RU8931U1 - PASSENGER WAGON ELECTRIC SUPPLY COMPLEX - Google Patents

Abstract

1. The power supply complex of a passenger carriage, comprising an alternating current generator with a power winding and an excitation winding, a battery connected to common buses, a single-wire high-voltage trunk with a switch connected to it, a transformer with primary and secondary windings, a power rectifier, the outputs of which are connected to a common to the tires with the wagon load connected to them, the inputs of the power rectifier are connected to the power winding of the generator through the opening contacts of the switching device and through The closing contacts of the switching device are connected to the secondary winding of the transformer, the primary winding of which is connected to the input of an external alternating current network, a generator voltage control unit, the outputs of which are connected to the generator excitation winding, characterized in that the input of the AC mains winding, a high-voltage static converter, are additionally introduced a battery switch having closing and opening contacts, wherein one of the poles of the battery connected to the corresponding common bus of the car through the NC contact of the battery switch and through the serially connected contact of the battery switch and the charger, a control unit connected to the operational power circuit, the outputs of the control unit being connected to the battery switch and to the input of the generator voltage control unit and its make contact is included in the circuit between the switch and the static converter, the outputs of which are connected

Description

J) IO

PASSENGER WAGON ELECTRIC SUPPLY COMPLEX

Technical field

The utility model relates to the electrical equipment of vehicles, specifically railway passenger cars, and is intended to provide power to auxiliary equipment using various power sources.

State of the art

A known power supply system for a railway passenger carriage 1, comprising a subcar alternating current generator with a power winding and an excitation winding, a step-down transformer connected by a primary winding to the input of an external AC network, a power rectifier, the outputs of which are connected to the common busbars of the car with the car load rechargeable battery, single-wire high-voltage trunk. The inputs of the power rectifier through the switch contacts are connected to the power winding of the generator and to the secondary winding of the step-down transformer. The generator field winding is connected to the outputs of the generator voltage control unit. The heating elements of the car boiler are connected to a single-wire high-voltage line through a switch.

A disadvantage of the known system 1 is the impossibility of power supply of the car (with the exception of the heating elements of the boiler) from a single-wire high-voltage line and from the car AC mains. In addition, the car’s power supply is switched to an external AC network manually outside the car, which is inconvenient in operation.

Utility Model Essence

The basis of this utility model is the task of creating a power supply complex for a passenger car, which provides consumers with power under all modes of car power supply with priority power from the car generator and battery and eliminates the need for manual power supply to an external network.

IPC: 60 L 1/00

The solution to this problem is achieved by the fact that in the power supply complex of a passenger carriage containing an alternating current generator with a power winding and an excitation winding, a rechargeable battery connected to common buses, a single-wire high-voltage trunk with a switch connected to it, a transformer with primary and secondary windings, a power rectifier the outputs of which are connected to the general bus with the wagon load connected to them, the inputs of the power rectifier through the disconnecting contacts of the switching devices connected to the power winding of the generator and through the make-up contacts of the switching device connected to the secondary winding of the transformer, the primary winding of which is connected to the input of the external alternating current network, the voltage regulator of the generator, to the outputs of which the generator excitation winding is connected, according to the utility model, the input of the alternating main current, high voltage static converter, battery switch having a closing and opening to contacts, moreover, one of the battery poles through the NC contact of the battery switch or through the serially connected contact of the battery switch and the charger is connected to one of the common tires of the car, the unification unit connected to the operational power supply, and the outputs of the control unit are connected to the switch the battery and to the input of the generator voltage regulation unit and its make contact is included in the circuit between the switch and the static a converter, the outputs of which are connected to the common tires of the car, the inputs of the external network and the subcar line of the alternating current are connected to the primary winding of the transformer each through a series-connected closing and opening contacts of the control unit.

In addition, it is provided that the switching device is made in the form of an electromagnetic contactor, the winding of which is connected to the secondary winding of the transformer, and the control unit is equipped with a switching device having a power button, and a switch for selecting a power source, each of which is connected to the operational via the winding of a separate contactor power circuit, while the make contact of the first contactor is connected to the circuit between the switch and the static converter, the second and third contactor have make and break contacts, connected in series in the circuit between the primary winding of the transformer and the corresponding inputs of the external network and the car alternating current main.

The introduction of distinctive features in the utility model makes it possible to create a power supply complex for a passenger car, which provides consumers with power for all modes of power supply to the car with priority power from the car generator and the battery and to exclude the manual transfer of power to an external network outside the car.

Brief Description of the Drawings

The essence of the utility model is illustrated by the circuit shown in figL. With reference to FIG. 1 marked:

1- generator;

1.1- power winding;

1.2- field winding;

2- transformer;

2.1, 2.2 - primary and secondary windings, respectively;

3- high-voltage single-wire trunk;

4- circuit breaker;

5- input of an external network;

6- input of the car line;

7- rechargeable battery; 8, 9 — common car tires;

10- load (consumers);

11- power rectifier;

12- switch;

12.1, 12.2 - opening and closing contacts, respectively;

13- charger;

14- control unit;

15- switching device;

16- button;

17 - switch selection of the source of power supply; 18, 19, 20 - contactors (windings);

18.1 - make contact of the contactor 18;

19.1,19.2 - closing and opening contacts of the contactor 19;

20.1,20.2 - closing and opening contacts of the contactor 20;

21- operational power circuit;

22- generator voltage control unit;

23-converter;

24-switching device;

24.1, 24.2 - closing and opening contacts of the switching device 24, respectively.

The best option for implementation

The passenger car’s power supply complex contains a subcar alternator 1 with a power winding 1.1 and an excitation winding 1.2, a step-down transformer 2 with a primary 2.1 and a secondary 2.2 windings, a single-wire high-voltage trunk 3 with a switch 4, an external AC input 5, an input of an alternating 6 main, and an alternating 6 main current, battery 7. Common buses 8.9 of the car with a load of 10 connected to them are connected to the outputs of the power rectifier 11. The battery 7 is connected to the common bus 8 by one pole the car, and its other pole through the disconnecting contact 12.1 of the switch 12 and through the serially connected make contact 12.2 of the switch 12 and the charger 13 is connected to another common bus 9 of the car. The control unit 14 is equipped with a switching device 15 having a button 16, and connected to the common pole of the power supply source selection switch 17, having three positions — a, b, and c, each of which is through the contactor winding 18, 19, 20, respectively connected to the operational supply circuit 21. The outputs of the control unit 14 are connected to the switch 12 and to the input of the voltage control unit of the generator 22, the outputs of which are connected to the excitation winding 1.2 of the generator 1. The closing contact 18.1 of the contactor 18 is included in the high voltage the connection between the main switch 4 and the input of the static converter 23, the outputs of which are connected to common bus bars 8 and 9 of the wagon. The primary winding 2.1 of the transformer 2 is connected to the input of the external AC network 5 through the serially connected make contacts 20.1 of the contactor 20 and the disconnect contacts 19.2 of the contactor 19 and to the input of the AC carriage 6 through the series-connected make contacts 20.2 of the contactor 20 and the make contacts 19.1 of the contactor 19, respectively . The secondary winding 2.2 of the transformer 2 is connected to a switching device 24 (contactor winding). The inputs of the power rectifier 11 are connected to the power winding 1.1 of the generator 1 through the opening contacts 24.2 and to the secondary winding 2.2 of the transformer 2 through the closing contacts 24.1 of the switching device 24.

Complex operation

The complex works as follows.

The priority mode of operation of the complex is the power supply of the load 10 from the generator 1 and the battery 7. Moreover, thanks to the open contacts 18.1, 24.1, 19.1 and 20.1,

excludes the supply of electricity from external sources 3, 5, 6 to the common tires 8, 9 of the car. In this mode, while the car is parked, load 10 is powered by the battery 7 through the opening contact 12.1 of the switch 12. When the car reaches a speed of 35-40 km / h, when the generator 1 can start to take over the car’s power supply, the switch is activated by the signal of the control unit 14 12 and the battery 7 is connected to the common tires 8 and 9 of the car through the make contact 12.2 of the switch 12 and the charger 13. In this case, the generator 1 provides power to the load 10 from its power winding 1.1 through the disconnect contacts 24.2 of the switching device 24 and the power rectifier 11, as well as the charge of the battery 7. When the speed of the car decreases, the car again switches to power supply from the battery 7 in the reverse order. In the presence of a centralized power supply for train wagons, both on the go and at a train stop from a high-voltage single-wire trunk 3 or from an alternating current subcar 6, power supply modes of a load of 10 from them are possible. To enable these modes, the switching device 15 is activated (by pressing the button 16) and the winding of one of the contactors 18, 19, or 20 is connected (depending on the position of a, b, c) to the operational power supply circuit 21 via a common terminal switch selection of the power source 17 and the switching device 15. When the switching device 15 is activated, the control unit 14 supplies a signal to the input of the voltage control unit of the generator 22, disabling its excitation, which removes voltage from its power winding 1.1, as well as yuchaet switch 12 to the battery 7 through the charging mode battery charger 13. By setting the power source selection switch 17 in one of the positions selects the external source. In position "a, for example, the contactor 18 is activated and, with its contact 18.1, supplies voltage from the high-voltage line 3 to the input of the converter 23, from the output of which voltage is supplied to the common tires 8, 9 of the car. In this mode, the power rectifier 11 does not work. If there is voltage in the AC subcar line 6, the power supply source selection switch 17 is set to position “b”, the contactor 19 is activated and its contact 19.1 connects the input of the car line 6 to the primary winding 2.1 of the transformer 2 through closed contacts 20.2 of the contactor 20. Switching device 24 connected to the secondary winding 2.2 of the transformer 2, is activated and its contacts 24.2 disconnects the power winding 1.1 of the generator 1 and connects the secondary winding 2.2 of the transformer 2 to the inputs of the forces new rectifier 11, from which the load 10 is supplied and the battery 7 is charged.

position "in the selection switch of the power supply source 17, which corresponds to the carriage connected to the external AC network in the parking lot, the contactor 20 is turned on, which, through its contacts 20.1, connects the input of the external AC network 5 to the primary winding 2.1 of the transformer 2. Similarly to the above, the power winding 1.1 of the generator 1 is turned off and the secondary winding 2.2 of the transformer 2 is connected to the inputs of the power rectifier 11. If it is necessary to switch to the internal power supply of the complex, by activating the switching device 15 again, the line for connecting the operational power circuit to the switch for selecting the power supply 17 is broken , while the contactors 18 or 19 or 20 are disconnected and their contacts transfer the complex to power from the generator 1 or from the battery yatornoy battery 7, depending on the movement of the car. A similar transfer of power supply to the complex is drained; it also occurs automatically when voltage is removed from external sources 3, 5, 6.

From the above it can be seen that the proposed power supply complex for a passenger car provides a load for all modes of car power supply with priority power from the car generator and battery and eliminates the need for manual transfer of power to an external network outside the car, which leads to the task.

Industrial applicability

The SPC “Express” has developed documentation for a complex for creating a prototype for the purpose of testing.

Sources of information

1. "Instructions for the train mechanic 0.521-01.02.06: 002, GDR, Waggonbau Ammendorf GmbH, 1989, prototype.

Claims (3)

1. The power supply complex of a passenger carriage, comprising an alternating current generator with a power winding and an excitation winding, a battery connected to common buses, a single-wire high-voltage trunk with a switch connected to it, a transformer with primary and secondary windings, a power rectifier, the outputs of which are connected to a common to the tires with the wagon load connected to them, the inputs of the power rectifier are connected to the power winding of the generator through the opening contacts of the switching device and through The closing contacts of the switching device are connected to the secondary winding of the transformer, the primary winding of which is connected to the input of an external alternating current network, a generator voltage control unit, the outputs of which are connected to the generator excitation winding, characterized in that the input of the AC mains winding, a high-voltage static converter, are additionally introduced a battery switch having closing and opening contacts, wherein one of the poles of the battery connected to the corresponding common bus of the car through the NC contact of the battery switch and through the serially connected contact of the battery switch and the charger, a control unit connected to the operational power circuit, the outputs of the control unit being connected to the battery switch and to the input of the generator voltage control unit and its make contact is included in the circuit between the switch and the static converter, the outputs of which are connected to the common tires of the car, the inputs of the external network and the subcar line of the alternating current are connected to the primary winding of the transformer, each through a series-connected closing and opening contacts of the control unit.  2. The complex according to claim 1, characterized in that the switching device is made in the form of an electromagnetic contactor, the winding of which is connected to the secondary winding of the transformer. 3. The complex according to claim 1, characterized in that the control unit is equipped with a switch-on device having a power button and a switch for selecting a power source, each of which is connected to an operational power supply circuit through a winding of a separate contactor, and the make contact of the first contactor is included in the circuit between the circuit breaker and the static converter, the second and third contactors have closing and opening contacts, connected in series in the circuit between the primary winding of the transformer and corresponding they introduce an external network and undercar line AC.