JP7217431B2 - Power conversion system and cable support - Google Patents

Description

The present disclosure relates generally to power conversion systems and cable supports. More specifically, the present disclosure relates to a power conversion system for charging a storage battery of a mobile object and a cable support used in the power conversion system.

Patent Literature 1 discloses a power conversion system to which an electric vehicle equipped with a storage battery is connected. This power conversion system includes a power conversion device (power converter) and a connector connected to the power conversion device via a cable. A power conversion device has a main circuit that performs power conversion during charging and discharging of a storage battery. The connector forms a power supply path between the power converter and the storage battery by being attached to the inlet of the electric vehicle.

JP 2015-89220 A

An object of the present disclosure is to provide a power conversion system and a cable support capable of reducing the number of communication lines wired between the cable support and the power converter.

A power conversion system according to one aspect of the present disclosure includes a power converter and a cable support. The power converter is provided between a storage battery of a mobile object and an electric power system, and is capable of adjusting DC power charged in the storage battery. The cable support supports cables. The cable is connected between the moving object and the power converter to form a power supply path between the storage battery and the power converter. The power converter has a main circuit that regulates the DC power and a control circuit that controls the operation of the main circuit. The cable support has a processing section. The processing unit obtains control parameters for the main circuit by processing communication with the mobile unit. The control circuit controls the main circuit based on the control parameter acquired from the processing unit by communicating with the processing unit. The cables include a first cable connected between the moving body and the cable support, and a second cable connected between the cable support and the power converter. The types of the first cable and the second cable are different. The cable support includes a first terminal to which the first cable is connected, a second terminal to which the second cable is connected, and an electric circuit connecting the first terminal and the second terminal. , provided. Electrical connection is established so that the electric circuit can connect one or more power lines and one or more communication lines of the first cable to one or more power lines and one or more communication lines of the second cable. Convert.

A cable supporter according to an aspect of the present disclosure is used in the above power conversion system.

The present disclosure has the advantage of reducing the number of communication lines routed between the cable support and the power converter.

FIG. 1 is a schematic diagram showing an overall configuration including a power conversion system according to one embodiment of the present disclosure. FIG. 2 is a schematic diagram showing the configuration of the same power conversion system. FIG. 3 is a schematic diagram showing an installation example of the power conversion system same as above.

(1) Overview The power conversion system 100 of the present embodiment is installed in, for example, a residential facility such as a detached house or collective housing, or a non-residential facility such as an office, store, or nursing care facility. The power conversion system 100 is a system for supplying power (charging) to the storage battery 31 of the moving body 3 at these facilities (see FIG. 1). In this embodiment, as an example, a case where the power conversion system 100 is introduced into a house H1, which is a detached house, will be described.

The moving body 3 includes a power unit such as an electric motor (motor), and a storage battery 31 as a power source that supplies electric power to the power unit. The moving body 3 converts electrical energy (electric power) input from the storage battery 31 into mechanical energy (driving force) in the power section, and moves using this mechanical energy. The moving object 3 has a power control circuit 32 . The power control circuit 32 charges the storage battery 31 with charging power that does not exceed a predetermined maximum value.

The mobile object 3 is a vehicle 30 here. The vehicle 30 is, for example, an electric vehicle that runs using electrical energy stored in a storage battery 31 . An “electric vehicle” as used in the present disclosure is, for example, an electric vehicle that runs on the output of an electric motor, or a plug-in hybrid vehicle that runs on a combination of the output of an engine and the output of an electric motor. The electric vehicle may be a senior car, a two-wheeled vehicle (electric motorcycle), a tricycle, an electric bicycle, or the like.

The power converter system 100 includes a first power converter 11, a second power converter 12, and a cable support 2, as shown in FIG. In the following description, the 1st power converter 11 and the 2nd power converter 12 may be collectively called the "power converter 1." Moreover, in the following description, the 2nd power converter device 12 may be called the "power converter 1."

The first power conversion device 11 converts AC power input from the power system 4 into DC power and outputs the DC power to the DC bus DB1. That is, the first power conversion device 11 has a function of an AC/DC converter that converts input AC power into DC power of a predetermined magnitude and outputs the DC power.

The second power conversion device 12 converts the DC power input from the DC bus DB1 into charging power of the storage battery 31 of the moving body 3 and outputs the charging power. That is, the second power conversion device 12 has a function of a DC/DC converter that converts input DC power into DC power of a predetermined magnitude and outputs the DC power. That is, the power converter 1 is provided between the storage battery 31 of the moving object 3 and the power system 4 and can adjust the DC power charged in the storage battery 31 .

Cable supporter 2 supports cable C1. The cable C<b>1 is connected between the mobile object 3 and the second power conversion device 12 to form a power supply path between the storage battery 31 and the second power conversion device 12 . A connector CN1 is attached to the tip of the cable C1. The connector CN1 is configured to be connectable to the inlet 34 of the mobile body 3 . That is, the DC power (charge power) output from the second power conversion device 12 is supplied to the storage battery 31 via the cable C1 supported by the cable supporter 2 in a state where the connector CN1 is connected to the inlet 34. will be

A “cable” as used in the present disclosure refers to a linear member in which one or more electric wires are protected by a sheath (outer covering). In addition, the "electric wire" referred to in the present disclosure may include an insulated electric wire in which an electric conductor is covered with an insulator, in addition to a bare electric wire that is only an electric conductor.

The support of the cable C1 by the cable supporter 2 referred to in the present disclosure is, for example, by the user U1 hooking the cable C1 so as not to hinder the passage of the user U1 (see FIG. 3) when the connector CN1 is not in use. It does not mean only the mode of temporarily supporting C1. That is, the support of the cable C1 by the cable supporter 2 referred to in the present disclosure also means to permanently support the cable C1 without attachment/detachment by the user U1 in principle.

Here, the power converter 1 has a main circuit 101 that adjusts DC power and a control circuit 102 that controls the operation of the main circuit 101 . The cable supporter 2 also has a processing section 24 .

The processing unit 24 obtains control parameters for the main circuit 101 by processing communication with the mobile unit 3 . The control circuit 102 controls the main circuit 101 based on control parameters acquired from the processing unit 24 by communicating with the processing unit 24 . That is, the control circuit 102 controls the main circuit 101 by cooperating with the processing section 24 . Therefore, in the present embodiment, communication between the processing unit 24 and the power converter 1 does not require one or more communication lines L2 (described later) based on the communication standard with the mobile unit 3. There is an advantage that the number of communication lines L2 wired between the device 2 and the power converter 1 can be reduced.

(2) Details Hereinafter, the power conversion system 100 of the present embodiment will be described in detail with reference to the drawings.

(2.1) Overall Configuration First, the overall configuration including the power conversion system 100 will be described with reference to FIG. In this embodiment, the power conversion system 100 realizes the function as the power conversion system 100 by cooperating with the device control device 5 installed inside the house H1.

The power converter 1 and the device control device 5 of the power conversion system 100 are configured to be able to communicate with each other. In the present disclosure, “communicable” means that information can be exchanged directly or indirectly via a network, a repeater, or the like, by an appropriate communication method such as wired communication or wireless communication. That is, the power converter 1 and the device control device 5 can exchange information with each other. In this embodiment, the power converter 1 and the device control device 5 can communicate bidirectionally with each other, and information is transmitted from the power converter 1 to the device control device 5, and power conversion is performed from the device control device 5. Both sending information to the device 1 are possible.

The device control device 5 is a device that controls at least the power converter 1 . Device control device 5 outputs to power converter 1 a charge start signal for instructing the start of charging and a charge stop signal for instructing the stop of charging, whereby movement by power converter 1 is controlled. It controls the start and stop of charging of the storage battery 31 of the body 3 . Therefore, for example, when the user U1 performs a predetermined operation on the device control device 5, the power converter 1 is instructed to start charging the storage battery 31 or to stop charging the storage battery 31. Is possible.

In this embodiment, the device control device 5 is connected to a network such as the Internet via a router. Therefore, the device control device 5 can communicate with the information terminal possessed by the user U1 via a router or a router and a network. The information terminal is, for example, a smart phone, a tablet terminal, or a personal computer. Therefore, the user U1 can instruct to start charging the storage battery 31 or to stop charging the storage battery 31 not only by directly operating the device control device 5 but also by operating the information terminal. is possible.

The power converter 1 is charging equipment for charging the storage battery 31 of the mobile object 3 . In this embodiment, the power converter 1 is installed inside the house H1. A cable C1 is connected to the power converter 1 . The tip of the cable C1 has a connector CN1 detachably connected to the inlet 34 of the moving body 3. As shown in FIG. Since the power converter 1 is connected to the moving body 3 via the cable C1 while the connector CN1 is connected to the inlet 34, power can be supplied to the storage battery 31 of the moving body 3 via the cable C1. It becomes possible to charge the storage battery 31 .

Further, in this embodiment, the power converter 1 is also a discharging facility having a function of discharging from the storage battery 31 of the moving object 3 via the cable C1 while the connector CN1 is connected to the inlet 34. Therefore, in this embodiment, a V2H (Vehicle To Home) system can be constructed by outputting the discharged power of the storage battery 31 of the moving body 3 to the load (including the distribution board) of the house H1.

The moving body 3 includes a storage battery 31 , a power control circuit 32 and an ECU (Electronic Control Unit) 33 . The power control circuit 32 is a circuit that receives power from the power converter 1 and charges the storage battery 31 . In this embodiment, the power control circuit 32 has a function of discharging the storage battery 31 in addition to a function of charging the storage battery 31 . The EUC 33 controls the power control circuit 32 based on a signal (here, as an example, a signal based on the CHAdeMO (registered trademark) standard) transmitted via a communication line L2 (described later) of the cable C1.

(2.2) Power Conversion System Next, the power conversion system 100 will be described with reference to FIGS. 1 to 3. FIG. The power converter system 100 includes a first power converter 11 and a second power converter 12 as the power converter 1 and a cable supporter 2 .

The 1st power converter 11 is provided with the main circuit 111 (101), the control circuit 112 (102), and the communication part 113 (103), as shown in FIG. In addition, in the first power conversion device 11, the main circuit 111, the control circuit 112, and the communication unit 113 are all accommodated in a rectangular parallelepiped housing 11A (see FIG. 3). In this embodiment, the housing 11A is installed inside the house H1, as shown in FIG.

The main circuit 111 is a bi-directional AC/DC converter, one end of which is connected to the power system 4, and the other end of which is connected to the main circuit of the second power conversion device 12 via a DC cable C2 having a DC bus DB1. 121. The main circuit 111 has, for example, a plurality of switching elements connected to a full bridge, and the plurality of switching elements are PWM (Pulse Width Modulation) controlled by a control circuit 112 to convert DC power to AC power or AC power. It converts electric power into DC power.

In this embodiment, the main circuit 111 has a function of converting AC power input from the power system 4 into DC power of a predetermined magnitude and outputting the DC power to the second power converter 12 . In other words, the first power conversion device 11 has a function of converting AC power input from the power system 4 into DC power and outputting the DC power to the DC cable C2 (DC bus DB1). Further, in the present embodiment, the main circuit 111 has a function of converting the DC power output from the second power conversion device 12 into AC power of a predetermined magnitude and outputting it to the power system 4 . In other words, the first power converter 11 has a function of converting DC power input from the DC cable C2 (DC bus DB1) into AC power and outputting the AC power to the power system 4 .

The control circuit 112 is configured at least in part by a microcontroller having one or more processors and memory. In other words, at least part of the control circuit 112 is implemented in a computer system having one or more processors and memory, and the one or more processors execute a program stored in the memory so that the computer system It functions as part of the control circuit 112 . Although the program is pre-recorded in the memory of the control circuit 112 here, it may be provided through an electric communication line such as the Internet or recorded in a non-temporary recording medium such as a memory card. The control circuit 112 also has a driver for driving the switching elements of the main circuit 111 . The control circuit 112 may be configured by, for example, an FPGA (Field-Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit).

The control circuit 112 receives commands from the device control device 5 or the information terminal via the communication unit 113 to control the main circuit 111 to start charging the storage battery 31 or stop charging the storage battery 31. It has the function to In the present embodiment, the control circuit 112 controls the main circuit 111 to convert the DC power from the second power conversion device 12 into AC power to convert the DC power from the second power converter 12 to the load ( It also has a function to output to the distribution board).

The communication unit 113 has a function of communicating with the device control device 5 . As a communication method between the communication unit 113 and the device control device 5, an appropriate communication method such as wireless communication or wired communication is adopted. In this embodiment, as an example, the communication method between the communication unit 113 and the device control device 5 is wired communication conforming to a communication standard such as a wired LAN (Local Area Network). A communication protocol for communication between the communication unit 113 and the device control device 5 is, for example, Ethernet (registered trademark) or ECHONET Lite (registered trademark).

The communication unit 113 also has a function of communicating with a communication unit 123 (described later) of the second power converter 12 . As a communication method between the communication unit 113 and the communication unit 123 of the second power conversion device 12, an appropriate communication method such as wireless communication or wired communication is adopted. In this embodiment, as an example, the communication unit 113 performs wire communication with the communication unit 123 of the second power converter 12 via the communication line L2 of the DC cable C2.

The second power converter 12, as shown in FIG. 2, includes a main circuit 121 (101), a control circuit 122 (102), and a communication section 123 (103). In addition, in the second power conversion device 12, the main circuit 121, the control circuit 122, and the communication unit 123 are all accommodated in a rectangular parallelepiped housing 12A (see FIG. 3). In this embodiment, the housing 12A is installed inside the house H1, as shown in FIG.

The main circuit 121 is a bidirectional DC/DC converter, one end of which is connected to the first cable C11, and the other end of which is connected to the main circuit 111 of the first power converter 11 via the DC cable C2. ing. The main circuit 121 has, for example, one or more switching elements, and the one or more switching elements are PWM-controlled by the control circuit 122 to adjust and output the input DC power.

In this embodiment, the main circuit 121 converts the DC power output from the first power conversion device 11 into DC power of a predetermined magnitude, and outputs the power to the storage battery 31 via the first cable C11 and the connector CN1. have. Further, in the present embodiment, the main circuit 121 converts the DC power discharged from the storage battery 31 through the first cable C11 and the connector CN1 into DC power of a predetermined magnitude, and outputs the DC power to the first power conversion device 11. It has the function to In other words, the second power conversion device 12 has a function of adjusting the discharge power (DC power) discharged from the storage battery 31 and outputting it to the DC bus DB1.

The control circuit 122 is composed at least in part of a microcontroller having one or more processors and memory. In other words, at least part of the control circuit 122 is implemented in a computer system having one or more processors and memory, and the one or more processors execute a program stored in the memory so that the computer system It functions as part of the control circuit 122 . Although the program is pre-recorded in the memory of the control circuit 122 here, it may be provided through an electric communication line such as the Internet or recorded in a non-temporary recording medium such as a memory card. Also, the control circuit 122 has a driver for driving one or more switching elements of the main circuit 121 . The control circuit 122 may be configured by FPGA, ASIC, or the like, for example.

The control circuit 122 receives a command from the device control device 5 or the information terminal via the communication unit 123 and the communication unit 113 of the first power converter 11 to control the main circuit 121 and start charging the storage battery 31. and stop charging of the storage battery 31 . In this embodiment, the control circuit 122 controls the main circuit 121 to adjust the discharge power (DC power) from the storage battery 31 and output it to the first power conversion device 11, for example, at the time of a power failure in the power system 4. It also has functions.

Thus, in this embodiment, the control circuit 102 of the power converter 1 is divided into the control circuit 112 of the first power converter 11 and the control circuit 122 of the second power converter 12 . In other words, the control circuit 102 has separate functions for the first power conversion device 11 and the second power conversion device 12 .

The communication unit 123 has a function of communicating with the communication unit 113 of the first power converter 11 . As a communication method between the communication unit 123 and the communication unit 113 of the first power conversion device 11, an appropriate communication method such as wireless communication or wired communication is adopted. In this embodiment, as an example, the communication unit 123 performs wired communication with the communication unit 113 of the first power converter 11 via the communication line L2 of the DC cable C2.

The communication unit 123 also has a function of communicating with the mobile unit 3 . As a communication method between the communication unit 123 and the moving object 3, an appropriate communication method such as wireless communication or wired communication is adopted. In this embodiment, as an example, the communication unit 123 performs wire communication with the moving body 3 via the communication line L2 of the cable C1. In the present embodiment, as an example, the communication unit 123 uses signals based on at least the ChadeMO (registered trademark) standard to perform communication for confirming the connection between the power converter 1 and the moving object 3, confirming the state of the moving object 3, and the like. I do.

The cable supporter 2 supports part of the cable C1, as shown in FIG. Further, in the cable supporter 2, part of the cable C1 is supported by being housed in a rectangular parallelepiped housing 2A (see FIG. 3). In this embodiment, the housing 2A is installed in the parking space A1 for the moving body 3 outside the house H1, as shown in FIG. In other words, the cable supporter 2 is installed independently on the ground (here, the parking space A1).

In this embodiment, the cable C1 has a first cable C11 and a second cable C12. A first cable C11 is connected between the mobile body 3 and the cable supporter 2 . The second cable C12 is of a different type from the first cable C11 and is connected between the cable support 2 and the second power converter 12 . That is, in the embodiment, the first cable C11 and the second cable C12 are of different types.

In the present embodiment, except for the case where two cables obtained by cutting one cable C1 are used as the first cable C11 and the second cable C12, respectively, basically the first cable C11 and the second cable It can be said that C12 is of a different type. Specifically, it can be said that the first cable C11 and the second cable C12 are of different types due to their different diameters. In addition, it can be said that the first cable C11 and the second cable C12 are of different types because the numbers of wires included therein are different. In addition, it can be said that the first cable C11 and the second cable C12 are of different types when the structures, materials, or manufacturers of the cables are different from each other.

In this embodiment, the first cable C11 is, for example, a cabtire cable. Moreover, in this embodiment, the 2nd cable C12 is a crosslinked polyethylene insulation vinyl sheath cable (CV cable) as an example. Further, in the present embodiment, both the first cable C11 and the second cable C12 include one or more (here, two) power lines L1 and one or more (here, a plurality of) communication lines L2. have. Furthermore, in this embodiment, the DC cable C2 is a CV cable like the second cable C12, and has one or more power lines L1 and one or more communication lines L2.

The cable supporter 2 (power conversion system 100) further includes a connecting portion 20 that connects the first cable C11 and the second cable C12 to each other. In this embodiment, the connecting portion 20 is housed inside the housing 2A of the cable supporter 2 . That is, the connecting portion 20 is provided inside the cable support 2 .

In this embodiment, the connecting portion 20 has a first terminal 21 to which the first cable C11 is connected and a second terminal 22 to which the second cable C12 is connected. That is, in the present embodiment, the first cable C<b>11 is fixed (supported) to the cable supporter 2 by connecting one end of the first cable C<b>11 to the first terminal 21 . The second cable C12 is fixed (supported) to the cable supporter 2 by connecting one end of the second cable C12 to the second terminal 22 .

The first terminal 21 and the second terminal 22 are connected via an electric circuit 23 . The electric circuit 23 can connect, for example, one or more power lines L1 and one or more communication lines L2 of the first cable C11 to one or more power lines L1 and one or more communication lines L2 of the second cable C12. It is a conversion circuit that converts electrical connections. Of course, the electric circuit 23 interconnects the one or more power lines L1 and the one or more communication lines L2 of the first cable C11 and the one or more power lines L1 and the one or more communication lines L2 of the second cable C12. It may be a mere electrical conductor.

In this embodiment, as shown in FIG. 3, between the cable supporter 2 and the first power converter 11, part of the cable C1 is laid underground. Similarly, between the first power conversion device 11 and the second power conversion device 12, part of the DC cable C2 is laid underground. In the ground, the cable C1 is passed through a pipe C3 such as a metal wire conduit. The hardness of the pipe C3 is higher than the hardness of the sheath (outer covering) of the cable C1.

The cable supporter 2 also has a processing section 24 . The processing unit 24 is at least partially composed of a microcontroller having one or more processors and memories. In other words, the processing unit 24 is realized by a computer system having one or more processors and a memory, and the one or more processors execute a program stored in the memory, thereby causing the computer system to perform the processing of the processing unit 24. function as part of Although the program is pre-recorded in the memory of the processing unit 24 here, it may be provided through an electric communication line such as the Internet or recorded in a non-temporary recording medium such as a memory card.

In this embodiment, the processing unit 24 is configured to operate by receiving DC power supplied from the cable C1 (here, the second cable C12). When the power system 4 is not out of power, power is supplied to the cable C1 from the power converter 1 (here, the second power conversion device 12). In other words, the processing unit 24 is supplied with operating power from the power converter 1 .

The processing unit 24 obtains control parameters for the main circuit 121 by processing communication with the mobile unit 3 . Control parameters include, for example, an upper limit value of charging current, an upper limit value of discharging current, a command to permit/prohibit charging or discharging of storage battery 31, a command to request an abnormal stop from moving body 3, or a command to stop due to overcharging. etc. The processing unit 24 transmits the control parameters to the control circuit 122 of the power converter 1 (here, the second power converter 12) via the communication line L2 of the second cable C12.

When the communication unit 123 receives the control parameters from the processing unit 24, the control circuit 122 controls the main circuit 121 based on the received control parameters. That is, the control circuit 122 controls the main circuit 121 based on control parameters acquired from the processing unit 24 by communicating with the processing unit 24 .

(3) Advantages As described above, in the present embodiment, the control circuit 102 of the power converter 1 and the processing unit 24 of the cable supporter 2 cooperate to control the main circuit 101 of the power converter 1. are doing. Therefore, in this embodiment, compared with the case where the processing unit 24 is not provided, the advantage is that the number of communication lines L2 wired between the cable support 2 and the power converter 1 can be reduced. There is

That is, communication between the mobile unit 3 and the power converter 1 requires one or more communication lines L2 based on the communication standard with the mobile unit 3 (here, the CHAdeMO (registered trademark) standard). Here, in this embodiment, communication using the plurality of communication lines L2 can be completed by communication between the moving body 3 and the processing unit 24. FIG. Therefore, in the present embodiment, communication between the processing unit 24 and the power converter 1 does not require one or more communication lines L2 based on the communication standard with the mobile unit 3. It is possible to reduce the number of communication lines L2 wired between the converters 1 .

In addition, in this embodiment, the communication line L2 between the elements can be shortened compared to the case where the communication line L2 is wired between the mobile body 3 and the control circuit 102 without the processing unit 24 intervening. . Specifically, compared with the case where the processing unit 24 is not provided, the communication line L2 wired between the moving body 3 and the processing unit 24 and the communication line L2 wired between the processing unit 24 and the control circuit 102 and the communication line L2 can be shortened. For this reason, voltage drop in the communication line L2 between the elements can be suppressed, so there is also the advantage that the communication between the moving body 3 and the power converter 1 can be easily stabilized. Furthermore, this embodiment also has the advantage that it is easy to suppress the generation of jamming waves to the surroundings.

(4) Modifications The above-described embodiment is just one of various embodiments of the present disclosure. The above-described embodiments can be modified in various ways according to design and the like as long as the object of the present disclosure can be achieved. Modifications of the above-described embodiment are listed below. Modifications described below can be applied in combination as appropriate.

The power conversion system 100 in the present disclosure includes a computer system in the processing unit 24, for example. A computer system is mainly composed of a processor and a memory as hardware. The function of the processing unit 24 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be recorded in advance in the memory of the computer system, may be provided through an electric communication line, or may be recorded in a non-temporary recording medium such as a computer system-readable memory card, optical disk, or hard disk drive. may be provided. A processor in a computer system consists of one or more electronic circuits, including semiconductor integrated circuits (ICs) or large scale integrated circuits (LSIs). The integrated circuit such as IC or LSI referred to here is called differently depending on the degree of integration, and includes integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). In addition, a field-programmable gate array (FPGA) that is programmed after the LSI is manufactured, or a logic device capable of reconfiguring the bonding relationship inside the LSI or reconfiguring the circuit partitions inside the LSI may also be adopted as the processor. can be done. A plurality of electronic circuits may be integrated into one chip, or may be distributed over a plurality of chips. A plurality of chips may be integrated in one device, or may be distributed in a plurality of devices. A computer system, as used herein, includes a microcontroller having one or more processors and one or more memories. Accordingly, the microcontroller also consists of one or more electronic circuits including semiconductor integrated circuits or large scale integrated circuits.

In addition, it is not an essential configuration of the processing unit 24 that a plurality of functions of the processing unit 24 are integrated into one housing. The constituent elements of the processing unit 24 may be distributed over a plurality of housings. Furthermore, at least part of the functions of the processing unit 24 may be implemented by, for example, a server device and a cloud (cloud computing). Conversely, all the functions of the processing unit 24 may be integrated into one housing as in the third modification described above.

In the above-described embodiments, the operating power of the processing unit 24 may be supplied from the storage battery 31 of the mobile object 3 . Further, the operating power of the processing unit 24 may be supplied from an external power source outside the power conversion system 100 . The external power supply is, for example, a cigar socket attached to the moving body 3 or a battery including a lead-acid battery. In this case, the cable supporter 2 may have a power supply interface to which an external power supply is connected.

In the above-described embodiment, the first cable C11 and the second cable C12 do not have to be of different types. For example, the first cable C<b>11 and the second cable C<b>12 may be cables of the same type, and may be connected at the connecting portion 20 .

In the above-described embodiments, the power conversion system 100 (cable supporter 2) does not have to include the connecting section 20. FIG. In other words, the cable supporter 2 may support one cable C1 that connects the moving body 3 and the second power conversion device 12 in a continuous manner.

In the above-described embodiment, the cable supporter 2 may be provided with an operation unit for instructing the start and stop of charging of the storage battery 31 . In this case, the user U1 can instruct the start and stop of charging of the storage battery 31 by operating the operation unit without directly operating the device control device 5 . Further, the operating portion may be provided on the connector CN1 instead of the cable supporter 2. FIG.

In the above-described embodiment, the first power conversion device 11 and the second power conversion device 12 do not have to be configured separately from each other. That is, the first power converter 11 and the second power converter 12 may be housed in one housing as the power converter 1 .

In the above-described embodiments, the power converter 1 does not have to include the first power conversion device 11 . That is, the first power conversion device 11 does not have to be included in the components of the power conversion system 100 .

In the above-described embodiments, the cable support 2 can be marketed alone. That is, the cable supporter 2 is used in the power conversion system 100. FIG.

(summary)
As described above, the power conversion system (100) according to the first aspect includes the power converter (1) and the cable support (2). A power converter (1) is provided between a storage battery (31) of a mobile object (3) and a power system (4), and can adjust DC power charged in the storage battery (31). A cable support (2) supports a cable (C1). The cable (C1) is connected between the mobile body (3) and the power converter (1) to form a power supply path between the storage battery (31) and the power converter (1). A power converter (1) has a main circuit (101) that regulates DC power and a control circuit (102) that controls the operation of the main circuit (101). The cable support (2) has a processing section (24). A processing unit (24) obtains control parameters for the main circuit (101) by processing communication with the mobile unit (3). A control circuit (102) controls a main circuit (101) based on control parameters obtained from a processing section (24) by communicating with the processing section (24).

According to this aspect, there is an advantage that the number of communication lines (L2) wired between the cable support (2) and the power converter (1) can be reduced.

In the power conversion system (100) according to the second aspect, in the first aspect, the power converter (1) has a first power conversion device (11) and a second power conversion device (12) . A first power conversion device (11) converts AC power input from a power system (4) into DC power and outputs the DC power to a DC bus (DB1). The second power conversion device (12) converts the DC power input from the DC bus (DB1) into charging power for the storage battery (31) and outputs the charging power.

According to this aspect, there is an advantage that the number of communication lines (L2) wired between the cable support (2) and the second power converter (12) can be reduced.

In the power conversion system (100) according to the third aspect, in the second aspect, the control circuit (102) functions in the first power conversion device (11) and the second power conversion device (12), respectively. are separated.

According to this aspect, there is an advantage that the number of communication lines (L2) wired between the cable support (2) and the second power converter (12) can be reduced.

In the power conversion system (100) according to the fourth aspect, in any one of the first to third aspects, the processing section (24) is supplied with operating power from the power converter (1).

According to this aspect, there is an advantage that it is not necessary to separately prepare a power supply for supplying operating power to the processing section (24).

A cable support (2) according to the fifth aspect is used in the power conversion system (100) according to any one of the first to fourth aspects.

According to this aspect, there is an advantage that the number of communication lines (L2) wired between the cable support (2) and the power converter (1) can be reduced.

The configurations according to the second to fourth aspects are not essential configurations for the power conversion system (100), and can be omitted as appropriate.

100 power converter system 1 power converter 11 first power converter 12 second power converter 101 main circuit 102 control circuit 2 cable supporter 24 processing unit 3 moving body 31 storage battery 4 power system C1 cable DB1 DC bus

Claims (5)

a power converter provided between a storage battery of a mobile body and an electric power system and capable of adjusting DC power charged in the storage battery;
a cable support that supports a cable that is connected between the moving body and the power converter and forms a power supply path between the storage battery and the power converter;
The power converter is
a main circuit that adjusts the DC power;
a control circuit that controls the operation of the main circuit;
The cable support has a processing unit that obtains control parameters for the main circuit by processing communication with the mobile body,
The control circuit controls the main circuit based on the control parameters obtained from the processing unit by communicating with the processing unit ,
the cable includes a first cable connected between the moving body and the cable support, and a second cable connected between the cable support and the power converter;
The types of the first cable and the second cable are different,
The cable support includes a first terminal to which the first cable is connected, a second terminal to which the second cable is connected, and an electric circuit connecting the first terminal and the second terminal. , so that the electric circuit can connect one or more power lines and one or more communication lines of the first cable to one or more power lines and one or more communication lines of the second cable. transforming connections,
power conversion system. The power converter is
a first power conversion device that converts AC power input from the power system into DC power and outputs the DC power to a DC bus;
a second power conversion device that converts the DC power input from the DC bus into the charging power of the storage battery and outputs the charging power;
The power conversion system according to claim 1. The control circuit has separate functions for the first power conversion device and the second power conversion device.
The power conversion system according to claim 2. The processing unit is supplied with operating power from the power converter,
The power conversion system according to any one of claims 1 to 3. Used in the power conversion system according to any one of claims 1 to 4,
cable support.

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