JP6615399B1 - Electric mobile charging system - Google Patents

Abstract

An electric mobile charging system capable of using a DC power supply spot in an area is provided. A DC power supply facility 100 includes a power supply connection device 60 that physically connects output portions of one or more DC power supply devices to the same power line to form a DC power supply bus, and an electric mobile body. A first connection device 71 physically connected to the DC power supply bus and a management device 80 are included. The management device 80 selects the normal charging mode when the electric vehicle is physically connected to the DC power supply bus via the first connecting device 71, and acquires the identification information given in advance to the electric vehicle. When the identification information is determined to be registered information that can be electrically connected to the DC power supply bus, the non-running mode is set for the electric vehicle, and the required amount of DC power is supplied from the DC power supply bus to the electric vehicle. The power storage device mounted on the body is charged, and when the necessary amount of DC power is supplied to the electric mobile body, the non-running mode is canceled, and the DC power supply bus and the electric mobile body are disconnected. [Selection] Figure 1

Description

  The present invention relates to an electric vehicle charging system.

  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 have attracted 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 rapid charging apparatus. 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 an object of the present invention is to provide an electric mobile charging system capable of using a DC power supply spot in an area.

In order to achieve the above object, an electric mobile body charging system according to the present invention has an electric power supply facility that supplies direct-current power to an electric mobile body that travels by rotating a driving electric device in a controlled area. A mobile charging system, in which a DC power supply facility comprises a plurality of DC power supply devices that supply DC power of a predetermined voltage and a DC power supply bus by physically connecting the outputs of the DC power supply devices to the same power line A power supply connection device, a plurality of first connection devices that physically connect the electric mobile body to the DC power supply bus without a power converter , and a management device. When the electric mobile body is physically connected to the DC power supply bus via the connecting device, the normal charging mode is selected, the identification information given in advance to the electric mobile body is acquired, and the identification information is electrically connected to the DC power supply bus. Connectable When the registration information is determined, the non-running mode is set for the electric vehicle, the necessary amount of DC power is supplied from the DC power supply bus to the electric vehicle, and the power storage device mounted on the electric vehicle is charged. When a necessary amount of DC power is supplied to the moving body, the non-running mode is canceled, and the DC power supply bus and the electric moving body are disconnected. 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 DC power supply equipment 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 electric vehicle management information of a memory | storage part. It is a figure which shows an example of the electrically-driven mobile body charging information of a memory | storage part. It is a figure which shows the structure of the selection apparatus which concerns on this embodiment. It is a figure which shows the structure of the electrical insulation apparatus which concerns on this embodiment. It is a flowchart which shows an example of the process part of the management apparatus which concerns on this embodiment. It is a flowchart which shows the other example of the process part of the management apparatus which concerns on this embodiment. It is a figure which shows an example of the management information of the required amount of the management area 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. It is a figure which shows the other structure of the electrically-driven moving body which concerns on this embodiment, (a) is a case in eco mode, (b) is a case in power mode in driving mode.

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 illustrating a configuration of the DC power supply facility 100 in the management area A1 according to the present embodiment. The DC power supply facility 100 is 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. Two power generation facilities 20, one or more third power generation facilities 30 that generate heat by operating a heat engine, a supply facility 40 from an AC system of a commercial power system 41, a first power generation facility 10, a second power generation facility 20, A power storage connection device 50 configured to store a surplus power of the third power generation facility 30 and a DC power supply bus DL by physically connecting an output portion of the DC power supply device to the same power line (DC power supply bus DL). 60, a first connection device 71 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 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. Power storage facility 50 is connected to DC power supply bus DL after DC power of power storage device 51 is converted by 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 power supply equipment 100 further includes a second connection device 72 that physically connects the electric vehicle V to the DC power supply bus DL, and a rapid charging power between the DC power supply bus DL and the second connection device 72. A converter 70 is provided.

  The DC power supply bus DL has one or more connection portions JL (feeding spots) for supplying power to the electric vehicle V via the first connection device 71 or the second connection device 72. 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 first connection device 71 or the second connection device 72 is blocked.

  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 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 power supply facility 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 first connection device 71, and the identification information given to the electric vehicle V in advance is selected. The non-running mode is set for the electric vehicle V when the identification information is determined to be registered information that can be electrically connected to the DC power bus DL, and the necessary amount of DC is supplied from the DC power bus DL to the electric vehicle V. The power storage device 4 (see FIG. 2) mounted on the electric vehicle V is charged by supplying electric power, and when the necessary amount of DC power is supplied to the electric vehicle V, the non-running mode is canceled, and the DC power supply The bus line DL and the electric vehicle V are disconnected.

  Further, the management device 80 selects the quick charge mode when the electric vehicle V is physically connected to the quick charge power converter 70 via the second connection device 72, acquires the identification information, When it is determined that the identification information is registered information that can be electrically connected to the rapid charging power converter 70, the non-running mode is set for the electric vehicle V, and the DC power supply bus DL is connected via the rapid charging power converter 70. A necessary amount of high-voltage DC power supplied from the electric vehicle V is supplied to the electric vehicle V, and the electric power storage device 4 (see FIG. 2) mounted on the electric vehicle V is charged. When the DC power is supplied, the non-running mode is canceled, and the DC power source bus DL and the electric vehicle V are disconnected.

  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 any of the electric devices 5 and a control device 7 for controlling the first power converter 1, the second power converter 2, and the like are configured. 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. From the DC power supply device (in this embodiment, the DC power supply equipment 100) prepared by selecting the first power converter 1 when the electric vehicle V is not traveling and is supplied to the driving electric device 5. The AC power obtained by converting the received DC power 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. Thus, the first power converter 1 is connected to 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. The selection device 3 that selects and connects either the second connection portion J12 or the connection portion J5 of the driving electric device 5 is included.

  When the first power receiving connection portion J1 is physically connected to the DC power supply bus DL via the first connection device 71 in the non-running mode, the electric vehicle V transmits identification information to the management device 80. In addition, during the period from when the electrical connection is established between the first power receiving connection portion J1 and the DC power source bus DL to the disconnection, power is received from the DC power source bus DL via the first power receiving connection portion J1. The direct current power is converted into alternating current power by the first power converter 1, supplied to the second power converter 2, converted into direct current power, supplied to the power storage device 4, and charged.

  Further, when the second power receiving connection portion J2 is physically connected to the rapid charging power converter 70 via the second connection device 72 in the non-running mode, the electric vehicle V provides the identification information. The second power receiving connection portion J2 is transmitted from the second power receiving connection portion J2 and the rapid charging power converter 70 until the disconnection is performed after being transmitted to the management device 80. The DC power received from the rapid charging power converter 70 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 first / second connection device control unit 811 that controls the first connection device 71 and the second connection device 72, and charging of the electric vehicle V. An electric mobile body required charging amount calculation unit 812 that calculates a necessary amount, a power connection device control unit 813 that controls the power connection device 60 to select a power source with a necessary capacity, and the like.

  The storage unit 82 includes the electric vehicle management information 821 (see FIG. 4), which is the management information of the electric vehicle V, the electric vehicle charge information 822 (see FIG. 5) indicating the charge state of the electric vehicle V, and the DC power supply. DC power management information 823 and the like which are management information of the above 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 an execution status and an execution result of the process performed 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 the electric vehicle management information 821 in the storage unit 82. The electric vehicle management information 821 includes an electric vehicle management ID (identification information), validity information indicating whether or not the identification information is valid, the maximum storage amount of the power storage device 4 of the electric vehicle V, and the normal charging mode. Information on whether or not to allow the normal charging mode, information on whether or not to allow the quick charging mode, information on owner of the electric vehicle V, contact information of the owner, etc. .

  FIG. 5 is a diagram illustrating an example of the electric vehicle charging information 822 stored in the storage unit 82. The electric vehicle charging information 822 includes the electric vehicle management ID (identification information), the date and time when the electric vehicle V was connected, the connection mode type of the normal charge mode or the quick charge mode, and the electric vehicle V that is permitted to be connected. Current power storage amount, required amount calculated by the electric vehicle required charging amount calculation unit 812 (= maximum storage amount-current storage amount), date and time when the electric vehicle V was disconnected, and charging before disconnection The amount of charge that has been made is included.

  The required charging amount calculation unit 812 of the electric vehicle also calculates the amount of charge that is charged when the electric vehicle V is disconnected. Thereby, the charge amount with respect to the accumulated charge amount can be calculated at the end of the month, for example, by calculating the charge amount of the charge amount with respect to the owner of the electric vehicle management ID.

  In addition, the required amount calculation unit 812 of the electric vehicle calculates a necessary amount necessary for charging the connected electric vehicle V every predetermined time, and for example, the total of each electric vehicle V is required every time. It is calculated as the total amount (total required amount). The total value of the necessary amounts is a value used when determining to select a DC power supply device to be described later.

  FIG. 6 is a diagram illustrating a configuration of the selection device 3 according to the present embodiment. 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 second power converter 2 and the first power converter 1 (see the solid line), and when not in the power receiving state, the changeover switch 3u. , 3v, 3w are connected to the second power converter 2 and the driving electric device 5 (see broken lines).

  FIG. 7 is a diagram showing a configuration of the electrical insulating device 6 according to the present embodiment. Reference is made to FIG. 2 as appropriate. 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, in FIG. 7, the electrical insulating device 6 is disposed 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 illustrating an example of the processing unit 81 of the management apparatus 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 71 is detected (step S81). When the processing unit 81 detects the connection of the first connection device 71 (step S81, Yes), the processing unit 81 selects the normal charging mode (step S82), proceeds to step S83, and detects the connection of the first connection device 71. If not (No at Step S81), the process returns to Step S81.

  In step S83, the processing unit 81 acquires an electric vehicle management ID (identification information) from the connected electric vehicle V and refers to the electric vehicle management information 181 to determine whether or not it matches the registration information. Determination is made (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 the 1st connection apparatus 71 (step S8E), and complete | finishes a series of processes.

  FIG. 9 is a flowchart illustrating another example of the processing unit 81 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 72 is detected (step S91). When the processing unit 81 detects the connection of the second connection device 72 (step S91, Yes), the processing unit 81 selects the quick charge mode (step S92), proceeds to step S93, and detects the connection of the second connection device 72. If not (No at Step S91), the process returns to Step S91.

  In step S93, the processing unit 81 acquires an electric vehicle management ID (identification information) from the connected electric vehicle V, refers to the electric vehicle management information 181, and determines whether or not the registration information matches. Determination is made (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-traveling 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 (step S98, Yes), 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 the 2nd connection apparatus 72 (step S9E), and complete | finishes a series of processes.

  The management device 80 does not set the electrical connection by the second connection device 72 while the electrical connection is established by the first connection device 71 for the same identification information, and the second connection device While the electrical connection is established by 72, the electrical connection by the first connection device 71 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 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 identification information and stores the maximum storage amount in advance in the storage unit 82. The required amount can be set by calculating the difference between the current storage amount of the power storage device 4 acquired from the body V and the current storage amount.

  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 showing an example of the management information 824 for the necessary amount of the management area A1 according to this embodiment. The management device 80 manages the required amount of the electric vehicle management ID for each time. That is, in FIG. 10, the necessary amount (= maximum storage amount−current storage amount) shown in FIG. 5 is managed for each time, and the total value is managed as the total value of the necessary amounts (required amount total value) for each time. ing. More specifically, when the electric vehicle management ID is “V000001”, “V000002”, or “V00005”, charging is required for 8 hours using the normal charge type, and the electric vehicle management ID is “V000003”. In the case of, the quick charge type is used and the charging is completed in one hour. In addition, when the electric vehicle management ID is “V000004”, “V000005”, “V001003”, “V001004”, “V001005”, it is a normal charging type, but for 2 hours, 5 hours, 3 hours, depending on the required amount It is 4 hours and 6 hours. Therefore, the management device 80 selects a necessary one from the DC power supply devices physically connected to the DC power supply bus DL in accordance with the total required amount after a predetermined time, and electrically connects the DC power supply bus DL. It is good to connect. In addition, in FIG. 10, although the total value of the required amount for every hour is calculated, it may be every 30 minutes.

  The management device 80 manages the current storage amount for each identification information, and when the value of the current storage amount reaches the corresponding maximum storage amount, or when the disconnection command signal is received from the electric vehicle V, The non-running mode of the corresponding electric vehicle V can be canceled and disconnected from the DC power supply bus DL.

  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 second connection device 72 and the rapid charging power converter 70.

(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. 11 is a diagram showing another configuration of the power feeding spot in the management area A2 according to the present embodiment. FIG. 11 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 are branched from the DC power supply bus DL. Each branch DC bus DL1, DL2, DL3 has a plurality of connecting portions JL. 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, etc. are arranged with power cables, the pre-registered electric vehicle V does not move to the charging device location, but is connected nearby. Charging is possible from the part JL (power feeding spot). Further, the electric vehicle V can be charged from the nearby connection portion JL even when the charging capacity is reduced.

  Further, assuming that the management area A2 is a production factory, branch DC buses DL1, DL2, DL3, etc. may be arranged in each production factory with power cables. 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 thinning material etc. in the area where it will be originally discarded compared with the generator which uses natural gas and oil which are imported goods as fuel, Needless to say, it is excellent in cost performance in consideration of transportation costs.

  FIG. 12 is a diagram illustrating another configuration of the electric vehicle V according to the present embodiment. In the travel mode, (a) is in the eco mode and (b) is in the power mode. In FIG. 12, the structure which can supply electric power from the 1st power converter 1 and the 2nd power converter 2 to the drive electric device 5 at the time of driving | running | working mode is demonstrated. In FIG. 12, the wiring is schematically shown as a single line.

  In FIG. 12, a C contact switch 8 (first switch) and an A contact switch 9 (second switch) are added as compared with FIG. The C contact switch 8 is disposed between the first power receiving connection portion J1 and the first power converter 1. The A contact switch 9 is disposed between the first power converter 1 and the driving electric device 5 and is normally open (OFF).

  The C contact switch 8 connects a common terminal (COM: common) to the first connection portion J11 of the first power converter 1, and a contact terminal (NO: normally open) on the output portion side of the power storage device 4. ), A b contact terminal (NC: normally closed) is provided on the first power receiving connection portion J1 side.

  In the eco mode of FIG. 12A, the C contact switch 8 remains connected to the b contact terminal, and the A contact switch 9 also remains open (OFF). Only the AC power supplied via the second power converter 2 is supplied to the drive electric device 5.

  In the power mode of FIG. 12 (b), the C contact switch 8 is connected to the a contact terminal, inputs the output from the power storage device 4 to the first power converter 1, and further closes the A contact switch 9. (ON) to supply the AC power of the first power converter 1 to the drive electric device 5. Thereby, in this power mode, the alternating current power of the 1st power converter 1 and the 2nd power converter 2 is supplied to the drive electric device 5 together. Note that the phases of the AC power supplied from the first power converter 1 and the second power converter 2 to the driving electric device 5 are synchronized.

  According to the DC power supply facility 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. In the case of a shortage, power can be additionally supplied to the management area by other generators that require fuel (for example, a wood gasification generator). 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 8 C contact switch (1st switch )
9 A contact switch (second switch)
DESCRIPTION OF SYMBOLS 10 1st power generation equipment 11 Wind power generator 12, 22, 32, 42, 52 Power converter 20 2nd power generation equipment 21 Solar power generator 30 3rd power generation equipment 31 Generator 40 Supply equipment 41 Commercial power system 50 Power storage equipment 51 Power storage device 60 Power supply connection device 71 First connection device 72 Second connection device 80 Management device 81 Processing unit 811 First / second connection device control unit 812 Electric mobile body charge required amount calculation unit 813 Power supply connection device Control unit 82 Storage unit 821 Electric vehicle management information 822 Electric vehicle charging information 823 DC power supply management information 83 Input unit 84 Display unit 85 Communication unit 100 DC power supply equipment A1, A2, A3 Management area C Cable DL DC power supply bus DL1 , DL2, DL3 Branch DC bus J1 First power receiving connection J2 Second power receiving connection J11, J21 First Connection part J12, J22 second connection part J5 connection part JC1, JC 2 connection part JL connection part (feeding spot)
V Electric vehicle

Claims (10)

In a managed area, an electric mobile charging system having a DC power supply facility for supplying DC power to an electric mobile that travels by driving a driving electric device to rotate,
The DC power supply equipment is
A plurality of DC power supply devices that supply DC power of a predetermined voltage;
A power supply connecting device that physically connects the output unit of the DC power supply device to the same power line to form a DC power supply bus; and
A plurality of first connection devices that physically connect the electric vehicle to the DC power supply bus without a power converter ;
A management device, and
The management device
When the electric vehicle is physically connected to the DC power supply bus via the first connection device, the normal charging mode is selected, and the identification information given in advance to the electric vehicle is obtained, When the identification information is determined to be registration information that can be electrically connected to the DC power supply bus, the non-running mode is set for the electric vehicle, and a necessary amount of DC power is supplied from the DC power supply bus to the electric vehicle. To charge the power storage device mounted on the electric vehicle,
A non-running mode is canceled when the required amount of DC power is supplied to the electric mobile body, and the DC power supply bus and the electric mobile body are disconnected from each other. The DC power supply facility further includes: a second connection device that physically connects the electric vehicle to the DC power supply bus; and power conversion for rapid charging between the DC power supply bus and the second connection device. Equipped with
The management device
When the electric vehicle is physically connected to the quick charging power converter via the second connecting device, the quick charging mode is selected, the identification information is acquired, and the identification information is The non-running mode is set in the electric vehicle when it is determined that the registration information is electrically connectable to the charging power converter, and the higher voltage than that supplied from the DC power supply bus via the quick charging power converter is set. A large amount of direct current power is supplied to the electric vehicle to charge the electric power storage device mounted on the electric vehicle,
2. The electric movement according to claim 1, wherein when the required amount of DC power is supplied to the electric mobile body, the non-running mode is canceled and the DC power supply bus and the electric mobile body are disconnected. Body charging system. The management device
The maximum storage amount of the power storage device corresponding to the identification information is linked and stored in the storage unit in advance, and the power storage device acquired from the maximum storage amount and the electric vehicle when in the non-running mode The electric mobile charging system according to claim 1, wherein the required amount is set by calculating a difference between the current storage amount and the current storage amount. The management device
Calculate the total value of the required amount for each predetermined time set in the electric vehicle set with the non-running mode, and physically connect to the DC power supply bus according to the total value of the required amount for the predetermined time 4. The electric mobile charging system according to claim 3, wherein a necessary one of the DC power supply devices selected is electrically connected to the DC power supply bus. 5. The management device
The current storage amount is managed for each identification information, and when the current storage amount value reaches the corresponding maximum storage amount, or when a disconnection command signal is received from the electric vehicle. The electric mobile body charging system according to claim 3, wherein the non-running mode of the electric mobile body is released and disconnected from the DC power supply bus. The electric vehicle is
A first power receiving connection for receiving DC power from the outside;
A first power converter that receives DC power from the first power receiving connection and converts it into AC power;
An electric power storage device for storing electric power and supplying electric power necessary for rotationally driving the driving electric device;
A second power converter for converting DC power of the power storage device into AC power;
The second power converter is disposed at an intermediate position between the first power converter and the driving electric device, and the second power converter includes the first power converter or the drive. A selection device for selecting and connecting any of the electric devices for use, and
When the electric vehicle is in a non-traveling mode,
When the first power receiving connection unit is physically connected to the DC power supply bus via the first connection device, the identification information is transmitted to the management device, and
DC power received from the DC power supply bus line through the first power receiving connection part until electrical disconnection is established between the first power receiving connection part and the DC power supply bus line. Is converted into AC power by the first power converter, supplied to the second power converter, converted to DC power, supplied to the power storage device, and charged. The electric mobile body charging system according to 1. The electric vehicle has a second power receiving connection portion directly connected to the power storage device,
When the electric vehicle is in a non-traveling mode,
When the second power receiving connection unit is physically connected to the quick charge power converter via the second connection device, the identification information is transmitted to the management device, and
The electric power conversion for quick charge through the second electric power receiving connection part until the disconnection is performed after the electric connection is established between the second electric power receiving connection part and the electric power converter for quick charge. The electric mobile body charging system according to claim 2, wherein DC power received from a battery is supplied to the power storage device for charging. When the non-traveling mode is canceled, the electric vehicle is
The DC power output from the power storage device is supplied to the second power converter to be converted into AC power, and is supplied to the driving electric device to shift to a running mode. The electric mobile body charging system described in 1. The management device, for the same identification information,
While the electrical connection is established by the first connection device, the electrical connection by the second connection device is not set,
The electric mobile body charging system according to claim 2, wherein the electric connection by the first connection device is not set while the electric connection is established by the second connection device. The electric vehicle further includes:
One of the first power receiving connection section and the power storage device is disposed at an intermediate position between the first power receiving connecting section and the first power converter, and the first power converter is connected to the first power receiving connecting section or the power storage device. A first switch to select and connect;
A second switch that connects the first power converter that is normally unconnected to the driving electric device;
In the electric mobile body, the first switch is normally connected to the first power receiving connection portion in the first power converter,
When receiving a power mode command to increase power supply to the driving electric device, the first switch is connected to the first power converter and the second power storage device is connected to the second power storage device. The electric mobile body charging system according to claim 6, wherein the switch is configured such that the driving electric device is connected to the first power converter.

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