JPS5923736A - Method of power supply- and travel-control in electric vehicle - Google Patents

Abstract

PURPOSE:To install a vehicle motor control unit, which is normally placed on board the vehicle, on the ground by installing a substation provided with a control unit to control a main motor of an electric vehicle, at each wiring section divided according to a distance allotted to one unit electric vehicle. CONSTITUTION:Electric wirings 23A and 23B are divided into power-supply sections corresponding to required substations 21A, 21B, .... When a vehicle 6A is about to stop at station B, 32B, switch 27F of wiring 23B is closed and switch 27E is opened, while switch 31D of an information transferring passage 30 is closed and switch 31C is opened. Thus the vehicle 6A travels, receiving the power from substation 21C. When the vehicle 6A stops, switch 27F turns opened and switch 27E turns closed while switch 31D turns opened and switch 31C turns closed. And the vehicle 6A is now connected in power to substation 21B, and it travels utilizing a vehicle-antenna 29 and the information transferring passage 30.

Description

DETAILED DESCRIPTION OF THE INVENTION a) Description of the Technical Field The present invention relates to a control method for an electric vehicle operation system.

b) Explanation of prior art and problems A conventional transportation system and its device will be explained with reference to FIG. A constant voltage direct current or alternating current is supplied to the overhead wire 2 from the substation l. The electric vehicle 6 receives this power from the current collector 3,
Alternatively, it can be incorporated into an electric vehicle through the grounding wheel 7. An electric vehicle includes a main motor 5 and a control device 4 that controls the speed of the vehicle by controlling voltage and current supplied to the main motor. Instructions from the driver of the electric vehicle 6 are given to this control device to control the speed of the electric vehicle. In addition to this, there are other electrical equipment such as auxiliary equipment, but they are omitted and not shown in this diagram.

This method allows multiple electric vehicles to be placed in one substation section. However, there is an advantage that the substation can be easily constructed by simply supplying power at a constant voltage from the substation.

However, it is necessary to install a control device on the vehicle to control the voltage and current applied to the main motor. Since this control device requires sophisticated equipment to control the electric power, it is large in volume and weight. - To give an example, this control equipment and its related equipment occupy about 10 to 2 inches of the empty car in the case of a normal electric car (electric car) or morrail car. This amount of dead weight is constantly being transported, which results in a large loss in terms of power consumption during running.

On the other hand, in cases like Molle, the load on one tire is very strictly restricted, so in order to avoid violating this restriction when there are a large number of passengers, the number of seats is increased9, and an equipment room is installed in the passenger cabin. Tesada is complying with this restriction by devising ways to prevent passengers from boarding.

In addition, in terms of volume, in the case of mole rails, especially the straddle type that has the track under the floor, the track (two effective tower mounting units) is taken away, so the vehicle ri has to be widened to accommodate this control device. Cases arise, such as in modern urban transportation.
[When driving this vehicle on a narrow road such as a road,
It does not meet +iJ, etc. required by vehicle body rlJtX-ray rlJ, firefighting claws, etc., and becomes a major obstacle.

In terms of construction costs, modern transportation facilities are often built on roads, and in that case they are elevated. In this case, the vehicle traveling on it is a 60
It is better to make it lighter in order to reduce the construction cost of the elevated structure near the gate. In the case of the above-mentioned straddle-type mono L/- (-), if you create a longer vehicle by narrowing the inside of the car, you can widen the distance between the live load points on the girder, so as a result, (Since this moment can be reduced, the span can be made longer and the number of girder supports can be reduced overall.Girder supports can be constructed by placing piles in their foundations or constructing routes on particularly weak ground, depending on the ground strength.) Reducing this number has two major implications: reducing track construction costs.

Next (2) When considering the operational costs of maintaining and operating such transportation systems, on-board equipment is constantly exposed to adverse environments such as vehicle vibrations and wind and rain, so ground-based equipment (on-board equipment) Not only does maintenance cost a lot of money, but the efficiency of its use decreases as the vehicle is out of service during the necessary maintenance period (considering the maintenance period in addition to the reserve force considering the failure rate of the two vehicles). A reserve army will be needed.

C) Purpose of the Invention The purpose of the present invention is to improve the deficiencies of these conventional systems and to construct a transportation system that will be required in the future with low construction and maintenance costs (2) to provide an effective vehicle control method. be.

d) Structure of the invention FIG. 2 shows an embodiment of the invention. This presents a circuit corresponding to the basic power supply circuit shown in FIG. Fixedly placed on the ground. The overhead wires 23X, 23Y and the information transmission line 30 are provided with insulating parts 27X, 27Y, and the overhead wires 23X, 23Y and the information transmission line 30 are divided into two parts (divided into two sections), and a change FJ station 21 is installed corresponding to each section of the overhead lines 23X, 23Y and the information transmission line 30. In this case, if the overhead wire 23Y is used at ground potential, the insulation 27Y can be omitted.In this proposal, the on-board section of 6 is equipped with a collector or ground wheels 3A, 7A, a main motor, and its protection. One unit of circuit switching is required, and the necessary equipment 25 is mounted on the tower, and the speed i1m1 part of the main motor is moved to the substation 21 on the ground.Auxiliary equipment circuits other than these main circuits are required, but this is different (-
This is done by placing overhead wires etc. to collect the current, but this is not omitted in this diagram.

The 411 order of a driver riding a 6A vehicle is transmitted from the main controller to the information transmission device 28, the on-board antenna 29, and the information transmission line 30.
Through the substation (2), the voltage and current supplied to the vehicle (2) are transmitted according to this directive at the substation (23.2).
4 and control it. By using this method, even if the speed control unit on the vehicle is removed, it can perform the same function as if the speed controller was placed on the vehicle, and the vehicle's IRJJL Makoto, Heavy Bf, and There are many benefits that come with it. Since the speed control section is mounted on the ground, there is no need to consider vehicle vibrations, size restrictions, and weight limits for the tower mounted on the vehicle, which makes it extremely reliable. It can be an expensive device.

FIG. 3 and FIG. 4 are further explanatory diagrams considering the wiring including stations. First, FIG. 3 will be explained. This diagram shows the turning station (
A station) 32A and intermediate 1.9< (B station 3213.)C
Station 32C) is shown.

If the line heading from C station 32C to A station 32Al2 is the up line, the corresponding overhead wire 23B and the down line overhead wire 23A
is shown as a single line (23X and 23Y in Figure 2 are one line) on the same track as the route. Overhead line 23A.

23B is assumed to be direct current, and auxiliary power supply overhead wire 33
is a constant-voltage power supply that supplies single-phase alternating current to the vehicle. (All power is supplied from 21 people at L location. Two overhead power lines 33 are installed for this auxiliary power supply.
All the auxiliary equipment required for the vehicle are driven by the current collector 8 to satisfy the generally required passenger service function.

The vehicle 6A includes a current collector 3A that collects power to the main motor,
7A, a current collector 8 that collects auxiliary power, and an antenna 29 that is an information transmission device that transmits commands from the driver riding on the vehicle 6A to the substation.

The information transmission line 30 transmits the information from the antenna 29 to the substation where the six people in the vehicle are located, in this case 21C, and transmits the driver's commands.

The overhead wires 23A and 23B are connected to switching devices (for example, 27
B, 27F) required substations 211J, 21C
It is divided into supply 'Pa sections from . In accordance with this classification, the information transmission line 30 is also equipped with a switch (for example, 31C, 31D).
).

Here, power is received from the power source at the power receiving substation 24, and from this receiving substation 24 via the high voltage distribution line 22, each substation 2
Power is supplied to 1A to 21D.

With the exception of the overhead wires, this figure only shows the upstream line and the turning section, and the downstream line also has a similar configuration.

Next, the functions of the switches 27E, 27F' and the switches 31C, 31D will be explained.

FIG. 4 shows the configuration of the present invention centered on a substation. Catenary line 23I3 has air sections 27CA, 27DA, 27E
A.

27i" At is divided into two parts, and the air section is connected to the switch 27CB, 27DB, 27EB,
Substations 21A and 21B +2 are located close to each other and can be opened and closed by 27FB.
10 can be connected. Switcher 27CB, 27
DB is connected to trench switch 2 by interlock device 48A.
7EB, 27F'B is interlock device 48B
Therefore, each of them is configured not to be closed at the same time.

Basically, such air sections 27CA, 271)A..., switching devices 27CB, 27DB..., and interlock devices 48A, 48B are installed on both of the two overhead wires. In the case where one side is the grounding side, as in the case of To do (
It is also possible to do two things.

The vehicle 6A has a current collector 3A + 7A that collects power supplied from the overhead wire, and a main motor device (protection circuit, (contactors, etc.) 25, a current collector 8 that collects auxiliary power from the auxiliary power supply overhead wire 33, an auxiliary equipment 50, and a vehicle 6Al2, an information transmission oscillator 28 that transmits commands from the driver on board to the ground, and the vehicle. Main 9 such as upper antenna 29
Of course, other equipment necessary to construct the vehicle is also installed or arranged, but the functions of the present invention (2 are not directly related and have not been omitted).

The ground side device includes ground antennas 30A to 30E that receive information oscillated from onboard the vehicle, and are divided according to the sections of the overhead wire and placed opposite to the onboard antenna.

The power receiving station 2111 has a ground antenna 3QUA in a section corresponding to the range selected by the substation 21B to supply power.

Receivers 41, 42, 43, which decode and judge the signals received from 30C and 30DA. A ground control device 46 operates in response to signal commands from onboard the vehicle, an overhead line switching control device 47 that issues a power supply command to the overhead wires in the section where the vehicle to be controlled exists, and an electric power suitable for vehicle running based on instructions from the driver on board. There is a power conversion control device 45 that supplies power to the overhead wire. Still vehicle t
, (When a power generating brake is used as a control method for 32A (=, a brake resistor 44 is installed.

C) Effect of the invention First, FIG. 3 will be explained. Currently vehicle 6A is at B station 32
Suppose you are trying to stop at B. In this state, overhead wire 2
Switch 27F' of 3B is closed, switch 27E is open, switch 31D of information transmission line 30 is closed, switch 31C is open, and operation command signals and power supply for C substation 2LC and vehicle 6A are transmitted. The overhead wires are connected to each other, and the vehicle 6A travels by being supplied with power from the C substation 21C.

When the vehicle 6A stops at B station 32B, the driver of the vehicle enters the 9th power supply section from the vehicle and during the stopping time when the unit price command is 29, the switch 27F opens and the switch 27E closes, and similarly. The switch 31D is open and the switch 31C is closed to connect to the B substation. The procedure for this switching operation will be explained in detail in the explanation of the operation in FIG.
A running route to station 32A has been formed and vehicle 6A is at B substation 21.
Thanks to B's power supply function! From JB Station 3213, you can now move towards A Station 32A.

When the main controller is operated from the driver's cab of the vehicle 6A, the command information is oscillated from the on-board antenna 29 and sent to the information transmission line 30.
The command information from onboard P is received and transmitted to B substation 21B, and the controller in the substation receives the command information from onboard (2, therefore, B
The switching station 21B is activated, the voltage and current of the overhead wire 2 are controlled, and the C2 vehicle 6A operates as if the controller was mounted on the vehicle 6A. When the driver of the vehicle 6A issues an electric brake command to stop at the A station 32A, the A substation 32A switches to inverter operation and transfers the DC electrical energy generated by the vehicle 6A to the overhead wire 23.
Electricity is received through B, this DC is converted to AC, and is regenerated to the high-E power distribution line 24, thereby decelerating the vehicle for the six people. Or, if you use it as a generating brake instead of a regenerative braking, use the B substation 2L.
By changing the resistance value of the brake resistor 61 installed at B, the vehicle 6A can be decelerated by consuming the DC energy generated by the vehicle 6A through the resistor of this substation 21Ll.

When the train stops at A station 32A, during the stop time it stops at B station 32B (in the same manner as it did during the second stop, switch 27D opens and switch 27C closes, similarly (second switch 311)).
J is open and 31A is closed to connect to the A substation 21A, allowing the vehicle to enter the Y line of Al9e32A for a turnaround. When the vehicle 6A enters the Y line and stops, the switch 27C is opened again by the driver command of the vehicle 6A, and the switch 27C is opened again.
7A is closed, 27B is open, and the train turns around and stops at the outbound line of A station.

In this way, during the time when the train is stopped at the station (by commanding the driver on the second train to switch off the substation, the train and the substation can be connected to one another).
By repeating the connection to 1, the vehicle can freely control the substation on the ground in the same way as the controller mounted on the vehicle. In addition, it becomes possible to run light vehicles freely, and it becomes possible to solve various conventional problems in a sweet manner.

The overall operation is described above (2), but next we will explain the operation in more detail with a focus on the substation using Figure 4.Vehicle 6
From a person, a carrier of a constant frequency is always sent from the vehicle 6A to the opposing ground antennas 30A to 30E through the entire onboard antenna 29, regardless of the presence or absence of various signal oscillations. When a carrier is received at a substation, the vehicle stops, a command to switch the power receiving section is issued, the substation is switched, the vehicle is within the control range of that substation, and the vehicle switches to the next power receiving section. The substation continues to wait for the command from the vehicle until the command is issued.It is determined whether the vehicle 6A is present in the receiving power supply section or when it is present (
2 can determine which section of 30BA, 30C, or 30L1B you are in.

When the six-person vehicle decelerates and is about to stop at B station 32B, it is controlled from C substation 21C.

The inside of the C substation 21C is the same as the B substation 2113 in FIG. When the driver on the train issues an electric brake (regeneration) command, the regenerative brake command is transmitted to the carrier (from the onboard antenna 29 to the ground antenna 3QI) A, and then transmitted to the C substation 21CE and then to the C substation 21C. The receiver 41 receives the regenerative braking command issued from the vehicle 6A and transmits the regenerative braking command to the ground control device 46. Based on this regenerative brake command, the ground control device [646] issues a command so that the supply status becomes regenerative brake mode, and operates the power conversion control device 45 as an inverter to regenerate power to the high-voltage distribution line 22. The vehicle 6A is decelerated by applying the brake to the vehicle 6A. Here, regenerative braking can effectively utilize the regenerative current if there is another vehicle going, but if there is no other vehicle going and it is not possible to regenerate directly to the power company, then regenerative braking can be used. It can be used to slow down the vehicle. In other words, when using a power generation brake, the high-voltage power distribution line 22 is not shielded with liquid, and the energy generated by the brake resistor 44 on the ground is consumed to decelerate the vehicle.

When the vehicle 6A stops at station B 32B in this state, the driver on the vehicle issues a substation switching command from the on-board antenna 29 to the ground antenna 30 at the ground substation on a carrier. The ground antennas 30DA and 30DLl simultaneously receive this, but the C substation 32B does not operate due to this switching command, but the B substation 21B receives the switching command from the ground control device 46 via the receiver 43, and switches to the preceding vehicle. When it is confirmed that there is no preceding vehicle between stations A and 32A''B and 32B, the switching control device 47 sends a signal to the switching device 27DB.

A switching command was issued for 27EB and 27FB, and B station 32
The ground substation 2113 completes preparations for the vehicle 6A to travel from B to A station 32A. If there is a preceding vehicle between the AI3 stations, this will be detected by the carrier of the preceding vehicle, and even if the driver issues a switching command, the substation 21B will be locked so as not to issue a switching command. Switch 27DB, 2
When 7BB switches, interlock device 48A.

4813 disconnects switch 27CB and 27F'B, making it possible to control both the overhead wires and substation for the running route around station B. When the Q1 driver issues a traveling command, the voltage and current of the overhead wires are changed according to the command. control. After stopping at Tsusun 9B station 32B, if the preceding vehicle has not yet left A station 32A, the switches 27DI3 and 27EB will not switch and the conditions for vehicle 6A to depart from B station 32B will not be met.
In this situation, even if the driver of the vehicle 6A issues a departure command by mistake, this command is blocked by the ground control device 46, and the vehicle does not depart.

However, only vehicle 6A is between A station 32A and B station 32B.
! It becomes possible to depart towards 9<32A.

f) Modifications (1) When the overhead wire is AC When the overhead wire is DC, DC motors are generally used as the main motors on the train, but if the overhead wire is a three-phase AC 61e, An induction motor is used as the main motor on the train, and a VVVF control device is installed at the substation to control the speed of the induction motor on the train by controlling the voltage, current, and frequency of the three-phase AC supplied to the overhead wires. The regenerative brake also has an EJ function.

In this case, three overhead wires are required.

With the exception of the above-mentioned portions, it is possible to operate the vehicle by using the same method as described in the present invention when the overhead wire is AC (two-way control).

(2) Sharing of above-ground substations Figure 3 shows a method of installing substations independently between each station on each up and down line and at turning points. The number of places is increasing,
It becomes uneconomical. That is, while vehicles are running on the main line with close gaps between each other, the distance at the R/R station increases for each station track on the up and down lines, reducing the operating rate of the substation.

In such cases, the number of substations will be extended by several stations.

Alternatively, the number can be reduced by sharing a substation between the upper lines. Figure 5 is B in Figure 3.

This is an example in which the number of C substations is reduced to one C substation, and FIG. 6 is an example in which the C substation between BC stations is shared by the up and down lines between BC stations.

g) Overall effect As mentioned above, the driving command conditions are transmitted from the vehicle to the substation via the signal line, and the vehicle and the substation have a one-to-one correspondence to provide tonne pressure relief according to the driving command conditions. Supplied to vehicles via overhead wires,
Also, by providing an interlock function to prevent multiple vehicles from entering the service area of a single substation, it would be possible to install the control equipment and related equipment on the ground, which would otherwise have to be carried on two vehicles. This is a good thing because there are no controllers that require a lot of space under the floor of the vehicle and are very heavy (both of which are very large), so it is possible to downsize the vehicle or make the car [1] smaller and lighter. Therefore, the amount of exclusive use of the trajectory in the width direction is reduced.

In addition, it becomes possible to simplify the track structure, and it becomes possible to construct a track with superior economic efficiency by framing the IJ transportation system, which is narrow and exclusive and cannot be adopted with a wide +1J vehicle.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of the conventional method, Fig. 2 is a schematic explanatory diagram of the present invention, Fig. 3 is a detailed explanatory diagram of the present invention, Fig. 4 is a detailed diagram of the main part of Fig. 3, and Fig. 5 is a detailed diagram of the main part of Fig. 3. FIG. 6 is a diagram showing another embodiment of the present invention. ■...Substation 2...Overhead line 3.3A...
・Current collector 4...Onboard control device 6.6A...Electric car 7.7k...Current collector 8...Auxiliary equipment current collector 21.21A~21Ll...Substation 22...High voltage distribution line 23.23A, 23B... Overhead line 24...
・Power receiving substation 25...Main motor a device 27°°' Insulation section 27A~27F ,,, Switching device 27CB
, 27DB, 27EB, 27FB-...Switcher 27CA, 27DA, 27EA, 27
FA...Air section 28...Onboard information transmission device 29...Onboard antenna 30, 30A to 30E, 301JA, 3QDA...
...Information transmission lines 31A to 31D...Information transmission line switching devices 32A to 32C...Station 33...Auxiliary equipment overhead wires 41.42.43...Ground receiver 44...For station brakes Resistor 45... Power conversion control device 46... Ground control device 47... Catenary line switching device 4
B, A, 48B...Interlock device 50...Vehicle auxiliary device (7317) Agent Patent attorney Ken Chika (8(
1 other person) Figure 1 Figure 2 Figure 1

Claims (2)

[Claims] (1) [Electrical power is supplied from a substation through overhead wires installed along the running track of electric vehicles, and the running of electric vehicles is controlled by commands from the driver on the vehicle. A method for power supply and running control of an electric vehicle, comprising: providing one unit of electric vehicle for each section, and providing a substation equipped with a control device for controlling a main motor on the vehicle for each section. (2) ')li In a device that takes power from a substation through overhead wires installed on the electric vehicle running track and controls the running of the electric vehicle based on commands from the driver on the vehicle, the overhead wires are separated into multiple sections. A substation equipped with a control device for controlling the main motor on the vehicle is provided for each section, and one unit of electric vehicle is assigned to each section, and a substation equipped with a control device for controlling the main motor on the vehicle is provided for each section, and the driver can connect between adjacent substations. 3. The electric vehicle supply method according to claim 2, wherein an interlock is provided to switch connection according to a command from an adjacent substation and to switch the connection accordingly. , (blank below) Sori 4 Ryo 1 Sho 1'