DD220271A1 - CIRCUIT ARRANGEMENT FOR ELECTRICAL CONSUMER GROUPS IN RAIL VEHICLES, ESPECIALLY TRAVEL VEHICLES - Google Patents

Abstract

THE INVENTION CONCERNS A CIRCUIT ARRANGEMENT DESCRIBED ABOVE, PARTICULARLY FOR DIFFERENT TYPES OF TRAVEL VEHICLES FOR CONNECTION TO AUTONOMOUS OR CENTRAL ENERGY SUPPLY PLANTS. THE OBJECTIVE OF THE INVENTION IS A CIRCUIT FOR GREATER OPERATIONAL SAFETY AND FUNCTIONALITY, ECONOMIC MANUFACTURING OF APPLIANCE GROUPS AND ESSENTIAL RATIONALIZATION, AND SIMPLIFICATION IN OPERATING ENVIRONMENT. OBJECT OF THE INVENTION IS A CIRCUIT ARRANGEMENT WHICH ALLOWS TO ALWAYS SWITCH THE SAME CONSUMPTION GROUPS OF A CAR TYPE TO AUTOMATIC AND EVEN CENTRALIZED POWER SUPPLY OR BOTH SUPPLIES TO THE VEHICLE NETWORK. IN THE PURPOSE OF THE INVENTION, THE SAME CONSUMER GROUPS ASSISTED IN THE TYPE OF VEHICLE HAVE BEEN SWITCHED TO A COMMON DC CIRCUIT RAIL, WHICH HAVE THE CIRCULAR THREE-PHASE MOTORS THROUGH THE THREE-PHASE INVERTER AND THE SPECIAL CONSUMERS HAVING A SINGLE-PHASE INVERTER CONNECTING THEM. FOR OUTDOOR POWER SUPPLY, THE THREE-PHASE INVERTER IS CONSISTENTLY CHARGED TO WHICH THE VEHICLE BATTERY AND THE OTHER DC POWER CONSUMERS ARE SWITCHED. THE POWER SUPPLY IS DIRECT AND THE THREE-PHASE VOLUME IS IN THE POWER SUPPLY BY VEHICLE BATTERY. AC POWER CONSUMERS THROUGH THE ROTARY FLUX INVERTER OR BZW. Single-phase inverter on the DC busbar.

Description

Field of application of the invention

The invention relates to a circuit arrangement for electrical consumer groups of the vehicle equipment of rail vehicles, in particular of passenger cars for long-distance traffic, for connection to autonomous or central power supply systems, for the various types of vehicles, such as compartment, open-plan, lying, sleeping, dining, Buffet cars and their combinations with air conditioning and pressure ventilation systems, equally suitable.

Characteristic of the known technical solutions

In passenger coaches with air conditioning and autonomous energy supply is already well known to connect to the DC electrical system following electrical storage elements and consumer groups:

- Vehicle batteries to power the cars in the state,.

- DC motors for compressor and fan of refrigeration system, '.

- low voltage radiator,. '_

- Energy dissipation devices, such as transistor ballasts, central single-phase inverters or rotary converters for powering the fluorescent lamps, '

- Glühlämpenbeleuchtung, '

- Special consumers, such as domestic water heating, boiler water heaters, shavers, kitchen equipment, refrigerators, drinking water coolers, cleaning equipment,

- Schutzhund control devices. ; -

Of these, the DC motors of the refrigeration system are the largest consumers of energy.

Other types of cars, such as food and buffet cars have similar, sometimes even more extensive consumer groups such as the

above passenger coaches with air conditioning. ν;

In such passenger car with air conditioning, but central power supply, a three-phase change spur is provided by this power supply. To the AC electrical system are then connected:

- The battery charger for charging the car battery and to power low-power DC consumers, such as.

• Protection and control devices,.

  Drive motor for the circulating air blower,

  Lighting equipment,

- Motors of the refrigeration system, designed as three-phase motors, /

- lighting equipment,

- Special consumers, like

• Service water ^heating;

  Boiler water heater,; >?

• razors,

  Kücheneinrichtuhgen,. , '.' ''

  Refrigerators and others.

The consumer groups provided in autonomous energy vehicles generally differ in their input voltage from those provided in centralized power cars. For example, in vehicles with autonomous power supply, there is usually a DC voltage of 110V and in cars with centralized power supply, a three phase AC voltage of 220V / 380V, 50Hz on the electrical system). If passenger coaches with both autonomous and centralized power supply are manufactured in the same wagon-building operations and used in the same railway administration, additional problems and disadvantages arise for the manufacturers and operators. Thus, different consumer groups must be developed and manufactured for both energy supply types. As a result, the already small production lots are even more reduced and the production becomes even more uneconomical

 In addition, the production of the respective device groups must because of the different input voltages of

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Consumers often take place in different factories or at least different manufacturing devices are required. , -

When operating the passenger coaches, additional expense arises in the maintenance, repair and warehousing. The diversity of equipment and facilities requires additional qualification of maintenance, repair and storage personnel. Spare parts procurement and warehousing are becoming more difficult and expensive.

The static power supply unit with three-phase current output used for central power supply is

relatively complicated and expensive. '.

According to DET, Issue 5/83, page 223 is already known in trains trains of the SNCB for intercity traffic, all auxiliary equipment

supplied with direct current, which is generated by a static converter. ^

This solution is only for trainsets of this type and only for those with a central power supply (1000 to 3000V) and not for a power supply of all electrical load groups in rail vehicles of different types

suitable. ,

With a central power supply, an additional battery charger is inevitably required. When powering the coach from the battery, only the consumers connected to the battery can be supplied with energy.

The three-phase load can not be supplied with energy, since in this case no three-phase current is generated. The relatively expensive and heavy battery can therefore only be partially used. -

Object of the invention

The object of the invention is the conception of a circuit arrangement for electrical consumer groups in rail vehicles, which ensures greater reliability and functionality as well as a more economical production of the respective device groups and a significant rationalization and simplification in operational use.

Explanation of the essence of the invention

The invention has for its object to develop a circuit arrangement which avoids the disadvantages of known arrangements and which should make it possible, both autonomous, as well as central power supply as well as both types of energy in a particular type of car, always the same electrical consumer groups to the to switch respective electrical system. , :

^r According to the invention all the same, associated with the respective type of car consumer groups are connected to a common DC bus. ,.

For wagons with a central power supply, the wagon battery may be connected directly to the DC bus, and the three-phase motors of the refrigeration system are connected to the three-phase inverter both in the case of autonomous and central power supply to the various wagon types. In addition, the special consumers, such as shavers, kitchen equipment, refrigerators, drinking water coolers, to a single-phase inverter, which is fed by the DC bus, switched.

Another feature of the circuit arrangement according to the invention is that in passenger coaches with autonomous and central power supply and energy supply of the three-phase motors for driving the air conditioning of the proposed three-phase inverter is also designed as a charging rectifier when a supply of external power, for example, from the three-phase grid, takes place. In this case, the vehicle battery and the other DC consumers are connected to this charging rectifier. \ i

Another feature of the invention is that in passenger coaches with air conditioning and central power supply and a power supply of the car by means of the vehicle battery, the DC consumers directly to the DC bus and the three-phase or. AC consumers to the three-phase or. Single-phase inverters are connected, wherein the three-phase or. the other single-phase inverters are in turn connected to the DC bus. The circuit arrangement according to the invention offers the advantages that in both types of energy supply the expensive and maintenance-consuming DC motors for driving the air conditioning units are replaced by cheaper three-phase motors. The advantages of the three-phase motors are thus fully utilized for both types of power supply. At the same time, the reliability and functionality of the system is increased.

In an energy supply of the car in the stationary mode of a three-phase grid, designed as a charging rectifier three-phase inverter at the same time load the car battery and also supply the connected DC consumers with energy of the same voltage.

Important functional groups of the three-phase inverter and the transformer are thus used for the different feed-in conditions, ie multiple times.

The function of a circuit arrangement according to the invention for electrical consumer groups in rail vehicles with autonomous energy supply, for example in a passenger coach with air conditioning, is the following: From the generator or other system for generating electrical energy on the rail vehicle, for example, a three-phase alternating voltage is generated with variable frequency, in the downstream rectifier is converted into a DC voltage. This DC voltage feeds the DC busbar. From this, all consumer groups, such as the vehicle battery, transistor switching devices or central lighting inverters for powering the fluorescent lamps, incandescent lamps, protection and monitoring devices, a three-phase inverter with a downstream iYransformatof for powering the AC motors, heaters and several single-phase inverters for power supply of AC Strom'verbern small power, supplied with the required energy. ' . "

The function of a circuit arrangement according to the invention for the same electrical load groups in rail vehicles with a central power supply, for example in a passenger coach with air conditioning, is as follows:

The high-voltage electrical energy arriving from the central power supply, for example on the high-voltage throughput power, is converted into a DC voltage by a static energy supply device, for example an energy converter, and fed to the DC bus. All of the same energy groups, without exception, are supplied with the necessary energy, as they have already been in rail vehicles

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Embodiment.

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawings show:

"Fig. Figure 1: the electrical consumer group circuitry in an air-conditioned passenger coach with autonomous

Power supply, and Figure 2: the circuit arrangement of the electrical consumer groups in an air-conditioned passenger coach with central

Power supply. , .. ··· '·'

As can be clearly seen from the two circuit diagrams according to FIG. 1 and FIG. 2, both in the autonomous power supply according to FIG. 1 and in the central power supply according to FIG. 2, the passenger coaches with air conditioning all have the same consumer groups assigned to this type of wagon common direct current busbar connected.

In the circuit arrangement for autonomous power supply of FIG. 1, the DC busbar is connected to the generator 20 with downstream rectifier 21. With the DC bus now all consumers, namely the vehicle battery 2, the transistor switching devices 13 and the central illumination inverter for powering the fluorescent lamps 18, the bulbs 19 with the voltage stabilizer 15, the protection and monitoring devices 16, the three-phase inverter with downstream transformer 10th for supplying power to the three-phase motors 3; 4 and 5 of the air conditioner, the heaters 17 and the single-phase inverter 11 for powering the AC power consumers small power, namely the shavers 6, the refrigerators 7 and and the drinking water cooler 9, electrically connected. With state of Reiezugwagens all devices connected to the _x DC bus load from the vehicle battery to be supplied with energy. For external supply 12 from the local network, the three-phase inverter works as a rectifier and feeds the DC bus. ^: ,

The circuit arrangement for central power supply according to FIG. 2 shows how the DC busbar 1 is electrically connected to the energy converter 22 located on the high-voltage passage line 23. The same electrical consumer groups, as shown in FIG. 1 and already described with reference to this FIGURE, are then connected to the DC bus. , ., ~;

The two figures 1 and 2 can be further seen as the power to the three-phase motors 3; 4 and 5 of the air conditioner provided three-phase inverter 10 is also designed as LadegJeichrichter and both the vehicle battery 2 and the other DC consumers 13 'to 17 are connected to this. Finally, the two figures 1 and 2 still show how in the power supply of the car by means of the vehicle battery 2, the DC consumers 13 to 17 are connected directly to the Gieichstromsammelschiene 1 as the three-phase current consumers 3; 4 and 5 are electrically connected to the three-phase inverter 10 and the AC consumers 6 to 9 with the single-phase inverter and how the three-phase inverter 10 and the single-phase inverter 11 are connected to the DC bus 1.

Claims (3)

-2- 253 758 8 '·' -. "-...,.; · '" ...! Invention claims: 1. Circuit arrangement for electrical consumer groups in rail vehicles, especially passenger cars of different types for connection to autonomous or central power supply facilities, characterized in that both autonomous and central power supply as well as both types of energy in a particular type of car, 'all the same, the respective type of car assigned Consumer groups (3 to 5, 6 to 9 and 13 to 17) are connected to a common DC busbar (1), in vehicles with central power supply optionally the vehicle battery (2) is connected directly to the DC bus and that both autonomous and central Energy supply of the different types of wagons the three-phase motors (3; 4; 5) of the refrigeration system and the special consumers of alternating current, such as shavers (6), refrigerators (7; 8), drinking water cooler (9) u. Like. Are connected to the same three-phase inverter (10) or high at a further Einphasenwechsetrichter (11). ι 2. Circuit arrangement according to item 1, characterized in that in passenger coaches with autonomous and central power supply to the power supply of the three-phase motors for driving the air conditioning provided AC inverter (10), at feed of external current (12), at the same time designed as a charging rectifier and both the vehicle battery (2) and the other DC consumers (13 to 17) are connected to this. 3. Circuit arrangement according to item 1, characterized in that in passenger coaches with air conditioning and autonomous' or central power supply, in a power supply of the car by means of the vehicle battery (2), the DC consumers (13 to 17) directly to the DC busbar (1) and the AC respectively. AC consumers (3 to 5 or 6 to 9) to the three-phase inverter (10) or even to a further single-phase inverter (11) are connected and these inverters (10 and 11) to the DC busbar (1). are connected. <. . For this 2 pages drawings. '-