JP2008024206A - Control device for controlling power supply of mobile body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device for controlling the power supply of a mobile body capable of controlling the power in the entire mobile body, realizing the energy saving, preventing any disturbance of the operation, and optimizing equipment. <P>SOLUTION: The control device comprises a power control system 11 which estimates the required power for operating a mobile body based on the operational diagram for performing the operation of the mobile body and the position of the mobile body, and optimally distributing the estimated required power between ground power supply facilities, a ground power control device 19 for controlling the power supply to the mobile body from the ground power supply facilities based on the instruction for power supply distributed by the power control system 11, and a mobile body power control device 24 for controlling the power supply to a mobile body 20 based on the instruction for power supply distributed by the power control system 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile power supply management control device that manages and controls power supply of a mobile body that travels on a traveling path, such as a train railway system, a new transportation system, and a logistics system.

  In the present invention, a vehicle traveling on a road such as a train railway system, a new transportation system, and a logistics system, for example, a moving body such as a train, an automobile, and a transportation vehicle is supplied with electric power from a ground power supply facility (substation). Running. Hereinafter, a railway system vehicle will be described as an example of the moving body.

  FIG. 7 is an explanatory diagram of the train railway system. In the train railway system, the stops are the homes 1a and 1b, and the vehicles 2a and 2b travel on the travel paths 3a and 3b. Electric power for train operation is supplied from the substation 4 to the vehicles 2a and 2b through power lines such as overhead lines, and the train is operated based on a predetermined operation schedule. The train is operated along an operation curve created based on the vehicle characteristics of the standard vehicle. The operation curve defines the train speed and operation notch operation for each position of the train.

  In substation 4, power equipment is set up so that it can supply the train with electric power commensurate with the driving schedule. However, due to changes in operation over time, such as an increase in the number of driving schedules, and disruption of driving schedules due to vehicle breakdowns, etc. On the other hand, there is not always a sufficient and surplus power supply. In particular, the power supply may not be sufficient in the end section far from the substation.

  On the other hand, there is an attempt to control a feeding voltage by installing a thyristor rectifier in a substation. At present, although some limited substations are manually implemented, power control is not performed dynamically with a central power management system.

  On the other hand, recently, there are many vehicles that use a regenerative brake, and when the regenerative brake cannot be regenerated, it expires and the energy is lost. In addition, since the mechanical brake operates, there is room for improvement in terms of maintenance. For this reason, development of trains that install power storage devices in vehicles is underway.

Here, the remaining storage power of the power storage means that stores the power used by the train moving on the road using the power is measured, and the train travel plan is made based on the detected remaining power amount, etc. In addition, there is one that controls a traveling body such as a train that is rich in safety (for example, see Patent Document 1).
JP 2005-124291 A

  However, when the power supply from the substation is not sufficient, the train cannot produce the desired speed due to the voltage drop of the train line, and as a result, the required time increases and the delay may become worse. In addition, a plurality of trains cannot be started at the same time, and restrictions may be imposed on the start-up.

  In addition, since the number of trains cannot be increased beyond the capacity of the substation, it is necessary to reinforce the power supply facilities in order to increase the number of trains. Will occur.

  An object of the present invention is to provide a mobile power supply management control device that can perform power management for the entire mobile body, realize energy saving, prevent disturbance of operation, and optimize equipment. It is in.

The mobile power supply management control device of the present invention includes a power feeder that supplies power to a mobile using ground power supply equipment, and includes a power storage device in a part of the mobile, and the power collected by the mobile In the mobile power supply management control device that manages and controls the power supplied to the moving body moving on the traveling path using the power built in the power storage device, the operation diagram that controls the operation of the moving body and the position of the moving body A power management system for predicting the required power for mobile operation based on this and optimally allocating the expected required power among the ground power supply facilities, and based on a power supply instruction distributed by the power management system A ground power control device that controls power supplied from a ground power supply facility to the mobile body, and a mobile power that controls power supplied to the mobile body based on a power supply instruction distributed by the power management system And a control device,
It is provided with.

  ADVANTAGE OF THE INVENTION According to this invention, the power management of the whole mobile body can be performed, energy saving can be implement | achieved, the disturbance of operation can be prevented, and the optimization of an apparatus can be aimed at.

  FIG. 1 is a block diagram of a mobile power supply management control apparatus according to an embodiment of the present invention. FIG. 1 shows a case where the present invention is applied to a DC feeder system employed in urban railways and private railways. A power management system 11 is installed on the ground as a system for managing the total power of the route. The power management system 11 includes a power management system central device 11a and a power management system slave station 11b. The power management system central device 11 a is coupled to the operation management system 12 that manages the operation of the train by a LAN 13. Thereby, as for the position of all the trains, what is recognized by the operation management system 12 can be used by the power management system 11 in real time.

  A power management system slave station 11 b is installed in the ground power supply facility (substation) 14, and these are connected by a LAN 15 of the power management system 11. The power management system slave station 11b is not necessarily installed in the ground power supply facility 14, and can be installed in a place other than the ground power supply facility 14. Between the power management system slave stations 11b, a wireless network may be used instead of a terrestrial LAN facility.

  The ground power supply facility 14 includes a receiving end and an AC bus 16 for receiving electric power transmitted from an electric power company or an independent power plant, an AC bus 16, a DC bus 17 for feeding a train with DC, and AC to DC A converter 18 for conversion and a ground power control device 19 for controlling the converter 18 are installed.

  The mobile body (vehicle) 20 is supplied with power from the DC bus 17 of the ground power supply facility 14 via the feeder device 21. In addition, the mobile body 20 includes a power storage device 22 and a mobile power control device 24, and the mobile power control device 24 controls the power collected by the mobile body 20 and the power built in the power storage device 22 so as to travel the road. 23.

  The power management system 11 predicts the required power for the operation of the mobile body 20 based on the driving schedule that controls the operation of the mobile body 20 and the position of the mobile body 20, and the predicted required power is transferred to the ground power supply facility 14 and the mobile It is optimally distributed with the power storage device 22 in the body 20. The ground power control device 19 controls the converter 18 based on the power supply instruction distributed by the power management system 11 and controls the power supplied from the ground power supply facility 14 to the moving body 20. In addition, the mobile power control device 24 receives the power supply instruction information distributed by the power management system 14 via the ground-on-vehicle information transmission device 25 and moves based on the received distributed power supply instruction. The power supplied from the power storage device 22 in the body 20 to the moving body 20 is controlled.

  FIG. 2 is a configuration diagram of the power management system 11. In FIG. 2, in the power management system 11, the travel of all the mobile bodies 20 is performed using the positions of all the mobile bodies (trains) 20 detected by the mobile body position detection device 26 and the operation diagram 37 determined by the operation management system 12. Make a prediction.

  As a method for detecting the position of the moving body 20, there is a method of obtaining from the operation management system 12 instead of detecting by the moving body position detecting device 26. Further, as the mobile body position detection device 26, a transmitter is mounted in the mobile body 20, a method of grasping the positions of the mobile bodies 20 dispersed in the travel path, and a GPS or TG is mounted on the mobile body 20 to move A method in which the body 20 detects the position of the mobile body 20 and collects information in the power management system 11 by on-vehicle / ground transmission is conceivable.

  The travel predicting means 27 predicts the future travel of the mobile body 20 based on the driving schedule for controlling the travel of the mobile body 20 input from the operation management system 12 and the position of the mobile body 20 detected by the mobile body position detection device 26. Predict. Based on the travel prediction result obtained by the travel prediction unit 27, the required power prediction unit 28 predicts the required power required to travel the mobile body 20 for a certain period.

FIG. 3 is an explanatory diagram of a diagram of the driving diagram. Based on this driving diagram, the travel prediction will be described. The horizontal axis in FIG. 3 is time, and the vertical axis is the position of the moving body 20. The moving body 20 advances in the right direction from the top or the bottom in FIG. The right side from the current time t1 is the prediction result. The traveling of the moving body 20 is predicted using the driving schedule, driving curve data, and the like over a prediction period T1 in which the delay of the moving body 20 is also considered. If there is no delay of the moving body 20, the streaks may be extended according to the driving schedule. If there is a delay, the line is moved or a streak is generated using the delay recovery time calculated in advance.
The required power prediction means 28 predicts the required power based on the travel prediction result obtained in this way. Usually, the operation of the moving body (train) 20 is defined by an operation curve. In the running curve, notching operations such as power running and running to accelerate by driving the motor, and brake running are planned, and these are described, and the required power can be calculated from this and the required power characteristics of the moving body 20.

  The power supply optimization calculation unit 29 optimally distributes the required power obtained by the required power prediction unit 28 among the plurality of ground power supply facilities 14. As a method of optimal power supply distribution, there is distribution by schedule operation and real-time operation. In the schedule operation, when there is no delay in the moving body 20, that is, when the moving body 20 can be operated along the operation schedule, each time zone is offline using the operation diagram, the operation curve, and the required power characteristic data in advance. The optimum operation method of each of the ground power supply facilities 14 is determined and incorporated in each ground power control device 19 or the mobile power control device 24 to execute control.

  On the other hand, in real-time operation, whether or not the mobile unit 20 collects power by calculating the power supply optimal distribution based on the required power prediction value to calculate the feed voltage target value of the ground power supply facility 14. Determine your judgment. The voltage, current, and power of the ground power supply equipment 14 are measured every moment by the electric quantity detection device 30, and the operation of each ground power supply equipment 14 is determined by comparing the measured values.

  Then, a command is output to the ground power control device 19 via the ground information transmission device 31 and a command is output to the mobile power control device 24 via the ground-on-vehicle information transmission device 25. When it is determined that the moving body 20 does not collect current, the feeding device 21 is disconnected by the feeding disconnect device 32. The state of whether or not current collection is performed by the moving body 20 is input to the moving body operation management device 33 that manages the operation of the moving body 20 via the moving body power control device 24.

  FIG. 4 is a configuration diagram of the moving body 20. The mobile body 20 is supplied with electric power from the feeder device 21 and also supplied with electric power from the power storage device 22, and is driven by the mobile electric power control device 24 based on the operation plan created by the operation plan creation means 34. Electric power is supplied to the device 35 to cause the moving body 20 to travel. In addition, the regenerative power from the reduction gear 36 is stored in the power storage device 22. The driving plan creation means 34 creates a driving plan based on the driving schedule 37, the route database 38, and the vehicle performance database 39.

  The remaining power of the power storage device 22 is detected by the remaining power detection means 40 and input to the mobile power control device 24. As a result, the mobile power control device 24 monitors the remaining power that can be supplied by the power storage device 22. In addition, a mobile body operation management device 33 is connected to the mobile body power control device 24, and the operation of the mobile body 20 is managed by the mobile body operation management device 33. The speed of the moving body 20 is detected by the speed recognizing means 41, and the position of the moving body 20 is detected by the position detecting means 42, and each is input to the moving body power control device 24 and used for traveling control of the moving body 20. . Furthermore, the mobile power control device 24 communicates with the ground-on-vehicle information transmission device 25 of the ground power supply facility 14 via the transmission means 43.

  Next, optimization calculation by the power supply optimization calculation means 29 will be described. Optimization calculation involves formulating a system for optimization and performing a calculation based on a so-called optimization technique. Here, a case will be described in which power supply sharing is set off-line and used as a database.

  FIG. 5 is an explanatory diagram of an example of a power distribution table stored in advance in the power supply optimization calculation unit 29. FIG. 5 shows three cases A, B, and C. As power distribution contents, there are "feed voltage setting value patterns for each ground power supply facility (substation)" and "whether or not to disconnect the moving body from the feed". Already assigned to cases A, B, and C. In case A, the pattern of the feeding voltage setting value of the ground power supply facility is P1, and when the feeding is not disconnected, the pattern of the feeding voltage setting value of the ground power supply facility is P2, and the feeding power When there is no disconnection, Case C shows a case where the pattern of the feed voltage setting value of the ground power supply facility is P3 and the feed is disconnected.

  FIG. 6 is an explanatory diagram for patterns P1, P2, and P3 of the feeding voltage setting value of the ground power supply facility. In FIG. 6, SS1 is a first ground power supply facility, SS2 is a second ground power supply facility, SS3 is a third ground power supply facility, and a feeding voltage setting value pattern P1 is a standard pattern. The first ground power supply facility SS1, the second ground power supply facility SS2, and the third ground power supply facility SS3 are all patterns when the supply voltage is standard. The feeding voltage set value pattern P2 is a case where the supply voltage of the first ground power supply facility SS1 and the second ground power supply facility SS2 is standard, and the supply voltage of the second ground power supply facility SS2 is increased. It is a pattern. The feeding voltage set value pattern P3 is a pattern when the supply voltages of the first ground power supply facility SS1, the second ground power supply facility SS2, and the third ground power supply facility SS3 are increased.

  In each terrestrial power supply facility SS1, SS2, SS3, for example, the tap of the transformer is switched to increase the supply voltage, or the supply power is increased using a thyristor rectifier or the like.

  The power supply distribution content calculated by the power supply optimization calculation means 29 (feed voltage setting value and presence / absence of power supply disconnection) is determined based on the ground power control device 19 or movement of each ground power supply facility at a fixed or event-driven control timing. It is transmitted to the body power control device 24. From the power management system 11 to the ground power control device 19 of each ground power supply facility, a wired LAN or wireless transmission may be used. Here, wireless transmission is considered as mobile communication to the mobile body 20. If the amount of information is small, transmission via a rail may be used.

  The ground power supply facility 14 receives the control command (feed voltage set value patterns P1, P2, P3) transmitted from the power management system 11 and changes the feed voltage set value. At this time, it is possible to monitor the state of the voltage, current, power, failure, etc. of the own ground power supply facility and other ground power supply facilities locally, and change the central command value.

  The mobile unit 20 receives the control command (whether or not the power is disconnected) transmitted from the power management system 11, and controls whether to disconnect or continue the power supply. At this time, the state monitoring result of the power storage device 22 in the moving body 20 can be taken into consideration.

  Further, the mobile unit 20 performs state monitoring such as detection of a remaining amount of stored power in the power storage device 22 and a failure, transmits information to the mobile operation management unit 33, and displays a monitoring state and performs audio broadcasting. In addition, information is transmitted to the power supply optimization calculation unit 29 via the transmission unit 43. In the power supply optimization calculation in the power supply optimization calculation means 29, state monitoring information such as the remaining amount of power and failure of the power storage device 22 of the mobile body 20 is used. Furthermore, these pieces of information can be accumulated as maintenance information and used for maintenance management and failure analysis.

  In this way, by managing the operation management and power management in an integrated manner, and by integrating / appropriately sharing the transmission means, it is possible to improve the efficiency and cost saving of the entire railway system. Management can be performed.

  Here, in the regional traffic where the route length is not long and the transportation capacity is not large, the ground power supply facility (substation) is usually one place, and the power management system 11 is installed in the ground power supply facility 14. In such a case, the voltage control of the ground power supply facility 14 and the power disconnection command to the moving body 20 are performed as follows.

  First, the position of the entire moving body 20 is detected by the moving body position detecting device 26, the distribution of existing lines of the entire moving body 20 is grasped, and the distribution of feeding voltage is simulated using a simulation or the like. Is estimated. Then, the mobile body 20 traveling in the section where the feeding voltage is lowered is instructed to travel using the power stored in the power storage device 22 without collecting current. In this case, as the ground-on-vehicle information transmission device 14, a device installed by security control means or operation management means may be used. Moreover, it is also possible to carry out in a human system using train radio.

  Further, when traveling the mobile body 20, the power storage device 22 may be installed in the ground power supply facility 14, and power may be supplied to the mobile body 20 from the power storage device 22 installed in the ground power supply facility 14. By doing in this way, operation control is also possible for the moving body 20 that does not include the power storage device 22. In this case, the power supply optimization calculation unit 29 performs the optimization calculation in consideration of the power that can be supplied from the power storage device 22 installed in the ground power supply facility 14. Thereby, a compact overall design corresponding to the route size can be performed.

  Next, in a railway system or the like, the transportation load can be estimated in advance by an operation schedule. Therefore, a steady or chronic power load balance can be predicted. In such a case, traveling control of the moving body 20 is performed as follows.

  For example, in a system configuration where the ground power supply facility (substation) is in the center, etc., and the mobile unit (vehicle) 20 is congested at the terminal station at the end of the route and the feeder voltage is expected to drop, The vehicle is divided into a plurality of sections, and travels with only the electric power stored in the power storage device 22 of the moving body 20 for each section for each time zone.

  At this time, since there are cases in which the operation schedule is dense depending on the time zone, a schedule operation is performed in which the control is divided according to the time zone. That is, when the mobile body 20 travels in a predetermined travel section in a predetermined time zone, the mobile body 20 is traveled by the electric power stored in the power storage device 22 in the mobile body 20. In the initial system design, it is also possible to consider running from the beginning using the stored energy at the end portion and supplying power to the power storage device 22 at the end station.

  In this case, since the moving body 20 needs to recognize the time zone and its own position, a clock means and a position detection means are provided. That is, each moving body 20 is provided with a position recognition unit 42, and the position recognition unit 42 detects a traveling position and identifies a traveling section. Further, instead of detecting the position or section by the mobile body 20, the position or section may be detected on the ground side and transmitted to each mobile body 20.

  As a simpler method, the point passing information of the moving body 20 may be used as a trigger for power control instead of detecting the travel section. In addition, it is not necessary to mount the power storage device 22 on all the mobile bodies 20, and a mixed operation of a vehicle on which the power storage device 22 is mounted and a mobile body 20 that is not mounted is also possible. For example, power is supplied from a power storage device provided in a ground power supply facility (substation) to the moving body 20 that does not include the power storage device 22. Thereby, there exists an advantage which can perform easily the transportation capacity expansion of an existing route, and the laying of a new route by a simple method.

  In this way, to save energy, electric power, which is a driving source for train travel, is stored in the power storage device 22 of the moving body 20, and without power feeding by an overhead wire, for example, a railway vehicle uses a power source like an automobile. It is possible to run freely in a shape.

  At this time, it is not necessary to mount the power storage device 22 on all the vehicles traveling on the target travel route, and the present invention can also be applied to the case where there are train lines in some sections and no train lines in the remaining sections. In a section where there is no train line, a power supply point for supplying power to the power storage device 22 of the mobile body 20 is installed, and power is supplied from the power supply point to the power storage device 22 of the mobile body 20.

  According to the embodiment of the present invention, ground power is supplied to a mobile body 20 traveling on a route, such as a railway system in which a power storage device is mounted on a part of the mobile bodies 20, a new traffic system, or an automatic driving bus system. It is possible to optimize the sharing of the power supplied from the facility (substation), to suppress the total power consumption, and to realize an operation with excellent timeliness.

The block block diagram of the mobile body power supply management control apparatus concerning embodiment of this invention. The lineblock diagram of the power management system in an embodiment of the invention. Explanatory drawing of the diagram of the driving | running diagram in embodiment of this invention. The block diagram of the moving body in embodiment of this invention. Explanatory drawing of an example of the power distribution table memorize | stored beforehand by the electric power supply optimization calculation means in embodiment of this invention. Explanatory drawing of the pattern of the feeding voltage setting value of the ground power supply installation in embodiment of this invention. Explanatory drawing of a train railway system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Home, 2 ... Vehicle, 3 ... Traveling route, 4 ... Substation, 11 ... Power management system, 12 ... Operation management system, 13 ... LAN, 14 ... Ground power supply equipment, 15 ... LAN, 16 ... AC bus, DESCRIPTION OF SYMBOLS 17 ... DC bus line, 18 ... Converter, 19 ... Ground power control device, 20 ... Mobile body, 21 ... Feeding device, 22 ... Power storage device, 23 ... Traveling path, 24 ... Mobile power control device, 25 ... Ground- On-vehicle information transmission device, 26 ... moving body position detection device, 27 ... travel prediction means, 28 ... required power prediction means, 29 ... power supply optimization calculation means, 30 ... electricity quantity detection device, 31 ... ground information transmission device, 32 ... feeder disconnection device, 33 ... moving body operation management device, 34 ... operation plan creation means, 35 ... drive device, 36 ... deceleration device, 37 ... driving diagram, 38 ... route database, 39 ... vehicle property database, 40 ... remaining power Detecting means, 41 ... speed recognition means 42 ... position recognizer, 43 ... transmission means

Claims (10)

There is a power feeder that supplies power to a mobile unit using ground power supply facilities. A part of the mobile unit has a power storage device, and the mobile unit uses the power collected by the mobile unit and the built-in power in the power storage device. In a mobile power supply management control device for managing and controlling power supplied to a mobile moving on the road,
A power management system for predicting the required power for moving the vehicle based on the driving schedule that controls the operation of the moving object and the position of the moving object, and optimally allocating the expected required power among the ground power supply facilities; ,
A ground power control device that controls power supplied from a ground power supply facility to the mobile unit based on a power supply instruction distributed by the power management system;
A mobile power control apparatus for controlling power supplied to the mobile based on a power supply instruction distributed by the power management system;
A mobile power supply management control device comprising: The power management system includes:
A required power predicting means for predicting a future travel of the mobile body based on a driving schedule for controlling the travel of the mobile body and a position of the mobile body and predicting a required power for the mobile body based on the travel prediction result;
Power supply optimization calculating means for optimally allocating the required power obtained by the required power prediction means among a plurality of ground power supply facilities;
A ground information transmission device that transmits a power supply instruction to the ground power supply facility to a ground power control device;
A ground-on-vehicle information transmission device for transmitting a power supply instruction to the mobile body to the mobile power control device;
The mobile power supply management control device according to claim 1, further comprising: The power management system includes:
A required power predicting means for predicting a future travel of the mobile body based on a driving schedule for controlling the travel of the mobile body and a position of the mobile body and predicting a required power for the mobile body based on the travel prediction result;
An electric quantity detection means for detecting power, voltage, and current at one or more points of the ground power supply facility;
For optimally distributing the required power obtained by the required power prediction means based on the detection value of the electric quantity detection means and the remaining power of the power storage device of the mobile body among a plurality of ground power supply facilities Power supply optimization calculation means;
A ground information transmission device that transmits a power supply instruction to the ground power supply facility to a ground power control device;
A ground-on-vehicle information transmission device for transmitting an instruction to the mobile power control device whether or not to remove the feeding power in the mobile body;
A mobile power supply management control device comprising:   The mobile unit according to claim 2 or 3, wherein the required power predicting means predicts the required power of the mobile unit by simulating a feeding voltage of a ground power supply facility based on the position of the mobile unit. Power supply management control device.   The power supply optimization calculation means is characterized in that the optimization calculation is performed off-line based on the operation schedule of the mobile body, and when the mobile body can be operated along the operation schedule, the schedule operation is performed based on the result. The mobile power supply management control device according to claim 2 or claim 3.   6. The mobile power supply management control device according to claim 5, wherein when the mobile body cannot perform the scheduled operation along the operation schedule, the mobile body is operated based on real-time information in accordance with the driving state of the mobile body.   The power storage device is installed in the ground power supply facility, and the power supply optimization calculation means performs optimization calculation in consideration of power that can be supplied from the power storage device installed in the ground power supply facility. The mobile power supply management control device according to claim 2 or claim 3.   The power optimization calculation means predetermines a plurality of types of power distribution between the ground power supply equipment and the power storage device provided in the mobile body, and provides real-time information on the required power prediction information and the distribution of the feeding voltage or feeding voltage. The mobile power supply management control apparatus according to claim 6, wherein one of the plurality of types of power distribution is used and selected and executed.   The mobile body power control device causes the mobile body to travel with electric power stored in a power storage device in the mobile body when the mobile body travels in a predetermined travel section in a predetermined time zone. The mobile power supply management control device according to claim 1. 10. The vehicle according to claim 9, wherein instead of the predetermined travel section, when the mobile body passes a predetermined point passing point, the mobile body is caused to travel with the electric power stored in the power storage device in the mobile body. Mobile power supply management control device.

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