SK382017A3 - Method for creating a three-phase power train network - Google Patents

Abstract

A method of forming a three-phase power train power network, wherein the drive track vehicle (10) or power stand (20) connects the power supply voltage to the input (12, 21) of the first static power transducer (30) that connects to the input (32) to the next a freight wagon static power converter (30n), wherein after identifying the presence of the power supply voltage (12) or (21), or (32), a three-phase power supply network is provided to any of the static power converters (30n) (30n) (40) The freight train and all other static power converters (30) to (30n) of the freight wagons are synchronized to the three-phase power train (40) of the freight train and supplied all static power converters (30) to (s) after their synchronization and connection conditions. (30n) freight wagons are powered by a three-phase power train (40) of the freight train from which they are powered individual appliances (50) to (50n).

Description

Technical field

The invention relates to a method of forming a standard industrial three-phase power network in a freight train set, which will be used to supply refrigerated containers for the transport of cargo requiring stable climatic conditions.

BACKGROUND OF THE INVENTION

At present, freight trains and freight wagons do not have any possibility of supplying three-phase appliances from a common three-phase network, which is created by static energy converters using continuous train guidance. A freight train consists of separate freight wagons connected by cables. Freight wagons are supplemented by static power converters ensuring the conversion of energy from the running train, which is supplied from the traction unit or from the power stand. Static power converters work in a common freight train network to ensure high power availability and power system reliability. Its drawback is that the individual outputs of the static power converters of each freight wagon are not aligned to the common supply network of the entire freight train.

SUMMARY OF THE INVENTION

The stated drawback is overcome by the technical solution according to the invention, which is based on the fact that the outputs of the static power converters of individual freight wagons work in a common three-phase power supply network of the freight train from which the individual consumers are supplied by supplementing each freight wagon with static power converter.

The contact line voltage is applied to the input circuit of the traction unit, where it is quantified and, if necessary, adjusted to the required value. The output voltage is applied to the continuous wiring input of the first freight wagon. An equivalent solution is to apply voltage to the input of the first freight wagon from the power rack when the train is not connected to the traction unit. The freight wagon contains a static power converter which generates at its output a three-phase supply network suitable for supplying the air-conditioning units of the containers. After starting, the static power converter evaluates the presence of a three-phase mains supply on the output side. If a three-phase power network already exists on the output side, it starts the process of synchronizing its output with that network and is connected to the network when the connection conditions are met. If the static power converter evaluates that a common three-phase power supply is not yet established, the process is started. In this way, all static power converters work on all freight wagons. Appliances in the form of air-conditioning aggregates of containers with transported cargo are subsequently supplied from the common supply network

The entire three-phase supply network is dimensioned with sufficient power reserve to supply all containers simultaneously. In the event of failure or damage to one of the static power converters of the freight wagon, the operation of this network is provided by other wagons and static power converters that operate normally, thereby significantly increasing the operational reliability of the three-phase power supply network.

BRIEF DESCRIPTION OF THE DRAWINGS

In the attached drawing of FIG. is a schematic illustration of a method of creating a three-phase power train of a freight train by means of static power converters located on individual freight wagons. The invention of FIG. is carried out within the framework of an international project dealing with increasing transport efficiency and reducing environmental impact.

DETAILED DESCRIPTION OF THE INVENTION

A method of forming a three-phase supply network 40 of a freight train, wherein a traction vehicle 10 or a power stand 20 applies a supply voltage to input 12, 21 of static power converters 30 to 30n of freight wagons, starting after sensing the presence of supply voltage at inputs 12 or 21 or 32 the process of forming a three-phase supply network 40 of a freight train, via the outputs 31 to 31n, such that one of the static power converters 30 to 30n of freight wagons creates a three-phase supply network and the other static power converters 30 to 30n of freight wagons after

EN38-2017 A3 the 50 to 50n consumers can be connected to this three-phase supply network 40 of the freight train through their inputs 41 to 41n, which have been connected as required since the network was established, providing sufficient power reserve to power the 50 to 50n appliances. 50n, divided between static power converters 30 to 30n of freight wagons.

Industrial usability

The invention relates to the field of transport of goods by rail in closed air-conditioned containers for freight wagons adapted to form a uniform three-phase supply network for a freight train.

Claims (1)

PATENT CLAIMS A method of forming a three-phase power train of a freight train, wherein the traction vehicle (10) or power rack (20) applies a supply voltage to the input (12, 21) of the first static power converter (30) of the freight wagon. another freight wagon static power converter (30n), characterized in that after identifying the presence of a supply voltage at the input (12), or (21), or (32), any of the static power converters (30) to (30n) are selected The freight wagons shall form a three-phase supply network (40) of the freight train and all other static power converters (30) to (30n) of the freight wagons shall be synchronized to this three-phase supply network (40) of the freight train. static power converters (30) to (30 n) of freight wagons power to the created three-phase power supply network (40) train from which the individual appliances (50) to (50n) are powered.