CN201904639U

CN201904639U - Charging device in garage of double-source controlled electrical locomotive

Info

Publication number: CN201904639U
Application number: CN2010206353127U
Authority: CN
Inventors: 张彦林; 马晓宁; 蓝正升; 张树勋
Original assignee: CSR Zhuzhou Electric Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2010-11-30
Filing date: 2010-11-30
Publication date: 2011-07-20
Anticipated expiration: 2020-11-30

Abstract

The utility model relates to a charging device in a garage of a double-source controlled electrical locomotive. The charging device comprises a traction transformer, a traction storage battery pack, an integrated traction current transformer, an auxiliary transformer, an auxiliary pre-charging loop and a power socket for the garage, wherein the auxiliary transformer, the auxiliary pre-charging loop and a phase sequence detector are electrically connected between the integrated traction current transformer and the power socket for the garage; the power socket for the garage is electrically connected with a ground 3AC380V power supply. In the charging device, the traction storage battery pack is charged by using an auxiliary power system of the locomotive; direct-current voltages with a plurality of voltage levels can be converted through the auxiliary transformer and an auxiliary pulse-width modulation (PWM) inverter; the requirements on charging voltages of different traction storage battery packs are met; the required 3AC380V ground power supply is very easy to provide; the charging device has a wide application range; and the problem of charging a vehicle-carried storage battery in the garage is better solved.

Description

Charging device in a kind of double source system electric locomotive storehouse

Technical field

The utility model relates to a kind of charging device, specifically relates to power accumulator as charging device in the power accumulator storehouse of the AC transmission electric power locomotive of power supply.

Background technology

At present, storage battery has been widely used in field of traffic as power source.In the railway locomotive industry, all the time, storage battery is mainly as the back-up source of control system.Along with the requirement of low-carbon (LC), environmental protection, energy-conservation industry, railway locomotive also begins to research and develop the electric locomotive with the power accumulator traction, is mainly used in the dead track of rail yard, replaces diesel locomotive, finish shunt, function such as vehicle marshalling.Because needed power accumulator capacity is big, voltage height, locomotive are difficult to find suitable ground charge power supply when charging in the storehouse, for the popularization of this type locomotive brings certain difficulty.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provides a kind of with charging device in the electric locomotive double source system electric locomotive storehouse of power accumulator traction.

The utility model includes traction transformer, traction accumulator group, integrated traction convertor, auxiliary transformer, auxiliary precharge loop, storehouse supply socket, it is characterized in that: described integrated traction convertor is by traction transformer precharge unit and traction accumulator precharge unit, direct current intermediate circuit, charging module, four-quadrant rectifier, traction PWM inverter, auxiliary PWM inverter is electrically connected to be formed; Described integrated traction convertor and storehouse are with being electrically connected with auxiliary transformer, auxiliary precharge loop, phase sequence detection between the supply socket; Described storehouse is electrically connected ground 3AC380V power supply with supply socket.

An output of described auxiliary transformer is connected with auxiliary system.

The utility model has utilized the secondary power system of locomotive itself to be the charging of traction accumulator group, because through auxiliary transformer and auxiliary PWM inverter, so can convert the direct voltage of multiple voltage grade to, satisfy the charging voltage requirement of different traction accumulator groups, and required 3AC380V ground power supply also provides easily, wide accommodation has solved charging problem in the storehouse of vehicle-mounted power accumulator preferably.

Description of drawings

Accompanying drawing is circuit theory diagrams of the present utility model.

Among the figure: 1, traction transformer, 2, traction transformer precharge unit, 3, four-quadrant rectifier, 4, direct current intermediate circuit, 5, traction PWM inverter, 6, auxiliary PWM inverter, 7, charging module, 8, the traction accumulator precharge unit, 9, the traction accumulator group, 10, integrated traction convertor, 11, auxiliary transformer, 12, auxiliary precharge loop, 13, phase sequence detects, 14, storehouse supply socket, 15,25kV contact line, 16, locomotive, 17, buzzer, 18, auxiliary system, 19, central control unit

Embodiment

The utility model includes traction transformer 1, traction accumulator group 9, integrated traction convertor 10, auxiliary transformer 11, auxiliary precharge loop 12, storehouse supply socket 14.Integrated traction convertor 10 is by traction transformer precharge unit 2 and traction accumulator precharge unit 8, direct current intermediate circuit 4, charging module 7, four-quadrant rectifier 3, traction PWM inverter 5, auxiliary PWM inverter 6 is electrically connected to be formed, the input of traction transformer 1 be connected with 25kV contact line 15 afterwards and traction accumulator group 9 as two power resources of locomotive 16.

Integrated traction convertor 10 and storehouse are with being electrically connected with auxiliary transformer 11, auxiliary precharge loop 12, phase sequence detection 13 between the supply socket 14.The storehouse is electrically connected ground 3AC380V power supply with supply socket 14.An output of auxiliary transformer 11 is connected with auxiliary system 18.An output of phase sequence detection 13 is connected with buzzer 17.

When locomotive 16 was 9 chargings of traction accumulator group in the storehouse, ground 3AC380V power supply inserted the storehouse of locomotive 16 with supply socket 14, detects 13 through phase sequence and detects power phase, if the phase sequence mistake is sent warning by buzzer 17; After correct, power supply enters auxiliary precharge loop 12 and auxiliary transformer 11, with inputing to auxiliary PWM inverter 6 after the voltage rising again, be rectified into the DC charging voltage that is fit to traction accumulator group 9 then and output to direct current intermediate circuit 4, be 9 chargings of traction accumulator group through charging module 7 again.After finishing, charging provides signal.

Traction accumulator precharge unit 8 is the discharge paths when drawing as traction accumulator, traction accumulator precharge unit 8 and charging module 7 interlockings, and charging module 7 is open-minded when promptly charging, and traction accumulator precharge unit 8 is turn-offed, and is opposite during discharge.This logical relation is finished by central control unit 19.

Claims

1. charging device in the double source system electric locomotive storehouse, include traction transformer (1), traction accumulator group (9), integrated traction convertor (10), auxiliary transformer (11), auxiliary precharge loop (12), storehouse supply socket (14), it is characterized in that: described integrated traction convertor (10) is by traction transformer precharge unit (2) and traction accumulator precharge unit (8), direct current intermediate circuit (4), charging module (7), four-quadrant rectifier (3), traction PWM inverter (5), auxiliary PWM inverter (6) is electrically connected to be formed; Described integrated traction convertor (10) and storehouse are with being electrically connected with auxiliary transformer (11), auxiliary precharge loop (12), phase sequence detection (13) between the supply socket (14); Described storehouse is electrically connected ground 3AC380V power supply with supply socket (14).

2. charging device according to claim 1 is characterized in that: an output of described auxiliary transformer (11) is connected with auxiliary system (18).