JPS6033133A - Electric railway feeder sectioning device - Google Patents

Abstract

PURPOSE:To securely carry out supply and regeneration of power-running electric power by providing a feeder through sections between feeders which are connected to adjacent substations and further interposedly providing a third and a fourth diode to connect anode sides. CONSTITUTION:A feeder line 3' sectioned by sections 6a, 6c as well as diodes 7a, 7b and 17a, 17b are provided between feeder lines 2, 5 which are connected to a first and a second substation 1a, 1b respectively. And, a common node between the anodes of the diodes 17a, 17b is connected to the feeder line 3' through a thyristor 11 and a Zener diode 12 for a regenerating current. Accordingly, in whichever position among the feeder lines 2, 3' 5 and the sections 6a, 6b an electric car 8 may be positioned, a power-running electric power can be securely supplied while a regenerating power can be efficiently regenerated. Also, since the circuit is formed by the diodes 17a, 17b, the thyristor 11, and the Zener diode 12, reliability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feeding distribution device for electric railways that performs DC feeding.

11 On electric railways where power outage occurs, sections are set up to separate feeding power, but the cl air storm σ]
When the pantograph straddles a section, this section becomes short-circuited. At this time, if an accident occurs in one of the unpowered sections, the fault current is supplied from the other healthy out-of-power section via electricity M, so that not only does the accident current flow to the electric cars, but also the This will also lead to power outages in the six cities area.

For this reason, a six-ring segmentation device using diodes, as shown in FIG. 1, has conventionally been used. In FIG. 1, 1a and 1b are two DC substations adjacent to each other. The output side of the substation 1a is connected to the feeder line 2, and the output side of the substation 1h is connected to the electric line 5. A feeder wire 3 is connected in series to the feeder line 2 through a section 6a, and a section 60 is connected to the six-ring wire 5 with six-ring #i.
! 4 is placed in the 1st column. The feeder wire 3 and the feeder wire 4 are installed in series via the section 6b. 7a is a first diode whose anode side is connected to the feeder wire 2 and whose cathode side is connected to the heel wire 3. Reference numeral 7b denotes a second diode connected to the feeder wire 5 on the anode side and connected to the feeder wire 4 on the cathode side. A is the plating section of substation] a, B is the six-ring section of substation lb, C,
, C, U section middle section? Each is shown. 8 is an electric car, which has pantographs 9a and 9bV electrically connected to each other internally.In the figure, electric I8 is connected to section 6aσ) from section A to section middle section C0. The pantograph 9a is in contact with the deficient a2, and the pantograph 9b&i is passing through the
Indicates that it is in contact with. Next, the operation of the apparatus constructed as described above will be described. First of all, if an accident occurs in the military section A while the active air M8 is passing through the section 6, the accident circulation from the unsound section B to the accidental section AVc will be blocked by section 6b, so there will be no accident circulation. .

Next, when electricity M8 enters section middle section C, the power to the electric car in a healthy state is substation 1a-+feeder line 2→
Diode 7a → electricity! It is supplied via route E8. Next, when electric Ji8 passes section abYA, if an accident occurs in electric section A while pantograph 9a is in contact with feeder R3 and pantograph 9b is in contact with follower electric wire 4, then if an accident occurs in electric section A, the healthy six-ring section B Since the fault current that is about to flow from the power section B to the power section A is blocked by the section 6a and the diode 7a, no current can flow from the power section B to the fault point (not shown) in the power section A. As shown in [σ], the fault current to the adjacent six-ring section is always blocked by section 6a and diode 7a, or section 6b, or section 6c and diode 7b, so the fault current is prevented from flowing to the adjacent six-ring section via eight electric cars. Fault current will not flow between sections. However, if electricity exists under the feeder line 3.4 and the electric car performs regenerative operation, the regenerative current flows through the diodes 7a * 7b and sections 6a and 6c.
As a result, regenerative braking 7 becomes impossible. In order to eliminate such drawbacks, conventionally,
For example, the voltage of each general electric wire divided into sections is constantly monitored using a voltage detector, and the detection signal can be used to determine whether the electric car is in power running mode or regenerative running mode. An electric power system has been adopted that performs a selection system of 417 cycles between power operation and regenerative operation depending on the operating condition of the electric vehicle. The above-mentioned feeding system is implemented [is a pressure detection device and a discrimination device that discriminates the operating state of the electric vehicle based on its detection signal, and this discrimination device σ] selects zero regeneration based on the output signal. Since a control device and other equipment are required to carry out the control, the number of components increases and the overall configuration of the power evaluation device becomes very complicated.

This causes various problems such as a decrease in reliability of the device, a rise in prices, and a large amount of labor required for maintenance and inspection.

The present invention has been made in consideration of the above points, and it is possible to generate electricity by using a simple 1m circuit configuration. g] It is important to always understand the operating status, and the electric IK61j is adjusted according to the operating status.
The object of the present invention is to provide a feeding power distribution device for electric railways that can actually supply power to the train and effectively regenerate regenerative power generated by electric cars.

The configuration of the present invention is such that a first six-bar wire connected to the DC output side of the first substation and a second six-bar wire connected to the DC output side of the second substation installed in contact with the first station are connected. a third core wire provided in sections between the first feeder wire and the twenty-sixth feeder wire; an anode side connected to the first feeder wire; and a second diode whose cathode side is connected to the third feeder line VC, and whose anode side is connected to the second feeder line and whose cathode side is connected to the third feeder line. In the electric power supply section equipped with electricity, Kan-11
A third diode whose cathode side is connected to the 11th electric wire, a 4th diode whose cathode side is connected to the 2nd power wire, and a common continuity between the anode terminals of the 3rd diode and the 4th diode. The switching control element 1111 is connected to the 36th electric wire, and the anode When the Zener diode whose side is connected to the control #J terminal of the switching control element and the current under the third feeder conducts a continuous operation, the first and second substations When the first and second diodes are valved to supply power to the electric car under the third feeder line, the voltage of the third feeder line is lower than the breakdown voltage of the Zener diode. When the voltage exceeds n, an ignition current is supplied to the control terminal of the switching control confectionery, thereby causing the regenerative power switching control element of the electric vehicle and the third. The fourth diode valve is used to cause regeneration to the first and second transformers 1N and 1N.

An embodiment of the present invention will be described below with reference to Drawing V.

In FIG. 2, the same parts as in FIG. 1 are indicated by the same reference numerals, and the explanation thereof will be omitted. Between the feeder line 2 and the feeder line 5, there is a section 6 which feeds the feeder g.
13' is provided. This feeder line 3' constitutes a section intermediate section Cv. The cathode of a diode 17a is connected to the striker 11I12. The cathode of the diode 7a receives current #i via the cathode and anode of the diode 7bσ)
! 5. Diode 7a and diode 7
The common connection point 14 of b is the feeder #iJ! 3' is connected to n. The anode of diode 17a is diode 17b.
The anode and cathode valves are connected to feeder A5. A switching control element is provided between the common connection point 15 of the diode 17a and the diode 17b and the spear wire 3'.
For example, a thyristor 11 having the illustrated polarity is connected. The cathode of a Zener diode 12 is connected to the coated wire 3'. The anode of this Zener diode 12 is connected to the gate of a thyristor 11σ through a resistor 13V. Zener diode 12σ] The breakdown voltage is set equal to, for example, the regenerative voltage of an electric car.

Next, the operation of the circuit configured as described above will be described. Electricity now! It is assumed that 8 is moving in the direction from the forced section A of the substation 1a to the forced section B of the substation 1b while driving in a row. Here, the electric car 8 is present in the section 6a, and for example, as shown in the figure, a pantograph 9a is attached to the feeder line 2,
It is assumed that the pantograph 9b is in contact with the electric wire 3'. In this case, power is supplied to the electricity 1B from the substation 1a via the feeder line 2 and the diode 7a? Power is supplied from the valve to the substation 1b, and then from the substation 1b to the feeder line 5 and diode 7b.
Electrical power is supplied as follows.

Next, assuming that the electric car 8 moves and is located under the electric wire 3' (not shown), this electric car 8 is supplied with feeding power Iw2 and diode 7a unbundled from the substation la. , power is supplied from the substation lb to the feeder line 5 and the diode 7bv valve. Next electric car 8
Assume that the pantograph 9a has moved to the section 6c and, for example, the pantograph 9a has come into contact with the feeder line 3' and the pantograph 9b has come into contact with the six-ring wire 5 (not shown). At this time's1. Power is supplied to air 8 from substation 1b through a 5V valve on feeder line, and f? From lt place 1b? ! Power is also supplied to the power line through the substation 1a and the diode 7h%', and power is further supplied to the power line from the substation 1a through the 6'torque@2 and the diode 7a. Electric car 8 is substation 1
b0) In the case of moving from the active section B to the power outage section Aσ) of the substation 1a, power is supplied in the same manner as described above. As shown in Q above, electric car 8 is out of power + vllj
! Since power can be reliably supplied to any part of 2.3', 5 and sections 6a, 6c, the electric vehicle 8 can run smoothly.

Next, electricity 18 is transferred from substation 1a's military section A to substation 1b.
A case will be explained in which the vehicle is moving in the direction of "Noki force section Bσ" while performing regenerative operation. Electricity now! 8 is section 6
For example, as shown in the figure, the pantograph 9a
It is assumed that the pantograph 9b is in contact with the wire 2 and the wire 3' is in contact with the pantograph 9b.

In this case, the voltage of the feeder line 3' increases due to the regenerative voltage of the wire I8, and this increased voltage is applied to the Zener diode 1.
Since the breakdown voltage N of 2 is exceeded, a current flows through the feeder line 3', the Zener diode 12L, the resistor 13 & the gate of the thyristor 11, and the thyristor 11 is ignited. Therefore, the regenerated power of the electric car (8σ) is generated by the disconnected wire 3', the thyristor 11. The energy is regenerated to the substation 1a via the diode 17a and the feeder line 2, and is also regenerated to the substation 1a via the feeder line 2 to the feeder line 3' and the thyristor 11.
．． 1t substation with 17h diode and 5 feeder wires
T (b) to be born alive. Next, the electric car 8 moves and connects the electric wire 3.
′ (not shown), the thyristor 11 is fired for the same reason as above, and the regenerative power of the electric car 8 is transferred to the feeder line 3′ and the thyristor 11. Diode 17a
The feeder #jI2 & valve is regenerated to the substation 1a, and the feeder line 3', Cy II star 11° diode 1
71) and the missing line 5V valve to be regenerated to the substation 1b. Next, it is assumed that the electric wire 8 moves to the section 6C and contacts the wire 3' of the pantograph 9a and the wire 3' of the pantograph 9b, for example, and the wire 5 of the pantograph 9b (not shown).

In this case, the thyristor 11 is not fired for the same reason as above, so the regenerative power of the electric car 8 is t#i13', and the thyristor 11. Regeneration is carried out to the substation xb through the diode 17b and five feeder lines, and regenerated to the substation 1b via the five lambda electric wires (nl), and further via the feeder line 3', the thyristor 11° diode 17fi, and the two feeder lines. substation lf
i will be regenerated. Sho electricity! 8 is substation lb military section B
In the case of moving from the substation 1a toward the hole-shaped section A, the regeneration of force is performed in the same manner as described above. Electrical I8 as described above feeds wires 2.3', 5 and section 6a.
Since it depends on whether the electric chip is regenerated reliably no matter where it is present in t6c, it can be used effectively without any regenerative chip loss.

As described above, according to the present invention, the first feeder line connected to the DC output side of the first substation and the DC output line 1111 of the second substation installed adjacent to the first substation a second feeder wire connected to the first feeder wire; a third feeder wire provided in sections between the first feeder wire and the second feeder wire; The first wire is connected to the cathode side and the third feeder wire is connected to the cathode side.
a second diode having an anode side connected to the second feeder line and a cathode 11% 11 connected to the third feeder line, the cathode side being connected to the third feeder line; A third diode connected to the first electric wire, a fourth diode whose cathode side is connected to the second electric wire, and the anodes of the third diode and the fourth diode are commonly connected, and ] The common connection point and the third feeder line? A valve is inserted in the connecting electric circuit, a switching control element for flowing regenerative current, and a Zener diode whose cathode side is connected to the third feeder line and whose anode side is connected to the control terminal of the switching control element. Since we prepared, the electricity ■ is the first feeder line,
Second Ki 1! line, third missing line and section σ)
Even if the current position is present, it is possible to grasp the operating status of the electricity I, and also to ensure that the power is supplied according to the operating status. The regenerated power V can be effectively regenerated. In addition, since it is constructed with simple circuits such as the third and fourth diodes, switching control elements, and zener diodes, the reliability of the device is extremely high, and the entire device can be constructed at a low cost. ] If you get the effect, try it.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an example of a conventional feeding distribution device σ]-lol, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. 111, lb...DC substation, 2.3', 5...Feeder line, 6a, 6c...Section, 7a+7b, 17a+
17b...Diode, 8...Electrical group, 9as9b
... Pantograph, 11... Thyristor, 12...
・Zener diode. Procedural amendment (plot 1. Indication of the case 1989 Patent Application No. 189871 2, Name of the invention Electric railway feeder classification device 3, Person making the amendment Relationship to the case Applicant (010) Meiden Co., Ltd. November 29, 1986 subject to correction

Claims (1)

[Claims] +ll A 1 t first electric wire connected to the DC output side of the first substation, and a 1 t electric wire connected to the DC output side of the n@2 substation installed adjacent to the first substation. the second feeder wire, and the second feeder wire
! and the second feeder wire σ], the anode side of which is connected to the first feeder wire, and the cathode side of which is connected to the third feeder wire.
An electric railway hammer comprising a first diode connected to a feeder line, and a second diode whose anode side is connected to the second feeder line and whose cathode side is connected to the third feeder line. In the sorting device, the cathode side is
a fourth diode connected to the feeder line, a fourth diode whose cathode side is connected to the second feeder line, and a fourth diode connected to the second feeder line;
a switching control element that connects the anodes of the diode and the fourth diode in common, and is inserted into an electric circuit connecting the common connection point and the third electric wire 6V to flow a regenerative current;
A feeding distribution device for an electric railway, comprising a Zener diode whose cathode side is connected to the third feeding line and whose anode side is connected to the control terminal 1c of the switching control element. (2) The feeding distribution device for electric railways according to claim 1, wherein the switching control element is a thyristor.