JP2018174646A - Electrical coupling circuit for power source car, power source car, electrical coupling circuit for coupling vehicle, coupling vehicle, control method, battery mode switching method, and overhead power lines mode switching method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for enabling travelling of an electric motor vehicle using a storage battery by a method that a storage battery electric motor vehicle is achieved while the storage battery is mounted on the electric motor vehicle, thereby, the electric motor vehicle can be self-propelled in both sections of an electrified section and a non-electrified section, where the method is totally different from the conventional way of thinking.SOLUTION: A power source car 10 mounting a storage battery 44 and including an electrical coupling circuit 12 for a power source car is coupled to a coupling vehicle 20 including an electrical coupling circuit 22 for the coupling vehicle, the electrical coupling circuit 12 for the power source car is coupled to the electrical coupling circuit 22 for the coupling vehicle, thereby, stored power of the storage battery 44 is supplied to the coupling vehicle 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power supply vehicle or the like that mounts a storage battery and supplies stored electric power of the storage battery to a knitted vehicle.

  In recent years, development of a storage battery electric vehicle in which a storage battery such as a battery is mounted on an electric vehicle has been promoted (for example, see Patent Document 1). The storage battery electric vehicle can travel while charging the storage battery with overhead power and regenerative power in the electrified section, and can drive by driving the main motor based on the stored power of the storage battery in the non-electric section.

Japanese Patent Laid-Open No. 2006-163365

  When the storage battery electric vehicle is driven in a non-electrified section, all of the driving power of the main motor is supplied by the storage battery storage power. The longer the travel distance, the greater the required stored power amount. In order to cope with this, it is conceivable to enlarge the storage battery or to charge the storage battery on the way. When the storage battery is increased in size, there is a limit to the increase in size because it is necessary to secure a large equipment space in the vehicle. In addition, when charging in the middle of the road, it is necessary to construct a charging facility capable of rapid charging. Therefore, it is not realistic because the cost for railway operation is not met in a line area where the number of trains is small.

  The present invention has been made in view of the above circumstances, and the object of the present invention is to self-run both the electrified section and the non-electrified section by mounting the storage battery on the electric vehicle and realizing the storage battery electric vehicle. It is to provide a technology that enables running of an electric vehicle using a storage battery by a method completely different from the conventional idea of enabling it.

The first invention for solving the above-described problems is
A power supply vehicle equipped with a storage battery and supplying the stored power of the storage battery to the trained vehicle, and a power supply vehicle provided in the power supply vehicle for connecting the trained vehicle and supplying the stored power to the trained vehicle An electrical connection circuit,
A first contactor having one end connected to the storage battery;
One end side is connected to a DC link portion to which DC power is supplied based on the collected power from the train line by the current collector provided in the power supply car or the generated power of the generator provided in the power supply car, A second contactor having an end connected to the other end of the first contactor;
One end side is connected to the other end side of the first contactor and the other end side of the second contactor, the other end side is a third contactor connected to the power vehicle plus side connecting terminal,
A series circuit of a resistor and a fourth contactor, wherein one end side is connected to the other end side of the third contactor and the power supply vehicle positive side connection terminal, and the other end side is connected to a ground line and a power supply vehicle negative side A series circuit connected to the terminals;
It is the electric connection circuit for power vehicles provided with.

The second invention is an electrical connection circuit for a power supply vehicle of the first invention,
The power supply vehicle includes a drive converter that drives a main motor based on the stored power.
The first contactor has one end connected to the output stage of the storage battery filter reactor,
It is an electric connection circuit for power vehicles.

  Moreover, 3rd invention is a power supply vehicle provided with the electrical connection circuit for power supply vehicles of 1st or 2nd invention.

In addition, the fourth invention is
An electrical connection circuit for a trained vehicle provided in the trained vehicle for connecting the power supply vehicle of the third invention and the trained vehicle to supply the stored power to the trained vehicle,
The train set is for driving the main motor based on a power collected from a train line by a main motor and a current collector provided in the train set or a power generated by an engine provided in the train set. A converter, and
A fifth contactor having one end connected to the knitted vehicle plus side connecting terminal and the other end connected to the power input side to the drive converter of the knitted vehicle;
A series circuit of a resistor and a sixth contactor, one end side of which is connected to the driving converter side of the fifth contactor and the knitted vehicle plus side connecting terminal, and the other end side of which is a ground line and a knitted vehicle minus A series circuit connected to the side connection terminal;
It is the electric connection circuit for knitted vehicles provided with.

A fifth invention is an electrical connection circuit for a knitted vehicle according to the fourth invention,
The knitted vehicle includes a plus side lead wire and a minus side lead wire that allow power to be exchanged when connected to the other knitted vehicles,
The fifth contactor has the other end connected to the plus-side lead-through line,
The other end side of the series circuit of the resistor and the sixth contactor is connected to the minus-side lead-through line,
It is an electric connection circuit for knitted vehicles.

  The sixth invention is a knitted vehicle provided with the electric connection circuit for a knitted vehicle of the fourth or fifth invention.

  According to the first to sixth inventions, a power supply vehicle equipped with a storage battery and provided with an electric connection circuit for a power supply vehicle is realized, and the power supply vehicle is connected to a formation vehicle provided with an electric connection circuit for a formation vehicle, By connecting the electric connection circuit for the power supply vehicle and the electric connection circuit for the knitted vehicle, the stored power of the storage battery can be supplied to the knitted vehicle. Therefore, if the electrified section is connected to the power supply car, the knitted vehicle, which is a self-propelled electric car that drives the main motor, can be driven by power supply from the power supply car even in the non-electrified section. Become. In the non-electrified section, it is necessary to connect the power supply vehicle to the trained vehicle. However, in the electrified section, it is possible to travel without connecting the power supply vehicle by releasing the connection of the power supply vehicle. Therefore, it is not necessary to equip the trained vehicle with a large-capacity storage battery for driving the main motor.

  In addition, the rail can be used as a return circuit in the electrified section, but the rail may not be used as a return circuit in the non-electrified section. For this reason, the plus side connecting terminal and the minus side connecting terminal are provided in the electric vehicle connecting circuit for the power supply vehicle and the electric connecting circuit for the knitted vehicle, respectively, and are connected and connected when connecting the power supply vehicle to the knitted vehicle. It is possible to secure an electric flow path (also referred to as an electric circuit) related to the storage battery power supply when traveling in the section.

  Further, according to the second invention, the power supply vehicle provided with the electric connection circuit for the power supply vehicle can travel by driving the main motor based on the stored power of the storage battery. For this reason, the power source vehicle can travel to a predetermined position by itself when it is connected to or released from the trained vehicle.

The seventh invention
A control method for connecting the electrical connection circuit for a power vehicle according to the first or second invention and the electrical connection circuit for a trained vehicle according to the fourth or fifth invention,
Before the connecting step of connecting the power vehicle plus side connecting terminal and the trained vehicle plus side connecting terminal and connecting the power source vehicle minus side connecting terminal and the trained vehicle minus side connecting terminal, the third A pre-connection step (for example, steps A1 and B1 in FIG. 5) for opening the contactor and charging the fourth contactor, and opening the fifth contactor and charging the sixth contactor;
After the connection step, a pre-conduction step for opening the fourth contactor and the sixth contactor (for example, steps A5 and B5 in FIG. 5),
A conduction step (for example, steps A15 and B7 in FIG. 5) for charging the third contactor and the fifth contactor after the pre-conduction step;
Is a control method including

  According to the seventh aspect of the invention, it is possible to ensure the safety of the worker who connects the power supply vehicle electrical connection circuit and the trained vehicle electrical connection circuit. That is, before the connecting step of connecting the connecting terminal between the electric vehicle electrical connection circuit and the knitted vehicle electrical connection circuit, the third contactor is opened, the fourth contactor is inserted, and the fifth contactor is opened. , And by performing the pre-connection step in which the sixth contactor is inserted, a positive connection terminal, a series circuit of a resistor and a fourth contactor, a negative connection terminal, a resistor, and a sixth contactor The closed circuit by this is comprised. As a result, even if current may flow to the connection terminal during the connection process due to the remaining charge or the charge induced for some reason, the charge is consumed by the resistor in the closed circuit. Therefore, the safety of workers can be ensured.

The eighth invention
An electric connection circuit for a power supply vehicle according to the first or second invention, and a power conversion device that converts the collected power from a train line by a pantograph into DC power of a given voltage and supplies the DC power to the DC link unit. The first contactor is in an open state, and
An overhead line mode comprising the electrical connection circuit for a knitted vehicle according to the fourth or fifth aspect of the invention, wherein the driving converter drives the main motor based on the power of the overhead line mode voltage based on the collected power from the train line by the pantograph A formation vehicle in
A battery mode switching method for switching to a battery mode for driving by driving the main motor of the trained vehicle based on the stored power of the power supply vehicle,
A pre-connection step (for example, steps A1 and B1 in FIG. 5) for opening the third contactor and throwing the fourth contactor and opening the fifth contactor and throwing the sixth contactor; ,
A connecting step for connecting the power vehicle plus side connecting terminal and the trained vehicle plus side connecting terminal and connecting the power source car minus side connecting terminal and the trained vehicle minus side connecting terminal after the connecting step. (For example, steps A3 and B3 in FIG. 5);
After the connecting step, a pre-conduction step for opening the fourth contactor and the sixth contactor (for example, steps A5 and B5 in FIG. 5),
A first pressure equalization control step (for example, step A13 in FIG. 5) for controlling the voltage supplied by the power conversion device to the DC link unit to a voltage equivalent to the overhead wire mode voltage;
Conducting step (for example, steps A15 and B7 in FIG. 5) of turning on the second contactor, the third contactor and the fifth contactor after the conducting step and the first pressure equalization control step. When,
A first descent step (for example, step B9 in FIG. 5) for lowering the pantograph of the trained vehicle after the conduction step;
After the first descent step, a second pressure equalization control step (for example, step A17 in FIG. 5) for controlling the voltage supplied to the DC link unit by the power conversion device corresponding to the storage battery voltage;
After the second pressure equalization control step, a stored power supply start step (for example, step A19 in FIG. 5) for turning on the first contactor;
After the stored power supply start step, the collected power supply stop step (for example, steps A21 and A23 in FIG. 5) for opening the second contactor and stopping the conversion operation of the power converter,
A second descending step (for example, step A27 in FIG. 5) for lowering the pantograph of the power supply vehicle after the collected power supply stopping step;
Is a battery mode switching method.

  According to the eighth aspect of the invention, the power supply vehicle can be connected to the knitted vehicle that is in the overhead line mode, and the mode can be switched to the battery mode that travels based on the stored power of the storage battery of the power supply vehicle. At this time, even if the overhead wire voltage and the storage battery voltage are different, it is possible to safely switch to the battery mode without causing a current due to the voltage difference in the electric circuit of the trained vehicle or the power supply vehicle. Furthermore, since the switching from the overhead line mode to the battery mode can be performed while the power supply to the trained vehicle is continued, there is no need to stop the operation of the auxiliaries of the trained vehicle.

The ninth invention
1st or 2nd invention, 4th or 5th invention,
A control method for releasing the connection between the electric connection circuit for a power supply vehicle according to claim 1 or 2 and the electric connection circuit for a knitted vehicle according to claim 4 or 5,
Before the connection release step of releasing the connection between the power vehicle plus side connection terminal and the trained vehicle plus side connection terminal and releasing the connection between the power vehicle minus side connection terminal and the train vehicle minus side connection terminal. In addition, a pre-connection release step (for example, step A43 in FIG. 6) that opens the third contactor and throws the fourth contactor and opens the fifth contactor and throws the sixth contactor. B33, A51, B35),
A post-connection release step (for example, step A55 in FIG. 6) for opening the fourth contactor and the sixth contactor after the connection release step;
Is a control method including

  According to the ninth aspect of the invention, it is possible to ensure the safety of the worker who releases the connection between the electric connection circuit for the power supply vehicle and the electric connection circuit for the knitted vehicle. That is, before the connection release step of releasing the connection terminal connected between the power supply vehicle electrical connection circuit and the knitted vehicle electrical connection circuit, the third contactor is opened, the fourth contactor is inserted, By performing the pre-connection release step of opening the 5 contactor and inserting the 6th contactor, the plus side connection terminal, the series circuit of the resistor and the 4th contactor, the minus side connection terminal, and the resistance A closed circuit is formed by the series circuit of the contactor and the sixth contactor. As a result, even if current may flow to the connection terminal during the connection release process due to remaining charge or charge induced for some reason, the charge is consumed by the resistor in the closed circuit. Therefore, the safety of workers can be ensured.

The tenth invention is
An electric connection circuit for a power supply vehicle according to the first or second invention, and a power conversion device that converts the collected power from a train line by a pantograph into DC power of a given voltage and supplies the DC power to the DC link unit. Power car,
A knitted vehicle comprising the electric connection circuit for a knitted vehicle of the fourth or fifth invention, wherein the driving converter drives the main motor based on the collected power from the train line by the pantograph;
Is connected, and the pantographs of the power supply vehicle and the trained vehicle are in the lowered state, and the connection is released from the battery mode in which the main motor of the trained vehicle is driven based on the stored power of the power train. An overhead line mode switching method for switching to the overhead line mode in which the trained vehicle can be driven by driving the main motor based on the power of the overhead line mode voltage based on the collected power from the pantograph,
A first ascending step (e.g., step A31 in FIG. 6) for raising the pantograph of the power vehicle,
After the first rising step, a first pressure equalizing control step (starting the conversion operation of the power converter, and controlling the voltage supplied to the DC link unit by the power converter to a storage battery voltage equivalent) For example, step A35) in FIG.
After the first pressure equalization control step, the power supply switching step (for example, steps A37 and A39 in FIG. 6) is performed, in which the second contactor is turned on and then the first contactor is opened.
After the power supply switching step, a second pressure equalization control step (for example, step A41 in FIG. 6) that controls the voltage that the power converter supplies to the DC link unit to a voltage equivalent to the overhead line mode voltage; ,
After the second pressure equalization control step, a second raising step (for example, step B31 in FIG. 6) for raising the pantograph of the formation vehicle;
After the second ascending step, a conduction disconnecting step (for example, steps A43 and B33 in FIG. 6) for opening the third contactor and the fifth contactor;
After the conduction disconnecting step, a pre-connection release step (for example, Steps A51 and B35 in FIG. 6) in which the fourth contactor and the sixth contactor are inserted, and
After the connection release step, the connection between the power vehicle plus side connection terminal and the trained vehicle plus side connection terminal is released, and the connection between the power vehicle minus side connection terminal and the trained vehicle minus side connection terminal is performed. A connection release step for releasing (for example, steps A53 and B37 in FIG. 6);
A post-connection release step (for example, steps A55 and B39 in FIG. 6) for opening the fourth contactor and the sixth contactor after the connection release step;
This is an overhead line mode switching method including.

  According to the tenth aspect, the power supply vehicle connected to the trained vehicle can be released to switch from the battery mode to the overhead line mode. At this time, even when the overhead wire voltage and the storage battery voltage are different, the current can be safely switched to the overhead wire mode without causing a current due to the voltage difference in the electric circuit of the trained vehicle or the power supply vehicle. Furthermore, since the switching from the battery mode to the overhead line mode can be performed while the power supply to the trained vehicle is continued, it is not necessary to stop the operation of the auxiliaries of the trained vehicle.

The schematic diagram of connection and release of a power supply car to a formation vehicle. The connection block diagram of the electric circuit of a power-supply vehicle and a formation vehicle. The block diagram of the electric circuit of a power supply vehicle. The block diagram of the electric circuit of a formation vehicle. Explanatory drawing of the procedure of connection control with a power-supply vehicle and a formation vehicle. Explanatory drawing of the procedure of release control with a power-supply vehicle and a formation vehicle. The schematic diagram of replacement of the power supply car in the middle station of a non-electrified area. Explanatory drawing of the procedure of the replacement | exchange control of a power supply vehicle. The other block diagram of an electrical connection circuit. The block diagram of the power supply car corresponding to alternating current electrification. The block diagram of the power supply car corresponding to AC / DC electrification. The block diagram of the organization vehicle which is an alternating current electric vehicle. The block diagram of the organization vehicle which is an AC / DC electric vehicle.

[Overview]
In the present embodiment, as shown in FIG. 1, a power supply vehicle 10 is connected to a knitted vehicle 20 and travels in a non-electrified section by power supplied from the power supply vehicle 10. The organized vehicle 20 will be described as an electric vehicle that includes a main motor and is capable of self-running in an electrified section.

  The power supply vehicle 10 is an electric vehicle equipped with a storage battery, and is used for the purpose of supplying the stored power of the storage battery to the connected knitted vehicle 20. Further, the power supply vehicle 10 includes a pantograph (current collector). The overhead line mode travels based on the overhead line power captured via the pantograph, and the battery mode travels based on the storage power of the storage battery. It is possible to drive by switching. Although the storage battery mounted on the power supply vehicle 10 can be designed as an arbitrary capacity, for example, the capacity can be designed to be sufficient for the connected knitting vehicle 20 to travel a distance of about several hundred kilometers. The storage battery can be charged by, for example, overhead power captured via a pantograph at a charging facility provided in the station premises.

  The formation vehicle 20 includes a pantograph, and travels based on the overhead line mode that travels based on the overhead line power captured via the pantograph and the stored power of the storage battery that is supplied from the connected power supply vehicle 10. It is possible to travel by switching between battery modes. Since both the power supply vehicle 10 and the trained vehicle 20 are capable of self-propelling in the overhead line mode, they can travel in a connected state in the electrified section. However, in the present embodiment, in the electrified section, in principle, it is assumed that the power source vehicle 10 is released and only the trained vehicle 20 is self-propelled. In the drawings and the following description, the trained vehicle 20 in a state where the power supply vehicle 10 is not connected is shown and described as if it were a one-car train, but a plurality of trained vehicles 20 are connected and organized. It may be a train.

  In the present embodiment, since the electrified section is a DC section, both the power supply vehicle 10 and the trained vehicle 20 are DC electric vehicles.

[Connection and release of power supply cars]
FIG. 1 is a schematic diagram of connection and release of the power supply vehicle 10 with respect to the formation vehicle 20. As shown on the left side of FIG. 1, when the train set 20 that has traveled through the electrified section enters the non-electrified section, the power supply vehicle 10 is connected to the train set 20 at the joint station A between the electrified section and the non-electrified section. . The formation vehicle 20 switches from the overhead line mode to the battery mode that travels based on the stored power supplied from the connected power supply vehicle 10, and leaves the knotting station A as a train including the formation vehicle 20 and the power supply vehicle 10. You will travel in a non-electrified section.

  As shown on the right side of FIG. 1, when the trained vehicle 20 that has traveled in the non-electrified section enters the electrified section, it is connected to the trained vehicle 20 at the joint station B between the non-electrified section and the electrified section. The power supply car 10 is released. The formation vehicle 20 switches from the battery mode to the overhead line mode, and departs from the knotting station B as a train including only the formation vehicle 20 and travels through the electrified section.

  In addition, the knotting stations A and B are provided with a charging facility for charging the storage battery of the power supply car 10 by overhead power, and the storage battery of the power supply car 10 connected and released from the trained vehicle 20 is charged to be fully charged. It can be connected to another knitting vehicle 20 in the state.

[Constitution]
FIG. 2 is a connection configuration diagram of electric circuits of the power supply vehicle 10 and the trained vehicle 20. Since the power supply vehicle 10 and the knitting vehicle 20 are both electric vehicles, they include main circuits 40 and 50 including a main motor.

  Further, since the train set 20 and the power source vehicle 10 travel in the non-electrified section, the plus side lead-in wire 30a and the minus side lead-in wire are used as lead-in wires 30 for accommodating power between vehicles. Two with 30b are passed. The lead-through wire 30 is configured to be connectable / disengageable between vehicles, and a connection terminal for electrically connecting the lead-through wire 30 is provided at each end of each vehicle. That is, at both ends (front and rear) of the power supply vehicle 10, the power supply vehicle positive side connection terminal 32a is provided on the positive side lead wire 30a, and the power supply vehicle negative side connection terminal 32b is provided on the negative side lead wire 30b. It has been. Further, at both ends (front and rear) of the knitted vehicle 20, the knitted vehicle plus side connection terminal 34a is provided on the plus side lead wire 30a, and the knitted vehicle minus side connection terminal 34b is provided on the minus side lead wire 30b. It has been. Then, the connecting wire 30 between the power supply vehicle 10 and the trained vehicle 20 is electrically connected by connecting the plus side connecting terminals 32a and 34a and connecting the minus side connecting terminals 32b and 34b. The Further, when a plurality of knitted vehicles 20 are connected, by connecting the knitted vehicle plus side connection terminals 34a of the knitted vehicle 20 and the knitted vehicle minus side connection terminals 34b together, The lead wire 30 is connected.

  As a feature of the present embodiment, an electrical connection circuit for safely connecting and releasing the lead-through wire 30 between the power supply vehicle 10 and the trained vehicle 20 is provided. That is, the power supply vehicle 10 is provided with a power supply vehicle electrical connection circuit 12, and the trained vehicle 20 is provided with a trained vehicle electrical connection circuit 22.

  FIG. 3 is a configuration diagram of a detailed electric circuit of the power supply vehicle 10. As shown in FIG. 3, the power supply vehicle 10 includes a pantograph 41 that is a current collector, a main circuit 40, a power supply vehicle electrical connection circuit 12, and a control unit 16.

  The control unit 16 is a controller that controls the respective devices in an integrated manner by outputting control signals to various devices related to the main circuit 40 and the electric connection circuit 12 for the power supply vehicle, in addition to controlling the lifting operation of the pantograph 41. It may be configured as a control device, or may be configured as a control board and incorporated into an existing device. The control unit 16 performs control on the side of the power supply vehicle 10 related to connection / release of the power supply vehicle 10 and the trained vehicle 20 which is one of the features of the present embodiment, and details thereof will be described later with reference to the drawings. .

  In accordance with a control signal from the control unit 16, the pantograph 41 rises and falls so as to come into contact with an overhead line that is a train line, and collects overhead line power.

  The main circuit 40 includes a switchgear 42, a filter reactor FL1, a DC / DC converter 43 that is a power converter, a storage battery 44, a switchgear 45, a drive converter 46, an auxiliary circuit 47, And an electric motor M1.

  The switchgear 42 has a configuration in which a high-speed circuit breaker PHB1 and contactors PLB1 and PLB2 are connected in series, and a resistor is connected in parallel to the contactor PLB2, and a pantograph 41 according to a control signal from the control unit 16 And the primary side of the DC / DC converter 43 are disconnected and connected.

  The primary side of the DC / DC converter 43 is connected to the pantograph 41 via the switchgear 42, and the collected power from the pantograph 41 input to the primary side is converted into a given voltage according to the control signal from the control unit 16. It is converted into DC power and output to the DC link section on the secondary side. In addition, voltage sensors are provided on the primary side and the secondary side of the DC / DC converter 43, and measurement values of these voltage sensors are output to the control unit 16 as needed. Thereby, the control part 16 can grasp | ascertain the voltage of the primary side of the DC / DC converter 43, and a secondary side at any time.

  A drive converter 46, an auxiliary machine circuit 47, and a storage battery 44 are connected in parallel to the DC link section, which is the secondary side of the DC / DC converter 43, via the power supply vehicle electrical connection circuit 12.

  The drive converter 46 is, for example, a VVVF inverter, converts DC power into three-phase AC power, and supplies it as drive power to the main motor M1. The correspondence relationship between the drive converter 46 and the main motor M1 driven by the drive converter 46 is not limited to one-to-one (so-called 1C1M), but is one-to-many (for example, 1C2M or 1C4M) in the case of an induction motor. May be. Moreover, although the drive converter 46 is illustrated as one unit, a configuration in which a plurality of drive converters 46 are provided in parallel may be employed. The auxiliary machine circuit 47 is an electric circuit including an auxiliary machine and a circuit (for example, a static inverter) that drives electric power to the auxiliary machine.

  The storage battery 44 is a battery module in which a plurality of battery cells such as lithium ion batteries are connected. The storage battery 44 is connected to the electrical connection circuit 12 for the power source vehicle via the opening / closing device 45. Further, a voltage sensor is connected in parallel to the storage battery 44, and a measured value of the voltage sensor is output to the control unit 16 as needed. Thereby, the control part 16 can grasp | ascertain the storage battery voltage (charge voltage or discharge voltage) of the storage battery 44 at any time.

  The switchgear 45 has a configuration in which a high-speed circuit breaker BHB and contactors BLB1 and BLB2 are connected in series, and a resistor is connected in parallel to the contactor BLB2, and according to a control signal from the control unit 16, The storage battery 44 and the electrical connection circuit 12 for the power source vehicle are disconnected and connected.

  The electric vehicle connecting circuit 12 includes a first contactor LB1, a second contactor LB2, a third contactor LB3, a fourth contactor LB4, and a resistor R4. The first contactor LB1 has one end connected to the output stage of the storage battery filter reactor BFL, and the other end connected to the other end of the second contactor LB2 and one end of the third contactor LB3. Yes. One end side of the second contactor LB2 is connected to the DC link portion that is the secondary side of the DC / DC converter 43, and the other end side is connected to the other end side of the first contactor LB1. One end side of the third contactor LB3 is connected to the other end side of the first contactor LB1 and the other end side of the second contactor LB2, and the other end side is connected to the power supply vehicle plus side connecting terminal 32a. Yes. The fourth contactor LB4 and the resistor R4 form a series circuit connected in series, and one end side of the series circuit is connected to the other end side of the third contactor LB3 and the power supply vehicle plus side connection terminal 32a. The other end is electrically connected to the wheel and connected to a ground circuit that constitutes a ground wire and a power supply vehicle minus side connecting terminal 32b.

  The power supply vehicle 10 includes a drive converter 46 that drives the main motor M <b> 1 based on the stored power of the storage battery 44. Therefore, the power vehicle 10 can travel by driving the main motor M1 based on the stored power of the storage battery 44. When the power vehicle 10 is connected to or released from the formation vehicle 20, the power vehicle 10 is It is possible to self-run and travel to a predetermined position.

  FIG. 4 is a configuration diagram of a detailed electric circuit of the formation vehicle 20. As shown in FIG. 4, the trained vehicle 20 includes a pantograph 51 that is a current collector, a main circuit 50, a trained vehicle electrical connection circuit 22, and a control unit 26.

  In accordance with a control signal from the control unit 26, the pantograph 51 rises and falls so as to contact the overhead line that is a train line, and collects overhead line power.

  The control unit 26 is a controller that controls the respective devices in an integrated manner by outputting control signals to various devices related to the main circuit 50 and the electrical connection circuit 22 for the knitted vehicle, in addition to controlling the lifting operation of the pantograph 51. It may be configured as a control device, or may be configured as a control board and incorporated into an existing device. The control on the side of the trained vehicle 20 related to the connection / release of the power supply vehicle 10 and the trained vehicle 20 which is one of the features of the present embodiment will be described in detail later with reference to the drawings.

  The main circuit 50 includes an opening / closing device 52, a filter reactor FL3, a drive converter 53, an auxiliary machine circuit 54, and a main motor M2. The drive converter 53 and the auxiliary circuit 54 are configured to be connected in parallel to the pantograph 51 via the switching device 52 and the filter reactor FL3.

  The switchgear 52 has a configuration in which a high-speed circuit breaker PHB3 and contactors PLB3 and PLB4 are connected in series, and a resistor is connected in parallel to the contactor PLB4. The pantograph 51 is in accordance with a control signal from the control unit 26. Then, the drive converter 53 and the auxiliary circuit 54 are disconnected and connected.

  The drive converter 53 is, for example, a VVVF inverter, converts DC power into three-phase AC power, and supplies it as drive power to the main motor M2. The correspondence relationship between the drive converter 53 and the main motor M2 driven by the drive converter 53 is not limited to one-to-one (so-called 1C1M), but in the case of an induction motor, one-to-many (for example, 1C2M or 1C4M). It may be. In addition, although the drive converter 53 is illustrated as one unit, a configuration in which a plurality of drive converters 53 are provided in parallel may be employed. The auxiliary machine circuit 54 is an electric circuit including an auxiliary machine and a circuit (for example, a static inverter) that drives electric power to the auxiliary machine.

  The electric connection circuit 22 for a knitted vehicle includes a fifth contactor LB5, a sixth contactor LB6, and a resistor R6. One end side of the fifth contactor LB5 is connected to the trained vehicle plus side connecting terminal 34a, and the other end side is connected to a pantograph 51 that is an input stage of the main circuit 50 that is an electric circuit in the trained vehicle 20. The knitting vehicle 20 includes a drive converter 53 that drives the main motor M2 based on the overhead power collected by the pantograph 51, and the other contact side of the fifth contactor LB5 is the drive converter 53. It can be said that it is connected to the power input side. The sixth contactor LB6 and the resistor R6 are connected in series to form a series circuit, and one end side of the series circuit is connected to one end side of the fifth contactor LB5 and the knitted vehicle plus side connection terminal 34a. The other end side is electrically connected to the wheel and is connected to a grounding circuit that constitutes a grounding wire and a knitted vehicle minus side connecting terminal 34b.

  When the power supply vehicle 10 and the formation vehicle 20 are connected, in addition to the connection of the lead wire 30 for supplying power, the control lead wire is also connected, so that information is transmitted between the control units 16 and 26. Can be sent and received. However, the control lead-through line and its connecting terminal are not shown in the drawing because they are complicated.

[Control procedure of electrical connection circuit]
Next, with reference to FIGS. 5 and 6, the control operation of the control units 16 and 26 relating to the connection / release of the power supply vehicle 10 and the trained vehicle 20 will be described.

(A) Connecting the power supply car 10 to the train set 20 FIG. 5 shows that when the train set 20 enters the non-electrified section, the power train 10 is connected to the train set 20 in the overhead line mode at the knotting station to switch to the battery mode. It is a control procedure at the time of switching. In FIG. 5, the control procedure in the power supply vehicle 10 is shown on the left side, and the control procedure in the trained vehicle 20 is shown on the right side.

  As a premise, both the power supply car 10 and the formation vehicle 20 are stopped. It is assumed that power supply vehicle 10 is in a battery mode, is in a state where it can be connected to knitting vehicle 20 and is connected, first contactor LB1 is opened, and pantograph 41 is in a lowered state. The formation vehicle 20 is in the overhead line mode, is in a state where it can be connected to the power supply vehicle 10, the pantograph 51 is raised, and the auxiliary circuit 54 is supplied with power based on the overhead line power from the pantograph 51. Suppose that it has been made. In this state, connection control is performed by the control unit 16 of the power supply vehicle 10 and the control unit 26 of the trained vehicle 20 executing a procedure as shown in FIG.

  First, in the power source vehicle 10, the control unit 16 opens the third contactor LB3 and inserts the fourth contactor LB4 (step A1). Further, in the knitted vehicle 20, the control unit 26 opens the fifth contactor LB5 and inserts the sixth contactor LB6 (step B1). These steps A1 and B1 are pre-connection steps.

  Thereafter, the connection work between the power supply vehicle 10 and the trained vehicle 20 is performed by the worker (steps A3 and B3). For this connection work, the connection of the plus-side lead-through line 30a by connecting the power vehicle plus side connection terminal 32a and the knitting vehicle plus side connection terminal 34a, and the connection between the power vehicle minus side connection terminal 32b and the knitting vehicle minus side are performed. In addition to the connection of the minus-side lead-through wire 30b by connecting the connection terminal 34b, connection work such as connection of a mechanical coupler, connection of an air hose, connection of a control lead-in wire is also included. At this time, even if current may flow to the connection terminals 32a, 32b, 34a, 34b due to the remaining charge or the charge induced for some reason, the positive connection terminals 32a, 34a → resistance A closed circuit of R4 → fourth contactor LB4 → minus side connecting terminals 32b, 34b → sixth contactor LB6 → resistor R6 is formed, and further, charges are consumed by the resistors R4 and R6 in the closed circuit. Therefore, the safety of workers is ensured. These steps A3 and B3 are a connecting step and a connecting step.

  When the connection work is completed, the control lead-through line is connected, so that transmission / reception is possible between the control units 16 and 26, and between the control unit 16 (power supply vehicle 10) and the control unit 26 (knitted vehicle 20). The connection control can be advanced while confirming the progress of the mutual control procedure.

  After the connecting work, first, in the power supply vehicle 10, the control unit 16 opens the fourth contactor LB4 (step A5). Further, in the knitted vehicle 20, the control unit 26 opens the sixth contactor LB6 (step B5). These steps A5 and B5 are steps before conduction.

  Subsequently, in the power supply vehicle 10, the control unit 16 opens the second contactor LB2 (step A7), raises the pantograph 41 (step A9), and then turns on the high-speed shut-off device to turn on the switching device 42. The device PHB1 and contactors PLB1 and PLB2 are sequentially charged (step A11). Thereby, the overhead line voltage (the voltage of the collected power from the train line) is applied to the primary side of the DC / DC converter 43.

  Next, the control unit 16 starts the operation of the DC / DC converter 43, and the secondary side has an overhead wire voltage (an overhead wire mode voltage when traveling in the overhead wire mode. The overhead wire voltage is not constant, but depends on the location of other nearby trains. For this reason, for example, the voltage equalization control is performed so that the voltage on the primary side of the DC / DC converter 43 measured by the voltage sensor is substantially equal to the overhead line mode voltage corresponding to the actual overhead line voltage). (Step A13). This step A13 is a first pressure equalization control step. Thereafter, the second contactor LB2 and the third contactor LB3 are introduced (step A15). Moreover, in the knitted vehicle 20, the control part 26 throws in the 5th contactor LB5 (step B7). As a result, electricity is conducted to the plus-side lead-through wire 30a by the power source vehicle 10, and an overhead wire voltage is applied. These steps A15 and B7 are conduction steps. In the formation vehicle 20, the overhead line power via the pantograph 51 and the power supplied from the power supply vehicle 10 via the lead-through line 30 are fed in parallel, and the voltages are both overhead voltage. equal.

  Subsequently, in the trained vehicle 20, the control unit 26 lowers the pantograph 51 (step B9). Thereby, the electric power feeding to the formation vehicle 20 is only the power supplied from the power supply vehicle 10 via the lead-through line 30.

  Next, in the power supply vehicle 10, the control unit 16 changes the operation of the DC / DC converter 43, and the secondary side is approximately equal to the storage battery voltage (the storage battery voltage of the storage battery 44 may vary depending on the load and the like. Therefore, the pressure equalization control is performed so that the voltage measured by the voltage sensor is used as the voltage corresponding to the storage battery voltage (step A17). Thereby, the applied voltage of the lead-through line 30 gradually changes to the storage battery voltage. Therefore, the voltage of the power supplied from the power supply vehicle 10 to the trained vehicle 20 changes to the storage battery voltage. This step A17 is a second pressure equalization control step.

  Then, the control part 16 throws in 1st contactor LB1 (step A19). Thereby, supply of the stored electric power from the storage battery 44 to the trained vehicle 20 from the power supply vehicle 10 is started. This step A19 is a stored power supply start step. The supply of the stored power is started, but the collected power from the pantograph 41 is still supplied in parallel via the DC / DC converter 43.

  Then, after stopping the operation of the DC / DC converter 43 (step A21), the second contactor LB2 is opened (step A23). As a result, the power supplied from the power supply vehicle 10 to the trained vehicle 20 via the lead-through line 30 is only the stored power of the storage battery 44. These steps A21 and A23 are the collected power supply stop step. Finally, the contactors PLB2 and PLB1 are sequentially opened (step A25), and then the pantograph 41 is lowered (step A27). The connection control is as described above.

  By the connection control, the trained vehicle 20 can shift to a battery mode that travels by the stored power of the storage battery 44 supplied from the connected power supply vehicle 10, and the power supply vehicle 10 travels as an accompanying vehicle of the trained vehicle 20. It will be. That is, the formation vehicle 20 travels in a non-electrified section as a train connected to the power supply vehicle 10. Further, since the power supply vehicle 10 can be connected to the train set 20 while the power supply to the train set 20 is continued, it is not necessary to stop the operation of the auxiliary machine (auxiliary machine circuit 54).

(B) Release the power supply car 10 from the trained vehicle 20 FIG. 6 shows that when the trained vehicle 20 enters the electrified section, the power train 10 is released from the trained vehicle 20 in the battery mode and switched to the overhead line mode at the knotting station. Control procedure. In FIG. 6, the control procedure in the power supply vehicle 10 is shown on the left side, and the control procedure in the trained vehicle 20 is shown on the right side.

  As a premise, the power supply vehicle 10 is connected to the trained vehicle 20, and the stored power of the storage battery 44 is supplied from the power supply vehicle 10 to the trained vehicle 20 via the lead-through line 30. Further, it is assumed that both the power supply car 10 and the formation vehicle 20 are stopped. In the power supply vehicle 10, it is assumed that the first contactor LB1 and the third contactor LB3 are turned on, the second contactor LB2 is opened, and the pantograph 41 is lowered. In addition, the formation vehicle 20 is in the battery mode, the fifth contactor LB5 is turned on, the pantograph 51 is lowered, and the auxiliary circuit 54 is supplied with electric power based on the electric power supplied from the power supply vehicle 10. Suppose you are in a state. In this state, each of the control unit 16 of the power supply vehicle 10 and the control unit 26 of the trained vehicle 20 executes a procedure as shown in FIG. Further, until the release operation is performed in steps A53 and B37, the power supply vehicle 10 and the knitting vehicle 20 are connected, that is, the control lead-through line is connected. Transmission / reception is possible between the control unit 16 (power supply vehicle 10) and the control unit 26 (knitted vehicle 20), and the connection release control can be advanced while confirming the progress of the mutual control procedure. .

  First, in the power supply vehicle 10, the control part 16 raises the pantograph 41 (step A31). This step A31 is the first ascending step. Next, in order to turn on the switching device 42, the contactors LB1 and LB2 are sequentially turned on (step A33). Thereby, an overhead wire voltage is applied to the primary side of the DC / DC converter 43. Next, the operation of the DC / DC converter 43 is started, and pressure equalization control is performed so that the secondary side becomes the storage battery voltage (step A35). This step A35 is a first pressure equalization control step.

  Subsequently, the second contactor LB2 is charged (step A37). As a result, power supply from the power supply vehicle 10 to the formation vehicle 20 via the lead-through line 30 is parallel power supply of the overhead line power from the pantograph 41 and the stored power of the storage battery 44, and the voltages are both equal to the storage battery voltage. . Next, the first contactor LB1 is opened (step A39). As a result, the power supply from the power supply vehicle 10 to the trained vehicle 20 via the lead-through line 30 is only the overhead power from the pantograph 41. Steps A37 and A39 are power supply switching steps. That is, power supply from the power supply vehicle 10 via the lead-through line 30 to the trained vehicle 20 is switched from the stored power of the storage battery 44 to the overhead power via the pantograph 41.

  Subsequently, the control unit 16 changes the operation of the DC / DC converter 43 and performs pressure equalization control so that the secondary side becomes the overhead wire voltage (step A41). Thereby, the voltage of the electric power supplied from the power supply vehicle 10 to the formation vehicle 20 via the lead-through line 30 gradually changes from the storage battery voltage to the overhead line voltage. This step A41 is a second pressure equalization control step.

  Thereafter, in the formation vehicle 20, the control unit 26 raises the pantograph 51 (step B31). As a result, the power feeding in the trained vehicle 20 is a parallel power feeding of the power supplied from the power supply vehicle 10 via the lead-through line 30 and the overhead power from the pantograph 51. This step B31 is the second ascending step.

  Next, in the power supply vehicle 10, the control unit 16 opens the third contactor LB3 (step A43). Further, in the knitted vehicle 20, the control unit 26 opens the fifth contactor LB5 (step B33). As a result, power supply from the power supply vehicle 10 via the lead-through line 30 to the trained vehicle 20 is cut off, and the trained vehicle 20 is fed by only the overhead line power via the pantograph 51. Steps A43 and B33 are conduction disconnection steps.

  Subsequently, in the power supply vehicle 10, the control unit 16 stops the operation of the DC / DC converter 43 (step A45). Subsequently, the second contactor LB2, the contactors LB1 and LB2 are sequentially opened (step A47), and then the pantograph 41 is lowered (step A49).

  Subsequently, the control unit 16 inputs the fourth contactor LB4 (step A51). Further, in the knitted vehicle 20, the control unit 26 inputs the sixth contactor LB6 (step B35). These steps A51 and B35 are steps before connection release.

  Thereafter, a release operation for releasing the power supply vehicle 10 from the trained vehicle 20 is performed by the worker (steps A53 and B37). In this releasing operation, the positive lead-through line 30a is released by releasing the power supply vehicle plus side connection terminal 32a and the knitting vehicle plus side connection terminal 34a, and the power supply vehicle minus side connection terminal 34a and the knitting vehicle minus side. In addition to releasing the minus-side lead-through wire 30b by releasing the connection terminal 34b, release operations such as releasing the mechanical coupler, releasing the air hose, and releasing the control feed-through wire are also included. At this time, even if a current may flow to the connection terminals 32a, 32b, 34a, 34b due to the remaining charge or the charge induced for some reason, the positive connection terminals 32a, 34a → resistor A closed circuit of R4 → fourth contactor LB4 → minus side connection terminals 32b and 34b → sixth contactor LB6 → resistor R6 is formed, and further, the charges are charged by the resistors R4 and R6 in the closed circuit. Because it is consumed, the safety of workers is ensured. These steps A53 and B37 are a connection release step and a connection release step. In addition, since the control lead-through line is also released by this release operation, information transmission / reception between the control units 16 and 26 becomes impossible thereafter.

  After the release operation is completed, in the power supply vehicle 10, the control unit 16 opens the fourth contactor LB4 (step A55). In the knitted vehicle 20, the control unit 26 opens the sixth contactor LB6 (step B39). These steps A55 and B39 are steps after connection release. The connection release control is as described above.

  By the connection release control, the knitted vehicle 20 can shift from the battery mode to the overhead line mode, and thereafter travels while traveling on its own in the electrified section. The power supply vehicle 10 can travel to the charging facility of the station, for example, in the battery mode.

[Function and effect]
As described above, according to the present embodiment, the power supply vehicle 10 including the storage battery 44 and including the power supply vehicle electrical connection circuit 12 is realized, and the power supply vehicle 10 is formed using the train connection vehicle electrical connection circuit 22. By connecting to the vehicle 20 and connecting the power supply vehicle electrical connection circuit 12 and the trained vehicle electrical connection circuit 2, the stored power of the storage battery 44 can be supplied to the trained vehicle 20. Accordingly, if the trained vehicle 20 that is an electric vehicle capable of driving by driving the main motor M2 in the electrified section is connected to the power supply car 10, the power supply vehicle 10 receives power supply even in the non-electrified section. Can be run. In the non-electrified section, it is necessary to connect the power supply car 10 to the knitted vehicle 20, but in the electrified section, the connection of the power supply car 10 is released and the vehicle can travel without being connected. Therefore, it is not necessary to equip the trained vehicle 20 with a large-capacity storage battery for driving the main motor M2.

  The power supply vehicle 10 can also travel by driving the main motor M <b> 1 based on the stored power of the storage battery 44. Therefore, when connecting to or releasing from the trained vehicle 20, the power supply vehicle 10 can self-run and travel to a predetermined position.

  In addition, the rail can be used as a return circuit in the electrified section, but the rail may not be used as a return circuit in the non-electrified section. For this reason, the plus side connecting terminals 32a and 34a and the minus side connecting terminals 32b and 34b are provided in the power supply vehicle electrical connection circuit 12 and the trained vehicle electrical connection circuit 22 respectively, and the power vehicle 10 is connected to the trained vehicle 20. It is possible to secure an electric flow path (also referred to as an electric circuit) related to the storage battery power supply when traveling in a non-electrified section.

  Further, when connecting the power supply vehicle 10 and the trained vehicle 20, the power supply vehicle electrical connection circuit 12 provided in the power supply vehicle 10 and the trained vehicle electrical connection circuit 22 provided in the trained vehicle 20 are determined. By controlling according to the procedure, the connection / release between the power supply vehicle 10 and the formation vehicle 20 can be performed while ensuring the safety of workers.

[Modification]
It should be noted that embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can of course be changed as appropriate without departing from the spirit of the present invention.

(A) Replacing the power supply car 10 in the non-electrified section The power supply car 10 connected to the trained vehicle 20 may be replaced in the middle station of the non-electrified section. When the non-electrified section is a long distance section, the power stored in one power supply vehicle 10 is insufficient to travel through the entire section. In such a case, a charging facility is installed at a station in the middle of the non-electrified section, and the power supply car 10 connected to the trained vehicle 20 that has arrived at the station is replaced with another power supply car 10 with the storage battery 44 fully charged. Try to replace it.

  FIG. 7 is a schematic diagram of replacement of the power supply car 10 at a station in the middle of the non-electrified section. As shown in FIG. 7 (a), when the trained vehicle 20 to which the power supply vehicle 10A is connected arrives and stops at the replacement station, the power supply vehicle 10A is connected and released from the trained vehicle 20. The power car 10A that has been released from the connection is withdrawn ((1) in FIG. 7A), and another power car 10B in which the storage battery 44 is fully charged in the charging facility is brought close to and stopped at the train 20 and connected ( (2) in FIG. Thereafter, the organized vehicle 20 leaves the station. As shown in FIG. 7 (b), the power supply vehicle 10A that has been released from the connection travels to the charging facility, and after charging the storage battery 44, the power supply vehicle 10A is placed on standby to be connected to another formation vehicle 20 (FIG. 7 (b). (3)).

  FIG. 8 shows a control procedure when the power supply vehicle 10 is replaced. In FIG. 8, the control procedure for the power supply vehicle 10 is shown on the left side, and the control procedure for the trained vehicle 20 is shown on the right side. As a premise, at the replacement station of the non-electrified section, the train is stopped in a state where the power vehicle 10A is connected to the formation vehicle 20, and the stored power of the storage battery 44 is transferred from the power vehicle 10A to the formation vehicle 20 via the lead-through line 30. Supply is in progress. In the power supply vehicle 10A, the first contactor LB1 and the third contactor LB3 are turned on, the second contactor LB2 is opened, and the pantograph 41 is in a lowered state. The knitted vehicle 20 is in the battery mode, the fifth contactor LB5 is turned on, the pantograph 51 is lowered, and the auxiliary circuit 54 is supplied with power based on the power supplied from the power supply vehicle 10A. Suppose that In this state, each of the control unit 16 of the power supply vehicle 10A and the control unit 26 of the trained vehicle 20 executes the procedure shown in FIG. Further, in this state, while the control lead wire is connected between the power supply vehicle 10A and the formation vehicle 20, transmission / reception is possible between the control units 16 and 26, and control is performed with the control unit 16 (power supply vehicle 10A). The release control can be advanced while confirming the progress of the mutual control procedure with the unit 26 (the formation vehicle 20).

First, in the formation vehicle 20, the control unit 26 sequentially opens the contactors PLB4 and PLB3 in order to open the switching device 52 (step B61). When the knitting vehicle 20 is an AC electric vehicle, the control unit 16 opens the opening / closing device 45 in the power supply vehicle 10A instead of opening the opening / closing device 52 in the knitting vehicle 20 (step B61). BLB2 and BLB1 are sequentially opened (step A60). When the train 20 is a DC electric vehicle or an AC vehicle, either the opening / closing device 45 of the power vehicle 10A is opened (step A60) or the opening / closing device 52 of the train 20 is opened (step B61). Do one or the other.
By opening the opening / closing device 45 or the opening / closing device 52, the power supply to the auxiliary circuit 54 can be cut off while the supply current to the auxiliary circuit 54 of the trained vehicle 20 is reduced.

  Subsequently, in the power supply vehicle 10A, the control unit 16 opens the third contactor LB3 and inserts the fourth contactor LB4 (step A61). In the knitted vehicle 20, the control unit 26 opens the fifth contactor LB5 and inputs the sixth contactor LB6 (step B63). Thereafter, a worker performs a releasing operation for releasing the power supply vehicle 10A from the trained vehicle 20 (steps A63 and B65). By this release operation, the control lead-through line between the power supply vehicle 10A and the trained vehicle 20 is also released. After the release operation is completed, in the power supply vehicle 10A, the control unit 16 opens the fourth contactor LB4 (step A65). In the knitted vehicle 20, the control unit 26 opens the sixth contactor LB6 (step B67).

  The power supply vehicle 10A released from the trained vehicle 20 travels in the battery mode and leaves the trained vehicle 20 to escape (step A67). When step A60 (opening of the opening / closing device 45 in the power supply vehicle 10A) is executed instead of step B61 (opening of the opening / closing device 52 in the trained vehicle 20), the vehicle travels in the battery mode immediately before this step A67. Therefore, the contactors BLB1 and BLB2 are sequentially turned on in order to turn on the switching device 45 in the power supply vehicle 10A (step A66).

  Next, another power supply vehicle 10B approaches the trained vehicle 20 and stops (step A69). This power supply vehicle 10B has traveled in the battery mode, the first contactor LB1 and the third contactor LB3 are turned on, the second contactor LB2 is opened, and the pantograph 41 is in a lowered state.

  First, when step A60 (opening of the opening / closing device 45 in the power supply vehicle 10A) is executed instead of step B61 (opening of the opening / closing device 52 in the trained vehicle 20), the same operation as in step A60, that is, in the power supply vehicle 10B. The controller 16 sequentially opens the contactors BLB2 and BLB1 in order to open the switching device 45 (step A70). Then, in the power supply vehicle 10B, the control unit 16 opens the third contactor LB3 and inputs the fourth contactor LB4 (step A71). In the knitted vehicle 20, the control unit 26 opens the fifth contactor LB5 and inputs the sixth contactor LB6 (step B69). Thereafter, the connection work between the power supply vehicle 10 and the trained vehicle 20B is performed by the worker (steps A73, B71). By this connection work, the control lead-through line between the power supply vehicle 10B and the trained vehicle 20 is also connected.

  When the connection work is completed, in the power supply vehicle 10B, the control unit 16 opens the fourth contactor LB4 (step A75). In the knitted vehicle 20, the control unit 26 opens the sixth contactor LB6 (step B73). Next, in the power supply vehicle 10B, the control unit 16 turns on the third contactor LB3 (step A77). Further, in the knitted vehicle 20, the control unit 26 turns on the fifth contactor LB5 (step B75), and then turns on the contactors PLB3 and PLB4 in order to turn on the switchgear 52 (step B77). By turning on the opening / closing device 52, an inrush current to the auxiliary circuit 54 of the trained vehicle 20 can be prevented. Thereby, supply of the stored electric power of the storage battery 44 from the power supply vehicle 10B to the formation vehicle 20 is started.

  When step A60 (opening of the opening / closing device 45 in the power supply vehicle 10A) is executed instead of step B61 (opening of the opening / closing device 52 in the trained vehicle 20), step A77 (contacting LB3 in the power supply vehicle 10B is turned on) ), The controller 16 sequentially turns on the contactors BLB1 and BLB2 to turn on the switching device 45 in order to run in the battery mode in the power supply vehicle 10B (step A78). ). When the formation vehicle 20 is an AC electric vehicle and does not have the switchgear 52, the series of steps A60, A66, A70, and A78 are performed, so that the AC electric power is supplied when the power supply vehicle 10B is connected. Inrush current to the DC link part of the car can be prevented. The replacement control is as described above.

(B) Electrical connection circuit In the above-described embodiment, as shown in FIGS. 1 and 2, the example in which the power supply vehicle 10 is connected to the rear end portion of the trained vehicle 20 has been described. It can also comprise so that the power supply vehicle 10 may be connected to a part. In this case, as shown in FIG. 9, the power supply vehicle electrical connection circuit 12 in the power supply vehicle 10 and the trained vehicle electrical connection circuit 22 in the trained vehicle 20 may be configured.

  The power supply vehicle 10 is provided with a total of two trained vehicle plus side connecting terminals 34a and a trained vehicle minus side connecting terminal 34b as connecting terminals of the lead-through wires 30 at the front end portion and the rear end portion of the vehicle, respectively. ing.

  The electric vehicle connecting circuit 12 includes a third contactor LB3 and a fourth contact between the main circuit 40 and the connecting terminals 32a and 32b at the rear end portion of the power supply vehicle 10 connected to the formation vehicle 20. What is necessary is just to comprise so that the resistor LB4 and the resistor R4 may be provided. That is, one end side of the third contactor LB3 is connected to the other end side of the first contactor LB1 and the other end side of the second contactor LB2, and the other end side is a power vehicle plus side on the rear end side. It is connected to the connecting terminal 32a. The fourth contactor LB4 and the resistor R4 form a series circuit connected in series, and one end side of the series circuit is a power supply vehicle plus on the other end side and the rear end side of the third contactor LB3. The other end side is connected to the side connection terminal 32a, and is connected to the ground circuit that is electrically connected to the wheel to form the ground line, and the rear end side power supply vehicle minus side connection terminal 34a. The knitted vehicle electrical connection circuit 22 is provided between the knitted vehicle plus side connection terminal 34 a and the knitted vehicle minus side connection terminal 34 b on the front end side connected to the power supply vehicle 10, and the main circuit 50. It is done.

  And in the connection control (refer FIG. 5) which connects the power supply vehicle 10 to the formation vehicle 20, and the connection release control (refer FIG. 6) which connects / releases the power supply vehicle 10 from the formation vehicle 20, it connects with the formation vehicle 20. FIG. Control is performed so that the third contactor LB3 and the fourth contactor LB4 on the rear end side of the power supply vehicle 10 are turned on and off.

(C) Form of electric vehicle In the above-described embodiment, the power supply vehicle 10 and the trained vehicle 20 are both DC electric vehicles capable of traveling in the DC electrified section. However, the present invention can be similarly applied to AC electric vehicles. It is.

  FIG. 10 is a configuration example of a power supply vehicle compatible with AC electrification that can be used in an AC electrification section, and FIG. 11 is a diagram of a power supply vehicle compatible with AC and DC electrification that is compatible with both a DC electrification section and an AC electrification section. It is a structural example. In any case, the DC link portion of the main circuit 40 (in the case of FIG. 10, the secondary side of the AC / DC converter 43a, FIG. If this is the case, the power supply vehicle electrical connection circuit 12 is connected to the secondary side of the PWM rectifier and DC / DC chopper 43b. A converter 46 and an auxiliary machine circuit 47 are connected in parallel. That is, the circuit configuration after the DC link portion of the main circuit 40 is the same as the circuit configuration shown in FIG.

  FIG. 12 is an example of the configuration of a knitted vehicle that is an AC electric vehicle that can travel in an AC electrified section, and FIG. 13 is an AC / DC train that can handle both the DC electrified section and the AC electrified section. It is a structural example of a formation vehicle. Since the power supplied from the power supply vehicle 10 is DC power, in the knitted vehicle that is an AC train shown in FIG. 12, the knitted vehicle electrical connection circuit 22 is connected to the DC intermediate circuit (secondary side of the AC / DC converter 55). In the knitted vehicle that is connected and is the AC / DC train shown in FIG. 13, the knitted vehicle electrical connection circuit 22 is connected to the front stage of the switching device 52 that is the input stage of the DC main circuit.

  Further, the power train 10 and the knitting vehicle 20 have been described with respect to the overhead line mode in which the main motors M1 and M2 are driven based on the overhead line power. However, instead of the overhead line power, an engine such as a fuel cell or a diesel engine is used. It is also possible to adopt a power generation mode in which the main motors M1 and M2 are driven based on the generated power. In this case, the power supply vehicle 10 and the trained vehicle 20 are configured as a pneumatic vehicle incorporating these motors, but even in that case, the present invention can be applied as in the above-described embodiment.

DESCRIPTION OF SYMBOLS 10 Power supply vehicle 10A Power supply vehicle to be released 10B Power supply vehicle to be connected 12 Electric connection circuit for power supply vehicle LB1 First contactor, LB2 Second contactor LB3 Third contactor, LB4 Fourth contactor 16 Control unit 40 Main circuit 41 Pantograph, 42 Opening / closing device, 43 DC / DC converter 44 Storage battery, 45 Opening / closing device, 46 Drive converter, 47 Auxiliary machinery circuit 20 Trained vehicle 22 Trained vehicle electrical connection circuit LB5 5th contactor, LB6 6th contactor 26 Control Unit 50 Main Circuit 51 Pantograph, 52 Switchgear, 53 Drive Converter 54 Auxiliary Equipment Circuit, 55 AC / DC Converter 30 Leading Line 30a Plus Side Leading Line 32a Power Supply Car Plus Side Connection Terminal, 34a Knitted Vehicle Plus Side connection terminal 30b Minus side lead-in wire 32b Power supply car minus side connection terminal, 34b Knitted car Minus-side connecting terminal

Claims (10)

A power supply vehicle equipped with a storage battery and supplying the stored power of the storage battery to the trained vehicle, and a power supply vehicle provided in the power supply vehicle for connecting the trained vehicle and supplying the stored power to the trained vehicle An electrical connection circuit,
A first contactor having one end connected to the storage battery;
One end side is connected to a DC link portion to which DC power is supplied based on the collected power from the train line by the current collector provided in the power supply car or the generated power of the generator provided in the power supply car, A second contactor having an end connected to the other end of the first contactor;
One end side is connected to the other end side of the first contactor and the other end side of the second contactor, the other end side is a third contactor connected to the power vehicle plus side connecting terminal,
A series circuit of a resistor and a fourth contactor, wherein one end side is connected to the other end side of the third contactor and the power supply vehicle positive side connection terminal, and the other end side is connected to a ground line and a power supply vehicle negative side A series circuit connected to the terminals;
An electric connection circuit for a power supply car equipped with a motor. The power supply vehicle includes a drive converter that drives a main motor based on the stored power.
The first contactor has one end connected to the output stage of the storage battery filter reactor,
The electric connection circuit for a power supply vehicle according to claim 1.   A power supply vehicle comprising the electric vehicle connection circuit for a power supply vehicle according to claim 1. An electrical connection circuit for a trained vehicle provided in the trained vehicle for connecting the power supply vehicle according to claim 3 and the trained vehicle to supply the stored power to the trained vehicle,
The train set is for driving the main motor based on a power collected from a train line by a main motor and a current collector provided in the train set or a power generated by an engine provided in the train set. A converter, and
A fifth contactor having one end connected to the knitted vehicle plus side connecting terminal and the other end connected to the power input side to the drive converter of the knitted vehicle;
A series circuit of a resistor and a sixth contactor, one end side of which is connected to the driving converter side of the fifth contactor and the knitted vehicle plus side connecting terminal, and the other end side of which is a ground line and a knitted vehicle minus A series circuit connected to the side connection terminal;
An electrical connection circuit for a knitted vehicle comprising: The knitted vehicle includes a plus side lead wire and a minus side lead wire that allow power to be exchanged when connected to the other knitted vehicles,
The fifth contactor has the other end connected to the plus-side lead-through line,
The other end side of the series circuit of the resistor and the sixth contactor is connected to the minus-side lead-through line,
The electric connection circuit for knitted vehicles according to claim 4.   A knitted vehicle comprising the electric connection circuit for a knitted vehicle according to claim 4 or 5. A control method for connecting the electrical connection circuit for a power supply vehicle according to claim 1 or 2 and the electrical connection circuit for a knitted vehicle according to claim 4 or 5,
Before the connecting step of connecting the power vehicle plus side connecting terminal and the trained vehicle plus side connecting terminal and connecting the power source vehicle minus side connecting terminal and the trained vehicle minus side connecting terminal, the third A pre-connection step of opening the contactor and charging the fourth contactor, and opening the fifth contactor and charging the sixth contactor;
A pre-conduction step of opening the fourth contactor and the sixth contactor after the connecting step;
A conduction step of performing charging of the third contactor and the fifth contactor after the pre-conduction step;
Control method. An electrical connection circuit for a power supply vehicle according to claim 1 or 2, and a power conversion device that converts the collected power from a train line by a pantograph into direct current power of a given voltage and supplies the direct current power to the direct current link unit. The first contactor is in an open state, and
6. An overhead wire mode comprising the electric connection circuit for a knitted vehicle according to claim 4 or 5, wherein the driving converter drives the main motor based on the power of the overhead wire mode voltage based on the collected power from the train wire by the pantograph. A formation vehicle in
A battery mode switching method for switching to a battery mode for driving by driving the main motor of the trained vehicle based on the stored power of the power supply vehicle,
A pre-connection step of opening the third contactor and throwing the fourth contactor and opening the fifth contactor and throwing the sixth contactor;
After the pre-connection step, a connection step of connecting the power supply vehicle plus side connection terminal and the trained vehicle plus side connection terminal and connecting the power supply vehicle minus side connection terminal and the trained vehicle minus side connection terminal. When,
A pre-conduction step of opening the fourth contactor and the sixth contactor after the connecting step;
A first pressure equalization control step for controlling a voltage supplied to the DC link unit by the power converter to a voltage equivalent to the overhead wire mode voltage;
A conduction step of performing insertion of the second contactor, the third contactor, and the fifth contactor after the pre-conduction step and the first pressure equalization control step;
A first descending step of lowering the pantograph of the trained vehicle after the conducting step;
A second pressure equalization control step for controlling the voltage supplied to the DC link unit by the power converter after the first descent step, corresponding to a storage battery voltage;
After the second pressure equalization control step, a stored power supply start step for turning on the first contactor;
After the stored power supply start step, the collected power supply stop step for opening the second contactor and stopping the conversion operation of the power conversion device;
A second descent step of lowering the pantograph of the power supply vehicle after the collected power supply stop step;
A battery mode switching method including: A control method for releasing the connection between the electric connection circuit for a power supply vehicle according to claim 1 or 2 and the electric connection circuit for a knitted vehicle according to claim 4 or 5,
Before the connection release step of releasing the connection between the power vehicle plus side connection terminal and the trained vehicle plus side connection terminal and releasing the connection between the power vehicle minus side connection terminal and the train vehicle minus side connection terminal. And a pre-connection release step for opening the third contactor and throwing the fourth contactor, and opening the fifth contactor and throwing the sixth contactor,
A post-connection release step of opening the fourth contactor and the sixth contactor after the connection release step;
Control method. An electrical connection circuit for a power supply vehicle according to claim 1 or 2, and a power conversion device that converts the collected power from a train line by a pantograph into direct current power of a given voltage and supplies the direct current power to the direct current link unit. Power car,
A trained vehicle comprising the electrical connection circuit for a trained vehicle according to claim 4 or 5, wherein the drive converter drives the main motor based on the collected power from the train line by a pantograph, and
Is connected, and the pantographs of the power supply vehicle and the trained vehicle are in the lowered state, and the connection is released from the battery mode in which the main motor of the trained vehicle is driven based on the stored power of the power train. An overhead line mode switching method for switching to the overhead line mode in which the trained vehicle can be driven by driving the main motor based on the power of the overhead line mode voltage based on the collected power from the pantograph,
A first raising step for raising the pantograph of the power supply vehicle;
A first pressure equalization control step of starting a conversion operation of the power converter after the first rising step and controlling a voltage supplied to the DC link unit by the power converter to be equivalent to a storage battery voltage; ,
After the first pressure equalization control step, the second contactor is turned on, and then the first contactor is opened, and the power supply switching step is performed.
After the power supply switching step, a second pressure equalization control step for controlling the voltage supplied by the power converter to the DC link unit to a voltage equivalent to the overhead wire mode voltage;
A second ascending step for raising the pantograph of the trained vehicle after the second pressure equalization control step;
A conduction disconnecting step of opening the third contactor and the fifth contactor after the second raising step;
A pre-connection release step in which the fourth contactor and the sixth contactor are inserted after the conduction disconnecting step;
After the connection release step, the connection between the power vehicle plus side connection terminal and the trained vehicle plus side connection terminal is released, and the connection between the power vehicle minus side connection terminal and the trained vehicle minus side connection terminal is performed. A concatenated release step for releasing;
A post-connection release step of opening the fourth contactor and the sixth contactor after the connection release step;
Overhead line mode switching method including

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