of the management apparatus which concerns on this embodiment. It is a figure which shows an example of the fixed information of the memory | storage part which concerns on this embodiment. It is a figure which shows an example of the fluctuation | variation information of the memory | storage part which concerns on this embodiment. It is a flowchart which shows the example of the accounting process of the management apparatus which concerns on this embodiment. It is a figure which shows the structure of the selection apparatus and electrical insulation apparatus which concern on this embodiment. It is a flowchart which shows the process of the normal charge mode of the management apparatus which concerns on this embodiment. It is a flowchart which shows the process of the quick charge mode of the management apparatus which concerns on this embodiment. It is a figure which shows the structure of the voltage compensation apparatus which concerns on this embodiment. It is a figure which shows the example of the solar panel installed in the sidewalk which concerns on this embodiment. It is a figure which shows the arrangement structural example of the connection part which concerns on this embodiment. It is a figure which shows the circuit structural example of the connection apparatus which concerns on this embodiment. It is a figure which shows the other structure of the electric power feeding spot of the management area which concerns on this embodiment.

DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 is a diagram showing a configuration of a DC-fed electric vehicle management system 100 in the management area A1 according to the present embodiment. The DC-fed electric vehicle management system 100 includes a first power generation facility 10 that is a wind power generation facility of one or more renewable energies that supplies power to a specific management area A1, and a solar power generation facility of one or more renewable energies. The second power generation facility 20, one or more third power generation facilities 30 that generate power by operating the heat engine, the supply facility 40 from the AC system of the commercial power system 41, the first power generation facility 10, and the second power generation The DC power supply bus DL is configured by physically connecting the power storage equipment 50 for storing and discharging surplus power of the equipment 20 and the third power generation equipment 30 and the output unit of the DC power supply device to the same power line (DC power supply bus DL). The power supply connection device 60 includes a connection device 70 that physically connects the electric vehicle V to the DC power supply bus DL, and a management device 80 that controls the amount of power supplied to the management area A1. The connection device 70 includes an energization switch 71 and a connection portion JL (power feeding spot).

  The first power generation facility 10 is connected to the DC power supply bus DL after the AC power from the wind power generator 11 is converted into DC power of a predetermined voltage by the power converter 12. Similarly, the second power generation facility 20 is connected to the DC power supply bus DL after the DC power from the solar power generator 21 is converted into DC power of a predetermined voltage by the power converter 22. The third power generation facility 30 is connected to the DC power supply bus DL after converting the AC power of the generator 31 that generates power by operating the heat engine into DC power of a predetermined voltage by the power converter 32. Supply facility 40 is connected to DC power supply bus DL after AC power of commercial power system 41 is converted to DC power of a predetermined voltage by power converter 42. The power storage facility 50 is connected to the DC power supply bus DL after the DC power of the power storage device 51 is converted by the power converter 52. In FIG. 1, the supply facility 40 is disconnected from the DC power supply bus DL because the power demand in the system is sufficient.

  The DC-fed electric vehicle management system 100 further includes a connection device 70A that physically connects the electric vehicle V to the DC power supply bus DL, and a rapid charging power converter 65 between the DC power supply bus DL and the connection device 70A. It has.

  The DC power supply bus DL has one or more connection portions JL (power feeding spots) for supplying electric power to the electric vehicle V via the connection devices 70 and 70A. The electric vehicle V is supplied with power via a cable C having connecting portions JC1 and JC2 (see FIG. 2) at both ends. In a state where the cable C to the electric vehicle V is not connected, the connection devices 70 and 70A are blocked. Details of the connection device 70 will be described with reference to FIGS.

  Further, the DC power supply bus DL is provided with a voltage compensation device 90 that compensates for a voltage drop at a predetermined position, and a predetermined voltage is supplied to all the connecting portions JL provided in the DC power supply bus. Details of the voltage compensator 90 will be described with reference to FIGS.

  The third power generation facility 30 is, for example, a wood gasification generator, a liquefied natural gas generator, a biogas generator, a gasoline engine, a diesel engine, a gas engine, a kerosene engine, a rotary engine, a power generation facility using a gas turbine, or the like. Since the wood gasification power generator generates power using thinned wood or the like to be discarded, there is an advantage that the cost can be reduced in the DC-fed electric vehicle management system 100.

  The configurations of the first power generation facility 10 and the second power generation facility 20 are not particularly limited, but the first power generation facility 10 and the second power generation facility 20 are preferably generators using renewable energy. The third power generation facility 30 is preferably a private power generator with a low power generation cost.

  In the present embodiment, the existing wind power generation facility in the management area (region) will soon end its power selling period to the power system for 20 years specified by the FIT (Fixed Price Purchase System for Renewable Energy) We planned to operate the wind power generation facilities after the end of the electricity sales period. By operating wind power generation facilities and solar power generation facilities, it is possible to supply power to the region without incurring fuel costs.

  In addition, when the amount of power generation in the wind power generation facility and solar power generation facility is insufficient for the required load, for example, a wood gasification generator performs additional cooking operation to increase the power generation output and supply additional power can do.

  The management device 80 selects the normal charging mode when the electric vehicle V is physically connected to the DC power supply bus DL via the connection device 70, and the electric vehicle identification information given in advance to the electric vehicle V is displayed. The non-running mode is set for the electric vehicle V when the electric vehicle identification information is acquired and determined as registration information that can be electrically connected to the DC power source bus DL, and is necessary for the electric vehicle V from the DC power source bus DL. The amount of DC power is supplied to charge the power storage device 4 (see FIG. 2) mounted on the electric vehicle V, and when the required amount of DC power is supplied to the electric vehicle V, the non-running mode is canceled. The DC power source bus DL and the electric vehicle V are disconnected.

  In addition, the management device 80 selects the quick charge mode when the electric vehicle V is physically connected to the quick charge power converter 65 via the connection device 70A, acquires the electric vehicle identification information, When the electric vehicle identification information is determined to be registered information that can be electrically connected to the rapid charging power converter 65, the non-running mode is set for the electric vehicle V, and the direct current is passed through the rapid charging power converter 65. A required amount of high-voltage, large-capacity DC power supplied from the power supply bus DL is supplied to the electric vehicle V to charge the power storage device 4 (see FIG. 2) mounted on the electric vehicle V, and the electric vehicle V When the necessary amount of DC power is supplied, the non-running mode is canceled, and the DC power supply bus DL and the electric vehicle V are disconnected.

  That is, when the electric vehicle V is physically connected to the connection portion JL, the electric vehicle identification information given to the electric vehicle V is obtained, and the electric vehicle is obtained based on the electric vehicle identification information. When it is determined whether or not it is a power supply target electric mobile body, and when it is determined as a power supply target electric mobile body, the connection devices 70 and 70A electrically connect the DC power supply bus DL and the electric mobile body V, and the electric mobile body The DC power is supplied from the connecting portion JL to the electric vehicle V until it reaches the chargeable capacity of V or until the electric vehicle is disconnected from the connecting portion JL.

  FIG. 2 is a diagram illustrating a configuration of the electric vehicle V according to the present embodiment. The electric vehicle V is an electric vehicle that travels by supplying electric power and rotationally driving the driving electric device 5. The electric vehicle V includes a first power receiving connection portion J1 that receives DC power from the outside, a first power converter 1 that receives DC power from the first power receiving connection portion J1 and converts it into AC power, A power storage device 4 for storing electric power and supplying electric power necessary for rotationally driving the driving electric device 5; a second power converter 2 for converting DC power of the power storage device 4 into AC power; The second power converter 2 is disposed at an intermediate position between the first power converter 1 and the drive electric device 5, and the second power converter 2 is connected to the first power converter 1 or the drive. A selection device 3 for selecting and connecting one of the electric devices 5, an electrical insulation device 6 (see FIG. 7) disposed between the selection device 3 and the first power converter 1, And a control device 7 that controls the first power converter 1, the second power converter 2, and the like. Further, the electric vehicle V has a second power receiving connection portion J2 that is directly connected to the power storage device 4.

  The selection device 3 selects the drive electric device 5 when the electric vehicle V is traveling and connects it to the power storage device 4 via the second power converter 2, and the first when the electric vehicle V is not running. The power converter 1 is selected and connected to the power storage device 4 via the second power converter 2.

  Further, the selection device 3 selects the driving electric device 5 when the electric vehicle V is traveling, and converts the DC power output from the power storage device 4 into AC power by the second power converter 2. A DC power supply device (in this embodiment, a DC power supply electric vehicle management system) prepared by selecting the first power converter 1 when the electric vehicle V is not traveling and is supplied to the drive electric device 5. 100), the AC power obtained by converting the DC power received by the first power converter 1 is supplied to the second power converter 2 to be converted to DC power, and is supplied to the power storage device 4 for charging.

  The configuration of FIG. 2 will be described in more detail. The electric vehicle V converts the DC power received from the first power receiving connection portion J1 that receives DC power from the outside and the first power receiving connection portion J1 through the first connection portion J11 into AC power. The first power converter 1, the power storage device 4 that generates driving power for rotationally driving the driving electric device 5 that drives the electric vehicle V, and the power storage device 4 through the first connection portion J21. The second power converter 2 that converts the DC power supplied from the power storage device 4 into AC power, and the second connection J22 of the second power converter 2 are connected to the second power converter 2 via the electrical insulation device 6. And a selection device 3 that selects and connects either the second connection portion J12 of the first power converter 1 or the connection portion J5 of the drive electric device 5.

  When the first power receiving connection portion J1 is physically connected to the DC power supply bus DL via the connection device 70 (first connection device) in the non-running mode, the electric vehicle V is identified. Information is transmitted to the management device 80, and during the period from when the electrical connection is established between the first power receiving connection portion J1 and the DC power supply bus DL to the disconnection, the first power receiving connection portion J1 is used. The DC power received from the DC power supply bus DL is converted into AC power by the first power converter 1 and supplied to the second power converter 2, converted to DC power and supplied to the power storage device 4. To charge.

  In addition, when the electric vehicle V is in the non-running mode, the second power receiving connection portion J2 is physically connected to the rapid charging power converter 65 via the connection device 70A (second connection device). In addition to transmitting the electric vehicle identification information to the management device 80, the first time from when the electrical connection is established between the second power receiving connection portion J2 and the rapid charging power converter 65 until the disconnection, The direct current power received from the rapid charging power converter 65 via the second power receiving connection J2 is supplied to the power storage device 4 and charged.

  When the non-running mode is released, the electric vehicle V supplies the DC power output from the power storage device 4 to the second power converter 2 to convert it into AC power, and the drive electric device 5 Supply and shift to driving mode.

  In addition, the electric vehicle V includes a regenerative brake device (not shown), and when the output of the power storage device 4 is suppressed in the traveling mode, the electric power generated by the driving electric device 5 is the second electric power. The power storage device 4 may be supplied via the converter 2 to charge the power storage device 4.

  FIG. 3 is a diagram illustrating a configuration of the management device 80 according to the present embodiment. The management device 80 includes a processing unit 81, a storage unit 82, an input unit 83, a display unit 84, and a communication unit 85. The processing unit 81 is a central processing unit (CPU), a connection device control unit 811 that controls the connection devices 70 and 70A, and a required power supply of the electric mobile body that calculates a required power supply time for charging the electric mobile body V. A time calculation unit 812, a power connection device control unit 813 for controlling the power connection device 60 to select a power source based on a required capacity per unit time, a charge calculation unit 814 for generating charging information for the electric vehicle V, an electric movement A movement path pattern creation unit 815 that creates movement path pattern information of the body V is included.

  The storage unit 82 includes the electric vehicle management information 821 (see FIG. 4) that is the management information of the electric vehicle V, the connection management information 822 (see FIG. 4) that is the management information of the connection unit JL, and the normal charging mode. Mode-specific unit price information 823 (see FIG. 4), which is unit price information for each mode of the quick charge mode, electric mobile unit charging information 826 (see FIG. 5) indicating the charging state of the electric vehicle V, and DC power source management information. DC power management information 827, movement route pattern information 828 of the electric vehicle V, and the like are stored.

  The input unit 83 is a device for inputting an instruction to a computer such as a keyboard and a mouse, and inputs an instruction for starting a program. The display unit 84 is a display or the like, and displays the execution status and execution result of the processing by the management device 80. The communication unit 85 exchanges various data and commands with other devices via a network or the like.

  FIG. 4 is a diagram illustrating an example of fixed information in the storage unit 82 according to the present embodiment. The fixed information includes electric vehicle management information 821, connection management information 822, and unit price information 823 by mode. The electric vehicle management information 821 includes an electric vehicle management ID (electric vehicle identification information), validity information indicating whether the electric vehicle identification information is valid, and the maximum power storage device 4 of the electric vehicle V. Storage amount, normal charge mode availability information indicating whether or not the normal charge mode is permitted, quick charge mode availability information indicating whether or not the rapid charge mode is permitted, owner information of the electric vehicle V, the owner's information Includes contact information.

  The connection part management information 822 includes a connection part management ID (connection part identification information) of the connection part JL, a connection mode type fed from the connection part JL, installation position information of the connection part JL (latitude and longitude information), Includes address information of installation location, installation date, administrator, contact information, etc.

  The unit price information 823 by mode includes a unit time unit price for each time zone (first time, second time, and third time). For example, the first time is 8:00 to 10:00, 14:00 to 18:00, the second time is 10:00 to 14:00, and the third time is 18:00 to 8:00 It is. For the third hour at night, the unit price is determined in consideration of the power generation performance of the power generation facilities, such as lowering the unit price. In addition, the quick charge mode has a higher charge than the normal charge mode.

  FIG. 5 is a diagram illustrating an example of variation information in the storage unit 82 according to the present embodiment. The variation information includes electric vehicle charging information 826. The electric vehicle charging information 826 includes an electric vehicle management ID (electric vehicle identification information), the date and time when the electric vehicle V was connected, the connected connection management ID, and the current status of the electric vehicle V that is permitted to be connected. Power storage amount, connection mode type of normal charge mode or quick charge mode, required power supply time calculated by electric vehicle required power supply time calculation unit 812 (= (maximum storage amount−current storage amount) / per unit time) Power supply amount), the date and time when the electric vehicle V is disconnected, the power supply time during which power is supplied before the disconnection, and the like.

  When the electric vehicle V is electrically connected to the connection portion JL and the supply of DC power from the DC power supply bus DL to the electric vehicle V is started, the management device 80 indicates a power supply start date indicating the date and time. When the time information is managed in association with the connection part identification information (connection part management ID) and the electric vehicle identification information (electric vehicle management ID), and when the electric connection is disconnected and the association is released The power supply end date and time information indicating the date and time is managed in association with the connection part identification information and the electric vehicle identification information. Thereby, the power feeding situation to each electric vehicle V can be grasped.

  The management device 80 calculates the power supply time by subtracting the power supply start date / time information from the power supply end date / time information, and charges the electric vehicle V by multiplying the unit price information associated with the electric vehicle identification information by the power supply time. Accounting information is calculated for this purpose. Thereby, a charge can be charged to the owner of the electric vehicle V.

  The management device 80 stores and manages the connection unit identification information, the electric vehicle identification information, and the unit price information as fixed information in the storage unit 82 (see FIG. 4), the power supply start date / time information, and the power supply end. The date / time information, the power supply time, and the billing information are stored and managed in the storage unit 82 as variation information (see FIGS. 5 and 6). Thereby, each information which the management apparatus 80 memorize | stores can be managed as fixed information and fluctuation information.

  The connection unit JL is physically connected to the DC power supply bus DL at a predetermined connection unit installation position of the DC power supply bus DL, and the management device 80 associates address information corresponding to the connection unit installation position and stores the storage unit 82. To remember. This facilitates maintenance work including management and maintenance of the connecting portion JL.

  For each electric vehicle identification information, the management device 80 associates the address information of the connection portion JL when electrically connected to the DC power supply bus DL with the power supply start date / time information in time series, and the movement route pattern information 828. And the moving path pattern information 828 may be updated when the electric vehicle V is newly electrically connected to the DC power supply bus DL via the connection portion JL. Thereby, a user's charge position can be grasped | ascertained for every electric vehicle V. FIG.

  FIG. 6 is a flowchart illustrating an example of the accounting process of the management apparatus according to the present embodiment. Reference is made to FIGS. The accounting calculation unit 814 of the processing unit 81 acquires the electric vehicle management ID (Step S61) and acquires the accounting target month (Step S62). The processing unit 81 refers to the electric vehicle charging information 826 for the electric vehicle management ID acquired in step S61 and determines whether or not there is a connection to the connection unit JL (step S63). If there is a connection (step S63, Yes), the power supply time of the connection date and time is acquired (step S64), the connection mode of the connection date and time is acquired (step S65), and the unit time based on the unit price information 823 by mode for the power supply time The billing information is calculated by multiplying the unit price information (step S66). And the process part 81 memorize | stores the charging information of a connection date in the memory | storage part 82 (step S67), and determines whether the process of all the connection dates was completed (step S68). If all the connection dates and times have not been processed (No at step S68), the process returns to step S64, and steps S64 to S68 are repeated for the next connection date and time.

  In step S68, when the processing for all the connection dates and times is completed (step S68, Yes), the processing unit 81 calculates the total value of the billing month (step S69), and uses the total value of the billing month as a billing amount. It memorize | stores in the memory | storage part 82 (step S70), issues a bill (step S71), and complete | finishes a series of processes. In step S63, if there is no connection to the connection unit JL in the billing month (step S63, No), the process ends.

  Thereby, it is possible to charge the owner of the electric vehicle management ID monthly for each electric vehicle management ID based on the power supply time and the connection mode. In FIG. 6, the description has been made on a monthly basis, but it may be possible to calculate the charging information for each day or each week and charge a fee.

  FIG. 7 is a diagram illustrating the configuration of the selection device 3 and the electrical insulation device 6 according to the present embodiment. Reference is made to FIG. 2 as appropriate. The selection device 3 is a three-phase switching device. In the power receiving state, the changeover switches 3u, 3v, 3w are connected to the first power converter 1 via the second power converter 2 and the electrical insulation device 6 (see the solid line). When not in the state, the changeover switches 3u, 3v, 3w are connected to the second power converter 2 and the driving electric device 5 (see broken lines).

  In the CHAdeMO standard (registered trademark), which is a conventional rapid charging standard for automobiles, it is obliged to insulate between a system power supply (commercial power supply) and an electric vehicle. In order to make it similar to this, an electrical insulating device 6 is arranged between the first power converter 1 and the second power converter 2. The electrical insulation device 6 is, for example, an insulation voltage transformer.

  That is, the second connection portion J12 of the first power converter 1 and the second power converter 2 of the second connection portion J12 of the first power converter 1 and the second connection portion J12 of the first power converter 1 An electrical insulating device 6 that electrically insulates the first power converter 1 and the second power converter 2 when the two connecting portions J22 are connected is provided.

  FIG. 8 is a flowchart showing processing in the normal charging mode of the management device 80 according to the present embodiment. 1 to 3 will be referred to as appropriate. The processing unit 81 determines whether or not the connection of the first connection device (connection device 70) has been detected (step S81). When the processing unit 81 detects the connection of the first connection device (step S81, Yes), the normal charging mode is selected (step S82), and the process proceeds to step S83 where the connection of the first connection device is not detected. (Step S81, No), it returns to Step S81.

  In step S83, the processing unit 81 obtains an electric vehicle management ID (electric vehicle identification information) from the connected electric vehicle V, and refers to the electric vehicle management information 821 so as to match the registration information. It is determined whether or not (step S84). When it matches with the registration information (step S84, Yes), the process proceeds to step S85. When it does not match (step S84, No), it is notified that it is not registered in the electric vehicle V, and the process returns to step S81.

  In step S85, the processing unit 81 sets the non-running mode, calculates a necessary amount necessary for charging, and starts charging (step S86). After starting charging, it is determined whether or not a disconnection command signal is received from the electric vehicle V (step S87). If no disconnection command signal is received (step S87, No), the process proceeds to step S88. When the column command signal is received (step S87, Yes), the process proceeds to step S89.

  In step S88, the processing unit 81 determines whether or not the maximum storage amount of the electric vehicle V has been reached. When the maximum storage amount has been reached (Yes in step S88), the processing unit 81 proceeds to step S89 and sets the maximum storage amount. If not reached (No at Step S88), the process returns to Step S87. In step S89, the processing unit 81 ends the charging and cancels the non-running mode. And the process part 81 interrupts | blocks a 1st connection apparatus (connection apparatus 70) (step S8E), and complete | finishes a series of processes.

  FIG. 9 is a flowchart showing a process in the quick charge mode of the management device 80 according to the present embodiment. 1 to 3 will be referred to as appropriate. The processing unit 81 determines whether or not the connection of the second connection device (connection device 70A) has been detected (step S91). When the processing unit 81 detects the connection of the second connection device (step S91, Yes), selects the quick charge mode (step S92), and proceeds to step S93, and does not detect the connection of the second connection device. (Step S91, No), it returns to step S91.

  In step S93, the processing unit 81 obtains an electric vehicle management ID (electric vehicle identification information) from the connected electric vehicle V and matches the registration information with reference to the electric vehicle management information 821. It is determined whether or not (step S94). When it matches with the registration information (step S94, Yes), the process proceeds to step S95, and when it does not match (step S94, No), it is notified that it is not registered in the electric vehicle V, and the process returns to step S91.

  In step S95, the processing unit 81 sets the non-running mode, calculates a necessary amount necessary for charging, and starts charging (step S96). After starting charging, it is determined whether or not a disconnection command signal is received from the electric vehicle V (step S97). If no disconnection command signal is received (step S97, No), the process proceeds to step S98. When the column command signal is received (step S97, Yes), the process proceeds to step S99.

  In step S98, the processing unit 81 determines whether or not the maximum storage amount of the electric vehicle V has been reached. When the maximum storage amount has been reached (Yes in step S98), the processing unit 81 proceeds to step S99 and sets the maximum storage amount. If not reached (No at Step S98), the process returns to Step S97. In step S99, the processing unit 81 ends the charging and cancels the non-running mode. And the process part 81 interrupts | blocks a 2nd connection apparatus (connection apparatus 70A) (step S9E), and complete | finishes a series of processes.

  The management device 80 uses the second connection device (connection device 70A) for electrical connection to the same electric vehicle identification information while the first connection device (connection device 70) establishes an electrical connection. While the connection is not set and the electrical connection is established by the second connection device, the electrical connection by the first connection device is not set. Thereby, the setting of the charge mode which overlaps with normal charge mode and quick charge mode with respect to the electric vehicle V in the same electric vehicle identification information can be avoided.

  As described above, the management device 80 associates the maximum storage amount of the power storage device 4 corresponding to the electric vehicle identification information and stores the maximum storage amount in advance in the storage unit 82. The difference between the current storage amount of the power storage device 4 acquired from the electric vehicle V and the required amount, or the power supply time obtained by dividing the required amount by the charge capacity per unit time can be set.

  The management device 80 calculates a total value of the necessary amount set for the electric vehicle V in which the non-running mode is set, and the DC power supply device physically connected to the DC power supply bus DL according to the total value of the necessary amount. It is preferable to select a necessary one and electrically connect it to the DC power supply bus DL. Thereby, when the total necessary amount increases, the supply from the DC power source can be increased, and when the total necessary amount decreases, the supply from the DC power source can be decreased.

  FIG. 10 is a diagram illustrating a configuration of the voltage compensation device 90 according to the present embodiment. The voltage compensator 90 is a photovoltaic power generation facility that determines the shape, installation method, and the like according to the surrounding terrain situation of the installation location. The voltage compensation device 90 includes a solar panel 91, a power converter 92, and a control device 93. The DC power generated by the solar panel 91 is converted to a predetermined voltage by the power converter 92 and supplied to the DC power supply bus DL. The control device 93 monitors the voltage value of the DC power supply bus DL and controls the output of the power converter 92 so as to maintain a predetermined voltage.

  FIG. 11 is a diagram illustrating an example of the solar panel 91 installed on the sidewalk according to the present embodiment. When the DC power source bus DL is laid in the basement of the town, the solar panel 91 may be laid on a sidewalk or the like on the ground. Thereby, the voltage compensation apparatus 90 can be appropriately disposed at a location where there is a voltage drop.

  FIG. 12 is a diagram illustrating an arrangement configuration example of the connection portion JL according to the present embodiment. The DC power supply bus DL is covered with a coating member that has been subjected to anticorrosion processing, and is embedded in the underground portion at a predetermined depth from the ground. The connection portion JL is a direct current at a predetermined connection portion installation position of the DC power supply bus DL. It is physically connected to the power supply bus DL, and is disposed downwardly at a predetermined height position from the ground on the support 78 disposed on the ground portion at the connection portion installation position, and has a one-touch lock function when in use and not in use. A cover 75 is provided.

  FIG. 13 is a diagram illustrating a circuit configuration example of the connection device 70 according to the present embodiment. In FIG. 13, a direct current 2-wire system will be described as an example. The DC power supply bus DL is composed of a bus DL + and a bus DL−. The connection device 70 includes an energization switch 71, a connection portion JL, an abnormality detection switch 72, and a direct current detector 73. The connection device 70 is connected from the bus DL + to one end of the connection portion JL via the energization switch 71, and is connected to the bus DL− from the other end of the connection JL. Further, a branch is made between the energizing switch 71 and the connecting portion JL, one end is connected to the abnormality detecting switch 72, and the other end of the abnormality detecting switch 72 is connected to the bus DL− via the DC current detector 73. Has been.

  The management device 80 closes the abnormality detection switch 72 to the connection portion JL to which the electric vehicle V is not physically connected, and sets the electric vehicle V as an electrically connected state to the energization switch 71. Is closed, a current as an abnormality detection signal is supplied to the abnormality detection switch 72 and the DC current detector 73, and an abnormality detection mode for detecting an abnormality by the conduction state of the abnormality detection signal of the DC current detector 73 is set. Have.

  The management device 80 may repeat the abnormality detection mode and perform it for all the connection portions JL to which the electric vehicle V is not physically connected. Thereby, it can be checked whether or not there is an abnormality in the connection device 70.

  In FIG. 13, the DC power supply bus DL has been described with a DC 2-wire system, but a DC 3-wire system can be used similarly.

  The electric vehicle V of the present embodiment receives power from a DC power supply bus DL having a relatively low voltage (for example, DC 200 V) via the cable C, and serves as a first DC-AC converter (also referred to as a DC-AC inverter). The power storage device 4 can convert the AC power into AC power, and the second power converter 2 serving as an AC-DC converter can convert the power storage device 4 into DC power having a high voltage (for example, DC 360 to 400 V). Conventionally, it has been necessary to arrange a relatively expensive quick charger in the area. In the present invention, the first power converter 1 (DC-AC converter) and the selector 3 are arranged in the electric vehicle V. Allows charging, although not rapidly. Moreover, if many connection parts JL (refer FIG. 1) which are electric power feeding spots are provided in an area, the electric vehicle V can be charged from any connection part JL. When quick charging is required, charging is possible via the connecting device 70A and the rapid charging power converter 65.

(Modification)
In the embodiment shown in FIG. 1, the case where the DC power supply bus DL is single is shown, but the present invention is not limited to this. The DC power supply bus DL may be branched and arranged in the management area.

  FIG. 14 is a diagram illustrating another configuration of the power feeding spot in the management area A2 according to the present embodiment. FIG. 14 shows a configuration in which a large number of power feeding spots are provided on the branch DC bus in the management area A2. In the management area A2, branch DC buses DL1, DL2, DL3,..., DLN are branched from the DC power supply bus DL. Each branch DC bus DL1, DL2, DL3,..., DLN has a plurality of connecting portions JL. In addition, a voltage compensation device 90 is disposed in the middle of each branch DC bus DL1, DL2, DL3,. The electric vehicle V can be charged at any time from any connecting portion JL (power feeding spot).

  If the management area A2 is a predetermined municipality, if the branch DC buses DL1, DL2, DL3,..., DLN, etc. are arranged with power cables, the pre-registered electric vehicle V does not move to the charging device location. In addition, charging can be performed from a connection portion JL (power feeding spot) close to the above. Further, the electric vehicle V can be charged from the nearby connection portion JL even when the charging capacity is reduced.

  Further, when the management area A2 is a production factory, branch DC buses DL1, DL2, DL3,. In the embodiment shown in FIG. 1, an electric vehicle or the like is illustrated as the electric vehicle V, but is not limited to this. The electric vehicle V may be a battery-type forklift arranged in a factory.

  Moreover, if the 3rd power generation equipment 30 is a wood gasification generator using the thinned wood etc. in the area which will be discarded originally, compared with the generator which uses natural gas and oil which are imported goods, Needless to say, it is excellent in cost performance in consideration of transportation costs.

  According to the DC-fed electric vehicle management system 100 according to the present embodiment, power is preferentially supplied to the management area by an existing renewable energy generator (for example, a wind power generator) that eliminates the need for fuel costs. When the power is insufficient, the power can be additionally supplied to the management area by another generator (for example, a wood gasification generator) that requires fuel. Thereby, stable electric power can be supplied to the electric vehicle V or the like while suppressing costs.

DESCRIPTION OF SYMBOLS 1 1st power converter 2 2nd power converter 3 Selection apparatus 3u, 3v, 3w Changeover switch 4 Power storage apparatus 5 Electric drive apparatus 6 Electrical insulation apparatus 7 Control apparatus 10 1st power generation equipment 11 Wind generator 12, 22, 32, 42, 52, 92 Power converter 20 Second power generation facility 21 Solar power generator 30 Third power generation facility 31 Generator 40 Supply facility 41 Commercial power system 50 Power storage facility 51 Power storage device 60 Power connection device 65 Power converter for quick charging 70 Connection device 71 Switch for energization 72 Switch for abnormality detection 73 DC current detector 75 Cover 80 Management device 81 Processing unit 811 Connection device control unit 812 Necessary power supply time calculation unit for electric vehicle 813 Power connection Device control unit 814 Charge calculation unit 815 Movement route pattern creation unit 82 Storage unit 821 Electric vehicle management information 8 22 Connection unit management information 823 Unit price information by mode 826 Electric vehicle charging information 827 DC power management information 828 Movement path pattern information 83 Input unit 84 Display unit 85 Communication unit 90 Voltage compensation device 91 Solar panel 93 Control device 100 DC power supply motor Mobile management system A1, A2, A3 Management area C Cable DL DC power supply bus DL +, DL- Bus DL1, DL2, DL3, DLN Branch DC bus J1 1st power receiving connection J2 2nd power receiving connection J11, J21 1st 1 connection part J12, J22 2nd connection part J5 connection part JC1, JC2 connection part JL connection part (feeding spot)
V Electric vehicle

Claims (12)

In the controlled area
A power generation facility that uses natural energy and has a power converter that outputs a predetermined DC voltage at its output.
Output, output of an internal combustion power generation facility equipped with a power converter that outputs a predetermined DC voltage in the output unit, output of a storage battery equipped with a power converter that outputs a predetermined DC voltage in the output unit, and commercial A DC power supply bus that supplies DC power of a predetermined voltage configured by a combination of power supply facilities provided with a power converter that outputs a predetermined DC voltage to a required power source from the power system ;
It is composed of an energizing switch and a connecting portion, and when the energizing switch is turned on, the DC power is received from the DC power supply bus and supplied to the connecting portion, and is arranged in the connecting portion and the electric vehicle. A plurality of connection devices that supply direct-current power to the electric vehicle via a power feeding cable that connects a power receiving connection part; and
When the electric mobile body is physically connected to the connection portion by the power supply cable, the electric mobile body identification information given to the electric mobile body is obtained, based on the electric mobile body identification information, when the electric vehicle is determined whether the power supply target electric vehicle, it is determined that the power supply target electric vehicle,
The connecting device electrically connects the DC power supply bus and the electric vehicle, until the electric storage body reaches a chargeable capacity, or until the electric vehicle is disconnected from the connection unit, DC feed electric vehicle management system characterized by supplying the DC power to the electric vehicle from the connection portion. The DC power supply bus comprises a voltage compensation device that compensates for a voltage drop at a predetermined position;
The DC-powered electric vehicle management system according to claim 1, wherein the predetermined voltage is supplied to all the connection portions provided in the DC power supply bus. The DC power supply electric vehicle management system according to claim 2, wherein the voltage compensation device is a photovoltaic power generation facility. The DC power supply bus is covered with a coating member that has been subjected to anticorrosion processing, and is buried in the basement at a predetermined depth from the ground,
The connection portion is physically connected to the DC power supply bus at a predetermined connection portion installation position of the DC power supply bus, and a predetermined height from the ground is provided on a column disposed on the ground portion at the connection portion installation position. The direct-current-feed electric vehicle management system according to claim 1, further comprising a cover that is disposed downward at a position and has a one-touch lock function when not in use. The DC-fed electric vehicle management system includes a management device,
Connection part identification information is given in advance to the connection part,
The management device, when the electric mobile body is electrically connected to the connection portion and starts supplying DC power from the DC power supply bus to the electric mobile body, a power supply start date indicating a date and time The time information is managed in association with the connection part identification information and the electric vehicle identification information, and furthermore, the end of power supply indicating the date and time when the electrical connection is disconnected and the association is released 2. The DC-powered electric vehicle management system according to claim 1, wherein date / time information is managed in association with the connection part identification information and the electric vehicle identification information. The management device calculates a power supply time by subtracting the power supply start date / time information from the power supply end date / time information, and multiplies the power supply time by unit price information associated with the electric vehicle identification information. 6. The DC-fed electric mobile body management system according to claim 5, wherein billing information for charging the mobile body is calculated. The management device stores and manages the connection unit identification information, the electric vehicle identification information, and the unit price information as fixed information in a storage unit, and manages the power supply start date / time information and the power supply end date. The DC-powered electric vehicle management system according to claim 6, wherein time information, the power supply time, and the billing information are stored and managed as variation information in the storage unit. The connection portion is physically connected to the DC power supply bus at a predetermined connection location of the DC power supply bus,
The DC power supply electric vehicle management system according to claim 5, wherein the management device associates address information corresponding to the connection unit installation position and stores the address information in a storage unit. The management device associates the address information of the connection portion when the electrical connection is made to the DC power supply bus for each electric vehicle identification information with the power supply start date and time information in a time series. 9. The movement path pattern information is stored as pattern information, and the movement path pattern information is updated when the electric vehicle is newly electrically connected to the DC power supply bus via the connection unit. DC powered electric vehicle management system. The connection device includes an abnormality detection switch as a simulated state in which the electric vehicle is electrically connected ,
The management device closes the abnormality detection switch of the connection portion to which the electric mobile body is not physically connected, and sets the energization switch as a simulated state in which the electric mobile body is electrically connected. 6. A DC-fed electric vehicle management system according to claim 5, further comprising an abnormality detection mode in which a voltage is applied by closing and an abnormality of the connection device is detected by a state of an output voltage of the DC current detector. system. The said management apparatus repeats the said abnormality detection mode, and performs with respect to all the said connection parts to which the said electrically-driven moving body is not physically connected. The DC electric power feeding electrically-moving body management of Claim 10 characterized by the above-mentioned. system. In a controlled area, an output of a power generation facility using natural energy having a power converter that outputs a predetermined DC voltage in the output unit, and an internal combustion power having a power converter that outputs a predetermined DC voltage in the output unit Output of power generation equipment, output of a storage battery equipped with a power converter that outputs a predetermined DC voltage in the output unit, and power supply equipment equipped with a power converter that outputs a predetermined DC voltage to a commercial power source from the commercial power system A DC power supply bus that supplies DC power of a predetermined voltage configured by a combination of outputs, a switch for energization, and a connection portion, and the DC power is supplied from the DC power supply bus when the switch for energization is turned on. receiving and supplied to the connecting portion, and a plurality of connection devices for supplying DC power to the electric vehicle via a power supply cable connecting the power receiving connecting portion disposed on the connecting portion and the electric vehicle A DC power supply electric vehicle management method of a system comprising a management device,
The management device
When the electric mobile body is physically connected to the connection portion by the power supply cable, the electric mobile body identification information given to the electric mobile body is obtained, based on the electric mobile body identification information, when the electric vehicle is determined whether the power supply target electric vehicle, it is determined that the power supply target electric vehicle,
The DC power supply bus and the electric vehicle are electrically connected by the connecting device, until the electric storage body reaches a chargeable capacity, or until the electric vehicle is disconnected from the connection unit, DC feed electric vehicle management method characterized by supplying the DC power to the electric vehicle from the connection portion.