JP2011019326A - Train control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flexible train control system capable of readily changing a capability of organizing train cars by exchanging bogies M and T.SOLUTION: An attribute recording unit 21 stores the attributes indicating performance of equipment installed on each car. A general control unit 24 reads the attribute information through an information transmission line from an attribute recording means of each car, and determines the drive performance of all the train cars. Also, the general control unit 24 controls the drive force of the train in accordance with the drive performance of this train cars.

Description

  The present invention relates to a train control system, and more particularly, to a train control system that changes a traveling capacity of a train by exchanging a carriage, grasps the changed traveling capacity, and controls the train.

  In general, an electric vehicle drive device that rotates and drives wheels mainly includes a main motor and a VVVF inverter. In the electric vehicle driving apparatus, a VVVF inverter is loaded under the floor of the vehicle body, and in a carriage provided with wheels, a main motor for driving the wheels and a brake shoe for applying a braking force to the wheels are arranged. For this reason, the wiring is complicated, such as the power line and the signal line of the speed detector extending from the main motor in the carriage to the vehicle body side, and there is a problem that man-hours are required for vehicle production. In order to solve such a problem, the following Patent Document 1 discloses a configuration in which a VVVF inverter and a main motor are provided in a carriage.

JP2007-336779

  The cart having the above drive device is called an M (motor) cart, and the cart having no drive device is called a T (trailer) cart. The number of T and M carts in one train was fixed for each train train. For example, when improving the acceleration / deceleration performance of a train, it is necessary to change the number of M carriages or the like for each vehicle and recalculate the torque command value or the like to a value suitable for the train. Thus, conventionally, performance (knitting ability) such as driving force of one knitting cannot be easily changed.

  The present invention has been made in view of the above-described problems, and is a flexible train that can easily change train formation capability by switching between T and M carriages, and can control the train by grasping the changed formation capability. An object is to provide a control system.

  In order to solve the above problems, a train control system according to the present invention is a train control system formed of a plurality of vehicles, and stores an attribute indicating a capability of a device provided in each vehicle and installed in the vehicle. An attribute recording means; a judgment means for reading the attribute information from the attribute recording means of each vehicle via an information transmission line and judging the driving ability of the entire knitting; and the driving ability of the whole knitting determined by the judging means Accordingly, a control means for controlling the train driving force is provided.

  Provided is a flexible train control system that can easily change the performance (knitting ability) such as the driving force of one train formation by exchanging the T carriage and the M carriage, grasp the changed organization ability, and control the train.

It is a figure which shows the structure of the train organization to which the train control system by this invention is applied. It is a figure which shows the structure of the various trolley | bogie 18 applied to 1st Example of this invention. It is a figure which shows the structure of the train organization to which the train control system which concerns on 2nd Example of this invention is applied. It is a figure which shows the electrical constitution of the M cart 18a which concerns on 2nd Example of this invention. It is a figure which shows the capability allocation of an inverter. It is a figure explaining the number of the inverters which operate | move as an inverter operated as an auxiliary power supply, and driving. It is a figure which shows the difference of the power running performance and the brake performance of the train train to which the present invention train is applied. It is a block diagram which shows the structure of the comprehensive control system which concerns on 3rd Example of this invention. 3 is a block diagram illustrating a configuration of a state monitoring unit 41. FIG. 3 is a diagram illustrating a configuration example of a general control unit 24. FIG. It is a flowchart which shows the determination process of an organization policy. It is a figure which shows an example of the matrix used for the determination of an organization policy.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a train organization to which a train control system according to the present invention is applied. As an example, this train is composed of 10 cars.

  Each vehicle 11 is provided with two carriages 18, and each carriage is an M carriage 18a or a T carriage 18b. The M carriage 18a is a motor-driven carriage, and two sets of the inverter 17 and the motor 23 are provided. The motor 23 is, for example, a permanent magnet synchronous motor suitable for small size and light weight. The T cart 18b is a cart without a driving device. Each carriage 18 is connected to the main body of the vehicle 11 through an attachment port 22. The attachment port 22 is provided on the vehicle body side, and its structure is the same in all vehicles. Therefore, the mechanical structure of the upper part of the carriage, that is, the part connected to the attachment port is the same in all carriages 18.

  The first power line 15 connected to the pantograph 12 is wired to each attachment port 22. The first power line 15 is supplied with, for example, DC 1500V from the overhead line 10 via the pantograph 12. The direct current 1500V is supplied from the first power line 15 to the inverter 17 of the M cart 18a via a connector (not shown).

  The second power line 14 is a line for transmitting three-phase 440V for auxiliary equipment. The three-phase 440V is generated by an auxiliary power source (not shown). This auxiliary power source converts, for example, direct current 1500V supplied from the first power line into auxiliary three-phase 440V. The second power line 14 is wired from an auxiliary power source to each attachment port 22 and further connected to an auxiliary machine 13 mounted on each vehicle such as an air conditioner.

  The control transmission line 16 is wired from the general control unit 24 to each attachment port 22. The control transmission line 16 transmits information for controlling the inverter 17 and the like. The control transmission line 16 transmits a signal for controlling the auxiliary machine 13 and the like.

  FIG. 2 is a diagram showing the configuration of various carts 18 applied to this embodiment.

  In addition to the M carriage 18a and the T carriage 18b, the carriage 18 includes a 0.5M carriage 18c in which one set of the motor 23 and the inverter 17 is mounted, an INV carriage 18d in which only the inverter 17 is mounted, and a BAT in which only the battery 34 is mounted. There is a dolly 18e. Further, an auxiliary power source for auxiliary equipment may be mounted on the carriage.

  The train to which this embodiment is applied can easily replace the M carriage 18a with another carriage such as the T carriage 18b. That is, various vehicles can be attached to each vehicle according to the required performance. For example, when the T carriage is replaced with the M carriage, the driving performance and the regenerative braking performance can be improved. In addition, since the M carts can be replaced with each other, it is possible to improve early recovery and maintainability at the time of failure. By assembling at least one M cart on one vehicle, the vehicle can move by itself.

  The attribute recording unit 21 provided in each carriage 18 records the attributes (capabilities) of the devices 17, 34, and 23 mounted on the carriage 18. The general control unit 24 reads the capability of each carriage 18 recorded in the attribute recording unit 21 via the control transmission line 16, so that the overall capability (organization capability) of the train, for example, the overall pull of the train The force / brake force characteristics can be determined. The overall control unit 24 controls the driving force of the train and the like according to the knitting ability determined in this way.

  As described above, according to the first embodiment of the present invention, it is possible to provide a flexible train control system that realizes the required knitting capacity by combining carriages having various capabilities. Further, by standardizing the inverter (main conversion device) 17, management becomes easy and cost reduction is realized. All routes can be operated by trains using common-standard trucks. Furthermore, by arranging the vehicle-mounted device in the carriage, for example, a power storage device can be mounted in the open underfloor space to realize power assist and power recycling.

  Note that the attribute information and control information of the attribute recording unit 21 may be transmitted wirelessly instead of wired like the control transmission line 16. In addition, the attachment port 22 may be provided with means for opening the power line in order to protect workers when the carriage is replaced. Furthermore, if each vehicle is equipped with an M cart 18a or 0.5M18c cart and a battery cart 18e, each vehicle can run on its own.

  Next, a second embodiment of the present invention will be described. The train according to the second embodiment includes an inverter that operates in the dual mode, and optimally distributes the total inverter capacity provided in the train to the driving force (VVVF) and the auxiliary power source (SIV) in real time.

  FIG. 3 is a diagram showing a train organization configuration to which the train control system according to the second embodiment of the present invention is applied.

  The structure of the train according to the second embodiment is the same as that of the first embodiment. In the second embodiment, all M carriages are used as the carriage, and all or part of the mounted inverters operate in the dual mode. Note that it is not an essential condition of the present invention that all carts are M carts. As the number of M carts used (the number of motor drive shafts) is larger than usual, the features of the present invention become more prominent.

  For example, one of the two inverters 17 provided in the M carriage 18a may be operated in the dual mode. When configured in the dual mode, the inverter 17 generates, for example, one of the auxiliary three-phase 50 Hz voltage and the three-phase VVVF voltage for driving the motor 23 under the control of the general control unit 24.

  FIG. 4 is a diagram showing an electrical configuration of the M carriage 18a according to the present embodiment.

  The inverter 17a is a VVVF inverter for driving a motor, and the DC power supplied from the first power line 15 via the contactor 19 and the connector 20 is converted into a variable voltage variable frequency three under the control of the general control unit 24. The motor 23 is driven by converting into phase power.

  The inverter 17b is an inverter that operates in a dual mode, and provides three-phase AC power to the motor 23 and three-phase AC power to the vehicle-mounted auxiliary machine 13 such as an air conditioner. The DC terminal of the inverter 17b is connected to the first power line in the same manner as the inverter 17a. The AC terminal of the inverter 17 b is connected to the primary side of the motor 23 and the transformer 32 via the switch 31, and the secondary side of the transformer 32 is connected to the second power line 14 via the connector 20. The switch 31 includes semiconductor switches 31a and 31b. When the motor 23 is driven, the switch 31a is turned off and 31b is turned on, and the inverter 17b operates in the same manner as the inverter 17a. When the auxiliary machine power is supplied, the switch 31a is turned on, the 31b is turned off, and the inverter 17b generates three-phase power having a constant frequency. The transformer 32 steps down the three-phase AC voltage of the inverter 17b to an auxiliary power supply voltage and provides an auxiliary power supply (SIV). Here, the secondary sides of the plurality of transformers 32 are connected in parallel by the second power line 14. The circuit block including the inverter 17b, the switch 31, and the transformer 32 may be a dual mode inverter that operates as an inverter for driving a motor or an auxiliary machine.

  Converter 33 steps down DC 1500 V supplied from first power line 15 via contactor 19 to store battery 34. The converter 33 boosts the voltage of the electric power stored in the battery 34 and supplies the electric power to the first power line via the contactor 19.

  The train control system according to the second embodiment optimally distributes the total inverter capacity in the train to the driving power (VVVF) and the auxiliary power supply (SIV) in real time.

  FIG. 5 is a diagram showing the capacity allocation of the inverter.

  FIG. 5A shows the distribution of VVVF and SIV in the conventional system. In general, the motor driving VVVF inverter and the auxiliary power source inverter are provided independently in the vehicle, and the number of each is determined and is not generally changed. Of all the VVVF inverters provided in one train, the number of inverters that operate during actual traveling is determined as a ratio 102, and a predetermined number of VVVF inverters are waiting as spare inverters as a ratio 101. . Similarly, the number of SIV inverters that operate during the actual operation of the auxiliary power supply is determined as a ratio 103, and a predetermined number of SIV inverters stand by as standby inverters as a ratio 104.

  FIG.5 (b) shows distribution of VVVF and SIV of this system. The auxiliary power supply according to the present system is all provided by an inverter that operates in a dual mode. The required number of inverters 17b is allocated as SIV power as in the ratio 112, and all the remaining numbers are allocated as driving power as in the ratio 111. No standby inverter is provided. By doing so, the adhesion limit as a train is increased, and stable running without idling / sliding becomes possible. The number of inverters allocated as SIV power and VVVF driving force can be changed in real time even while traveling. As shown in FIG. 5C, during emergency braking, the driving force (braking force) is prioritized and only the minimum necessary number is assigned to the auxiliary power supply or all is assigned as the VVVF driving force. The ratio of the inverter used as the power of these SIVs and the inverter used as the driving force is determined by the overall control unit 24 by judging the traveling conditions.

  The total number of inverters provided in the system according to the second embodiment is smaller than the total number of VVVF inverters and SIV inverters in the conventional system. By changing the ratio of the inverter used as the SIV power and the inverter used as the driving force in real time, the redundancy and safety of the inverter circuit can be secured.

  In a train set according to an embodiment, for example, a large number of small capacity drives (inverters and motors) are arranged to improve the remaining capacity of VVVF performance as a driving force. Accordingly, the high-speed performance is improved and the acceleration time is shortened, so that the disturbance of the train schedule can be reduced and the energy-saving operation can be performed. In addition, the uniaxial load of driving force and braking force is reduced, so that idling / sliding can be prevented and regenerative braking performance can be improved. As a result, a desired braking force can be obtained without providing a conventional air brake (air control) brake. When the air brake is not provided, as a countermeasure against regenerative invalidation, a power storage device 34 that absorbs regenerative power, a high slip brake, or a simple brake device for emergency stop may be provided.

  FIG. 6 is a diagram for explaining the number of inverters operated as auxiliary power supplies and the number of inverters operated for driving. For example, in the season when few cooling devices (air conditioning) are used, such as spring and autumn, the number of inverters 17S operating as an auxiliary power source is reduced as shown in FIG. Acceleration performance and electric control (electric control) brake performance can be improved by using all the remaining inverters as the drive inverter 17V. Further, when the cooling device is to be fully operated as in midsummer, the number of inverters 17S that operate as an auxiliary power source is increased as shown in FIG. 6B. As a result, a comfortable in-vehicle temperature can be provided to the passenger. The operation mode switching of the inverter may be automatically performed by the control unit 24 or may be manually performed by the driver on the cab in consideration of the season, traveling conditions, time zone, and the like. .

  FIG. 7 is a diagram showing the difference in performance between a conventional train and a train train to which the present invention is applied.

  A characteristic 201 indicates the performance of the conventional knitting. Thus, in the case of the conventional knitting, the maximum tensile force (torque) is accelerated up to a predetermined speed V1, and when the speed exceeds V1, the tensile force gradually decreases and travels at a predetermined power. A characteristic 202 indicates the performance of the knitting to which the present embodiment is applied. In the knitting to which the present embodiment is applied, since the number of VVVF inverters operating to generate the driving force is larger than that in the past, the potential performance in the knitting is higher than in the past. However, in the low speed range up to the speed V1, the vehicle travels by generating a tensile force as in the characteristic 201, for example, in accordance with the conventional train. In the knitting according to the present embodiment, it is possible to run while maintaining the tensile force (acceleration) even when the speed V1 is exceeded as in the region 203. In the region 203, the input current becomes large, and the overhead line voltage may become a specified value or less. Therefore, in the region 203, the electric power stored in the power storage device 34 is discharged, and the peak cut (auxiliary) of the current supplied from the overhead line is performed, thereby preventing the overhead line voltage from becoming a specified value or less.

  As described above, according to the present embodiment, a system that emphasizes the acceleration / deceleration characteristics of a train or a system that emphasizes the auxiliary power capacity, etc. It is possible to provide a flexible train control system that can be optimally allocated to the inverter and the inverter for the auxiliary power supply and can be easily allocated in real time.

  Next, general control according to the third embodiment of the present invention will be described.

  The conventional train system has an automatic train operation device (ATO) and a function to distribute the knitting brake force. However, the degree of freedom of the control is high. Driving for the purpose.

  However, coordinated driving across multiple functions is not performed. Therefore, depending on the case, there is a case where the operation is contradictory or the operation that places a burden on the device is forced.

  The general control unit according to the present embodiment determines a composition policy for the entire composition, that is, a composition policy (which guideline should be used for this train now) in consideration of various information related to train composition. Based on this organization policy, the operation between each device or each function is adjusted, and controlled control without contradiction is performed.

  FIG. 8 is a block diagram illustrating the configuration of the overall control system according to the present embodiment. The general control unit (hereinafter, referred to as a control unit) 24 inputs information generated by the state monitoring unit 41, the device capability management unit 42, and the security control unit 43 as a primary index, and trains based on the primary index Decide what to do now (policy). This policy includes emergency response processing, energy saving measures, travel time reduction processing, and the like.

  The state monitoring unit 41 includes long-term and short-term risks (abnormality and failure) of each device 49 (brake device, drive device, energy storage device (power storage device), auxiliary machine, etc.), other train status, overhead voltage status, etc. Collect and grasp dynamic information inside and outside the train. The equipment capability management unit 42 calculates the capability of each device 49 connected to the system, and grasps the potential of the train organization. The safety control unit 43 decelerates and stops the train based on the signal in order to avoid a collision accident of the train.

  In order to realize the determined policy, the control unit 24 outputs various control information as a composition policy to the automatic train operation device 44, the composition capacity distribution unit 46, the energy management unit 47, the auxiliary machine control unit 48, and the like.

  The automatic train driving device 44 controls the force (knitting force) of the entire knitting so as to travel between stations according to the knitting policy from the control unit 24. The automatic train operation device 44 outputs an acceleration / deceleration command to the knitting capability distribution unit 46 based on the train speed and position from the speed / position detection unit 45, the start command and the limit speed signal from the control unit 24, and the like. . The knitting ability distribution unit 46 determines to which apparatus the tensile force and braking force of the entire knitting are distributed according to the knitting policy from the control unit 24 and the like. The energy management unit 47 manages the charge / discharge amount of energy according to the organization policy from the control unit 24. The auxiliary machine control unit 48 controls auxiliary machines such as an air conditioner in accordance with the organization policy from the control unit 24.

  FIG. 9 is a block diagram illustrating a configuration of the state monitoring unit 41.

  The state monitoring unit 41 calculates a part of the primary index necessary for creating the composition policy. Hereinafter, the device state monitoring unit 50 and the operation state monitoring unit 51 constituting the state monitoring unit 41 will be described.

(1) Device state monitoring unit 50
The device state monitoring unit 50 calculates the risk of protection or failure from the information of each device as a risk. Each device is, for example, a main motor, a VVVF inverter, a BCU, an auxiliary power supply device, an air conditioner, a compressor, or the like.

  For example, if the main motor and the VVVF inverter continue to operate due to an overload, the protection will be stopped due to the temperature rise, affecting the operation. Therefore, the device state monitoring unit 50 calculates a device risk index based on the temperature of such a device. The equipment risk index related to this temperature is obtained by indexing a margin corresponding to the difference between the detected temperature of each equipment installed in the train and the operating temperature upper limit value of the equipment.

  When the control unit 24 determines that the risk avoidance operation is possible in determining the composition policy, the control unit 24 reduces the risk of the device having a high equipment risk index (that is, does not operate the equipment or reduces the current value). It can be operated while suppressing temperature rise. Furthermore, the control unit 24 can also be operated by increasing the power of other devices having the same function so as to compensate for the power of the device whose power is reduced due to current limitation or the like.

  Moreover, if the apparatus state monitoring part 50 extracts the frequency spectrum which does not appear in a normal state from rotation speed information, such as an air conditioner, a compressor, and a main motor, it will judge that it is a sign of failure. In other words, the device state monitoring unit 50 calculates a device risk index based on such device rotation speed information. In determining the composition policy of the control unit 24, if possible, the composition operation can be performed so as to avoid such a risk of failure.

(2) Driving status monitoring unit 51
In order to determine the composition policy, information on the amount of auxiliary machinery electric power and driving force required for traveling between stations, information on the external conditions of the train train, and the remaining energy capacity of the energy storage device are required. is there. The driving condition monitoring unit 51 provides these pieces of information as indices.

  Hereinafter, various indexes created by the driving situation monitoring unit 51 will be described.

[Auxiliary energy index]
The auxiliary machine electric energy prediction unit 52 calculates the electric energy required for auxiliary machines such as air conditioning as an auxiliary machine electric energy index. For example, the force required for driving (as well as braking) is affected by the boarding rate, and the auxiliary machine power amount is affected by the outside air temperature, humidity, and boarding rate. The occupancy rate can be detected by a variable load signal, and since there is a correlation with season (or temperature) and time, it can be predicted accordingly. The outside temperature and humidity are also correlated with the season (or temperature) and time and can be predicted. The auxiliary machine power amount prediction unit 52 predicts a required auxiliary machine power amount based on these pieces of information and provides it as an auxiliary machine power amount index.

[Course indicator]
The forward train prediction unit 53 calculates the route status as a route index based on the operation status of the forward train such as whether the train is approaching in front. If the course is bad, even if you drive forcibly, the brakes are only applied and decelerated by safety control. This also deteriorates the ride comfort and causes energy loss. In addition, when the host vehicle decelerates, it affects the following trains and increases the delay as a whole.

  Therefore, in determining the composition policy of the control unit 24, if it is bad according to the course index, it is possible to contribute to stable running (stable transportation) by adopting a slow driving plan.

[Overhead voltage index]
The high overhead voltage is also an important factor for operation. The overhead line voltage predicting unit 54 predicts the overhead line voltage and provides an overhead line voltage index (high / low). For example, the tensile force in the medium to high speed range is higher when the overhead wire voltage is higher. This indicates that acceleration is better when the overhead wire voltage is higher than when the overhead wire voltage is low, and the travel time margin becomes larger. Therefore, considering this overhead line voltage information, the “knitting ability” changes, and it is more advantageous to determine the knitting policy according to this knitting ability.

The magnitude of the overhead line voltage depends on the driving force of other trains and the own vehicle. Therefore, the overhead line voltage can be estimated from factors such as schedule, operation status, season and time.

[Energy surplus index]
A vehicle equipped with an energy storage device can control the amount of electric power (from the overhead line) that affects the magnitude of the overhead line voltage. However, this amount of electric power depends on the remaining energy (SOC). The energy reserve calculation unit 56 calculates the reserve capacity of the energy storage device (the SOC at that time with respect to the SOC usage range) as an energy reserve index. This energy surplus index can also be taken into account in calculating the overhead wire voltage index.

[Slip index]
The idling / sliding prediction unit 55 analyzes the idling / sliding situation in the train and calculates a slip index indicating whether or not the travel line section is slippery. Further, the idling / sliding prediction unit 55 determines whether or not there is a slippery portion in the knitting (such as before and after the knitting) or a slippery axis.

In particular, the idling prediction unit 55 has a slippery situation,
(A) A level that affects the overall knitting force (that is, a level at which acceleration / deceleration decreases),
(B) A level at which power can be redistributed and corrected,
(C) Level that is not slippery,
In this way, a “slip index” is generated.
In determining the organization policy of the control unit 24,
If it is (C), it is not necessary to consider idling / sliding.

If it is (A), it is better to plan by lowering the knitting ability (driving force / braking force) so as not to slip. At this time, since the load of the driving / braking force of each axis is limited to be lowered, the knitting ability may be lowered.

In the case of (B), there is a risk of idling and in balance with other indicators,
・ Time priority (This policy requires the most driving force, and the risk of skidding is high)
・ Energy saving priority (Although there is enough time, driving is energy-efficient, so driving itself is severe and the risk of idling is high)
-There is room for policy selection of stable operation (there is time, but stable driving is the top priority, so the burden on each axis is reduced to avoid the risk of idling).

  Since it is necessary to limit the axial load force according to the slip index, this index is sent to a predetermined function (in this example, a knitting ability distribution unit 46 described later) via the control unit 24.

  FIG. 10 is a diagram illustrating a configuration example of the overall control unit 24.

A primary index is input to the control unit 24. The knitting ability calculation unit 62 calculates the knitting ability based on the primary index provided from the state monitoring unit 41, the equipment capability management unit 42, the security control unit 43, and the additional conditions described later of the knitting policy determination unit 61. To do. The composition capacity is the power train pulling force (considering the overhead line voltage index and the energy surplus index), the regenerative braking force (considering the overhead line voltage index and the energy surplus index), and the braking force (regeneration + empty) System).
The knitting index calculation unit 63 obtains a knitting index described later according to the primary index and the knitting ability. The composition policy determination unit 61 determines a composition policy based on the primary index and the composition index provided from the composition index calculation unit.

  Next, an organization policy determination process will be described. FIG. 11 is a flowchart showing an organization policy determination process.

  First, as in step ST01, the composition policy determining unit 61 calculates the inverter output power capacity necessary to cover the predicted auxiliary power amount based on the auxiliary power amount index obtained from the auxiliary power amount predicting unit 52. Then, the inverter corresponding to the power capacity in the train is assigned to the auxiliary power source as in the second embodiment, and the rest is assigned to the driving force.

  Next, as in step ST02, the composition index calculation unit 63 determines four indices according to the current situation.

(1) Emergency index: An index indicating whether an emergency stop state is based on a signal from a security device or the like.

(2) Time margin index: An index corresponding to a value indicating how many seconds there is for a predetermined travel time. In other words, the time margin index is an index corresponding to the time of the difference between the time when the vehicle arrives at the next station with maximum acceleration and the scheduled arrival time indicated on the operation schedule. This can be obtained by performing a running simulation based on the knitting ability.

(3) Equipment risk index: An index indicating whether each equipment has a risk of continuation of operation. For this, the device risk index calculated by the device state monitoring unit 50 can be used.

(4) Idle / sliding index: An index indicating whether or not there are frequent idling / sliding situations. This can use the slip index calculated by the idling slip prediction unit 55.

  For example, when there is an instruction for recovery operation, (2) an index of time margin may be considered.

  Next, as in step ST03, the composition policy determination unit 61 determines whether a secondary index should be calculated.

  FIG. 12 shows an example of a matrix used for determining an organization policy. The leftmost column is a state number indicating various traveling states.

  In the knitting index (first knitting index) calculated as in step ST02 described above, the state No. 1-No. When there is no equipment risk as shown in FIG. 5, the composition policy determining unit 61 determines the main composition policy (operation plan) and sub-policy (driving force distribution, accessory operation, operation of the energy storage device) based on the first composition index. ) Is determined (ST04).

  In the matrix of FIG. 12, for example, the time margin “0” of the first knitting index is a recovery operation level and is a level that requires a reduction in travel time (delayed). The time margin “1” is a level with no margin, and with the current running ability, it is a state where it is full to run for a predetermined time, and there is no time margin. The time margin “2” is a level with a margin, and is a state in which there is a time margin with the current running ability. At this level, a relatively free running pattern can be formulated. It should be noted that at least two or more composition indexes such as an emergency index and an apparatus risk index are created and referred to when determining the composition policy.

  In the primary knitting index, the state No. 6-No. When there is a device risk as in FIG. 10, the composition policy determination unit 61 calculates a second composition index and determines a composition policy (secondary policy) under conditions (additional conditions) that avoid the device risk ( ST05 to ST07).

  For example, the composition policy determination unit 61 may include a state No. As shown in FIG. 6, when the device risk index is “present”, the second organization index is calculated, and the main organization policy and the sub organization policy are determined so that the device risk index is “0: None”. In such a case, in order to avoid the device risk, the sub-policy (driving force distribution) is set to “1” and the knitting capability distribution unit 46 is controlled to reduce the risk of the device having a high device risk. For example, when the temperature rise of the drive inverter 17V is a device risk, the knitting ability distribution unit 46 stops the operation of the equipment or reduces the electric power (current). This “driving force distribution” is set for driving the motor when the motor (main motor) and the auxiliary machine are supplied with power by the inverter operating in the dual mode as in the second embodiment. And the distribution of the number of inverters set for auxiliary power for auxiliary equipment. The “drive force distribution” also includes a regenerative brake force distribution corresponding to the number of inverters set for driving the motor.

  At this time, the composition policy determination unit 61 sets the sub-policy (auxiliary machine) to “1”, for example, and controls the auxiliary machine control unit 48. The auxiliary machine control unit 48 performs the peak cut operation so as not to reach the maximum load. That is, the auxiliary machine control unit 48 operates the auxiliary machine so as not to exceed the power capacity of the auxiliary power source.

  Next, the energy management unit 47 in FIG. 8 will be described.

  When the organization policy is determined, how to travel between stations (travel plan) is roughly determined.

The energy management unit 47 performs energy control of the energy storage device so that the organization policy and the travel plan from the control unit 24 can be observed.

  For example, in the case of a travel plan that allocates a small amount of auxiliary machine electric power, allocates a large driving force, and accelerates to high speed, “1: priority is given to supplement at powering high speed” is determined as the sub-policy (energy storage device). In this case, the energy management unit 47 assists the current of the driving device with the energy stored in the energy storage device at a high speed range where the overhead wire voltage is likely to decrease (when the overhead wire voltage decreases, the driving force also decreases from the plan) (peak). Cut the energy). As a result, the peak of the current supplied from the overhead line is cut, a decrease in the overhead line voltage can be avoided, the driving force of the host vehicle can be ensured, and it can be supported to travel according to the travel plan.

  The same applies to the deceleration of the brake, and the energy management unit 47 performs energy control so that the regenerative power can be absorbed by the braking operation in the high speed range. When the regenerative power is large, the overhead wire voltage increases, and when the overhead wire voltage exceeds a predetermined value, the regenerative power is narrowed down and the supplementary force of the air brake is increased.

  In addition, the energy storage device normally has a charging depth SOC (degree of charge / discharge) within a predetermined range from the viewpoint of life, etc., but the energy management unit 47 specially expands the SOC range according to the organization policy. You can also As described above, the acceleration performance varies depending on the overhead wire voltage. Therefore, when the organization policy of “emergency” or “reduction of recovery operation level time” is determined, it is possible to contribute to time reduction by expanding the SOC range and using the energy storage device.

  As described above, according to the third embodiment of the present invention, it is possible to adjust the operation between each device or each function in train formation, and to execute a controlled control without contradiction. Therefore, there are effects such as stable operation (running without delay), shortening of driving time, energy saving effect, and ride comfort improvement.

  The above description is an embodiment of the present invention and does not limit the apparatus and method of the present invention, and various modifications can be easily implemented. Further, the overall control of the train described as the third embodiment of the present invention can be applied to a conventional train formation that is not equipped with an inverter or ATO that operates in a dual mode.

  DESCRIPTION OF SYMBOLS 10 ... Overhead wire, 11 ... Vehicle, 12 ... Pantograph, 13 ... Auxiliary machine, 14 ... Second power line, 15 ... First power line, 16 ... Control transmission line, 17 ... Inverter, 18a ... M cart, 18b ... T cart , 19 ... contactor, 20 ... connector, 21 ... attribute recording unit, 22 ... mounting port, 23 ... motor, 24 ... general control unit, 31 ... switch, 32 ... transformer, 33 ... converter, 34 ... battery.

Claims (5)

A train control system composed of multiple vehicles,
Attribute recording means that is provided in each vehicle and stores an attribute indicating the capability of the equipment installed in the vehicle;
A determination unit that reads the attribute information from the attribute recording unit of each vehicle via the information transmission line and determines the driving ability of the entire knitting,
A train control system comprising control means for controlling a train driving force in accordance with the driving ability of the entire train determined by the determining means.   Each vehicle has a common attachment port in which a power line and an information line for the device are combined, and each device is connected to the vehicle through the attachment port as necessary. The train control system according to claim 1. Each vehicle comprises a carriage with wheels and suspension,
The device includes a main motor that drives wheels, and a main converter that drives the main motor, both provided in the carriage,
Each bogie has a structure that can be replaced with another bogie, and a common attachment port having the power line of the main converter and the information transmission line is provided at the connecting portion of each bogie and the vehicle body. The train control system according to claim 1, wherein each carriage is connected to the vehicle via the common attachment port.   4. The train control system according to claim 2, wherein the device includes an auxiliary power source for an auxiliary device in the vehicle, and the power line includes an auxiliary power source power line for the auxiliary device in the vehicle of the auxiliary power source. . The device includes a dual mode inverter, the dual mode inverter comprising:
An inverter that converts direct current to three-phase alternating current;
Switching means for switching the output alternating current of the inverter to one side of the auxiliary power supply power line and the main converter power line;
5. The train control system according to claim 4, further comprising a transformer connected to the switching means and converting an output AC voltage of the inverter into an AC voltage for an auxiliary machine and supplying the AC voltage to the auxiliary power supply power line. .

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