JPS59175305A - Vehicle base power supplying method in ground control system of electric rolling stock - Google Patents

Abstract

PURPOSE:To obtain an economically advantageous vehicle base power supplying method by supplying a constant voltage lower than the maximum voltage in performance of an electric rolling stock in a current capacity necessary for moving or replacing electric rolling stock group capable of containing on a slave route from a substation to the slave route. CONSTITUTION:When an electric rolling stock 6A stops at a station C and a substation switching command is transmitted by a driver from a car antenna 29, a trolley wire switch 27P is opened, and trolley wire switches 27N, 27M are closed. When the driver then operates to run the rolling stock, power from the substation C is controlled to drive the electric railcar 6A. If a command for branching to a slave route is dispatched when the rolling stock 6A stops at the station B, the switch 27M is opened and the switch 27L is closed. Power of low voltage is supplied from a substation X to the slave route, and when the driver operates a mester controller, the rolling stock runs on the slave route.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a ground control system for electric vehicles, particularly for railway depots, siding lines, siding lines, etc. (hereinafter referred to as main running routes) other than commercial lines (hereinafter referred to as main running routes). The present invention relates to a method of supplying power to an electric vehicle on a secondary running route (referred to as a secondary running route).

[Technical background of the invention]

First, the ground control system that is the premise of the present invention will be explained. FIG. 1 shows a conceptual diagram of a conventional electric vehicle control system. In the figure, a constant voltage direct current or alternating current is supplied from a substation 1 to an overhead wire 2. electric car 6
This power is taken into the electric car 6 through a current collector or ground wheels 3,7. The electric car 6 includes a main motor 5,
A control device 4 is provided which controls the speed of the vehicle by controlling the voltage and current supplied to the main motor 5.

Instructions from the driver of the electric vehicle 6 are given to this control device 4,
Controls the speed of the electric car 6. In addition, there are various electrical devices such as auxiliary machines, but they are not shown in this example.

Such a system has the advantage that a plurality of electric cars can be installed in one substation section, and that the substation can be simple because it only needs to constantly supply power at a constant voltage. However, the control device 4 on the electric car 6 that controls the main motor 5
must be installed. Since this control device 4 requires sophisticated equipment to control electric power, it is large in volume and weight. - To give an example, the control device 4 and its related equipment account for 10 to 20% of the empty weight of a normal electric car (motorized car) or mole rail. This means that a large amount of dead load is constantly being transported, and this is a significant loss in terms of power consumption during running. On the other hand, in cases such as Morrail, the load on one tire is very strictly restricted, so in order to avoid falling under this restriction when the car is full, it is necessary to intentionally increase the number of seats to block the floor space of the car. This strict load limit was met by installing an equipment room inside the cabin and making it impossible for passengers to board the train when it was full.

However, in terms of equipment mounting capacity, in the case of a mole rail, especially in the method of holding the track under the floor (straddle type), the effective mounting volume is taken up by the track, so the effective mounting volume under the floor for loading this control device 4 has to be reduced. In order to achieve this, there may be cases where the vehicle width has to be widened.

This is a big problem when using this vehicle on narrow roads such as 18R++ parallel roads, as is the case with recent urban transportation, as it does not meet the width requirements for the vehicle body, double track, and space for fire fighting. It's coming.

Furthermore, in terms of construction costs, modern transportation facilities are often built on roads, and in that case they are elevated. In this case, it is better for the vehicles traveling on it to be lighter in order to reduce the amount of elevated structure construction, which accounts for nearly 60% of this elevated system. In addition, in cases such as the straddle-type mole rail mentioned above, if you make a car with a narrower interior and a longer car length, you can widen the spacing between the live load loading points on the girders.
As a result, the moment applied to the girder can be reduced, making it possible to lengthen the girder span and reduce the overall number of girder supports. These girder supports are installed in the foundation according to the strength of the ground, and reducing the number of these supports greatly contributes to reducing the construction cost of the track, especially when constructing a feed line on weak ground.

Next, when considering the operational costs of maintaining and operating such transportation systems, on-board equipment is constantly exposed to harsh environments such as vehicle vibrations and wind and rain, so it costs less than equipment on the ground. Not only does maintenance cost a lot of money, but the vehicle is out of service during the necessary maintenance period, which reduces its efficiency and requires additional maintenance periods for spare vehicles in consideration of the year of vehicle failure. A spare car will be needed.

The ground control system improves the problems of the conventional control system mentioned above, and can handle the amount of construction and maintenance that will be required in the future! This is a vehicle control system that is effective in constructing an inexpensive transportation system. FIG. 2 shows a conceptual diagram of this ground control system. This presents a circuit corresponding to the basic power feeding basic circuit shown in FIG.

The overhead wires 23X, 23Y and the information transmission line 3o, which are fixedly placed on the ground, are connected to the insulating parts 27X, 27Y and 31.
is divided into sections, and the overhead wires 23X and 23Y are
and a substation 21 corresponding to each section of the information transmission line 3o.
are provided respectively.

In this case, when one of the overhead wires, for example 23Y, is used at ground potential, the insulating portion 27Y can be omitted. In addition, on the electric car 6A, there is a current collector or ground wheel 3 with 7
Main motor and equipment necessary for its protection and circuit switching25
The traction motor speed control device is installed at ground substation 21.
It is located inside. In addition to these main circuits, an auxiliary circuit is required, but this is carried out by separately arranging an overhead wire or the like to collect current, and is not shown in this example. On the other hand, commands from the driver riding the electric vehicle 6A are sent from the main controller to the information transmission device 28. On-board antenna 29. The information is transmitted to the substation 21 through the information transmission line 30.

In the substation 21, the power supplied to the electric vehicle 6A, that is, the voltage and current frequency, is controlled in accordance with this command by a speed control device provided there, and the power is supplied to the overhead wire for control.

In such a ground control system, even though the speed control section on the vehicle is removed, it is possible to perform exactly the same operation as when the speed controller is placed on the vehicle.
It is possible to reduce the weight of the vehicle and obtain many benefits associated with weight reduction.

Additionally, since the speed control unit is placed on the ground, there is no need to consider vehicle vibration or size or weight restrictions for devices mounted on the vehicle, making the system extremely reliable. I can do it.

The above is an overview of the seven ground control systems that are the premise of the present invention. This is a method of power supply to electric vehicles on the main traveling route, and is different from the conventional power supply method to electric vehicles on the secondary route. There is no particular difference between the above-mentioned main running route and secondary running route, and substations are provided to supply power to electric vehicles using the same concept and method. Its contents have already been explained based on FIG.

[Problems with background technology]

In the above-mentioned ground control system for electric cars, the overhead wires are divided into certain sections and a substation is installed for each section, and one substation is used for each section, that is, one train, to control the speed of electric cars from the ground. This is done by controlling the substations in the area, but this power supply method is used to control secondary driving routes, such as depots and siding lines.

In service lines, etc., many sections are required to supply power, and therefore the number of substations increases, which goes against one of the original purposes of ground control systems, which is to improve economic efficiency (lower prices). There is a side.

[Purpose of the invention]

The present invention was made in view of the above-mentioned circumstances, and its purpose is to make above-ground substations low-power substations, reduce the number of them, and easily supply power to the following travel routes. An object of the present invention is to provide an economically advantageous method of feeding power to a vehicle depot in a ground control system for electric vehicles.

[Summary of the invention]

In order to achieve the above object, the present invention provides control information for an electric car running on a track consisting of a main running path and a secondary running path branching from the main running path, using control information from a driver's cab on the electric car. is transmitted to a substation on the ground via an information transmission device, and a speed control device installed at the substation controls the power of the overhead line leading to the substation based on the control information to control the speed. In the ground control system for electric vehicles, when supplying power to the electric vehicles on the above-mentioned secondary running route, a ground control system that has the current capacity necessary for moving or replacing a group of electric vehicles that can be accommodated on the corresponding running route, and The present invention is characterized in that a constant voltage lower than the maximum voltage for electric vehicle performance is supplied from the substation.

[Embodiments of the invention]

An embodiment of the present invention shown in the drawings will be described below.

The power supply method on the main running route is the same as the second method already mentioned.
Since this method is similar to the method shown in the figure, its explanation will be omitted here.

FIG. 3 shows a conceptual diagram of a power supply method on a traveling route according to the present invention, and parts having the same functions as those in FIG. 2 are denoted by the same reference numerals.

In the figure, a group of secondary running roads installed adjacent to each other are collectively supplied with power by one or a limited number of substations.1. ? JA is electrostatic deposition, 23XA and 23Y
A is an overhead wire, and the figure shows that power is supplied to three subordinate running route segments at once, and a plurality of electric cars 6A are simultaneously supplied with power from the same substation 21k. Further, the current collector JA, the main motor circuit 25 of the electric car, and the current collector 7A are similar to those shown in FIG.

FIG. 4 shows the internal configuration of the main motor circuit 25. In the figure, breaker 522 circuit breaker 53. Series resistor 54. Resistance short circuit contactors 55, 56. Piezoelectric motor field57. Main motor armature 58. It consists of a grounding switch 59.

Although only one group of traction motor circuits 25 is shown in FIG. 4, it is also shown that a plurality of groups of traction motor circuits are connected.

FIG. 5 shows an example of a track configuration at a switching point for switching the power supply between the main running track and the secondary running track, and the figure shows a straddle-type mole rail as a representative.

In the figure, 201 is a track of the main running route, 202 is a branch track (branch girder) that branches the main running route and the secondary running route, 203 is a turnout, and 6A is an electric car.

FIG. 6 is a single line diagram for explaining a method of feeding power to the overhead wire and a method of switching the power in the track configuration of FIG. 5. FIG. 6th
In the figure, 181,182°183.184,185
181X is an overhead line for supplying driving power to the electric cars divided into the main running route, and 181X is an overhead line for the secondary running route. 120°121.122,123,124,125,
126 is a ground antenna that receives control information sent from the electric car 6A via the on-board antenna 29 and sends it to the substation on the ground. 27, 27B.

27C and 27D are overhead wires 181 to 185 of the main running route.
27L with insulated air section.

27M, 27N, 27P are this air section,? 7A
This is an overhead line switching device for connecting or disconnecting 27D. 127 is an air section at the switching point between the main running route and the secondary running route, and 127L is an overhead wire switching device that connects or opens the connection therebetween. Further, 101 is an overhead wire switching device 27L.

This is an overhead line switching interlock device that interlocks so that only one of 27M and 127L is closed.
Reference numeral 102 denotes an overhead line switching interlock device that interlocks so that only one of the overhead line switching devices 27N and 27P is closed.

Furthermore, 6A represents an electric car, 3A is its current collector, 2
5 is the main motor and equipment necessary for its protection and circuit switching, 28
2 is an information transmission device, and 29 is an on-vehicle antenna.

Furthermore, 133 is a ground receiver for obtaining control information from the electric car 6A from the section of B station named in FIG. 6 to C substation, and 134 is B station.

A ground receiver 135 is used to obtain control information for the electric car 6A from the C station section. 13
0 is a power conversion control device that supplies power to the overhead wires, 131 is a ground control device that controls running of the electric vehicle 6A, and 132 is an overhead wire switching control device that instructs opening and closing of the overhead wire switching devices 27L to 127L.

On the other hand, at the substation (B in the figure) located at the switching point between the main traveling route and the secondary traveling route, there is a ground antenna 1 for the secondary traveling route.
Secondary roadway ground receiver 1 receiving information from 19X
34X will be installed in excess of the C substation. Also,
The ground receiver 133 at substation B is connected to the ground antenna 122 at station A on the main route. Furthermore, 119X
130X is a ground antenna for the secondary roadway, and 130X is a power conversion device of the X substation installed as a substation for the secondary roadway.

In addition, the substation (A
, D, E, F,...) are all the same as the configuration of substation C.

Next, this effect will be explained. First, in the ground control system for electric cars according to the present invention, substations correspond to electric cars on a one-to-one basis, and most of the speed control of the electric cars is performed at the ground substation. Therefore, the output voltage of the substation is a variable voltage. A substation with a variable voltage output is applied to the main road, and a substation with a low constant output voltage is applied to the secondary road. The output voltage of the substation is
The maximum voltage for electric car performance is much lower than the voltage that allows electric cars to start up when empty and run at low speeds (
For example, set it to about 10 cm, which is the maximum voltage of an electric car.

The 21 people in Figure 3 indicate this substation, and the number of substations was increased by supplying power to the overhead wires of each track in the depot at once, and also to the adjacent siding lines and siding lines. Try to reduce it as much as possible. The power supply light in the figure shows three lines, indicating that there are a plurality of electric cars 6A on each line, and each electric car 6A is driven individually by its respective driver, Move according to the purpose of exchanging, detaining, evacuation, etc. In the electric car 6A, which receives low constant voltage from the substation to the overhead line, the driver operates the main controller, so that the substation takes over the speed control on the main route, and the electric car 6A takes over the main controller. It is sequentially accelerated to a speed according to the nozzle angle of the controller. On the other hand, in the secondary travel path to which the present invention is assigned, there are at most three control steps depending on the steering wheel angle of the main controller, for example, a step in which a low resistance is connected in series with the main motor;
A step is provided in which half of the resistance is short-circuited, and a step is provided where the overhead line voltage is directly applied to the main motor.
Operate the master controller while monitoring the speed of the main controller. In Fig. 4, when the driver operates the handle of the master controller by one step, the breaker 52 and the circuit breaker 53 are closed, and the main motor field and electric motor are closed. A starting current flows through the terminals 57 and 58 through the series resistor 54, and the electric car 6A is started.

Next, when the handle is operated for two steps, the resistance shorting contactor 55 closes and the series resistor 54 is shorted by about half, increasing the main motor current and further accelerating the electric vehicle. Further, when the handle is moved three steps, the resistance short circuit contactor 56 closes and the main motor field is turned on, and the armature 57 and 58 are connected to the overhead wire 2 JXA.

It is directly connected to 23YA and is accelerated to a speed commensurate with the overhead line voltage. In this way, the vehicle can travel on the secondary travel route at a low speed set to the minimum necessary speed by a simple operation by the driver.

In this case, how much the overhead wire voltage should be set, whether or not to provide the series resistor 54, and if so, how many resistance values should be set and how many steps of resistance shorting contactors should be provided, etc. It is determined based on the size of the road, the number of electric cars 6A, the running speed specifications, etc. Further, the substation 21 does not require any special equipment, and is not much different from equipment installed in substations in the prior art, except for a transformer.

There are no rectifiers (in the case of DC), circuit breakers, and other major equipment.There is nothing special to explain, except that the output voltage is a constant voltage that is far lower than the maximum voltage for electric vehicle performance. This is a major difference from conventional substations.

Next, a method of switching the power supply at the switching point between the main running route and the secondary running route will be explained using FIG. 6. In the figure, the electric car 6A is shown just before entering the C station section and stopping. At this point, the overhead line switch 27P is closed, 27N, 27M, 271. ．． 127L are all open, and power is supplied to the overhead line 184 through the D substation → overhead line 185 → overhead line switch 27P → overhead line 184. Now, the electric car 6A is stopped by the driver's operation, and the driver sends a substation switching command to the on-board antenna 29.
．． Ground receiver 1 of substation D via ground antenna 125
33, the overhead line switching control device 132 of substation D
A switching command is issued to the overhead line switching device 27P, and the overhead line switching device 27P is opened. Similarly, a substation switching command is input from the ground antenna 124 to the C substation, and a closing command is issued from the C substation's overhead line switching control device 132 to the overhead line switching device 27N, thereby closing the overhead line switching devices 27N and 27M. In this case, the overhead line switching interlock device 102 interlocks so that the overhead line switching devices 27N and 27P are not closed at the same time.

Next, when the driver performs a running operation, the electric car 6A travels to the B station section under the control of the C substation, and stops at B station when the driver performs a stop operation3.Then, the driver issues a substation switching signal. When driving on the normal main road, C
As in the case of a station, the overhead line switch 27M is open and the overhead line switch 27L is closed. However, if the signal control center issues a command to the electric car 6A to branch to the secondary route, the overhead line switch 27M is opened.
is open, p27L continues to be open, and 127L is closed. In this case, the overhead line switching control device 132 of the B substation issues a close command to the overhead line switching device 127L based on the route command from the signal control center and the control signal from the electric car from the ground antenna at B station. In addition, the overhead wire switching interlock device 1
01 confirms that the electric car 6A will travel to the following road side under the condition of the course command and turnout switch switch signal, and then sets the interlock of the overhead wire switches 27M, 27L open, and 127L closed. Take.

In this way, the main traveling route is switched to the secondary traveling route, and when the electric vehicle 6A enters the secondary traveling route and reaches the ground antenna 119X portion of the secondary traveling route,
The overhead line switching control device 132 of the B substation is the overhead line switching device 127.
A command to open L is issued and this opens the circuit. In this way,
The electric vehicle 6A can enter the secondary traveling path from the main traveling path, collects current from the overhead wire 181X of the narrow traveling path, and travels to the destination location based on the driver's operation. Note that when entering the main running route from the secondary running route, the power supply to the overhead wires is switched in a completely reverse order to the above-described order.

As mentioned above, in the conventional ground control system for electric vehicles, a substation is required for each power supply section divided into specific sections, and in particular, many power supply sections are required on secondary running routes. Since then, the number of substations has increased, and the economic effect of installing electric vehicle speed control devices as ground control devices in substations may be diminished. In this respect, by applying the present power feeding method, there is no need to add new functions to the control device on the electric vehicle 6A, or the series resistor 54. Adding only small-scale functions such as resistance short-circuit contactors 55 and 56, supplying a low constant voltage from the ground substation, making the substation a low-power substation, and reducing the number of substations. This makes it possible to economically supply power on the secondary travel route.

In addition, in the above explanation, the case where the overhead line voltage was DC was described, but
Even in the case of alternating current, it is exactly the same in that the power supply method uses a low constant voltage on the following running route.

Furthermore, the series resistor 54 and resistance shorting contactors 55 and 56 of the traction motor circuit shown in FIG. This can be omitted if possible.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to easily supply power to the running road by converting the ground substation into a low-power substation and reducing the number of substations, which is extremely economically advantageous. A method for supplying power to a vehicle depot in a ground control system for electric vehicles can be provided.

[Brief explanation of the drawing]

Fig. 1 is a conceptual diagram showing a conventional electric vehicle control system, Fig. 2 is a conceptual diagram showing a ground control system, Fig. 3 is a conceptual diagram showing an embodiment of the present invention, and Fig. 4 is a conceptual diagram showing an embodiment of the present invention. Figure 5 is a diagram showing an example of the track configuration of the power supply switching section between the main running route and the secondary running route, and Figure 6 is a diagram showing the details of the main motor circuit in the track configuration of Figure 5. It shows a single line diagram for explaining the power supply method and its switching method. 1.21,21A...Substation, 2,23X. 2 JY, 23Xk, 23YA... overhead wire, 3,7,
3A. 7A... Current collector, 4... On-board control device, 5... Main motor, 6, 6A... Electric vehicle, 27X, 27Y, 31
... Insulation section, 25 ... Main motor circuit, 28 ... Information transmission device, 29 ... On-board antenna, 30 ... Information transmission path, 52 ... Breaker, 53 ... Circuit switch,
54... Series resistor, 55.56... Resistance shorting contactor, 57... Main motor field, 58... Main motor armature, 59... Earthing switch, 201. Running path, 202・
... Branch road, 203... Turnout, 27, 27B. 27C, 27D, 127.1...Air section, 2
7L, 27M, 27N, 27P, 127L... Catenary line switching device, 101.102... Catenary line switching ink-lock device, 181, 182, 183, 184° 185... Catenary line of main running route, 181X... overhead wires of secondary running routes;
120,121,122゜123.124,125,1
26...Ground antenna, 119X...Subordinate running road ground antenna, 130...Power conversion control device, 13
DESCRIPTION OF SYMBOLS 1...Ground control device, 130X...Subordinate running road power conversion device, 132...Overhead line switching control device, 133
, 134° 135... ground receiver, 134X... ground receiver for secondary traveling route, 130X... power converter for secondary traveling route. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (3)

[Claims] (1) An electric car running on a track consisting of a main running path and a secondary running path branching off from the main running path is connected to the ground by transmitting control information from the driver's cab on the electric car to the ground via an information transmission device. In a ground control system for an electric vehicle, the power is transmitted to a substation, and a speed control device installed in the substation controls the power of an overhead line leading to the substation based on the control information to control the speed, When supplying power to the electric cars on the secondary running path, it has a current capacity necessary for moving or replacing a group of electric cars that can be accommodated in the running path,
1. A method for supplying power to a vehicle depot in a ground control system for an electric vehicle, characterized in that a constant voltage lower than a maximum voltage for performance of the electric vehicle is supplied from the substation. (2) At the branch point between the main running route and the secondary running route, the overhead line switching is mutually interlocked so that power is not supplied to the overhead lines from the substations of both the main running route and the secondary running route at the same time. A method for supplying power to a vehicle depot in a ground control system for electric vehicles according to claim (1). (3) As an interlock condition for switching the power supply between the main running route and the secondary running route, both a route command signal that indicates the destination of the electric vehicle and an answerback signal that confirms that the branch road has changed to the specified direction. A vehicle depot power supply method in a ground control system for an electric vehicle according to claim (2), wherein the overhead line is switched when a signal is established.