CN103552476A

CN103552476A - Hybrid railcar traction system

Info

Publication number: CN103552476A
Application number: CN201310592619.1A
Authority: CN
Inventors: 罗林业; 李保生
Original assignee: Yongji Xinshisu Electric Equipment Co Ltd
Current assignee: CRRC Yongji Electric Co Ltd
Priority date: 2013-11-22
Filing date: 2013-11-22
Publication date: 2014-02-05
Anticipated expiration: 2033-11-22
Also published as: CN103552476B

Abstract

The invention particularly relates to a hybrid railcar traction system, and aims to solve the problems that the conventional hybrid railcar traction system is complex in switching, inconvenient to operate and low in utilization ratio. The hybrid railcar traction system adopts the structure that a diesel generator set is connected to a rectifier; the rectifier, a normally-closed contact of a power change-over switch, a contactor set, a direct current traction motor set, and a normally-closed contact of a direction change-over switch are sequentially connected in series; a traction accumulator battery, a fuse, a direct current contactor, a smoothing reactor, a normally-open contact of the power change-over switch, the contactor set, the direct current traction motor set, a normally-open contact of the direction change-over switch, and a chopper are sequentially connected in series; the output end of a driver controller is respectively connected with the input ends of a constant-power excitation controller, the chopper and the direction change-over switch; the output end of the constant-power excitation controller is connected with the input end of the diesel generator set; the output end of a power select switch is connected with the input end of the power change-over switch. The hybrid railcar traction system has the advantages of simplicity and convenience in operation, and high utilization ratio of vehicle-mounted equipment.

Description

Double dynamical railcar traction system

Technical field

The present invention relates to rail vehicle traction technique, be specially a kind of double dynamical railcar traction system.

Background technology

Along with people's environmental demands improves gradually, some sections require rail vehicle zero-emission, low noise, quiet smooth running, and internal combustion rail vehicle is restricted in the use in this section, need to configure storage battery as traction power source; Some section long operational times, and pass through at a high speed, internal combustion rail vehicle just in time adapts to the requirement in these sections; The double dynamical rail vehicle simultaneously with diesel powerplant and battery pack has met user's user demand.

, often there is powershift complexity, inconvenient operation and the low problem of degree of utilization in the double dynamical railcar traction system then mating with it at present.

Summary of the invention

There is switching complexity, inconvenient operation and the low problem of degree of utilization in order to solve existing double dynamical railcar traction system in the present invention, a kind of double dynamical railcar traction system is provided.

The present invention adopts following technical scheme to realize: double dynamical railcar traction system, comprises driver controller, permanent power excitation controller, power select switch, diesel powerplant, rectifier, power conversion switch, contactless switch group, DC traction motor group, traction accumulator group, safety fuse cutout, DC contactor, smoothing reactor, chopper, reverser;

The mouth of diesel powerplant is connected with the input end of rectifier, and the normally closed contact of the normally closed contact of rectifier, power conversion switch, contactless switch group, DC traction motor group, reverser is connected in series successively and forms the first closed series loop;

The open contact of the open contact of traction accumulator group, safety fuse cutout, DC contactor, smoothing reactor, power conversion switch, contactless switch group, DC traction motor group, reverser, chopper are connected in series successively and form the second closed series loop;

The mouth of driver controller is connected with the input end of permanent power excitation controller, the input end of the input end of chopper, reverser respectively, the mouth of permanent power excitation controller is connected with the input end of diesel powerplant, and the mouth of power select switch is connected with the input end of power conversion switch.

During operation, power select switch is controlled the contact of power conversion switch and is selected at normally closed contact and open contact, thereby controls the connecting and disconnecting of the first closed series loop and the second closed series loop, the propulsion source that selection need to be devoted oneself to work; Driver controller is controlled the contact of reverser and is selected at normally closed contact and open contact, realize electric current forward and reverse flowing in reverser internal inductance, thereby the forward and backward of controlling DC traction motor group to, further control the service direction of rail vehicle; Driver controller, drive permanent power excitation controller to control diesel powerplant to have grade infinite speed variation and permanent power controlling run; Driver controller drives chopper to control traction accumulator group, and then controls the variable voltage control running of DC traction motor; Overcome existing double dynamical railcar traction system and had switching complexity, inconvenient operation and the low problem of degree of utilization.

Contactless switch group comprises the first contactless switch, the second contactless switch; DC traction motor group comprises the first DC traction motor, the second DC traction motor; The first contactless switch and the first DC traction motor are connected to form the first series arm, and the second contactless switch is connected to form second series arm in parallel with the first series arm with the second DC traction motor.

Reasonable in design of the present invention is reliable, and diesel powerplant is according to traditional permanent power control mode operation, and the rail vehicle continuous working period is long, and speed is high; The discharge in service of traction accumulator group is zero, and noise is low, and steadily quiet, power selection is conveniently carried out in arranging of power select switch, has advantages of that easy and simple to handle, circuit reduction and mobile unit degree of utilization are high.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

The specific embodiment

Double dynamical railcar traction system, comprises driver controller AC, permanent power excitation controller AE, power select switch SA, diesel powerplant GS, rectifier UR, power conversion switch QP2, contactless switch group KM, DC traction motor group M, traction accumulator group GB, safety fuse cutout FU, DC contactor KM3, smoothing reactor L, chopper UP, reverser QP1;

The mouth of diesel powerplant GS is connected with the input end of rectifier UR, and the normally closed contact of the normally closed contact of rectifier UR, power conversion switch QP2, contactless switch group KM, DC traction motor group M, reverser QP1 is connected in series successively and forms the first closed series loop;

The open contact of traction accumulator group GB, safety fuse cutout FU, DC contactor KM3, smoothing reactor L, power conversion switch QP2, contactless switch group KM, the open contact of DC traction motor group M, reverser QP1, chopper UP are connected in series successively and form the second closed series loop;

The mouth of driver controller AC is connected with the input end of permanent power excitation controller AE, the input end of the input end of chopper UP, reverser QP1 respectively, the mouth of permanent power excitation controller AE is connected with the input end of diesel powerplant GS, and the mouth of power select switch SA is connected with the input end of power conversion switch QP2.

Contactless switch group KM comprises the first contactless switch KM1, the second contactless switch KM2; DC traction motor group M comprises the first DC traction motor M1, the second DC traction motor M2; The first contactless switch KM1 and the first DC traction motor M1 are connected to form the first series arm, and the second contactless switch KM2 is connected to form second series arm in parallel with the first series arm with the second DC traction motor M2.

Claims

1. a double dynamical railcar traction system, is characterized in that: comprise driver controller (AC), permanent power excitation controller (AE), power select switch (SA), diesel powerplant (GS), rectifier (UR), power conversion switch (QP2), contactless switch group (KM), DC traction motor group (M), traction accumulator group (GB), safety fuse cutout (FU), DC contactor (KM3), smoothing reactor (L), chopper (UP), reverser (QP1);

The mouth of diesel powerplant (GS) is connected with the input end of rectifier (UR), and the normally closed contact of the normally closed contact of rectifier (UR), power conversion switch (QP2), contactless switch group (KM), DC traction motor group (M), reverser (QP1) is connected in series successively and forms the first closed series loop;

The open contact of the open contact of traction accumulator group (GB), safety fuse cutout (FU), DC contactor (KM3), smoothing reactor (L), power conversion switch (QP2), contactless switch group (KM), DC traction motor group (M), reverser (QP1), chopper (UP) are connected in series successively and form the second closed series loop;

The mouth of driver controller (AC) is connected with the input end of permanent power excitation controller (AE), the input end of the input end of chopper (UP), reverser (QP1) respectively, the mouth of permanent power excitation controller (AE) is connected with the input end of diesel powerplant (GS), and the mouth of power select switch (SA) is connected with the input end of power conversion switch (QP2).

2. double dynamical railcar traction system according to claim 1, is characterized in that: contactless switch group (KM) comprises the first contactless switch (KM1), the second contactless switch (KM2); DC traction motor group (M) comprises the first DC traction motor (M1), the second DC traction motor (M2); The first contactless switch (KM1) is connected to form the first series arm with the first DC traction motor (M1), and the second contactless switch (KM2) is connected to form second series arm in parallel with the first series arm with the second DC traction motor (M2).