JPS6018572B2 - Power management method - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a power management system for controlling multiple substations according to fluctuations in power demand, and particularly for supplying power to moving loads such as trains running on railway tracks. This paper relates to a power management method for controlling multiple substations.

Conventionally, in this type of power management, the substation operation schedule for the day has been divided into several stages, such as starting operation in the early morning hours, operation/stopping during the morning and evening rush hours, and stopping operations all night. A system was adopted in which the system was memorized as a schedule, and control was performed according to a schedule at each time.

The above-mentioned follow-up system has the inconvenience that the power dispatcher must respond to temporary load changes by inputting changes to the schedule each time.

An object of the present invention is to provide a power management method that eliminates the above-mentioned inconveniences of the conventional technology and allows the power management side to automatically respond to power load fluctuations.

A feature of the present invention is that, in order to achieve the above object, load information that captures the movement information of the moving loads that are the source of electricity demand is input from the scheduled load for each time period and from the operation dispatcher via the operation panel. A load entrainment management unit is provided that is equipped with a load operation control device that controls load movement in association with load change requests, and load entrainment information for each time period is obtained from this load entrainment control device and handled accordingly. The substation schedule determination supervisor determines the substation operation schedule to be used, and the determined substation operation schedule is combined with the substation operation schedule stored in advance in the power management department to determine the number of substations in operation. The method is to provide a power management unit equipped with a substation operation control device that sends control commands to each substation via a remote monitoring system and an intuitive station.

An embodiment of the present invention will be described below with reference to FIG. 1, taking as an example power management in which a train running on a railway track is the power demand source.

In FIG. 1, 1 is a load carrying management section, and 2 is a power management section. 3 is generally a load entrainment control device, but in the case of this embodiment, it is a train entrainment control device, and specifically, it is mainly composed of a digital computer, its peripheral equipment, and an input/output control device.

Reference numeral 4 denotes a storage device that generally stores the scheduled load amount for each time period, and in the embodiment, a train diagram storage device, which is composed of, for example, a magnetic drum.

Reference numeral 5 denotes a control panel, which serves as man-machine communication between the train dispatcher 5' and the computer system, and accepts inputs such as changing train schedules, and is composed of, for example, a group of push buttons and a group of lamps.

These train entrainment control devices 3 and train schedule storage devices 4
and an operation panel 5 are provided in the load entrainment management section 5 to monitor the movement of the train and control the entrainment. On the other hand, the power management unit 2 that manages the operation of multiple substations is comprised of the following equipment.

That is, it consists of a train entrainment storage device 6, a substation schedule determination device 7, a substation schedule storage device 8, a substation operation control device 9, and a clock device 10. The train entrainment storage device 6 stores the number of trains being operated and the time period.
For example, it consists of a magnetic core. The substation schedule determining device 7 determines the operation schedule of the corresponding substation based on the number of trains for each time period set in the train entrainment storage device 6 from the load entrainment management unit 1. configured. The substation schedule storage device 8 is
In the case of a DC substation, the number of operating rectifiers, and in the case of an AC substation, the number of operating lightning transformers is stored for each start/stop time, so it is composed of, for example, a magnetic core. The substation operation control device 9 generates a control output while correcting the schedule time and contents set in the substation schedule storage device 8 based on the determination result of the substation schedule determination device 7. Consists of input/output control equipment. Here, the substation schedule determination device 7 and the substation operation control device 9 can be configured by the same digital computer.
11 is the central layer of the CTC (train central control unit), 12 is the CTC station equipment, 13 is the remote monitoring device master station, 14 is the substation, 15 is the train, 16 is the track on which the train runs, 17 is to the train This is a power transmission line that supplies power.

Each device in the embodiment shown in FIG. 1 operates as follows.

The load entrainment management unit 1 inputs train movement information, signal information, etc. into the train entrainment control device 3 via the CTC station equipment 12 and the CTC central device 11, grasps the train position, and stores the train schedule. The train schedule stored in the device 4 is associated with the train information grasped to control the train movement. This train entrainment information is set in the train entrainment storage device 6 as the number of trains passing at each time in the format shown in FIG. If there is a change in the train accompanying timetable for the basic timetable stored in the train timetable storage device 4 due to the running of trains due to trial runs, the operation of additional trains, etc., that information is input by the train dispatcher through the operation panel 5. Based on the information, the entrainment management section 1 rewrites the contents of the train entrainment storage device 6. Next, the power management unit 2 operates as follows.

Since the substation schedule determination device 7 can determine the amount of load required for train transportation from the number of trains specified by the transportation management unit 1, the substation schedule determination device 7 sets the schedule and the time at which the number of trains changes in the substation schedule storage device. The details will be explained with reference to the block configuration diagram in FIG. The number of trains comparison circuit 18 retrieves the number of trains from the train entrainment storage device 6 and compares the number of trains stored in the load range storage circuit 21 with the maximum number of trains stored in the load range storage circuit 21.
- Search and determine which load range of the number of trains and the maximum number of trains falls within, and pass the position of the determined range to the schedule time comparison circuit 19. The schedule time comparison circuit 19 uses the time information from the train entrainment storage device 6 and the number of trains comparison circuit 1.
The range information from 8 and the data in the order corresponding to the number of trains in the schedule storage circuit 22 that stores the operation schedule of the substation are received and synthesized, and the data is sent to the schedule time writing circuit. Pass it to 20. This schedule time writing circuit writes data into the substation schedule storage device 8 in the order in which it is passed, and if there is a change in comparison with the previous data, it activates the substation operation control device 9. The substation operation control device 9 includes a substation schedule storage device 8
The scheduled time is compared with the time taken in from the clock pupil 10, and control command signals are sent to each substation 14 via the remote monitoring device master station 13 according to the schedule at that time.

This allows the power management unit 2 to automatically change the substation schedule based on the train entrainment control timetable data. As described above, according to the present invention, in a power management system that controls multiple substations, the power management section automatically extracts information on the controlled objects that are power demand sources and automatically controls the substations to be operated based on the information. be able to decide.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram for explaining an embodiment of the present invention, FIG. 2 is a diagram showing the internal configuration of a train entrainment storage device, and FIG. 3 is a block configuration diagram for explaining the operation of a substation schedule determination device. It is. 1...Load entrainment management unit, 2...Power management unit, 3...Train entrainment control device, 4...
・Train schedule storage device, 5...operation panel, 6...
...Train entrainment storage device, 7... Substation schedule determination device, 6... Substation schedule storage device, 9... Substation operation control device, 1 0... Clock device, 1 1...CTC Chuohishinao, 12...CTC
Station equipment, 13... Remote monitoring device master station, 14...
...Substation, 15...Train, 16...
Track, 17...Power line, 18...Number of trains comparison circuit, 19...Schedule time comparison circuit, 20...Schedule time writing circuit, 21
...Load range memory circuit, 22...Schedule memory circuit. Figure 1 Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. In power management that controls multiple substations, the movement information of the control target is grasped by controlling the moving load that is the power demand source, and the grasped load information is used to calculate the planned load amount for each time period. and a load operation control device that controls load movement in association with the load change request input from the operation dispatcher via the operation panel, and the load operation information for each time period from this load operation control device is provided. a substation schedule determination device that determines a substation operation schedule corresponding to the determined substation operation schedule; and a substation operation schedule that combines the determined substation operation schedule with a substation operation schedule stored in advance in the power management unit. By being equipped with a substation operation control device that determines the number of units and sends control commands to each substation via the remote monitoring device master station, it is possible to automatically change the substation schedule on the power management side. A power management method featuring: 2. The moving load is a train running on a railway track,
2. The power management system according to claim 1, wherein the scheduled load amount for each time period is a train schedule, and the load operation control device is a train operation control device that controls train running.